This is a tab-delimited list of names of native and naturalised taxa that are currently
(Tue Sep 15 13:45:38 2009) accepted or tentatively accepted for inclusion in the second edition of The Jepson Manual.
Common names are drawn from the first edition.

Abies amabilis	PINACEAE	PACIFIC SILVER FIR	native	
Abies bracteata	PINACEAE	BRISTLECONE FIR	native	
Abies concolor	PINACEAE	WHITE FIR	native	
Abies grandis	PINACEAE	GRAND FIR	native	
Abies lasiocarpa	PINACEAE	FIR	native	
Abies lasiocarpa var. lasiocarpa	PINACEAE	SUBALPINE FIR	native	
Abies magnifica	PINACEAE	CALIFORNIA RED FIR	native	
Abies magnifica var. magnifica	PINACEAE	FIR	native	
Abies magnifica var. shastensis	PINACEAE	SHASTA RED FIR	native	
Abies procera	PINACEAE	NOBLE FIR	native	
Abronia alpina	NYCTAGINACEAE	RAMSHAW MEADOWS ABRONIA	native	
Abronia latifolia	NYCTAGINACEAE	SAND VERBENA	native	
Abronia maritima	NYCTAGINACEAE	SAND VERBENA	native	
Abronia nana	NYCTAGINACEAE	SAND VERBENA	native	
Abronia nana var. covillei	NYCTAGINACEAE		native	
Abronia pogonantha	NYCTAGINACEAE	SAND VERBENA	native	
Abronia turbinata	NYCTAGINACEAE	SAND VERBENA	native	
Abronia umbellata	NYCTAGINACEAE	SAND VERBENA	native	
Abronia umbellata var. breviflora	NYCTAGINACEAE		native	
Abronia umbellata var. umbellata	NYCTAGINACEAE		native	
Abronia villosa	NYCTAGINACEAE	SAND VERBENA	native	
Abronia villosa var. aurita	NYCTAGINACEAE	SAND VERBENA	native	
Abronia villosa var. villosa	NYCTAGINACEAE	SAND VERBENA	native	
Abutilon palmeri	MALVACEAE	INDIAN MALLOW	native	
Abutilon parvulum	MALVACEAE	INDIAN MALLOW	native	
Abutilon theophrasti	MALVACEAE	VELVET-LEAF	naturalized	
Acacia baileyana	FABACEAE	COOTAMUNDRA WATTLE	naturalized	
Acacia cultriformis	FABACEAE		naturalized	acceptance uncertain
Acacia cyclops	FABACEAE		naturalized	
Acacia dealbata	FABACEAE	SILVER WATTLE	naturalized	
Acacia elata	FABACEAE	CEDAR WATTLE	naturalized	
Acacia longifolia	FABACEAE	GOLDEN WATTLE; SYDNEY GOLDEN WATTLE	naturalized	
Acacia melanoxylon	FABACEAE	BLACKWOOD ACACIA	naturalized	
Acacia paradoxa	FABACEAE	KANGAROO THORN	naturalized	
Acacia pycnantha	FABACEAE	GOLDEN WATTLE	naturalized	
Acacia redolens	FABACEAE		naturalized	acceptance uncertain
Acacia retinodes	FABACEAE	EVERBLOOMING ACACIA	naturalized	
Acacia verticillata	FABACEAE	PRICKLY MOSES; STAR ACACIA	naturalized	
Acaena novae-zelandiae	ROSACEAE	BIDDY-BIDDY	naturalized	
Acaena pinnatifida	ROSACEAE		native	
Acaena pinnatifida var. californica	ROSACEAE		native	
Acalypha californica	EUPHORBIACEAE		native	
Acamptopappus shockleyi	ASTERACEAE	GOLDENHEAD	native	
Acamptopappus sphaerocephalus	ASTERACEAE	GOLDENHEAD	native	
Acamptopappus sphaerocephalus var. hirtellus	ASTERACEAE	GOLDENHEAD	native	
Acamptopappus sphaerocephalus var. sphaerocephalus	ASTERACEAE	GOLDENHEAD	native	
Acanthomintha duttonii	LAMIACEAE	SAN MATEO THORNMINT	native	
Acanthomintha ilicifolia	LAMIACEAE	SAN DIEGO THORNMINT	native	
Acanthomintha lanceolata	LAMIACEAE	SANTA CLARA THORNMINT	native	
Acanthomintha obovata	LAMIACEAE	THORNMINT	native	
Acanthomintha obovata subsp. cordata	LAMIACEAE	THORNMINT	native	
Acanthomintha obovata subsp. obovata	LAMIACEAE	SAN BENITO THORNMINT	native	
Acanthoscyphus parishii	POLYGONACEAE		native	
Acanthoscyphus parishii var. abramsii	POLYGONACEAE		native	
Acanthoscyphus parishii var. cienegensis	POLYGONACEAE		native	
Acanthoscyphus parishii var. goodmaniana	POLYGONACEAE		native	
Acanthoscyphus parishii var. parishii	POLYGONACEAE		native	
Acer campestre	SAPINDACEAE		naturalized	
Acer circinatum	SAPINDACEAE	VINE MAPLE	native	
Acer glabrum	SAPINDACEAE	MOUNTAIN MAPLE	native	
Acer glabrum var. diffusum	SAPINDACEAE	MAPLE	native	
Acer glabrum var. greenei	SAPINDACEAE	MAPLE	native	
Acer glabrum var. torreyi	SAPINDACEAE	MAPLE	native	
Acer macrophyllum	SAPINDACEAE	BIG-LEAF MAPLE	native	
Acer negundo	SAPINDACEAE	MAPLE	native	
Acer negundo var. californicum	SAPINDACEAE	BOX ELDER	native	
Acer saccharinum	SAPINDACEAE		naturalized	
Achillea millefolium	ASTERACEAE	MILFOIL; YARROW	native	
Achlys californica	BERBERIDACEAE	DEER FOOT; VANILLA LEAF	native	
Achlys triphylla	BERBERIDACEAE	DEER FOOT; VANILLA LEAF	native	
Achlys triphylla subsp. triphylla	BERBERIDACEAE	DEER FOOT; VANILLA LEAF	native	
Achnatherum aridum	POACEAE	MORMON NEEDLEGRASS	native	
Achnatherum brachychaetum	POACEAE	NEEDLEGRASS	naturalized	
Achnatherum coronatum	POACEAE	NEEDLEGRASS	native	
Achnatherum diegoense	POACEAE	SAN DIEGO COUNTY NEEDLEGRASS	native	
Achnatherum hymenoides	POACEAE	INDIAN RICEGRASS	native	
Achnatherum latiglume	POACEAE	NEEDLEGRASS	native	
Achnatherum lemmonii	POACEAE	NEEDLEGRASS	native	
Achnatherum lemmonii subsp. lemmonii	POACEAE	NEEDLEGRASS	native	
Achnatherum lemmonii subsp. pubescens	POACEAE		native	
Achnatherum lettermanii	POACEAE	LETTERMAN'S NEEDLEGRASS	native	
Achnatherum nelsonii	POACEAE	NEEDLEGRASS	native	
Achnatherum nelsonii subsp. dorei	POACEAE	NEEDLEGRASS	native	
Achnatherum nevadense	POACEAE	NEEDLEGRASS	native	
Achnatherum occidentale	POACEAE	NEEDLEGRASS	native	
Achnatherum occidentale subsp. californicum	POACEAE	NEEDLEGRASS	native	
Achnatherum occidentale subsp. occidentale	POACEAE	NEEDLEGRASS	native	
Achnatherum occidentale subsp. pubescens	POACEAE	NEEDLEGRASS	native	
Achnatherum parishii	POACEAE	NEEDLEGRASS	native	
Achnatherum pinetorum	POACEAE	NEEDLEGRASS	native	
Achnatherum speciosum	POACEAE	DESERT NEEDLEGRASS	native	
Achnatherum stillmanii	POACEAE	NEEDLEGRASS	native	
Achnatherum thurberianum	POACEAE	NEEDLEGRASS	native	
Achnatherum webberi	POACEAE	NEEDLEGRASS	native	
Achyrachaena mollis	ASTERACEAE	BLOW-WIVES	native	
Achyronychia cooperi	CARYOPHYLLACEAE	FROST-MAT; ONYX FLOWER	native	
Acleisanthes longiflora	NYCTAGINACEAE	ANGEL TRUMPETS	native	
Acleisanthes nevadensis	NYCTAGINACEAE		native	
Aconitum columbianum	RANUNCULACEAE	MONKSHOOD	native	
Aconogonon davisiae	POLYGONACEAE		native	
Aconogonon newberryi	POLYGONACEAE		native	
Aconogonon phytolaccifolium	POLYGONACEAE		native	
Acourtia microcephala	ASTERACEAE		native	
Acrachne racemosa	POACEAE		naturalized	acceptance uncertain
Acroptilon repens	ASTERACEAE	RUSSIAN KNAPWEED	naturalized	
Actaea rubra	RANUNCULACEAE	BANEBERRY	native	
Adenocaulon bicolor	ASTERACEAE	TRAIL PLANT	native	
Adenophyllum cooperi	ASTERACEAE		native	
Adenophyllum porophylloides	ASTERACEAE		native	
Adenostoma fasciculatum	ROSACEAE	CHAMISE	native	
Adenostoma sparsifolium	ROSACEAE	RED SHANK	native	
Adiantum aleuticum	PTERIDACEAE	FIVE-FINGER FERN	native	
Adiantum capillus-veneris	PTERIDACEAE	SOUTHERN MAIDEN-HAIR	native	
Adiantum jordanii	PTERIDACEAE	CALIFORNIA MAIDEN-HAIR	native	
Adolphia californica	RHAMNACEAE	CALIFORNIA ADOLPHIA; SPINESHRUB	native	
Adonis aestivalis	RANUNCULACEAE		naturalized	
Aegilops cylindrica	POACEAE	JOINTED GOATGRASS	naturalized	
Aegilops ovata	POACEAE	GOATGRASS	naturalized	
Aegilops triuncialis	POACEAE	BARBED GOATGRASS	naturalized	
Aeonium arboreum	CRASSULACEAE		naturalized	
Aeonium arboreum var. arboreum	CRASSULACEAE		naturalized	
Aeonium haworthii	CRASSULACEAE		naturalized	
Aesculus californica	SAPINDACEAE	CALIFORNIA BUCKEYE	native	
Agastache parvifolia	LAMIACEAE	HORSEMINT	native	
Agastache urticifolia	LAMIACEAE	HORSEMINT	native	
Agave deserti	AGAVACEAE		native	
Agave deserti var. deserti	AGAVACEAE		native	
Agave deserti var. simplex	AGAVACEAE		native	
Agave shawii	AGAVACEAE	SHAW'S AGAVE	native	
Agave shawii var. shawii	AGAVACEAE		native	
Agave utahensis	AGAVACEAE	UTAH AGAVE	native	
Agave utahensis var. eborispina	AGAVACEAE		native	
Agave utahensis var. nevadensis	AGAVACEAE		native	
Ageratina adenophora	ASTERACEAE		naturalized	
Ageratina herbacea	ASTERACEAE		native	
Ageratina occidentalis	ASTERACEAE		native	
Ageratina shastensis	ASTERACEAE	SHASTA EUPATORIUM	native	
Agoseris apargioides	ASTERACEAE		native	
Agoseris apargioides var. apargioides	ASTERACEAE		native	
Agoseris apargioides var. eastwoodiae	ASTERACEAE		native	
Agoseris aurantiaca	ASTERACEAE		native	
Agoseris elata	ASTERACEAE		native	
Agoseris glauca	ASTERACEAE		native	
Agoseris glauca var. glauca	ASTERACEAE		native	
Agoseris glauca var. monticola	ASTERACEAE		native	
Agoseris grandiflora	ASTERACEAE		native	
Agoseris grandiflora var. grandiflora	ASTERACEAE		native	
Agoseris grandiflora var. leptophylla	ASTERACEAE		native	
Agoseris heterophylla	ASTERACEAE		native	
Agoseris heterophylla var. cryptopleura	ASTERACEAE		native	
Agoseris heterophylla var. heterophylla	ASTERACEAE		native	
Agoseris hirsuta	ASTERACEAE		native	
Agoseris parviflora	ASTERACEAE		native	
Agoseris retrorsa	ASTERACEAE		native	
Agrimonia gryposepala	ROSACEAE	COMMON AGRIMONY	native	
Agrimonia striata	ROSACEAE		native	
Agropyron cristatum	POACEAE		naturalized	acceptance uncertain
Agropyron desertorum	POACEAE	DESERT CRESTED WHEATGRASS	naturalized	
Agrostemma githago	CARYOPHYLLACEAE	CORN-COCKLE	naturalized	
Agrostemma githago var. githago	CARYOPHYLLACEAE		naturalized	
Agrostis avenacea	POACEAE	BENT	naturalized	
Agrostis blasdalei	POACEAE	BLASDALE'S BENT GRASS	native	
Agrostis capillaris	POACEAE	COLONIAL BENT	naturalized	
Agrostis densiflora	POACEAE	BENT	native	
Agrostis elliottiana	POACEAE	BENT	native	
Agrostis exarata	POACEAE	BENT	native	
Agrostis gigantea	POACEAE	BENT	naturalized	
Agrostis hallii	POACEAE	BENT	native	
Agrostis hendersonii	POACEAE	HENDERSON'S BENT GRASS	native	
Agrostis hooveri	POACEAE	HOOVER'S BENT GRASS	native	
Agrostis humilis	POACEAE	MOUNTAIN BENT GRASS	native	
Agrostis idahoensis	POACEAE	BENT	native	
Agrostis microphylla	POACEAE	BENT	native	
Agrostis oregonensis	POACEAE	BENT	native	
Agrostis pallens	POACEAE	BENT	native	
Agrostis scabra	POACEAE	BENT	native	
Agrostis semiverticillata	POACEAE	BENT	native	acceptance uncertain
Agrostis stolonifera	POACEAE	CREEPING BENT	naturalized	
Agrostis tandilensis	POACEAE	BENT	naturalized	
Agrostis thurberiana	POACEAE	BENT	native	
Agrostis variabilis	POACEAE	BENT	native	
Ailanthus altissima	SIMAROUBACEAE	TREE OF HEAVEN	naturalized	
Aira caryophyllea	POACEAE	SILVER EUROPEAN HAIRGRASS	naturalized	
Aira elegantissima	POACEAE	ELEGANT EUROPEAN HAIRGRASS	naturalized	
Aira praecox	POACEAE	EUROPEAN HAIRGRASS	naturalized	
Albizia julibrissin	FABACEAE		naturalized	
Albizia lophantha	FABACEAE	PLUME ACACIA	naturalized	
Alcea rosea	MALVACEAE	HOLLYHOCK	naturalized	
Alhagi maurorum	FABACEAE		naturalized	
Aliciella humillima	POLEMONIACEAE		native	acceptance uncertain
Aliciella hutchinsifolia	POLEMONIACEAE		native	acceptance uncertain
Aliciella latifolia	POLEMONIACEAE		native	acceptance uncertain
Aliciella latifolia subsp. imperialis	POLEMONIACEAE		native	acceptance uncertain
Aliciella latifolia subsp. latifolia	POLEMONIACEAE		native	acceptance uncertain
Aliciella lottiae	POLEMONIACEAE		native	acceptance uncertain
Aliciella micromeria	POLEMONIACEAE		native	acceptance uncertain
Aliciella ripleyi	POLEMONIACEAE		native	acceptance uncertain
Aliciella triodon	POLEMONIACEAE		native	acceptance uncertain
Alisma gramineum	ALISMATACEAE	WATER PLANTAIN	native	
Alisma lanceolatum	ALISMATACEAE	WATER PLANTAIN	naturalized	
Alisma triviale	ALISMATACEAE		native	
Allenrolfea occidentalis	CHENOPODIACEAE	IODINE BUSH	native	
Allionia incarnata	NYCTAGINACEAE	TRAILING FOUR O'CLOCK; WINDMILLS	native	
Allionia incarnata var. incarnata	NYCTAGINACEAE		native	
Allionia incarnata var. villosa	NYCTAGINACEAE		native	
Allium abramsii	ALLIACEAE	GARLIC; ONION	native	
Allium acuminatum	ALLIACEAE	GARLIC; ONION	native	
Allium amplectens	ALLIACEAE	GARLIC; ONION	native	
Allium anceps	ALLIACEAE	GARLIC; ONION	native	
Allium atrorubens	ALLIACEAE	GARLIC; ONION	native	
Allium atrorubens var. atrorubens	ALLIACEAE	GARLIC; ONION	native	
Allium atrorubens var. cristatum	ALLIACEAE	GARLIC; ONION	native	
Allium bisceptrum	ALLIACEAE	GARLIC; ONION	native	
Allium bolanderi	ALLIACEAE	GARLIC; ONION	native	
Allium bolanderi var. bolanderi	ALLIACEAE	GARLIC; ONION	native	
Allium bolanderi var. mirabile	ALLIACEAE	GARLIC; ONION	native	
Allium burlewii	ALLIACEAE	GARLIC; ONION	native	
Allium campanulatum	ALLIACEAE	GARLIC; ONION	native	
Allium cratericola	ALLIACEAE	GARLIC; ONION	native	
Allium crispum	ALLIACEAE	GARLIC; ONION	native	
Allium denticulatum	ALLIACEAE	GARLIC; ONION	native	
Allium diabolense	ALLIACEAE	GARLIC; ONION	native	
Allium dichlamydeum	ALLIACEAE	GARLIC; ONION	native	
Allium falcifolium	ALLIACEAE	GARLIC; ONION	native	
Allium fimbriatum	ALLIACEAE	GARLIC; ONION	native	
Allium fimbriatum var. fimbriatum	ALLIACEAE	GARLIC; ONION	native	
Allium fimbriatum var. mohavense	ALLIACEAE	GARLIC; ONION	native	
Allium fimbriatum var. purdyi	ALLIACEAE	PURDY'S ONION	native	
Allium haematochiton	ALLIACEAE	GARLIC; ONION	native	
Allium hickmanii	ALLIACEAE	HICKMAN'S ONION	native	
Allium hoffmanii	ALLIACEAE	GARLIC; ONION	native	
Allium howellii	ALLIACEAE	GARLIC; ONION	native	
Allium howellii var. clokeyi	ALLIACEAE	GARLIC; ONION	native	
Allium howellii var. howellii	ALLIACEAE	GARLIC; ONION	native	
Allium howellii var. sanbenitense	ALLIACEAE	GARLIC; ONION	native	
Allium hyalinum	ALLIACEAE	GARLIC; ONION	native	
Allium jepsonii	ALLIACEAE	JEPSON'S ONION	native	
Allium lacunosum	ALLIACEAE	GARLIC; ONION	native	
Allium lacunosum var. davisiae	ALLIACEAE	GARLIC; ONION	native	
Allium lacunosum var. kernense	ALLIACEAE	GARLIC; ONION	native	
Allium lacunosum var. lacunosum	ALLIACEAE	GARLIC; ONION	native	
Allium lacunosum var. micranthum	ALLIACEAE	GARLIC; ONION	native	
Allium lemmonii	ALLIACEAE	GARLIC; ONION	native	
Allium marvinii	ALLIACEAE		native	
Allium membranaceum	ALLIACEAE	GARLIC; ONION	native	
Allium monticola	ALLIACEAE	GARLIC; ONION	native	
Allium munzii	ALLIACEAE	MUNZ'S ONION	native	
Allium neapolitanum	ALLIACEAE	GARLIC; ONION	naturalized	
Allium nevadense	ALLIACEAE	GARLIC; ONION	native	
Allium obtusum	ALLIACEAE	GARLIC; ONION	native	
Allium obtusum var. conspicuum	ALLIACEAE	GARLIC; ONION	native	
Allium obtusum var. obtusum	ALLIACEAE	GARLIC; ONION	native	
Allium paniculatum	ALLIACEAE	GARLIC; ONION	naturalized	
Allium paniculatum var. paniculatum	ALLIACEAE	GARLIC; ONION	naturalized	
Allium parishii	ALLIACEAE	PARISH'S ONION	native	
Allium parryi	ALLIACEAE	GARLIC; ONION	native	
Allium parvum	ALLIACEAE	GARLIC; ONION	native	
Allium peninsulare	ALLIACEAE	GARLIC; ONION	native	
Allium peninsulare var. franciscanum	ALLIACEAE	GARLIC; ONION	native	
Allium peninsulare var. peninsulare	ALLIACEAE	GARLIC; ONION	native	
Allium platycaule	ALLIACEAE	GARLIC; ONION	native	
Allium praecox	ALLIACEAE	GARLIC; ONION	native	
Allium punctum	ALLIACEAE	GARLIC; ONION	native	
Allium sanbornii	ALLIACEAE	GARLIC; ONION	native	
Allium sanbornii var. congdonii	ALLIACEAE	CONGDON'S ONION	native	
Allium sanbornii var. sanbornii	ALLIACEAE	SANBORN'S ONION	native	
Allium serra	ALLIACEAE	GARLIC; ONION	native	
Allium sharsmithiae	ALLIACEAE	SHARSMITH'S ONION	native	
Allium shevockii	ALLIACEAE	SPANISH NEEDLE ONION	native	
Allium siskiyouense	ALLIACEAE	SISKIYOU ONION	native	
Allium tolmiei	ALLIACEAE	GARLIC; ONION	native	
Allium tolmiei var. tolmiei	ALLIACEAE	GARLIC; ONION	native	
Allium tribracteatum	ALLIACEAE	THREE-BRACTED ONION	native	
Allium triquetrum	ALLIACEAE	GARLIC; ONION	naturalized	
Allium tuolumnense	ALLIACEAE	RAWHIDE HILL ONION	native	
Allium unifolium	ALLIACEAE	GARLIC; ONION	native	
Allium validum	ALLIACEAE	GARLIC; ONION	native	
Allium vineale	ALLIACEAE	GARLIC; ONION	naturalized	
Allium yosemitense	ALLIACEAE	YOSEMITE ONION	native	
Allophyllum divaricatum	POLEMONIACEAE		native	
Allophyllum gilioides	POLEMONIACEAE		native	
Allophyllum gilioides subsp. gilioides	POLEMONIACEAE		native	
Allophyllum gilioides subsp. violaceum	POLEMONIACEAE		native	
Allophyllum glutinosum	POLEMONIACEAE		native	
Allophyllum integrifolium	POLEMONIACEAE		native	
Allotropa virgata	ERICACEAE	SUGAR STICK	native	
Almutaster pauciflorus	ASTERACEAE		native	
Alnus incana	BETULACEAE	ALDER	native	
Alnus incana subsp. tenuifolia	BETULACEAE	MOUNTAIN ALDER	native	
Alnus rhombifolia	BETULACEAE	WHITE ALDER	native	
Alnus rubra	BETULACEAE	RED ALDER	native	
Alnus viridis	BETULACEAE	ALDER	native	
Alnus viridis subsp. fruticosa	BETULACEAE		native	
Alnus viridis subsp. sinuata	BETULACEAE	SITKA ALDER; THINLEAF ALDER	native	
Alopecurus aequalis	POACEAE	SHORT-AWN FOXTAIL	native	
Alopecurus carolinianus	POACEAE	FOXTAIL	native	
Alopecurus geniculatus	POACEAE	WATER FOXTAIL	native	
Alopecurus myosuroides	POACEAE	FOXTAIL	naturalized	
Alopecurus pratensis	POACEAE	MEADOW FOXTAIL	naturalized	
Alopecurus saccatus	POACEAE	FOXTAIL	native	
Aloysia wrightii	VERBENACEAE	OREGANILLO	native	
Alternanthera caracasana	AMARANTHACEAE		naturalized	
Alternanthera philoxeroides	AMARANTHACEAE	ALLIGATOR WEED	naturalized	
Alyssum alyssoides	BRASSICACEAE		naturalized	
Alyssum desertorum	BRASSICACEAE		naturalized	
Alyssum simplex	BRASSICACEAE		naturalized	
Amaranthus albus	AMARANTHACEAE	TUMBLEWEED	naturalized	
Amaranthus arenicola	AMARANTHACEAE	AMARANTH; PIGWEED	naturalized	
Amaranthus blitoides	AMARANTHACEAE	AMARANTH; PIGWEED	native	
Amaranthus californicus	AMARANTHACEAE	AMARANTH; PIGWEED	native	
Amaranthus caudatus	AMARANTHACEAE	QUILETE	naturalized	
Amaranthus cruentus	AMARANTHACEAE	AMARANTH; PIGWEED	naturalized	
Amaranthus deflexus	AMARANTHACEAE	AMARANTH; PIGWEED	naturalized	
Amaranthus fimbriatus	AMARANTHACEAE	AMARANTH; PIGWEED	native	
Amaranthus hybridus	AMARANTHACEAE	AMARANTH; PIGWEED	naturalized	
Amaranthus palmeri	AMARANTHACEAE	AMARANTH; PIGWEED	native	
Amaranthus powellii	AMARANTHACEAE	AMARANTH; PIGWEED	native	
Amaranthus powellii subsp. bouchonii	AMARANTHACEAE		native	acceptance uncertain
Amaranthus powellii subsp. powellii	AMARANTHACEAE		native	acceptance uncertain
Amaranthus retroflexus	AMARANTHACEAE	AMARANTH; PIGWEED	naturalized	
Amaranthus rudis	AMARANTHACEAE		naturalized	
Amaranthus spinosus	AMARANTHACEAE	AMARANTH; PIGWEED	naturalized	
Amaranthus torreyi	AMARANTHACEAE	AMARANTH; PIGWEED	native	
Amaranthus viridis	AMARANTHACEAE		naturalized	acceptance uncertain
Amaranthus watsonii	AMARANTHACEAE	AMARANTH; PIGWEED	native	
Amaryllis belladonna	AMARYLLIDACEAE		naturalized	
Amauriopsis dissecta	ASTERACEAE		native	
Amblyopappus pusillus	ASTERACEAE		native	
Ambrosia acanthicarpa	ASTERACEAE	ANNUAL BUR-SAGE	native	
Ambrosia ambrosioides	ASTERACEAE	BUR-SAGE; RAGWEED	native	
Ambrosia artemisiifolia	ASTERACEAE	COMMON RAGWEED	naturalized	
Ambrosia chamissonis	ASTERACEAE	BEACH-BUR	native	
Ambrosia chenopodiifolia	ASTERACEAE	SAN DIEGO BUR-SAGE	native	
Ambrosia confertiflora	ASTERACEAE	BUR-SAGE; RAGWEED	native	
Ambrosia dumosa	ASTERACEAE	BURRO-WEED	native	
Ambrosia eriocentra	ASTERACEAE	WOOLLY BUR-SAGE	native	
Ambrosia ilicifolia	ASTERACEAE	BUR-SAGE; RAGWEED	native	
Ambrosia monogyra	ASTERACEAE		native	
Ambrosia psilostachya	ASTERACEAE	WESTERN RAGWEED	native	
Ambrosia pumila	ASTERACEAE	SAN DIEGO AMBROSIA	native	
Ambrosia salsola	ASTERACEAE		native	
Ambrosia salsola var. fasciculata	ASTERACEAE		native	
Ambrosia salsola var. pentalepis	ASTERACEAE		native	
Ambrosia salsola var. salsola	ASTERACEAE		native	
Ambrosia trifida	ASTERACEAE	GIANT RAGWEED	naturalized	
Ambrosia × platyspina	ASTERACEAE		native	
Amelanchier alnifolia	ROSACEAE	SERVICE-BERRY	native	
Amelanchier alnifolia var. pumila	ROSACEAE	SERVICE-BERRY	native	
Amelanchier alnifolia var. semiintegrifolia	ROSACEAE	SERVICE-BERRY	native	
Amelanchier utahensis	ROSACEAE	UTAH SERVICE-BERRY	native	
Amelanchier utahensis var. covillei	ROSACEAE		native	acceptance uncertain
Amelanchier utahensis var. utahensis	ROSACEAE		native	acceptance uncertain
Ammannia coccinea	LYTHRACEAE		native	
Ammannia robusta	LYTHRACEAE		native	
Ammi majus	APIACEAE		naturalized	
Ammi visnaga	APIACEAE	BISNAGA	naturalized	
Ammophila arenaria	POACEAE	EUROPEAN BEACHGRASS	naturalized	
Ammoselinum giganteum	APIACEAE	DESERT SAND-PARSLEY	native	
Amorpha californica	FABACEAE	FALSE INDIGO	native	
Amorpha californica var. californica	FABACEAE	FALSE INDIGO	native	
Amorpha californica var. napensis	FABACEAE	FALSE INDIGO	native	
Amorpha fruticosa	FABACEAE	FALSE INDIGO	native	
Ampelodesmos mauritanicus	POACEAE		naturalized	
Ampelopsis brevipedunculata	VITACEAE		naturalized	acceptance uncertain
Amphibromus neesii	POACEAE		naturalized	
Amphipappus fremontii	ASTERACEAE	CHAFF-BUSH	native	
Amphipappus fremontii var. fremontii	ASTERACEAE	CHAFF-BUSH	native	
Amphipappus fremontii var. spinosus	ASTERACEAE	CHAFF-BUSH	native	
Amphiscirpus nevadensis	CYPERACEAE		native	
Amsinckia douglasiana	BORAGINACEAE	FIDDLENECK	native	
Amsinckia eastwoodiae	BORAGINACEAE	FIDDLENECK	native	
Amsinckia grandiflora	BORAGINACEAE	LARGE-FLOWERED FIDDLENECK	native	
Amsinckia lunaris	BORAGINACEAE	BENT-FLOWERED FIDDLENECK	native	
Amsinckia lycopsoides	BORAGINACEAE	FIDDLENECK	native	
Amsinckia menziesii	BORAGINACEAE	RANCHER'S FIREWEED	native	
Amsinckia menziesii var. intermedia	BORAGINACEAE	FIDDLENECK	native	
Amsinckia menziesii var. menziesii	BORAGINACEAE	FIDDLENECK	native	
Amsinckia spectabilis	BORAGINACEAE	FIDDLENECK	native	
Amsinckia spectabilis var. microcarpa	BORAGINACEAE	FIDDLENECK	native	
Amsinckia spectabilis var. spectabilis	BORAGINACEAE	FIDDLENECK	native	
Amsinckia tessellata	BORAGINACEAE	DEVIL'S LETTUCE	native	
Amsinckia tessellata var. gloriosa	BORAGINACEAE	FIDDLENECK	native	
Amsinckia tessellata var. tessellata	BORAGINACEAE	FIDDLENECK	native	
Amsinckia vernicosa	BORAGINACEAE	FIDDLENECK	native	
Amsinckia vernicosa var. furcata	BORAGINACEAE	FORKED FIDDLENECK	native	
Amsinckia vernicosa var. vernicosa	BORAGINACEAE	FIDDLENECK	native	
Amsonia tomentosa	APOCYNACEAE		native	
Anagallis arvensis	MYRSINACEAE	POOR-MAN'S WEATHERGLASS; SCARLET PIMPERNEL	naturalized	
Anagallis minima	MYRSINACEAE		native	
Anaphalis margaritacea	ASTERACEAE	PEARLY EVERLASTING	native	
Anchusa arvensis	BORAGINACEAE	ALKANET; BUGLOSS	naturalized	
Anchusa azurea	BORAGINACEAE	ALKANET; BUGLOSS	naturalized	
Anchusa officinalis	BORAGINACEAE	ALKANET; BUGLOSS	naturalized	
Ancistrocarphus filagineus	ASTERACEAE	WOOLLY FISHHOOKS	native	
Ancistrocarphus keilii	ASTERACEAE		native	
Andropogon glomeratus	POACEAE	BLUESTEM	native	
Andropogon glomeratus var. scabriglumis	POACEAE	SOUTHWESTERN BUSHY BLUESTEM	native	
Andropogon virginicus	POACEAE	BLUESTEM	naturalized	
Andropogon virginicus var. virginicus	POACEAE	BROOMSEDGE BLUESTEM	naturalized	
Androsace elongata	PRIMULACEAE	FAIRY-CANDELABRA; ROCK-JASMINE	native	
Androsace elongata subsp. acuta	PRIMULACEAE	FAIRY-CANDELABRA; ROCK-JASMINE	native	
Androsace filiformis	PRIMULACEAE	SLENDER-STEMMED ANDROSACE	native	
Androsace occidentalis	PRIMULACEAE	FAIRY-CANDELABRA; ROCK-JASMINE	native	
Androsace septentrionalis	PRIMULACEAE	FAIRY-CANDELABRA; ROCK-JASMINE	native	
Androstephium breviflorum	LILIACEAE		native	
Anelsonia eurycarpa	BRASSICACEAE		native	
Anemone deltoidea	RANUNCULACEAE	ANEMONE	native	
Anemone drummondii	RANUNCULACEAE	ANEMONE	native	
Anemone multifida	RANUNCULACEAE	GLOBE ANEMONE	native	
Anemone occidentalis	RANUNCULACEAE	ANEMONE	native	
Anemone oregana	RANUNCULACEAE	ANEMONE	native	
Anemone tuberosa	RANUNCULACEAE	ANEMONE	native	
Anemopsis californica	SAURURACEAE	YERBA MANSA	native	
Anethum graveolens	APIACEAE	DILL	naturalized	
Angelica arguta	APIACEAE	ANGELICA	native	
Angelica breweri	APIACEAE		native	
Angelica californica	APIACEAE		native	
Angelica callii	APIACEAE	CALL'S ANGELICA	native	
Angelica genuflexa	APIACEAE		native	
Angelica hendersonii	APIACEAE		native	
Angelica kingii	APIACEAE		native	
Angelica lineariloba	APIACEAE		native	
Angelica lucida	APIACEAE		native	
Angelica tomentosa	APIACEAE		native	
Anisocarpus madioides	ASTERACEAE		native	
Anisocarpus scabridus	ASTERACEAE		native	
Anisocoma acaulis	ASTERACEAE	SCALE BUD	native	
Anoda cristata	MALVACEAE	VIOLETTAS	naturalized	
Antennaria argentea	ASTERACEAE	PUSSY-TOES	native	
Antennaria corymbosa	ASTERACEAE	PUSSY-TOES	native	
Antennaria dimorpha	ASTERACEAE	PUSSY-TOES	native	
Antennaria flagellaris	ASTERACEAE	STOLONIFEROUS PUSSY-TOES	native	
Antennaria geyeri	ASTERACEAE	PUSSY-TOES	native	
Antennaria howellii	ASTERACEAE	PUSSY-TOES	native	
Antennaria howellii subsp. howellii	ASTERACEAE	PUSSY-TOES	native	
Antennaria lanata	ASTERACEAE		native	
Antennaria luzuloides	ASTERACEAE	PUSSY-TOES	native	
Antennaria luzuloides subsp. aberrans	ASTERACEAE		native	
Antennaria luzuloides subsp. luzuloides	ASTERACEAE		native	
Antennaria marginata	ASTERACEAE	PUSSY-TOES	native	
Antennaria media	ASTERACEAE	PUSSY-TOES	native	
Antennaria pulchella	ASTERACEAE	BEAUTIFUL PUSSY-TOES	native	
Antennaria racemosa	ASTERACEAE	PUSSY-TOES	native	
Antennaria rosea	ASTERACEAE	PUSSY-TOES	native	
Antennaria rosea subsp. confinis	ASTERACEAE	PUSSY-TOES	native	
Antennaria rosea subsp. rosea	ASTERACEAE	PUSSY-TOES	native	
Antennaria suffrutescens	ASTERACEAE	EVERGREEN EVERLASTING	native	
Antennaria umbrinella	ASTERACEAE	PUSSY-TOES	native	
Anthemis arvensis	ASTERACEAE	CORN CHAMOMILE	naturalized	
Anthemis cotula	ASTERACEAE	DOG-FENNEL; MAYWEED; STINKWEED	naturalized	
Anthemis tinctoria	ASTERACEAE	GOLDEN MARGUERITE	naturalized	
Anthoxanthum aristatum	POACEAE	VERNAL GRASS	naturalized	
Anthoxanthum odoratum	POACEAE	SWEET VERNAL GRASS	naturalized	
Anthriscus caucalis	APIACEAE	BUR-CHERVIL	naturalized	
Antirrhinum cornutum	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum coulterianum	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum cyathiferum	PLANTAGINACEAE	DEEP CANYON SNAPDRAGON	native	
Antirrhinum filipes	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum kelloggii	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum kingii	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum leptaleum	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum majus	PLANTAGINACEAE	SNAPDRAGON	naturalized	
Antirrhinum multiflorum	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum nuttallianum	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum nuttallianum subsp. nuttallianum	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum nuttallianum subsp. subsessile	PLANTAGINACEAE	SNAPDRAGON	native	
Antirrhinum orontium	PLANTAGINACEAE	SNAPDRAGON	naturalized	
Antirrhinum ovatum	PLANTAGINACEAE	OVAL-LEAVED SNAPDRAGON	native	
Antirrhinum subcordatum	PLANTAGINACEAE	DIMORPHIC SNAPDRAGON	native	
Antirrhinum vexillocalyculatum	PLANTAGINACEAE		native	
Antirrhinum vexillocalyculatum subsp. breweri	PLANTAGINACEAE		native	
Antirrhinum vexillocalyculatum subsp. intermedium	PLANTAGINACEAE		native	
Antirrhinum vexillocalyculatum subsp. vexillocalyculatum	PLANTAGINACEAE		native	
Antirrhinum virga	PLANTAGINACEAE	TALL SNAPDRAGON	native	
Anulocaulis annulatus	NYCTAGINACEAE	RINGSTEM	native	
Apera interrupta	POACEAE		naturalized	
Apera spica-venti	POACEAE		naturalized	
Aphanes occidentalis	ROSACEAE		native	
Aphanisma blitoides	CHENOPODIACEAE	APHANISMA	native	
Apiastrum angustifolium	APIACEAE		native	
Apium graveolens	APIACEAE	CELERY	naturalized	
Apium nodiflorum	APIACEAE		naturalized	
Apocynum androsaemifolium	APOCYNACEAE	BITTER DOGBANE	native	
Apocynum cannabinum	APOCYNACEAE	INDIAN HEMP	native	
Aponogeton distachyos	APONOGETONACEAE		naturalized	
Aptenia cordifolia	AIZOACEAE	BABY SUN ROSE	naturalized	acceptance uncertain
Aquilegia eximia	RANUNCULACEAE	COLUMBINE	native	
Aquilegia formosa	RANUNCULACEAE	COLUMBINE	native	
Aquilegia pubescens	RANUNCULACEAE	COLUMBINE	native	
Arabidopsis thaliana	BRASSICACEAE	MOUSE-EAR CRESS; THALE CRESS	naturalized	
Arabis aculeolata	BRASSICACEAE	WALDO ROCK CRESS	native	
Arabis blepharophylla	BRASSICACEAE	COAST ROCK CRESS	native	
Arabis bodiensis	BRASSICACEAE	BODIE HILLS ROCK CRESS	native	
Arabis breweri	BRASSICACEAE	ROCK CRESS	native	
Arabis breweri var. austiniae	BRASSICACEAE	ROCK CRESS	native	
Arabis breweri var. breweri	BRASSICACEAE	ROCK CRESS	native	
Arabis breweri var. pecuniaria	BRASSICACEAE	SAN BERNARDINO ROCK CRESS	native	
Arabis cobrensis	BRASSICACEAE	MASONIC ROCK CRESS	native	
Arabis constancei	BRASSICACEAE	CONSTANCE'S ROCK CRESS	native	
Arabis davidsonii	BRASSICACEAE	ROCK CRESS	native	
Arabis dispar	BRASSICACEAE	ROCK CRESS	native	
Arabis drummondii	BRASSICACEAE	ROCK CRESS	native	
Arabis fernaldiana	BRASSICACEAE	ROCK CRESS	native	
Arabis fernaldiana var. stylosa	BRASSICACEAE	STYLOSE ROCK CRESS	native	
Arabis glabra	BRASSICACEAE	ROCK CRESS	native	
Arabis glabra var. furcatipilis	BRASSICACEAE	ROCK CRESS	native	
Arabis glabra var. glabra	BRASSICACEAE	ROCK CRESS	native	
Arabis glaucovalvula	BRASSICACEAE	ROCK CRESS	native	
Arabis hirsuta	BRASSICACEAE	ROCK CRESS	native	
Arabis hirsuta var. glabrata	BRASSICACEAE	ROCK CRESS	native	
Arabis hirsuta var. pycnocarpa	BRASSICACEAE	ROCK CRESS	native	
Arabis hoffmannii	BRASSICACEAE	HOFFMAN'S ROCK CRESS	native	
Arabis holboellii	BRASSICACEAE	ROCK CRESS	native	
Arabis holboellii var. pinetorum	BRASSICACEAE	ROCK CRESS	native	
Arabis holboellii var. retrofracta	BRASSICACEAE	ROCK CRESS	native	
Arabis inyoensis	BRASSICACEAE	ROCK CRESS	native	
Arabis johnstonii	BRASSICACEAE	JOHNSTON'S ROCK CRESS	native	
Arabis koehleri	BRASSICACEAE	ROCK CRESS	native	
Arabis koehleri var. stipitata	BRASSICACEAE	KOEHLER'S STIPITATE ROCK CRESS	native	
Arabis lemmonii	BRASSICACEAE	ROCK CRESS	native	
Arabis lemmonii var. depauperata	BRASSICACEAE	ROCK CRESS	native	
Arabis lemmonii var. lemmonii	BRASSICACEAE	ROCK CRESS	native	
Arabis lyallii	BRASSICACEAE	ROCK CRESS	native	
Arabis lyallii var. lyallii	BRASSICACEAE	ROCK CRESS	native	
Arabis lyallii var. nubigena	BRASSICACEAE	ROCK CRESS	native	
Arabis macdonaldiana	BRASSICACEAE	MCDONALD'S ROCK CRESS	native	
Arabis modesta	BRASSICACEAE	MODEST ROCK CRESS	native	
Arabis oregana	BRASSICACEAE	OREGON ROCK CRESS	native	
Arabis parishii	BRASSICACEAE	PARISH'S ROCK CRESS	native	
Arabis pendulina	BRASSICACEAE		native	
Arabis perennans	BRASSICACEAE	ROCK CRESS	native	
Arabis pinzliae	BRASSICACEAE	PINZL'S ROCK CRESS	native	
Arabis platysperma	BRASSICACEAE	ROCK CRESS	native	
Arabis platysperma var. howellii	BRASSICACEAE	ROCK CRESS	native	
Arabis platysperma var. platysperma	BRASSICACEAE	ROCK CRESS	native	
Arabis puberula	BRASSICACEAE	ROCK CRESS	native	
Arabis pulchra	BRASSICACEAE	ROCK CRESS	native	
Arabis pulchra var. gracilis	BRASSICACEAE	ROCK CRESS	native	
Arabis pulchra var. munciensis	BRASSICACEAE	DARWIN ROCK CRESS	native	
Arabis pulchra var. pulchra	BRASSICACEAE	ROCK CRESS	native	
Arabis pygmaea	BRASSICACEAE	TULARE COUNTY ROCK CRESS	native	
Arabis rectissima	BRASSICACEAE	ROCK CRESS	native	
Arabis rectissima var. rectissima	BRASSICACEAE	ROCK CRESS	native	
Arabis repanda	BRASSICACEAE	ROCK CRESS	native	
Arabis repanda var. greenei	BRASSICACEAE	ROCK CRESS	native	
Arabis repanda var. repanda	BRASSICACEAE	ROCK CRESS	native	
Arabis rigidissima	BRASSICACEAE	ROCK CRESS	native	
Arabis rigidissima var. rigidissima	BRASSICACEAE	TRINITY MOUNTAINS ROCK CRESS	native	
Arabis rollei	BRASSICACEAE	ROCK CRESS	native	
Arabis shockleyi	BRASSICACEAE	SHOCKLEY'S ROCK CRESS	native	
Arabis sparsiflora	BRASSICACEAE	ROCK CRESS	native	
Arabis sparsiflora var. arcuata	BRASSICACEAE	ROCK CRESS	native	
Arabis sparsiflora var. californica	BRASSICACEAE	ROCK CRESS	native	
Arabis sparsiflora var. sparsiflora	BRASSICACEAE	ROCK CRESS	native	
Arabis sparsiflora var. subvillosa	BRASSICACEAE	ROCK CRESS	native	
Arabis subpinnatifida	BRASSICACEAE	ROCK CRESS	native	
Arabis suffrutescens	BRASSICACEAE	ROCK CRESS	native	
Arabis suffrutescens var. horizontalis	BRASSICACEAE	ROCK CRESS	native	
Arabis suffrutescens var. suffrutescens	BRASSICACEAE	ROCK CRESS	native	
Arabis tiehmii	BRASSICACEAE	TIEHM'S ROCK CRESS	native	
Aralia californica	ARALIACEAE	ELK CLOVER	native	
Araujia sericifera	APOCYNACEAE	BLADDER-FLOWER	naturalized	
Arbutus menziesii	ERICACEAE	PACIFIC MADRONE	native	
Arceuthobium americanum	VISCACEAE	LODGEPOLE-PINE DWARF MISTLETOE	native	
Arceuthobium campylopodum	VISCACEAE	WESTERN DWARF MISTLETOE	native	
Arceuthobium douglasii	VISCACEAE	DOUGLAS-FIR DWARF MISTLETOE	native	
Arctium lappa	ASTERACEAE	BURDOCK	naturalized	
Arctium minus	ASTERACEAE	BURDOCK	naturalized	
Arctomecon merriamii	PAPAVERACEAE	WHITE BEAR POPPY	native	
Arctostaphylos andersonii	ERICACEAE	SANTA CRUZ MANZANITA	native	
Arctostaphylos auriculata	ERICACEAE	MOUNT DIABLO MANZANITA	native	
Arctostaphylos bakeri	ERICACEAE	MANZANITA	native	
Arctostaphylos bakeri subsp. bakeri	ERICACEAE	BAKER'S MANZANITA	native	
Arctostaphylos bakeri subsp. sublaevis	ERICACEAE	THE CEDARS MANZANITA	native	
Arctostaphylos canescens	ERICACEAE	MANZANITA	native	
Arctostaphylos canescens subsp. canescens	ERICACEAE	MANZANITA	native	
Arctostaphylos canescens subsp. sonomensis	ERICACEAE	SONOMA MANZANITA	native	
Arctostaphylos catalinae	ERICACEAE	SANTA CATALINA ISLAND MANZANITA	native	
Arctostaphylos columbiana	ERICACEAE	MANZANITA	native	
Arctostaphylos confertiflora	ERICACEAE	SANTA ROSA ISLAND MANZANITA	native	
Arctostaphylos cruzensis	ERICACEAE	LA CRUZ MANZANITA	native	
Arctostaphylos densiflora	ERICACEAE	VINE HILL MANZANITA	native	
Arctostaphylos edmundsii	ERICACEAE	LITTLE SUR MANZANITA	native	
Arctostaphylos gabilanensis	ERICACEAE		native	
Arctostaphylos gabrielensis	ERICACEAE	SAN GABRIEL MANZANITA	native	
Arctostaphylos glandulosa	ERICACEAE	MANZANITA	native	
Arctostaphylos glandulosa subsp. adamsii	ERICACEAE	MANZANITA	native	
Arctostaphylos glandulosa subsp. crassifolia	ERICACEAE	COSTA BAJA MANZANITA	native	
Arctostaphylos glandulosa subsp. glandulosa	ERICACEAE	MANZANITA	native	
Arctostaphylos glandulosa subsp. glaucomollis	ERICACEAE	MANZANITA	native	
Arctostaphylos glandulosa subsp. leucophylla	ERICACEAE		native	
Arctostaphylos glandulosa subsp. mollis	ERICACEAE	MANZANITA	native	
Arctostaphylos glandulosa subsp. zacaensis	ERICACEAE	MANZANITA	native	
Arctostaphylos glauca	ERICACEAE	MANZANITA	native	
Arctostaphylos glutinosa	ERICACEAE	SCHREIBER'S MANZANITA	native	
Arctostaphylos hispidula	ERICACEAE	HOWELL'S MANZANITA	native	
Arctostaphylos hookeri	ERICACEAE	MANZANITA	native	
Arctostaphylos hookeri subsp. hearstiorum	ERICACEAE	THE HEARSTS' MANZANITA	native	
Arctostaphylos hookeri subsp. hookeri	ERICACEAE	HOOKER'S MANZANITA	native	
Arctostaphylos hookeri subsp. montana	ERICACEAE	TAMALPAIS MANZANITA	native	
Arctostaphylos hookeri subsp. ravenii	ERICACEAE	PRESIDIO MANZANITA	native	
Arctostaphylos hooveri	ERICACEAE	HOOVER'S MANZANITA	native	
Arctostaphylos imbricata	ERICACEAE	SAN BRUNO MOUNTAIN MANZANITA	native	
Arctostaphylos insularis	ERICACEAE	MANZANITA	native	
Arctostaphylos klamathensis	ERICACEAE	KLAMATH MANZANITA	native	
Arctostaphylos luciana	ERICACEAE	SANTA LUCIA MANZANITA	native	
Arctostaphylos malloryi	ERICACEAE	MALLORY'S MANZANITA	native	
Arctostaphylos manzanita	ERICACEAE	MANZANITA	native	
Arctostaphylos manzanita subsp. elegans	ERICACEAE	MANZANITA	native	
Arctostaphylos manzanita subsp. glaucescens	ERICACEAE	MANZANITA	native	
Arctostaphylos manzanita subsp. laevigata	ERICACEAE	MANZANITA	native	
Arctostaphylos manzanita subsp. manzanita	ERICACEAE	MANZANITA	native	
Arctostaphylos manzanita subsp. roofii	ERICACEAE	MANZANITA	native	
Arctostaphylos manzanita subsp. wieslanderi	ERICACEAE	MANZANITA	native	
Arctostaphylos mendocinoensis	ERICACEAE	PYGMY MANZANITA	native	
Arctostaphylos mewukka	ERICACEAE	MANZANITA	native	
Arctostaphylos mewukka subsp. mewukka	ERICACEAE	MANZANITA	native	
Arctostaphylos mewukka subsp. truei	ERICACEAE	TRUE'S MANZANITA	native	
Arctostaphylos montaraensis	ERICACEAE	MONTARA MANZANITA	native	
Arctostaphylos montereyensis	ERICACEAE	MONTEREY MANZANITA	native	
Arctostaphylos morroensis	ERICACEAE	MORRO MANZANITA	native	
Arctostaphylos myrtifolia	ERICACEAE	IONE MANZANITA	native	
Arctostaphylos nevadensis	ERICACEAE	MANZANITA	native	
Arctostaphylos nissenana	ERICACEAE	NISSENAN MANZANITA	native	
Arctostaphylos nortensis	ERICACEAE	DEL NORTE MANZANITA	native	
Arctostaphylos nummularia	ERICACEAE	MANZANITA	native	
Arctostaphylos obispoensis	ERICACEAE	BISHOP MANZANITA	native	
Arctostaphylos ohloneana	ERICACEAE		native	
Arctostaphylos osoensis	ERICACEAE	OSO MANZANITA	native	
Arctostaphylos otayensis	ERICACEAE	OTAY MANZANITA	native	
Arctostaphylos pajaroensis	ERICACEAE	PAJARO MANZANITA	native	
Arctostaphylos pallida	ERICACEAE	PALLID MANZANITA	native	
Arctostaphylos parryana	ERICACEAE	MANZANITA	native	
Arctostaphylos parryana subsp. deserticum	ERICACEAE		native	acceptance uncertain
Arctostaphylos parryana subsp. parryana	ERICACEAE		native	acceptance uncertain
Arctostaphylos parryana subsp. tumescens	ERICACEAE		native	acceptance uncertain
Arctostaphylos patula	ERICACEAE	MANZANITA	native	
Arctostaphylos pechoensis	ERICACEAE	PECHO MANZANITA	native	
Arctostaphylos pilosula	ERICACEAE	SANTA MARGARITA MANZANITA	native	
Arctostaphylos pringlei	ERICACEAE	MANZANITA	native	
Arctostaphylos pringlei subsp. drupacea	ERICACEAE	MANZANITA	native	
Arctostaphylos pumila	ERICACEAE	SANDMAT MANZANITA	native	
Arctostaphylos pungens	ERICACEAE	MANZANITA	native	
Arctostaphylos purissima	ERICACEAE	LA PURISIMA MANZANITA	native	
Arctostaphylos rainbowensis	ERICACEAE		native	acceptance uncertain
Arctostaphylos refugioensis	ERICACEAE	REFUGIO MANZANITA	native	
Arctostaphylos regismontana	ERICACEAE	MANZANITA	native	
Arctostaphylos rudis	ERICACEAE	SAND MESA MANZANITA	native	
Arctostaphylos silvicola	ERICACEAE	BONNIE DOON MANZANITA	native	
Arctostaphylos stanfordiana	ERICACEAE	MANZANITA	native	
Arctostaphylos stanfordiana subsp. decumbens	ERICACEAE	RINCON MANZANITA	native	
Arctostaphylos stanfordiana subsp. raichei	ERICACEAE	RAICHE'S MANZANITA	native	
Arctostaphylos stanfordiana subsp. stanfordiana	ERICACEAE	MANZANITA	native	
Arctostaphylos tomentosa	ERICACEAE	MANZANITA	native	
Arctostaphylos tomentosa subsp. bracteosa	ERICACEAE	MANZANITA	native	
Arctostaphylos tomentosa subsp. crinita	ERICACEAE	MANZANITA	native	
Arctostaphylos tomentosa subsp. crustacea	ERICACEAE	MANZANITA	native	
Arctostaphylos tomentosa subsp. daciticola	ERICACEAE	DACITE MANZANITA	native	
Arctostaphylos tomentosa subsp. eastwoodiana	ERICACEAE	EASTWOOD'S MANZANITA	native	
Arctostaphylos tomentosa subsp. insulicola	ERICACEAE	ISLAND LOVING MANZANITA	native	
Arctostaphylos tomentosa subsp. rosei	ERICACEAE	MANZANITA	native	
Arctostaphylos tomentosa subsp. subcordata	ERICACEAE	SUBCORDATE MANZANITA	native	
Arctostaphylos tomentosa subsp. tomentosa	ERICACEAE	MANZANITA	native	
Arctostaphylos uva-ursi	ERICACEAE	BEARBERRY	native	
Arctostaphylos virgata	ERICACEAE	MARIN MANZANITA	native	
Arctostaphylos viridissima	ERICACEAE	MCMINN'S MANZANITA	native	
Arctostaphylos viscida	ERICACEAE	MANZANITA	native	
Arctostaphylos viscida subsp. mariposa	ERICACEAE	MANZANITA	native	
Arctostaphylos viscida subsp. pulchella	ERICACEAE	MANZANITA	native	
Arctostaphylos viscida subsp. viscida	ERICACEAE	MANZANITA	native	
Arctostaphylos wellsii	ERICACEAE	WELLS' MANZANITA	native	
Arctotheca calendula	ASTERACEAE	CAPEWEED	naturalized	
Arctotis venusta	ASTERACEAE		naturalized	
Arenaria lanuginosa	CARYOPHYLLACEAE	SANDWORT	native	
Arenaria lanuginosa var. saxosa	CARYOPHYLLACEAE		native	
Arenaria paludicola	CARYOPHYLLACEAE	MARSH SANDWORT	native	
Arenaria serpyllifolia	CARYOPHYLLACEAE	SANDWORT	naturalized	
Arenaria serpyllifolia var. serpyllifolia	CARYOPHYLLACEAE		naturalized	
Argemone corymbosa	PAPAVERACEAE	PRICKLY POPPY	native	
Argemone munita	PAPAVERACEAE	CHICALOTE	native	
Argyranthemum foeniculaceum	ASTERACEAE		naturalized	
Argyrochosma jonesii	PTERIDACEAE		native	
Argyrochosma limitanea	PTERIDACEAE		native	
Argyrochosma limitanea subsp. limitanea	PTERIDACEAE		native	
Arida arizonica	ASTERACEAE		native	
Arida carnosa	ASTERACEAE		native	
Aristida adscensionis	POACEAE	SIX-WEEKS THREE-AWN	native	
Aristida californica	POACEAE	THREE-AWN	native	
Aristida californica var. californica	POACEAE	CALIFORNIA THREE-AWN	native	
Aristida dichotoma	POACEAE		naturalized	
Aristida divaricata	POACEAE	POVERTY THREE-AWN	native	
Aristida oligantha	POACEAE	OLDFIELD THREE-AWN	native	
Aristida purpurea	POACEAE	THREE-AWN	native	
Aristida purpurea var. fendleriana	POACEAE	FENDLER THREE-AWN	native	
Aristida purpurea var. longiseta	POACEAE	RED THREE-AWN	native	
Aristida purpurea var. nealleyi	POACEAE	NEALLEY THREE-AWN	native	
Aristida purpurea var. parishii	POACEAE	PARISH THREE-AWN	native	
Aristida purpurea var. purpurea	POACEAE	PURPLE THREE-AWN	native	
Aristida purpurea var. wrightii	POACEAE	WRIGHT THREE-AWN	native	
Aristida ternipes	POACEAE	THREE-AWN	native	
Aristida ternipes var. gentilis	POACEAE		native	
Aristocapsa insignis	POLYGONACEAE	INDIAN VALLEY SPINEFLOWER	native	
Aristolochia californica	ARISTOLOCHIACEAE	BIRTHWORT; PIPEVINE	native	
Armeria maritima	PLUMBAGINACEAE	SEA-PINK; THRIFT	native	
Armeria maritima subsp. californica	PLUMBAGINACEAE	SEA-PINK; THRIFT	native	
Armoracia rusticana	BRASSICACEAE	HORSERADISH	naturalized	
Arnica amplexicaulis	ASTERACEAE		native	
Arnica cernua	ASTERACEAE	SERPENTINE ARNICA	native	
Arnica chamissonis	ASTERACEAE		native	
Arnica chamissonis subsp. foliosa	ASTERACEAE		native	
Arnica cordifolia	ASTERACEAE		native	
Arnica dealbata	ASTERACEAE		native	
Arnica discoidea	ASTERACEAE		native	
Arnica fulgens	ASTERACEAE	HILLSIDE ARNICA	native	
Arnica latifolia	ASTERACEAE		native	
Arnica longifolia	ASTERACEAE		native	
Arnica mollis	ASTERACEAE		native	
Arnica nevadensis	ASTERACEAE		native	
Arnica parryi	ASTERACEAE		native	
Arnica sororia	ASTERACEAE	TWIN ARNICA	native	
Arnica spathulata	ASTERACEAE	KLAMATH ARNICA	native	
Arnica tomentella	ASTERACEAE		native	
Arnica venosa	ASTERACEAE	SHASTA COUNTY ARNICA	native	
Arnica viscosa	ASTERACEAE	MOUNT SHASTA ARNICA	native	
Arrhenatherum elatius	POACEAE		naturalized	
Artemisia absinthium	ASTERACEAE		naturalized	acceptance uncertain
Artemisia annua	ASTERACEAE	SWEET ANNIE	naturalized	
Artemisia arbuscula	ASTERACEAE	LOW SAGEBRUSH	native	
Artemisia arbuscula subsp. arbuscula	ASTERACEAE	SAGEBRUSH	native	
Artemisia arbuscula subsp. longiloba	ASTERACEAE		native	
Artemisia arbuscula subsp. thermopola	ASTERACEAE	SAGEBRUSH	native	
Artemisia biennis	ASTERACEAE	SAGEBRUSH	naturalized	
Artemisia bigelovii	ASTERACEAE	BIGELOW SAGEBRUSH	native	
Artemisia borealis	ASTERACEAE		native	
Artemisia californica	ASTERACEAE	CALIFORNIA SAGEBRUSH	native	
Artemisia campestris	ASTERACEAE	SAGEBRUSH	native	
Artemisia campestris var. scouleriana	ASTERACEAE		native	acceptance uncertain
Artemisia cana	ASTERACEAE	SAGEBRUSH	native	
Artemisia cana subsp. bolanderi	ASTERACEAE	SILVER SAGEBRUSH	native	
Artemisia douglasiana	ASTERACEAE	MUGWORT	native	
Artemisia dracunculus	ASTERACEAE	TARRAGON	native	
Artemisia ludoviciana	ASTERACEAE	SILVER WORMWOOD	native	
Artemisia ludoviciana subsp. albula	ASTERACEAE	SAGEBRUSH	native	
Artemisia ludoviciana subsp. candicans	ASTERACEAE	SAGEBRUSH	native	
Artemisia ludoviciana subsp. incompta	ASTERACEAE	SAGEBRUSH	native	
Artemisia ludoviciana subsp. ludoviciana	ASTERACEAE	SAGEBRUSH	native	
Artemisia michauxiana	ASTERACEAE	LEMON SAGEWORT	native	
Artemisia nesiotica	ASTERACEAE	ISLAND SAGEBRUSH	native	
Artemisia norvegica	ASTERACEAE	SAGEBRUSH	native	
Artemisia norvegica subsp. saxatilis	ASTERACEAE	BOREAL SAGEWORT	native	
Artemisia nova	ASTERACEAE	BLACK SAGEBRUSH	native	
Artemisia palmeri	ASTERACEAE	PALMER SAGEWORT	native	
Artemisia pycnocephala	ASTERACEAE	COASTAL SAGEWORT	native	
Artemisia rothrockii	ASTERACEAE	ROTHROCK SAGEBRUSH	native	
Artemisia spiciformis	ASTERACEAE	SNOWFIELD SAGEBRUSH	native	
Artemisia spinescens	ASTERACEAE	BUDSAGE	native	
Artemisia suksdorfii	ASTERACEAE	COASTAL MUGWORT	native	
Artemisia tridentata	ASTERACEAE	SAGEBRUSH	native	
Artemisia tridentata subsp. parishii	ASTERACEAE	SAGEBRUSH	native	
Artemisia tridentata subsp. tridentata	ASTERACEAE	BIG SAGEBRUSH	native	
Artemisia tridentata subsp. vaseyana	ASTERACEAE	MOUNTAIN SAGEBRUSH	native	
Artemisia tridentata subsp. wyomingensis	ASTERACEAE	WYOMING SAGEBRUSH	native	
Artemisia tripartita	ASTERACEAE		native	acceptance uncertain
Arum italicum	ARACEAE		naturalized	
Aruncus dioicus	ROSACEAE	GOAT'S BEARD	native	
Aruncus dioicus var. acuminatus	ROSACEAE		native	
Arundo donax	POACEAE	GIANT REED	naturalized	
Asarum caudatum	ARISTOLOCHIACEAE	WILD-GINGER	native	
Asarum hartwegii	ARISTOLOCHIACEAE	WILD-GINGER	native	
Asarum lemmonii	ARISTOLOCHIACEAE	WILD-GINGER	native	
Asarum marmoratum	ARISTOLOCHIACEAE	MARBLED WILD-GINGER	native	
Asclepias albicans	APOCYNACEAE	WAX MILKWEED; WHITE-STEMMED MILKWEED	native	
Asclepias asperula	APOCYNACEAE	MILKWEED	native	
Asclepias asperula subsp. asperula	APOCYNACEAE	ANTELOPE HORNS	native	
Asclepias californica	APOCYNACEAE	CALIFORNIA MILKWEED; ROUND-HOODED MILKWEED	native	
Asclepias cordifolia	APOCYNACEAE	PURPLE MILKWEED	native	
Asclepias cryptoceras	APOCYNACEAE	HUMBOLDT MOUNTAINS MILKWEED	native	
Asclepias eriocarpa	APOCYNACEAE	INDIAN MILKWEED; KOTOLO MILKWEED	native	
Asclepias erosa	APOCYNACEAE	DESERT MILKWEED	native	
Asclepias fascicularis	APOCYNACEAE	NARROW-LEAF MILKWEED	native	
Asclepias linaria	APOCYNACEAE	MILKWEED	native	
Asclepias nyctaginifolia	APOCYNACEAE	MOJAVE MILKWEED	native	
Asclepias solanoana	APOCYNACEAE	PROSTRATE MILKWEED; SOLANOA	native	
Asclepias speciosa	APOCYNACEAE	GREEK MILKWEED; SHOWY MILKWEED	native	
Asclepias subulata	APOCYNACEAE	AJAMETE; RUSH MILKWEED	native	
Asclepias vestita	APOCYNACEAE	WOOLLY MILKWEED	native	
Asparagus asparagoides	ASPARAGACEAE		naturalized	
Asparagus officinalis	ASPARAGACEAE		naturalized	
Asparagus officinalis subsp. officinalis	ASPARAGACEAE		naturalized	
Asparagus setaceus	ASPARAGACEAE		naturalized	acceptance uncertain
Asperugo procumbens	BORAGINACEAE	MADWORT	naturalized	
Asphodelus fistulosus	ASPHODELACEAE	ASPHODEL	naturalized	
Aspidotis californica	PTERIDACEAE		native	
Aspidotis carlotta-halliae	PTERIDACEAE	CARLOTTA HALL'S LACE FERN	native	
Aspidotis densa	PTERIDACEAE	INDIAN'S DREAM	native	
Asplenium septentrionale	ASPLENIACEAE	NORTHERN SPLEENWORT	native	
Asplenium trichomanes	ASPLENIACEAE	SPLEENWORT	native	
Asplenium trichomanes subsp. trichomanes	ASPLENIACEAE	MAIDENHAIR SPLEENWORT	native	
Asplenium vespertinum	ASPLENIACEAE	SPLEENWORT	native	
Asplenium viride	ASPLENIACEAE		native	
Astragalus accidens	FABACEAE		native	
Astragalus accidens var. hendersonii	FABACEAE		native	
Astragalus acutirostris	FABACEAE		native	
Astragalus agnicidus	FABACEAE	HUMBOLDT MILKVETCH	native	
Astragalus agrestis	FABACEAE	PURPLE LOCO	native	
Astragalus albens	FABACEAE	CUSHENBURY MILKVETCH; SILVERY-WHITE MILKVETCH	native	
Astragalus allochrous	FABACEAE		native	
Astragalus allochrous var. playanus	FABACEAE		native	
Astragalus andersonii	FABACEAE		native	
Astragalus anxius	FABACEAE		native	acceptance uncertain
Astragalus argophyllus	FABACEAE		native	
Astragalus argophyllus var. argophyllus	FABACEAE	SILVERLEAF MILKVETCH	native	
Astragalus aridus	FABACEAE		native	
Astragalus asymmetricus	FABACEAE		native	
Astragalus atratus	FABACEAE		native	
Astragalus atratus var. mensanus	FABACEAE	DARWIN MESA MILKVETCH	native	
Astragalus austiniae	FABACEAE		native	
Astragalus bernardinus	FABACEAE		native	
Astragalus bicristatus	FABACEAE	CRESTED MILKVETCH	native	
Astragalus bolanderi	FABACEAE		native	
Astragalus brauntonii	FABACEAE	BRAUNTON'S MILKVETCH	native	
Astragalus breweri	FABACEAE	BREWER'S MILKVETCH	native	
Astragalus californicus	FABACEAE		native	
Astragalus calycosus	FABACEAE		native	
Astragalus calycosus var. calycosus	FABACEAE	TORREY'S MILKVETCH	native	
Astragalus canadensis	FABACEAE		native	
Astragalus canadensis var. brevidens	FABACEAE		native	
Astragalus casei	FABACEAE		native	
Astragalus cicer	FABACEAE		naturalized	acceptance uncertain
Astragalus cimae	FABACEAE		native	
Astragalus cimae var. cimae	FABACEAE	CIMA MILKVETCH	native	
Astragalus cimae var. sufflatus	FABACEAE		native	
Astragalus claranus	FABACEAE	CLARA HUNT'S MILKVETCH	native	
Astragalus clevelandii	FABACEAE	CLEVELAND'S MILKVETCH	native	
Astragalus coccineus	FABACEAE	SCARLET MILKVETCH	native	
Astragalus congdonii	FABACEAE		native	
Astragalus crotalariae	FABACEAE	SALTON MILKVETCH	native	
Astragalus curtipes	FABACEAE		native	
Astragalus curvicarpus	FABACEAE		native	
Astragalus curvicarpus var. curvicarpus	FABACEAE		native	
Astragalus deanei	FABACEAE	DEAN'S MILKVETCH	native	
Astragalus didymocarpus	FABACEAE	TWO-SEEDED MILKVETCH	native	
Astragalus didymocarpus var. didymocarpus	FABACEAE		native	
Astragalus didymocarpus var. dispermus	FABACEAE		native	
Astragalus didymocarpus var. milesianus	FABACEAE		native	
Astragalus didymocarpus var. obispoensis	FABACEAE		native	
Astragalus douglasii	FABACEAE		native	
Astragalus douglasii var. douglasii	FABACEAE		native	
Astragalus douglasii var. parishii	FABACEAE		native	
Astragalus douglasii var. perstrictus	FABACEAE	JACUMBA MILKVETCH	native	
Astragalus ertterae	FABACEAE	ERTTER'S MILKVETCH; WALKER PASS MILKVETCH	native	
Astragalus filipes	FABACEAE		native	
Astragalus funereus	FABACEAE	BLACK MILKVETCH	native	
Astragalus gambelianus	FABACEAE		native	
Astragalus geyeri	FABACEAE		native	
Astragalus geyeri var. geyeri	FABACEAE	GEYER'S MILKVETCH	native	
Astragalus gibbsii	FABACEAE		native	
Astragalus gilmanii	FABACEAE	GILMAN'S MILKVETCH	native	
Astragalus hornii	FABACEAE		native	
Astragalus hornii var. hornii	FABACEAE		native	
Astragalus insularis	FABACEAE		native	
Astragalus insularis var. harwoodii	FABACEAE	S MILKVETCH; S RATTLEWEED	native	
Astragalus inversus	FABACEAE	SUSANVILLE MILKVETCH	native	
Astragalus inyoensis	FABACEAE	INYO MILKVETCH	native	
Astragalus iodanthus	FABACEAE		native	
Astragalus iodanthus var. diaphanoides	FABACEAE		native	
Astragalus iodanthus var. iodanthus	FABACEAE	HUMBOLDT RIVER MILKVETCH	native	
Astragalus jaegerianus	FABACEAE	LANE MOUNTAIN MILKVETCH	native	
Astragalus johannis-howellii	FABACEAE	LONG VALLEY MILKVETCH	native	
Astragalus kentrophyta	FABACEAE		native	
Astragalus kentrophyta var. danaus	FABACEAE	SWEETWATER MOUNTAINS MILKVETCH	native	
Astragalus kentrophyta var. elatus	FABACEAE	SPINY-LEAVED MILKVETCH	native	
Astragalus kentrophyta var. tegetarius	FABACEAE		native	
Astragalus kentrophyta var. ungulatus	FABACEAE		native	acceptance uncertain
Astragalus layneae	FABACEAE		native	
Astragalus lemmonii	FABACEAE		native	
Astragalus lentiformis	FABACEAE	LENS-POD MILKVETCH	native	
Astragalus lentiginosus	FABACEAE	FRECKLED MILKVETCH	native	
Astragalus lentiginosus var. albifolius	FABACEAE		native	
Astragalus lentiginosus var. antonius	FABACEAE	SAN ANTONIO MILKVETCH	native	
Astragalus lentiginosus var. borreganus	FABACEAE	BORREGO MILKVETCH	native	
Astragalus lentiginosus var. chartaceus	FABACEAE		native	
Astragalus lentiginosus var. coachellae	FABACEAE	COACHELLA VALLEY MILKVETCH	native	
Astragalus lentiginosus var. floribundus	FABACEAE		native	
Astragalus lentiginosus var. fremontii	FABACEAE		native	
Astragalus lentiginosus var. idriensis	FABACEAE		native	
Astragalus lentiginosus var. ineptus	FABACEAE		native	
Astragalus lentiginosus var. kernensis	FABACEAE	KERN PLATEAU MILKVETCH	native	
Astragalus lentiginosus var. lentiginosus	FABACEAE		native	
Astragalus lentiginosus var. micans	FABACEAE	SHINING MILKVETCH	native	
Astragalus lentiginosus var. nigricalycis	FABACEAE		native	
Astragalus lentiginosus var. piscinensis	FABACEAE	FISH SLOUGH MILKVETCH	native	
Astragalus lentiginosus var. salinus	FABACEAE		native	
Astragalus lentiginosus var. semotus	FABACEAE		native	
Astragalus lentiginosus var. sesquimetralis	FABACEAE	SODAVILLE MILKVETCH	native	
Astragalus lentiginosus var. sierrae	FABACEAE	BEAR VALLEY MILKVETCH	native	
Astragalus lentiginosus var. variabilis	FABACEAE		native	
Astragalus leucolobus	FABACEAE	BEAR VALLEY WOOLLYPOD	native	
Astragalus macrodon	FABACEAE	SALINAS MILKVETCH	native	
Astragalus magdalenae	FABACEAE		native	
Astragalus magdalenae var. peirsonii	FABACEAE	PEIRSON'S MILKVETCH	native	
Astragalus malacus	FABACEAE		native	
Astragalus miguelensis	FABACEAE	SAN MIGUEL MILKVETCH	native	
Astragalus minthorniae	FABACEAE		native	
Astragalus minthorniae var. villosus	FABACEAE		native	
Astragalus mohavensis	FABACEAE		native	
Astragalus mohavensis var. mohavensis	FABACEAE		native	
Astragalus monoensis	FABACEAE	MONO MILKVETCH	native	
Astragalus nevinii	FABACEAE	SAN CLEMENTE ISLAND MILKVETCH	native	
Astragalus newberryi	FABACEAE		native	
Astragalus newberryi var. newberryi	FABACEAE		native	
Astragalus nutans	FABACEAE	PROVIDENCE MOUNTAIN MILKVETCH	native	
Astragalus nuttallianus	FABACEAE		native	
Astragalus nuttallianus var. austrinus	FABACEAE		native	
Astragalus nuttallianus var. cedrosensis	FABACEAE		native	
Astragalus nuttallianus var. imperfectus	FABACEAE		native	
Astragalus nuttallii	FABACEAE		native	
Astragalus nuttallii var. nuttallii	FABACEAE		native	
Astragalus nuttallii var. virgatus	FABACEAE		native	
Astragalus obscurus	FABACEAE		native	
Astragalus oocarpus	FABACEAE	SAN DIEGO MILKVETCH	native	
Astragalus oophorus	FABACEAE		native	
Astragalus oophorus var. lavinii	FABACEAE	LAVIN'S MILKVETCH	native	
Astragalus oophorus var. oophorus	FABACEAE		native	
Astragalus oxyphysus	FABACEAE		native	
Astragalus pachypus	FABACEAE		native	
Astragalus pachypus var. jaegeri	FABACEAE	JAEGER'S MILKVETCH	native	
Astragalus pachypus var. pachypus	FABACEAE		native	
Astragalus palmeri	FABACEAE		native	
Astragalus panamintensis	FABACEAE		native	
Astragalus pauperculus	FABACEAE	DEPAUPERATE MILKVETCH	native	
Astragalus platytropis	FABACEAE	BROAD-KEELED MILKVETCH	native	
Astragalus pomonensis	FABACEAE		native	
Astragalus preussii	FABACEAE		native	
Astragalus preussii var. laxiflorus	FABACEAE	LANCASTER MILKVETCH	native	
Astragalus preussii var. preussii	FABACEAE	DESERT MILKVETCH	native	
Astragalus pseudiodanthus	FABACEAE	TONOPAH MILKVETCH	native	
Astragalus pulsiferae	FABACEAE		native	
Astragalus pulsiferae var. coronensis	FABACEAE		native	acceptance uncertain
Astragalus pulsiferae var. pulsiferae	FABACEAE	AMES MILKVETCH	native	
Astragalus pulsiferae var. suksdorfii	FABACEAE	SUKSDORF'S MILKVETCH	native	
Astragalus purshii	FABACEAE	PURSH'S MILKVETCH	native	
Astragalus purshii var. lagopinus	FABACEAE		native	
Astragalus purshii var. lectulus	FABACEAE		native	
Astragalus purshii var. purshii	FABACEAE		native	
Astragalus purshii var. tinctus	FABACEAE		native	
Astragalus pycnostachyus	FABACEAE		native	
Astragalus pycnostachyus var. lanosissimus	FABACEAE	VENTURA MARSH MILKVETCH	native	
Astragalus pycnostachyus var. pycnostachyus	FABACEAE		native	
Astragalus rattanii	FABACEAE		native	
Astragalus rattanii var. jepsonianus	FABACEAE	JEPSON'S MILKVETCH	native	
Astragalus rattanii var. rattanii	FABACEAE	RATTAN'S MILKVETCH	native	
Astragalus ravenii	FABACEAE	RAVEN'S MILKVETCH	native	
Astragalus sabulonum	FABACEAE		native	
Astragalus sepultipes	FABACEAE	BISHOP MILKVETCH	native	
Astragalus serenoi	FABACEAE		native	
Astragalus serenoi var. shockleyi	FABACEAE	NAKED MILKVETCH	native	
Astragalus shevockii	FABACEAE	SHEVOCK'S MILKVETCH	native	
Astragalus subvestitus	FABACEAE	KERN COUNTY MILKVETCH	native	
Astragalus tener	FABACEAE		native	
Astragalus tener var. ferrisiae	FABACEAE	FERRIS' MILKVETCH	native	
Astragalus tener var. tener	FABACEAE	ALKALI MILKVETCH	native	
Astragalus tener var. titi	FABACEAE	COASTAL DUNES MILKVETCH	native	
Astragalus tephrodes	FABACEAE		native	
Astragalus tephrodes var. brachylobus	FABACEAE		native	
Astragalus tidestromii	FABACEAE		native	
Astragalus traskiae	FABACEAE	TRASK'S MILKVETCH	native	
Astragalus tricarinatus	FABACEAE	TRIPLE-RIBBED MILKVETCH	native	
Astragalus trichopodus	FABACEAE		native	
Astragalus trichopodus var. lonchus	FABACEAE		native	
Astragalus trichopodus var. phoxus	FABACEAE		native	
Astragalus trichopodus var. trichopodus	FABACEAE		native	
Astragalus umbraticus	FABACEAE	BALD MOUNTAIN MILKVETCH	native	
Astragalus webberi	FABACEAE	WEBBER'S MILKVETCH	native	
Astragalus whitneyi	FABACEAE		native	
Astragalus whitneyi var. confusus	FABACEAE		native	
Astragalus whitneyi var. lenophyllus	FABACEAE		native	
Astragalus whitneyi var. siskiyouensis	FABACEAE		native	
Astragalus whitneyi var. whitneyi	FABACEAE		native	
Astrolepis cochisensis	PTERIDACEAE	SCALY CLOAK FERN	native	
Astrolepis cochisensis subsp. cochisensis	PTERIDACEAE		native	
Asyneuma prenanthoides	CAMPANULACEAE		native	
Athyrium distentifolium	WOODSIACEAE		native	
Athyrium distentifolium var. americanum	WOODSIACEAE		native	
Athyrium filix-femina	WOODSIACEAE	LADY FERN	native	
Athyrium filix-femina var. cyclosorum	WOODSIACEAE	LADY FERN	native	
Athysanus pusillus	BRASSICACEAE		native	
Atrichoseris platyphylla	ASTERACEAE	GRAVEL-GHOST; TOBACCO-WEED	native	
Atriplex amnicola	CHENOPODIACEAE		naturalized	acceptance uncertain
Atriplex argentea	CHENOPODIACEAE	SILVERSCALE	native	
Atriplex argentea var. argentea	CHENOPODIACEAE	SALTBUSH	native	
Atriplex argentea var. hillmanii	CHENOPODIACEAE	SALTBUSH	native	
Atriplex argentea var. mohavensis	CHENOPODIACEAE	SALTBUSH	native	
Atriplex californica	CHENOPODIACEAE	SALTBUSH	native	
Atriplex canescens	CHENOPODIACEAE	FOURWING SALTBUSH; SHAD-SCALE	native	
Atriplex canescens subsp. canescens	CHENOPODIACEAE	SALTBUSH	native	
Atriplex canescens subsp. linearis	CHENOPODIACEAE	SALTBUSH	native	
Atriplex confertifolia	CHENOPODIACEAE	SALTBUSH	native	
Atriplex cordulata	CHENOPODIACEAE	HEARTSCALE	native	
Atriplex coronata	CHENOPODIACEAE	SALTBUSH	native	
Atriplex coronata var. coronata	CHENOPODIACEAE	CROWNSCALE	native	
Atriplex coronata var. notatior	CHENOPODIACEAE	SAN JACINTO VALLEY CROWNSCALE	native	
Atriplex coulteri	CHENOPODIACEAE	COULTER'S SALTBUSH	native	
Atriplex depressa	CHENOPODIACEAE	BRITTLESCALE	native	
Atriplex dioica	CHENOPODIACEAE		native	acceptance uncertain
Atriplex elegans	CHENOPODIACEAE	WHEELSCALE	native	
Atriplex elegans var. elegans	CHENOPODIACEAE	SALTBUSH	native	
Atriplex elegans var. fasciculata	CHENOPODIACEAE	SALTBUSH	native	
Atriplex erecticaulis	CHENOPODIACEAE		native	acceptance uncertain
Atriplex fruticulosa	CHENOPODIACEAE	SALTBUSH	native	
Atriplex gardneri	CHENOPODIACEAE	SALTBUSH	native	
Atriplex gardneri var. falcata	CHENOPODIACEAE	SALTBUSH	native	
Atriplex heterosperma	CHENOPODIACEAE	SALTBUSH	naturalized	
Atriplex hortensis	CHENOPODIACEAE	GARDEN ORACLE	naturalized	
Atriplex hymenelytra	CHENOPODIACEAE	SALTBUSH	native	
Atriplex joaquinana	CHENOPODIACEAE		native	
Atriplex lentiformis	CHENOPODIACEAE	BIG SALTBUSH	native	
Atriplex lentiformis subsp. lentiformis	CHENOPODIACEAE	SALTBUSH	native	
Atriplex lentiformis subsp. torreyi	CHENOPODIACEAE	SALTBUSH	native	
Atriplex leucophylla	CHENOPODIACEAE	SALTBUSH	native	
Atriplex lindleyi	CHENOPODIACEAE	SALTBUSH	naturalized	
Atriplex minuscula	CHENOPODIACEAE	LESSER SALTBUSH	native	
Atriplex nummularia	CHENOPODIACEAE	SALTBUSH	naturalized	
Atriplex pacifica	CHENOPODIACEAE	SOUTH COAST SALTBUSH	native	
Atriplex parishii	CHENOPODIACEAE	PARISH'S BRITTLESCALE	native	
Atriplex parryi	CHENOPODIACEAE	SALTBUSH	native	
Atriplex patula	CHENOPODIACEAE	SPEAR ORACLE	native	
Atriplex patula var. obtusa	CHENOPODIACEAE	SALTBUSH	native	
Atriplex patula var. patula	CHENOPODIACEAE	SALTBUSH	native	
Atriplex persistens	CHENOPODIACEAE		native	acceptance uncertain
Atriplex phyllostegia	CHENOPODIACEAE	ARROWSCALE	native	
Atriplex polycarpa	CHENOPODIACEAE	SALTBUSH	native	
Atriplex pusilla	CHENOPODIACEAE	SALTBUSH	native	
Atriplex rosea	CHENOPODIACEAE	TUMBLING ORACLE	naturalized	
Atriplex semibaccata	CHENOPODIACEAE	AUSTRALIAN SALTBUSH	naturalized	
Atriplex serenana	CHENOPODIACEAE	BRACTSCALE	native	
Atriplex serenana var. davidsonii	CHENOPODIACEAE	DAVIDSON'S SALTBUSH	native	
Atriplex serenana var. serenana	CHENOPODIACEAE	SALTBUSH	native	
Atriplex spinifera	CHENOPODIACEAE	SALTBUSH	native	
Atriplex suberecta	CHENOPODIACEAE	SALTBUSH	naturalized	
Atriplex triangularis	CHENOPODIACEAE	SPEARSCALE	native	
Atriplex truncata	CHENOPODIACEAE	WEDGESCALE	native	
Atriplex tularensis	CHENOPODIACEAE	BAKERSFIELD SMALLSCALE	native	
Atriplex vallicola	CHENOPODIACEAE	LOST HILLS CROWNSCALE	native	
Atriplex vesicaria	CHENOPODIACEAE		naturalized	acceptance uncertain
Atriplex watsonii	CHENOPODIACEAE	SALTBUSH	native	
Aubrieta deltoidea	BRASSICACEAE		naturalized	
Avena barbata	POACEAE	SLENDER WILD OAT	naturalized	
Avena fatua	POACEAE	WILD OAT	naturalized	
Avena sativa	POACEAE	CULTIVATED OAT	naturalized	
Avena sterilis	POACEAE	OATS	naturalized	
Avena strigosa	POACEAE	OATS	naturalized	
Avicennia marina	ACANTHACEAE	RED MANGROVE	naturalized	
Avicennia marina var. resinifera	Acanthaceae	RED MANGROVE	naturalized	
Axonopus affinis	POACEAE		naturalized	
Ayenia compacta	STERCULIACEAE	AYENIA	native	
Azolla filiculoides	AZOLLACEAE		native	
Azolla microphylla	AZOLLACEAE		native	
Baccharis brachyphylla	ASTERACEAE		native	
Baccharis douglasii	ASTERACEAE	MARSH BACCHARIS	native	
Baccharis emoryi	ASTERACEAE		native	
Baccharis malibuensis	ASTERACEAE		native	acceptance uncertain
Baccharis pilularis	ASTERACEAE	CHAPARRAL BROOM; COYOTE BRUSH	native	
Baccharis plummerae	ASTERACEAE		native	
Baccharis plummerae subsp. glabrata	ASTERACEAE	SAN SIMEON BACCHARIS	native	
Baccharis plummerae subsp. plummerae	ASTERACEAE	PLUMMER'S BACCHARIS	native	
Baccharis salicifolia	ASTERACEAE	MULE FAT; SEEP-WILLOW; WATER-WALLY	native	
Baccharis sarothroides	ASTERACEAE	BROOM BACCHARIS	native	
Baccharis sergiloides	ASTERACEAE	DESERT BACCHARIS; SQUAW WATERWEED	native	
Baccharis vanessae	ASTERACEAE	ENCINITAS BACCHARIS	native	
Bacopa eisenii	PLANTAGINACEAE	WATER-HYSSOP	native	
Bacopa monnieri	PLANTAGINACEAE	WATER-HYSSOP	naturalized	
Bacopa repens	PLANTAGINACEAE	WATER-HYSSOP	naturalized	
Bacopa rotundifolia	PLANTAGINACEAE	WATER-HYSSOP	naturalized	
Bahiopsis laciniata	ASTERACEAE		native	
Bahiopsis parishii	ASTERACEAE		native	
Bahiopsis reticulata	ASTERACEAE		native	
Baileya multiradiata	ASTERACEAE	DESERT-MARIGOLD	native	
Baileya pauciradiata	ASTERACEAE	DESERT-MARIGOLD	native	
Baileya pleniradiata	ASTERACEAE	DESERT-MARIGOLD	native	
Balsamorhiza deltoidea	ASTERACEAE	BALSAM-ROOT	native	
Balsamorhiza hirsuta	ASTERACEAE	BALSAM-ROOT	native	
Balsamorhiza hookeri	ASTERACEAE	BALSAM-ROOT	native	
Balsamorhiza hookeri var. lanata	ASTERACEAE	BALSAM-ROOT	native	acceptance uncertain
Balsamorhiza macrolepis	ASTERACEAE	BALSAM-ROOT	native	
Balsamorhiza macrolepis var. macrolepis	ASTERACEAE	BALSAM-ROOT	native	
Balsamorhiza macrolepis var. platylepis	ASTERACEAE	BALSAM-ROOT	native	
Balsamorhiza sagittata	ASTERACEAE	BALSAM-ROOT	native	
Balsamorhiza sericea	ASTERACEAE	SILKY BALSAM-ROOT	native	
Balsamorhiza serrata	ASTERACEAE	BALSAM-ROOT	native	
Barbarea orthoceras	BRASSICACEAE		native	
Barbarea verna	BRASSICACEAE	EARLY WINTER CRESS; SCURVY GRASS	naturalized	
Barbarea vulgaris	BRASSICACEAE	COMMON WINTER CRESS; YELLOW ROCKET	naturalized	
Bassia hyssopifolia	CHENOPODIACEAE		naturalized	
Batis maritima	BATACEAE	BEACHWORT; SALTWORT	native	
Bebbia juncea	ASTERACEAE	SWEETBUSH	native	
Bebbia juncea var. aspera	ASTERACEAE	SWEETBUSH	native	
Beckmannia syzigachne	POACEAE		native	
Bellardia trixago	SCROPHULARIACEAE		naturalized	
Bellis perennis	ASTERACEAE	ENGLISH DAISY	naturalized	
Benitoa occidentalis	ASTERACEAE		native	
Bensoniella oregona	SAXIFRAGACEAE	BENSONIELLA	native	
Berberis aquifolium	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis aquifolium var. aquifolium	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis aquifolium var. dictyota	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis aquifolium var. repens	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis darwinii	BERBERIDACEAE		naturalized	
Berberis fremontii	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis haematocarpa	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis harrisoniana	BERBERIDACEAE		native	
Berberis higginsiae	BERBERIDACEAE		native	
Berberis nervosa	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis nevinii	BERBERIDACEAE	NEVIN'S BARBERRY	native	
Berberis pinnata	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis pinnata subsp. insularis	BERBERIDACEAE	ISLAND BARBERRY	native	
Berberis pinnata subsp. pinnata	BERBERIDACEAE	BARBERRY; OREGON-GRAPE	native	
Berberis vulgaris	BERBERIDACEAE		naturalized	
Bergerocactus emoryi	CACTACEAE	GOLDEN-SPINED CEREUS	native	
Bergia texana	ELATINACEAE		native	
Bernardia myricifolia	EUPHORBIACEAE		native	
Berteroa incana	BRASSICACEAE		naturalized	acceptance uncertain
Berula erecta	APIACEAE	CUTLEAF WATER-PARSNIP	native	
Beta macrocarpa	CHENOPODIACEAE		naturalized	
Beta vulgaris	CHENOPODIACEAE	BEET	naturalized	
Betula glandulosa	BETULACEAE	RESIN BIRCH	native	
Bidens cernua	ASTERACEAE	BEGGAR'S TICK; SPANISH-NEEDLES; STICKTIGHT	native	
Bidens cernua var. cernua	ASTERACEAE	NODDING BUR-MARIGOLD	native	
Bidens frondosa	ASTERACEAE	STICKTIGHT	native	
Bidens laevis	ASTERACEAE	BUR-MARIGOLD	native	
Bidens pilosa	ASTERACEAE	BEGGAR'S TICK; SPANISH-NEEDLES; STICKTIGHT	naturalized	
Bidens pilosa var. pilosa	ASTERACEAE	COMMON BEGGAR-TICKS; SPANISH-NEEDLES	naturalized	
Bidens tripartita	ASTERACEAE	BEGGAR'S TICK; SPANISH-NEEDLES; STICKTIGHT	naturalized	
Bidens vulgata	ASTERACEAE	BEGGAR'S TICK; SPANISH-NEEDLES; STICKTIGHT	naturalized	
Billardiera heterophylla	PITTOSPORACEAE		naturalized	
Bistorta bistortoides	POLYGONACEAE		native	
Bituminaria bituminosa	FABACEAE		naturalized	
Blechnum spicant	BLECHNACEAE	DEER FERN	native	
Blennosperma bakeri	ASTERACEAE	BAKER'S BLENNOSPERMA	native	
Blennosperma nanum	ASTERACEAE		native	
Blennosperma nanum var. nanum	ASTERACEAE		native	
Blennosperma nanum var. robustum	ASTERACEAE	POINT REYES BLENNOSPERMA	native	
Blepharidachne kingii	POACEAE	KING'S EYELASH GRASS	native	
Blepharipappus scaber	ASTERACEAE		native	
Blepharizonia laxa	ASTERACEAE		native	
Blepharizonia plumosa	ASTERACEAE	BIG TARWEED	native	
Bloomeria crocea	THEMIDACEAE	COMMON GOLDENSTAR	native	
Bloomeria humilis	THEMIDACEAE	DWARF GOLDENSTAR	native	
Boechera hirshbergiae	BRASSICACEAE		native	
Boechera yorkii	BRASSICACEAE		native	acceptance uncertain
Boehmeria cylindrica	URTICACEAE		naturalized	
Boerhavia coccinea	NYCTAGINACEAE	SCARLET SPIDERLING	native	
Boerhavia coulteri	NYCTAGINACEAE	SPIDERLING	native	
Boerhavia coulteri var. palmeri	NYCTAGINACEAE		native	
Boerhavia diffusa	NYCTAGINACEAE		naturalized	
Boerhavia triquetra	NYCTAGINACEAE	SPIDERLING	native	
Boerhavia triquetra var. intermedia	NYCTAGINACEAE		native	
Boerhavia wrightii	NYCTAGINACEAE	SPIDERLING	native	
Bolandra californica	SAXIFRAGACEAE	SIERRA BOLANDRA	native	
Bolboschoenus glaucus	CYPERACEAE		native	
Bolboschoenus maritimus	CYPERACEAE		native	
Bolboschoenus maritimus subsp. paludosus	CYPERACEAE		native	
Bolboschoenus robustus	CYPERACEAE		native	
Borago officinalis	BORAGINACEAE		naturalized	
Boschniakia hookeri	OROBANCHACEAE	SMALL GROUND-CONE	native	
Boschniakia strobilacea	OROBANCHACEAE	CALIFORNIA GROUND-CONE	native	
Bothriochloa barbinodis	POACEAE	CANE BLUESTEM	native	
Bothriochloa exaristata	POACEAE		native	acceptance uncertain
Bothriochloa ischaemum	POACEAE		naturalized	
Bothriochloa laguroides	POACEAE		naturalized	
Bothriochloa laguroides subsp. torreyana	POACEAE		naturalized	
Botrychium ascendens	OPHIOGLOSSACEAE	UPSWEPT MOONWORT	native	
Botrychium crenulatum	OPHIOGLOSSACEAE	SCALLOPED MOONWORT	native	
Botrychium lineare	OPHIOGLOSSACEAE		native	
Botrychium lunaria	OPHIOGLOSSACEAE	MOONWORT	native	
Botrychium minganense	OPHIOGLOSSACEAE	MINGAN MOONWORT	native	
Botrychium montanum	OPHIOGLOSSACEAE	WESTERN GOBLIN	native	
Botrychium multifidum	OPHIOGLOSSACEAE	LEATHER GRAPE-FERN	native	
Botrychium pinnatum	OPHIOGLOSSACEAE	NORTHWESTERN MOONWORT	native	
Botrychium simplex	OPHIOGLOSSACEAE	YOSEMITE MOONWORT	native	
Botrychium simplex var. compositum	OPHIOGLOSSACEAE		native	
Botrychium virginianum	OPHIOGLOSSACEAE		native	
Bouteloua aristidoides	POACEAE	GRAMA	native	
Bouteloua aristidoides var. aristidoides	POACEAE	NEEDLE GRAMA	native	
Bouteloua barbata	POACEAE	GRAMA	native	
Bouteloua barbata var. barbata	POACEAE	SIX WEEKS GRAMA	native	
Bouteloua curtipendula	POACEAE	SIDE-OATS GRAMA	native	
Bouteloua eriopoda	POACEAE	BLACK GRAMA	native	
Bouteloua gracilis	POACEAE	BLUE GRAMA	native	
Bouteloua trifida	POACEAE	RED GRAMA	native	
Bowlesia incana	APIACEAE		native	
Boykinia major	SAXIFRAGACEAE		native	
Boykinia occidentalis	SAXIFRAGACEAE		native	
Boykinia rotundifolia	SAXIFRAGACEAE	ROUND-LEAVED BOYKINIA	native	
Brachypodium distachyon	POACEAE		naturalized	
Brachypodium pinnatum	POACEAE		naturalized	
Brachypodium sylvaticum	POACEAE		naturalized	acceptance uncertain
Brandegea bigelovii	CUCURBITACEAE		native	
Brasenia schreberi	CABOMBACEAE	WATERSHIELD	native	
Brassica fruticulosa	BRASSICACEAE		naturalized	
Brassica juncea	BRASSICACEAE	INDIAN MUSTARD	naturalized	
Brassica napus	BRASSICACEAE	RAPESEED; SWEDE RAPE	naturalized	
Brassica nigra	BRASSICACEAE	BLACK MUSTARD	naturalized	
Brassica oleracea	BRASSICACEAE		naturalized	
Brassica rapa	BRASSICACEAE	FIELD MUSTARD; TURNIP	naturalized	
Brassica tournefortii	BRASSICACEAE	MUSTARD; TURNIP	naturalized	
Brickellia atractyloides	ASTERACEAE	BRICKELLBUSH	native	
Brickellia atractyloides var. arguta	ASTERACEAE		native	
Brickellia atractyloides var. atractyloides	ASTERACEAE		native	
Brickellia atractyloides var. odontolepis	ASTERACEAE		native	
Brickellia californica	ASTERACEAE	BRICKELLBUSH	native	
Brickellia desertorum	ASTERACEAE	BRICKELLBUSH	native	
Brickellia frutescens	ASTERACEAE	BRICKELLBUSH	native	
Brickellia grandiflora	ASTERACEAE	BRICKELLBUSH	native	
Brickellia greenei	ASTERACEAE	BRICKELLBUSH	native	
Brickellia incana	ASTERACEAE	BRICKELLBUSH	native	
Brickellia knappiana	ASTERACEAE	KNAPP'S BRICKELLIA	native	
Brickellia longifolia	ASTERACEAE	BRICKELLBUSH	native	
Brickellia longifolia var. multiflora	ASTERACEAE		native	
Brickellia microphylla	ASTERACEAE	BRICKELLBUSH	native	
Brickellia microphylla var. microphylla	ASTERACEAE		native	
Brickellia nevinii	ASTERACEAE	NEVIN'S BRICKELLBUSH	native	
Brickellia oblongifolia	ASTERACEAE	BRICKELLBUSH	native	
Brickellia oblongifolia var. linifolia	ASTERACEAE	BRICKELLBUSH	native	
Briza maxima	POACEAE	QUAKING GRASS	naturalized	
Briza minor	POACEAE	QUAKING GRASS	naturalized	
Brodiaea appendiculata	THEMIDACEAE		native	
Brodiaea californica	THEMIDACEAE		native	
Brodiaea californica var. californica	THEMIDACEAE		native	
Brodiaea californica var. leptandra	THEMIDACEAE		native	
Brodiaea coronaria	THEMIDACEAE		native	
Brodiaea coronaria subsp. coronaria	THEMIDACEAE		native	
Brodiaea coronaria subsp. rosea	THEMIDACEAE	INDIAN VALLEY BRODIAEA	native	
Brodiaea elegans	THEMIDACEAE	HARVEST BRODIAEA	native	
Brodiaea elegans subsp. elegans	THEMIDACEAE		native	
Brodiaea elegans subsp. hooveri	THEMIDACEAE		native	
Brodiaea filifolia	THEMIDACEAE	THREAD-LEAVED BRODIAEA	native	
Brodiaea insignis	THEMIDACEAE	KAWEAH BRODIAEA	native	
Brodiaea jolonensis	THEMIDACEAE		native	
Brodiaea kinkiensis	THEMIDACEAE	SAN CLEMENTE ISLAND BRODIAEA	native	
Brodiaea minor	THEMIDACEAE	DWARF BRODIAEA	native	
Brodiaea orcuttii	THEMIDACEAE	ORCUTT'S BRODIAEA	native	
Brodiaea pallida	THEMIDACEAE	CHINESE CAMP BRODIAEA	native	
Brodiaea purdyi	THEMIDACEAE		native	
Brodiaea santarosae	THEMIDACEAE		native	
Brodiaea stellaris	THEMIDACEAE		native	
Brodiaea terrestris	THEMIDACEAE		native	
Brodiaea terrestris subsp. kernensis	THEMIDACEAE		native	
Brodiaea terrestris subsp. terrestris	THEMIDACEAE		native	
Bromus alopecuros	POACEAE	BROME	naturalized	
Bromus anomalus	POACEAE	BROME	native	
Bromus arenarius	POACEAE	BROME	naturalized	
Bromus arizonicus	POACEAE	BROME	native	
Bromus berteroanus	POACEAE		naturalized	
Bromus briziformis	POACEAE	RATTLESNAKE BROME	naturalized	
Bromus carinatus	POACEAE	CALIFORNIA BROME	native	
Bromus carinatus var. carinatus	POACEAE	BROME	native	
Bromus carinatus var. maritimus	POACEAE	BROME	native	
Bromus catharticus	POACEAE	RESCUE GRASS	naturalized	
Bromus ciliatus	POACEAE	FRINGED BROME	native	
Bromus diandrus	POACEAE	RIPGUT GRASS	naturalized	
Bromus grandis	POACEAE	BROME	native	
Bromus hordeaceus	POACEAE	BROME	naturalized	
Bromus inermis	POACEAE	BROME	naturalized	
Bromus inermis subsp. inermis	POACEAE	SMOOTH BROME	naturalized	
Bromus japonicus	POACEAE	BROME	naturalized	
Bromus laevipes	POACEAE	BROME	native	
Bromus madritensis	POACEAE	FOXTAIL CHESS	naturalized	
Bromus madritensis subsp. madritensis	POACEAE	BROME	naturalized	
Bromus madritensis subsp. rubens	POACEAE	BROME	naturalized	
Bromus marginatus	POACEAE		native	
Bromus orcuttianus	POACEAE	BROME	native	
Bromus richardsonii	POACEAE		native	acceptance uncertain
Bromus secalinus	POACEAE	BROME	naturalized	
Bromus stamineus	POACEAE	BROME	naturalized	
Bromus sterilis	POACEAE	POVERTY BROME	naturalized	
Bromus suksdorfii	POACEAE	BROME	native	
Bromus tectorum	POACEAE	CHEAT GRASS; DOWNY BROME	naturalized	
Bromus trinii	POACEAE	CHILEAN CHESS	naturalized	
Bromus vulgaris	POACEAE	BROME	native	
Buddleja davidii	BUDDLEJACEAE	BUTTERFLY BUSH; SUMMER LILAC	naturalized	
Buddleja saligna	BUDDLEJACEAE	BUTTERFLY BUSH	naturalized	
Buddleja utahensis	BUDDLEJACEAE	PANAMINT BUTTERFLY BUSH	native	
Bulbine semibarbata	ASPHODELACEAE		naturalized	
Bulbostylis capillaris	CYPERACEAE		native	
Bupleurum lancifolium	APIACEAE		naturalized	
Bursera microphylla	BURSERACEAE	ELEPHANT TREE	native	
Cabomba caroliniana	CABOMBACEAE		naturalized	
Cacaliopsis nardosmia	ASTERACEAE		native	
Caesalpinia gilliesii	FABACEAE	BIRD-OF-PARADISE	naturalized	
Caesalpinia mexicana	FABACEAE		naturalized	acceptance uncertain
Caesalpinia pulcherrima	FABACEAE		naturalized	acceptance uncertain
Caesalpinia spinosa	FABACEAE	TARA	naturalized	
Cakile edentula	BRASSICACEAE	SEA ROCKET	naturalized	
Cakile maritima	BRASSICACEAE	SEA ROCKET	naturalized	
Calamagrostis bolanderi	POACEAE	BOLANDER'S REED GRASS	native	
Calamagrostis breweri	POACEAE	REED GRASS	native	
Calamagrostis canadensis	POACEAE	REED GRASS	native	
Calamagrostis foliosa	POACEAE	LEAFY REED GRASS	native	
Calamagrostis koelerioides	POACEAE	REED GRASS	native	
Calamagrostis muiriana	POACEAE		native	acceptance uncertain
Calamagrostis nutkaensis	POACEAE	REED GRASS	native	
Calamagrostis ophitidis	POACEAE	SERPENTINE REED GRASS	native	
Calamagrostis purpurascens	POACEAE	REED GRASS	native	
Calamagrostis rubescens	POACEAE	PINE GRASS	native	
Calamagrostis stricta	POACEAE	REED GRASS	native	
Calamagrostis stricta subsp. inexpansa	POACEAE	REED GRASS	native	
Calamagrostis stricta subsp. stricta	POACEAE	REED GRASS	native	
Calandrinia breweri	MONTIACEAE		native	
Calendula arvensis	ASTERACEAE	FIELD-MARIGOLD	naturalized	
Calendula officinalis	ASTERACEAE	POT-MARIGOLD	naturalized	
California macrophylla	GERANIACEAE		native	
Calliandra eriophylla	FABACEAE	FAIRYDUSTER	native	
Callitriche fassettii			native	acceptance uncertain
Callitriche hermaphroditica	CALLITRICHACEAE	WATER-STARWORT	native	
Callitriche heterophylla	CALLITRICHACEAE	WATER-STARWORT	native	
Callitriche heterophylla var. bolanderi	CALLITRICHACEAE	WATER-STARWORT	native	
Callitriche heterophylla var. heterophylla	CALLITRICHACEAE	WATER-STARWORT	native	
Callitriche marginata	CALLITRICHACEAE	WATER-STARWORT	native	
Callitriche stagnalis	CALLITRICHACEAE	WATER-STARWORT	naturalized	
Callitriche trochlearis	CALLITRICHACEAE	WATER-STARWORT	native	
Callitriche verna	CALLITRICHACEAE	WATER-STARWORT	native	
Callitropsis nootkatensis	CUPRESSACEAE		native	
Calocedrus decurrens	CUPRESSACEAE	INCENSE CEDAR	native	
Calochortus albus	LILIACEAE	FAIRY LANTERN; WHITE GLOBE LILY	native	
Calochortus amabilis	LILIACEAE	DIOGENES' LANTERN	native	
Calochortus amoenus	LILIACEAE		native	
Calochortus argillosus	LILIACEAE	CLAY MARIPOSA LILY	native	
Calochortus bruneaunis	LILIACEAE		native	
Calochortus catalinae	LILIACEAE	CATALINA MARIPOSA LILY	native	
Calochortus clavatus	LILIACEAE		native	
Calochortus clavatus var. avius	LILIACEAE	PLEASANT VALLEY MARIPOSA LILY	native	
Calochortus clavatus var. clavatus	LILIACEAE	CLUB-HAIRED MARIPOSA LILY	native	
Calochortus clavatus var. gracilis	LILIACEAE	SLENDER MARIPOSA LILY	native	
Calochortus clavatus var. pallidus	LILIACEAE		native	
Calochortus clavatus var. recurvifolius	LILIACEAE	ARROYO DE LA CRUZ MARIPOSA LILY	native	
Calochortus coeruleus	LILIACEAE	BEAVERTAIL-GRASS	native	
Calochortus concolor	LILIACEAE		native	
Calochortus dunnii	LILIACEAE	DUNN'S MARIPOSA LILY	native	
Calochortus elegans	LILIACEAE	CAT'S EAR	native	
Calochortus excavatus	LILIACEAE	INYO COUNTY STAR-TULIP	native	
Calochortus flexuosus	LILIACEAE		native	
Calochortus greenei	LILIACEAE	GREENE'S MARIPOSA LILY	native	
Calochortus invenustus	LILIACEAE		native	
Calochortus kennedyi	LILIACEAE		native	
Calochortus kennedyi var. kennedyi	LILIACEAE		native	
Calochortus kennedyi var. munzii	LILIACEAE		native	
Calochortus leichtlinii	LILIACEAE		native	
Calochortus longebarbatus	LILIACEAE		native	
Calochortus longebarbatus var. longebarbatus	LILIACEAE	LONG-HAIRED STAR-TULIP	native	
Calochortus luteus	LILIACEAE		native	
Calochortus macrocarpus	LILIACEAE		native	
Calochortus minimus	LILIACEAE		native	
Calochortus monophyllus	LILIACEAE		native	
Calochortus nudus	LILIACEAE		native	
Calochortus obispoensis	LILIACEAE	SAN LUIS MARIPOSA LILY	native	
Calochortus palmeri	LILIACEAE		native	
Calochortus palmeri var. munzii	LILIACEAE	MUNZ'S MARIPOSA LILY	native	
Calochortus palmeri var. palmeri	LILIACEAE	PALMER'S MARIPOSA LILY	native	
Calochortus panamintensis	LILIACEAE	PANAMINT MARIPOSA LILY	native	
Calochortus persistens	LILIACEAE	SISKIYOU MARIPOSA LILY	native	
Calochortus plummerae	LILIACEAE	PLUMMER'S MARIPOSA LILY	native	
Calochortus pulchellus	LILIACEAE	MOUNT DIABLO FAIRY LANTERN	native	
Calochortus raichei	LILIACEAE	CEDARS FAIRY LANTERN	native	
Calochortus simulans	LILIACEAE	SAN LUIS OBISPO MARIPOSA LILY	native	
Calochortus splendens	LILIACEAE		native	
Calochortus striatus	LILIACEAE	ALKALI MARIPOSA LILY	native	
Calochortus superbus	LILIACEAE		native	
Calochortus syntrophus	LILIACEAE		native	acceptance uncertain
Calochortus tiburonensis	LILIACEAE	TIBURON MARIPOSA LILY	native	
Calochortus tolmiei	LILIACEAE	PUSSY EARS	native	
Calochortus umbellatus	LILIACEAE	OAKLAND STAR-TULIP	native	
Calochortus uniflorus	LILIACEAE	LARGE-FLOWERED STAR-TULIP	native	
Calochortus venustus	LILIACEAE		native	
Calochortus vestae	LILIACEAE		native	
Calochortus weedii	LILIACEAE		native	
Calochortus weedii var. intermedius	LILIACEAE		native	
Calochortus weedii var. vestus	LILIACEAE		native	
Calochortus weedii var. weedii	LILIACEAE		native	
Calochortus westonii	LILIACEAE	SHIRLEY MEADOWS STAR-TULIP	native	
Caltha leptosepala	RANUNCULACEAE	MARSH MARIGOLD	native	
Caltha palustris	RANUNCULACEAE		naturalized	
Calycadenia fremontii	ASTERACEAE		native	
Calycadenia hooveri	ASTERACEAE	HOOVER'S CALYCADENIA	native	
Calycadenia micrantha	ASTERACEAE		native	
Calycadenia mollis	ASTERACEAE		native	
Calycadenia multiglandulosa	ASTERACEAE		native	
Calycadenia oppositifolia	ASTERACEAE	BUTTE COUNTY CALYCADENIA	native	
Calycadenia pauciflora	ASTERACEAE		native	
Calycadenia spicata	ASTERACEAE		native	
Calycadenia truncata	ASTERACEAE	ROSIN WEED	native	
Calycadenia truncata subsp. microcephala	ASTERACEAE		native	acceptance uncertain
Calycadenia villosa	ASTERACEAE	DWARF CALYCADENIA	native	
Calycanthus occidentalis	CALYCANTHACEAE	SPICEBUSH; SWEET-SHRUB	native	
Calycoseris parryi	ASTERACEAE		native	
Calycoseris wrightii	ASTERACEAE		native	
Calypso bulbosa	ORCHIDACEAE	FAIRY SLIPPER	native	
Calypso bulbosa var. occidentalis	ORCHIDACEAE		native	
Calyptridium monandrum	MONTIACEAE	PUSSYPAWS	native	
Calyptridium monospermum	MONTIACEAE	PUSSYPAWS	native	
Calyptridium parryi	MONTIACEAE	PUSSYPAWS	native	
Calyptridium parryi var. arizonicum	MONTIACEAE		native	
Calyptridium parryi var. hesseae	MONTIACEAE	SANTA CRUZ MOUNTAINS PUSSYPAWS	native	
Calyptridium parryi var. nevadense	MONTIACEAE	PUSSYPAWS	native	
Calyptridium parryi var. parryi	MONTIACEAE	PUSSYPAWS	native	
Calyptridium pulchellum	MONTIACEAE	MARIPOSA PUSSYPAWS	native	
Calyptridium pygmaeum	MONTIACEAE	PUSSYPAWS	native	
Calyptridium quadripetalum	MONTIACEAE	FOUR-PETALED PUSSYPAWS	native	
Calyptridium roseum	MONTIACEAE	PUSSYPAWS	native	
Calyptridium umbellatum	MONTIACEAE	PUSSYPAWS	native	
Calystegia atriplicifolia	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia atriplicifolia subsp. buttensis	CONVOLVULACEAE	BUTTE COUNTY MORNING-GLORY	native	
Calystegia collina	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia collina subsp. collina	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia collina subsp. oxyphylla	CONVOLVULACEAE	MOUNT SAINT HELENA MORNING-GLORY	native	
Calystegia collina subsp. tridactylosa	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia collina subsp. venusta	CONVOLVULACEAE	SOUTH COAST RANGE MORNING-GLORY	native	
Calystegia longipes	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia macrostegia	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia macrostegia subsp. amplissima	CONVOLVULACEAE	ISLAND MORNING-GLORY	native	
Calystegia macrostegia subsp. arida	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia macrostegia subsp. cyclostegia	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia macrostegia subsp. intermedia	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia macrostegia subsp. macrostegia	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia macrostegia subsp. tenuifolia	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia malacophylla	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia malacophylla subsp. malacophylla	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia malacophylla subsp. pedicellata	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia occidentalis	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia occidentalis subsp. fulcrata	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia occidentalis subsp. occidentalis	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia peirsonii	CONVOLVULACEAE	PEIRSON'S MORNING-GLORY	native	
Calystegia purpurata	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia purpurata subsp. purpurata	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia purpurata subsp. saxicola	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia sepium	CONVOLVULACEAE	HEDGE BINDWEED	native	
Calystegia sepium subsp. binghamiae	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia sepium subsp. limnophila	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia silvatica	CONVOLVULACEAE		naturalized	
Calystegia silvatica subsp. disjuncta	CONVOLVULACEAE		naturalized	
Calystegia soldanella	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia stebbinsii	CONVOLVULACEAE	STEBBINS' MORNING-GLORY	native	
Calystegia subacaulis	CONVOLVULACEAE	MORNING-GLORY	native	
Calystegia subacaulis subsp. episcopalis	CONVOLVULACEAE	SAN LUIS OBISPO COUNTY MORNING-GLORY	native	
Calystegia subacaulis subsp. subacaulis	CONVOLVULACEAE	MORNING-GLORY	native	
Camassia leichtlinii	AGAVACEAE		native	
Camassia leichtlinii subsp. suksdorfii	AGAVACEAE		native	
Camassia quamash	AGAVACEAE	CAMAS	native	
Camassia quamash subsp. breviflora	AGAVACEAE	CAMAS	native	
Camelina microcarpa	BRASSICACEAE	FALSE FLAX	naturalized	
Camissonia andina	ONAGRACEAE	SUN CUP	native	
Camissonia arenaria	ONAGRACEAE	SUN CUP	native	
Camissonia benitensis	ONAGRACEAE	SAN BENITO EVENING PRIMROSE	native	
Camissonia bistorta	ONAGRACEAE	CALIFORNIA SUN CUP	native	
Camissonia boothii	ONAGRACEAE	SUN CUP	native	
Camissonia boothii subsp. alyssoides	ONAGRACEAE	PINE CREEK EVENING PRIMROSE	native	
Camissonia boothii subsp. boothii	ONAGRACEAE	BOOTH'S EVENING PRIMROSE	native	
Camissonia boothii subsp. condensata	ONAGRACEAE	SUN CUP	native	
Camissonia boothii subsp. decorticans	ONAGRACEAE	SHREDDING EVENING PRIMROSE	native	
Camissonia boothii subsp. desertorum	ONAGRACEAE	SUN CUP	native	
Camissonia boothii subsp. intermedia	ONAGRACEAE	SUN CUP	native	
Camissonia brevipes	ONAGRACEAE	SUN CUP	native	
Camissonia brevipes subsp. arizonica	ONAGRACEAE	SUN CUP	native	
Camissonia brevipes subsp. brevipes	ONAGRACEAE	SUN CUP	native	
Camissonia brevipes subsp. pallidula	ONAGRACEAE	SUN CUP	native	
Camissonia californica	ONAGRACEAE	SUN CUP	native	
Camissonia campestris	ONAGRACEAE	MOJAVE SUN CUP	native	
Camissonia campestris subsp. campestris	ONAGRACEAE	SUN CUP	native	
Camissonia campestris subsp. obispoensis	ONAGRACEAE	SUN CUP	native	
Camissonia cardiophylla	ONAGRACEAE	SUN CUP	native	
Camissonia cardiophylla subsp. cardiophylla	ONAGRACEAE	SUN CUP	native	
Camissonia cardiophylla subsp. robusta	ONAGRACEAE	SUN CUP	native	
Camissonia chamaenerioides	ONAGRACEAE	SUN CUP	native	
Camissonia cheiranthifolia	ONAGRACEAE	BEACH EVENING PRIMROSE	native	
Camissonia cheiranthifolia subsp. cheiranthifolia	ONAGRACEAE	SUN CUP	native	
Camissonia cheiranthifolia subsp. suffruticosa	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. aurantiaca	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. claviformis	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. cruciformis	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. funerea	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. integrior	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. lancifolia	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. peirsonii	ONAGRACEAE	SUN CUP	native	
Camissonia claviformis subsp. yumae	ONAGRACEAE	SUN CUP	native	
Camissonia confusa	ONAGRACEAE	SUN CUP	native	
Camissonia contorta	ONAGRACEAE	SUN CUP	native	
Camissonia graciliflora	ONAGRACEAE	HILL SUN CUP	native	
Camissonia guadalupensis	ONAGRACEAE	SUN CUP	native	
Camissonia guadalupensis subsp. clementina	ONAGRACEAE	SAN CLEMENTE ISLAND EVENING PRIMROSE	native	
Camissonia hardhamiae	ONAGRACEAE	HARDHAM'S EVENING PRIMROSE	native	
Camissonia heterochroma	ONAGRACEAE	SHOCKLEY'S EVENING PRIMROSE	native	
Camissonia hirtella	ONAGRACEAE	SUN CUP	native	
Camissonia ignota	ONAGRACEAE	SUN CUP	native	
Camissonia integrifolia	ONAGRACEAE	KERN RIVER EVENING PRIMROSE	native	
Camissonia intermedia	ONAGRACEAE	SUN CUP	native	
Camissonia kernensis	ONAGRACEAE	SUN CUP	native	
Camissonia kernensis subsp. gilmanii	ONAGRACEAE	SUN CUP	native	
Camissonia kernensis subsp. kernensis	ONAGRACEAE	KERN COUNTY EVENING PRIMROSE	native	
Camissonia lacustris	ONAGRACEAE	SUN CUP	native	
Camissonia lewisii	ONAGRACEAE	LEWIS' EVENING PRIMROSE	native	
Camissonia luciae	ONAGRACEAE	SUN CUP	native	
Camissonia micrantha	ONAGRACEAE	SUN CUP	native	
Camissonia minor	ONAGRACEAE	NELSON'S EVENING PRIMROSE	native	
Camissonia munzii	ONAGRACEAE	SUN CUP	native	
Camissonia ovata	ONAGRACEAE	SUN CUP	native	
Camissonia pallida	ONAGRACEAE	SUN CUP	native	
Camissonia pallida subsp. hallii	ONAGRACEAE	SUN CUP	native	
Camissonia pallida subsp. pallida	ONAGRACEAE	SUN CUP	native	
Camissonia palmeri	ONAGRACEAE	SUN CUP	native	
Camissonia parvula	ONAGRACEAE	SUN CUP	native	
Camissonia pterosperma	ONAGRACEAE	SUN CUP	native	
Camissonia pubens	ONAGRACEAE	SUN CUP	native	
Camissonia pusilla	ONAGRACEAE	SUN CUP	native	
Camissonia refracta	ONAGRACEAE	SUN CUP	native	
Camissonia robusta	ONAGRACEAE	SUN CUP	native	
Camissonia sierrae	ONAGRACEAE	SUN CUP	native	
Camissonia sierrae subsp. alticola	ONAGRACEAE	MONO HOT SPRINGS EVENING PRIMROSE	native	
Camissonia sierrae subsp. sierrae	ONAGRACEAE	SUN CUP	native	
Camissonia strigulosa	ONAGRACEAE	SUN CUP	native	
Camissonia subacaulis	ONAGRACEAE	SUN CUP	native	
Camissonia tanacetifolia	ONAGRACEAE	SUN CUP	native	
Camissonia tanacetifolia subsp. quadriperforata	ONAGRACEAE	SIERRA VALLEY EVENING PRIMROSE	native	
Camissonia tanacetifolia subsp. tanacetifolia	ONAGRACEAE	SUN CUP	native	
Camissonia walkeri	ONAGRACEAE	SUN CUP	native	
Camissonia walkeri subsp. tortilis	ONAGRACEAE	SUN CUP	native	
Campanula angustiflora	CAMPANULACEAE	HAREBELL	native	
Campanula californica	CAMPANULACEAE	SWAMP HAREBELL	native	
Campanula exigua	CAMPANULACEAE	CHAPARRAL HAREBELL	native	
Campanula griffinii	CAMPANULACEAE	HAREBELL	native	
Campanula rotundifolia	CAMPANULACEAE	HAREBELL	native	
Campanula scabrella	CAMPANULACEAE	ROUGH HAREBELL	native	
Campanula scouleri	CAMPANULACEAE	SCOULER'S HAREBELL	native	
Campanula sharsmithiae	CAMPANULACEAE	SHARSMITH'S HAREBELL	native	
Campanula shetleri	CAMPANULACEAE	CASTLE CRAGS HAREBELL	native	
Campanula wilkinsiana	CAMPANULACEAE	WILKINS' HAREBELL	native	
Canbya candida	PAPAVERACEAE		native	
Cannabis sativa	CANNABACEAE	ETC.; GRASS; HEMP; MARIJUANA; POT	naturalized	
Capsella bursa-pastoris	BRASSICACEAE	SHEPHERD'S PURSE	naturalized	
Cardamine angulata	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine bellidifolia	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine bellidifolia var. pachyphylla	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine breweri	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine breweri var. breweri	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine breweri var. orbicularis	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine californica	BRASSICACEAE	MILK MAIDS; TOOTH WORT	native	
Cardamine californica var. californica	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine californica var. cardiophylla	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine californica var. cuneata	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine californica var. integrifolia	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine californica var. sinuata	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine cordifolia	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine cordifolia var. lyallii	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine flexuosa	BRASSICACEAE		naturalized	acceptance uncertain
Cardamine hirsuta	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	naturalized	
Cardamine nuttallii	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine nuttallii var. covilleana	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine nuttallii var. dissecta	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine nuttallii var. gemmata	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine nuttallii var. nuttallii	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine occidentalis	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine oligosperma	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine pachystigma	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine pachystigma var. dissectifolia	BRASSICACEAE	DISSECTED-LEAF TOOTHWORT	native	
Cardamine pachystigma var. pachystigma	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardamine pensylvanica	BRASSICACEAE	BITTER-CRESS; TOOTHWORT	native	
Cardionema ramosissimum	CARYOPHYLLACEAE		native	
Carduus acanthoides	ASTERACEAE	PLUMELESS THISTLE	naturalized	
Carduus nutans	ASTERACEAE	MUSK THISTLE	naturalized	
Carduus pycnocephalus	ASTERACEAE	ITALIAN THISTLE	naturalized	
Carduus tenuiflorus	ASTERACEAE	PLUMELESS THISTLE	naturalized	
Carex abrupta	CYPERACEAE	ABRUPT-BEAKED SEDGE	native	
Carex albida	CYPERACEAE	WHITE SEDGE	native	
Carex albonigra	CYPERACEAE	SEDGE	native	
Carex alma	CYPERACEAE	SEDGE	native	
Carex amplectens	CYPERACEAE	SEDGE	native	
Carex amplifolia	CYPERACEAE	SEDGE	native	
Carex angustata	CYPERACEAE	SEDGE	native	
Carex aquatilis	CYPERACEAE	SEDGE	native	
Carex aquatilis var. aquatilis	CYPERACEAE	SEDGE	native	
Carex aquatilis var. dives	CYPERACEAE	SEDGE	native	
Carex arcta	CYPERACEAE	SEDGE	native	
Carex atherodes	CYPERACEAE	SEDGE	native	
Carex athrostachya	CYPERACEAE	SEDGE	native	
Carex aurea	CYPERACEAE	SEDGE	native	
Carex barbarae	CYPERACEAE	SEDGE	native	
Carex bella	CYPERACEAE		native	acceptance uncertain
Carex bolanderi	CYPERACEAE	SEDGE	native	
Carex brainerdii	CYPERACEAE	SEDGE	native	
Carex brevicaulis	CYPERACEAE	SEDGE	native	
Carex breweri	CYPERACEAE	SEDGE	native	
Carex breweri var. breweri	CYPERACEAE	SEDGE	native	
Carex buxbaumii	CYPERACEAE	SEDGE	native	
Carex californica	CYPERACEAE	CALIFORNIA SEDGE	native	
Carex canescens	CYPERACEAE	SEDGE	native	
Carex capitata	CYPERACEAE	SEDGE	native	
Carex comosa	CYPERACEAE	SEDGE	native	
Carex concinnoides	CYPERACEAE	SEDGE	native	
Carex congdonii	CYPERACEAE	CONGDON'S SEDGE	native	
Carex cusickii	CYPERACEAE	SEDGE	native	
Carex davyi	CYPERACEAE	DAVY'S SEDGE	native	
Carex densa	CYPERACEAE	SEDGE	native	
Carex deweyana	CYPERACEAE	SEDGE	native	
Carex deweyana subsp. leptopoda	CYPERACEAE	SEDGE	native	
Carex diandra	CYPERACEAE	SEDGE	native	
Carex disperma	CYPERACEAE	SEDGE	native	
Carex douglasii	CYPERACEAE	SEDGE	native	
Carex dudleyi	CYPERACEAE	SEDGE	native	
Carex echinata	CYPERACEAE	SEDGE	native	
Carex echinata subsp. echinata	CYPERACEAE	SEDGE	native	
Carex echinata subsp. phyllomanica	CYPERACEAE	SEDGE	native	
Carex eleocharis	CYPERACEAE	SPIKERUSH SEDGE	native	acceptance uncertain
Carex feta	CYPERACEAE	SEDGE	native	
Carex filifolia	CYPERACEAE	SEDGE	native	
Carex filifolia var. erostrata	CYPERACEAE	SEDGE	native	
Carex filifolia var. filifolia	CYPERACEAE	SEDGE	native	
Carex fissuricola	CYPERACEAE	SEDGE	native	
Carex fracta	CYPERACEAE	SEDGE	native	
Carex garberi	CYPERACEAE	SEDGE	native	
Carex geyeri	CYPERACEAE	ELK SEDGE; GEYER'S SEDGE	native	
Carex globosa	CYPERACEAE	SEDGE	native	
Carex gracilior	CYPERACEAE	SEDGE	native	
Carex gynodynama	CYPERACEAE	SEDGE	native	
Carex halliana	CYPERACEAE	HALL'S SEDGE	native	
Carex harfordii	CYPERACEAE	SEDGE	native	
Carex hassei	CYPERACEAE	SEDGE	native	
Carex haydeniana	CYPERACEAE	SEDGE	native	
Carex helleri	CYPERACEAE	SEDGE	native	
Carex hendersonii	CYPERACEAE	SEDGE	native	
Carex heteroneura	CYPERACEAE	SEDGE	native	
Carex heteroneura var. epapillosa	CYPERACEAE	SEDGE	native	
Carex heteroneura var. heteroneura	CYPERACEAE	SEDGE	native	
Carex hirtissima	CYPERACEAE	SEDGE	native	
Carex hoodii	CYPERACEAE	SEDGE	native	
Carex hystericina	CYPERACEAE	BOTTLEBRUSH SEDGE	native	
Carex illota	CYPERACEAE	SEDGE	native	
Carex incurviformis	CYPERACEAE	SEDGE	native	
Carex incurviformis var. danaensis	CYPERACEAE	SEDGE	native	
Carex infirminervia	CYPERACEAE		native	acceptance uncertain
Carex inops	CYPERACEAE	SEDGE	native	
Carex inops subsp. inops	CYPERACEAE	SEDGE	native	
Carex integra	CYPERACEAE	SEDGE	native	
Carex interior	CYPERACEAE	SEDGE	native	
Carex jonesii	CYPERACEAE	SEDGE	native	
Carex klamathensis	CYPERACEAE		native	acceptance uncertain
Carex laeviculmis	CYPERACEAE	SEDGE	native	
Carex lasiocarpa	CYPERACEAE	SLENDER SEDGE	native	
Carex leavenworthii	CYPERACEAE	SEDGE	naturalized	
Carex lemmonii	CYPERACEAE	SEDGE	native	
Carex lenticularis	CYPERACEAE	SEDGE	native	
Carex lenticularis var. impressa	CYPERACEAE	SEDGE	native	
Carex lenticularis var. limnophila	CYPERACEAE	SEDGE	native	
Carex lenticularis var. lipocarpa	CYPERACEAE	SEDGE	native	
Carex leporinella	CYPERACEAE	SEDGE	native	
Carex leptalea	CYPERACEAE	FLACCID SEDGE	native	
Carex limosa	CYPERACEAE	SEDGE	native	
Carex livida	CYPERACEAE	LIVID SEDGE; PALE SEDGE	native	
Carex luzulifolia	CYPERACEAE	SEDGE	native	
Carex luzulina	CYPERACEAE	SEDGE	native	
Carex luzulina var. ablata	CYPERACEAE	SEDGE	native	
Carex luzulina var. luzulina	CYPERACEAE	SEDGE	native	
Carex lyngbyei	CYPERACEAE	SEDGE	native	
Carex mariposana	CYPERACEAE	SEDGE	native	
Carex mendocinensis	CYPERACEAE	SEDGE	native	
Carex mertensii	CYPERACEAE	SEDGE	native	
Carex mesochorea	CYPERACEAE		naturalized	acceptance uncertain
Carex microptera	CYPERACEAE	SEDGE	native	
Carex molesta	CYPERACEAE	SEDGE	naturalized	
Carex multicaulis	CYPERACEAE	SEDGE	native	
Carex multicostata	CYPERACEAE	SEDGE	native	
Carex nebrascensis	CYPERACEAE	SEDGE	native	
Carex nervina	CYPERACEAE	SEDGE	native	
Carex neurophora	CYPERACEAE	SEDGE	native	
Carex nigricans	CYPERACEAE	SEDGE	native	
Carex nudata	CYPERACEAE	SEDGE	native	
Carex obispoensis	CYPERACEAE	SAN LUIS SEDGE	native	
Carex obnupta	CYPERACEAE	SEDGE	native	
Carex occidentalis	CYPERACEAE	SEDGE	native	
Carex ovalis	CYPERACEAE	SEDGE	native	
Carex pachystachya	CYPERACEAE	SEDGE	native	
Carex pansa	CYPERACEAE	SEDGE	native	
Carex parryana	CYPERACEAE	SEDGE	native	
Carex pellita	CYPERACEAE	WOOLLY SEDGE	native	
Carex pendula	CYPERACEAE		naturalized	acceptance uncertain
Carex petasata	CYPERACEAE	LIDDON'S SEDGE	native	
Carex phaeocephala	CYPERACEAE	SEDGE	native	
Carex praeceptorum	CYPERACEAE	SEDGE	native	
Carex praegracilis	CYPERACEAE	SEDGE	native	
Carex praticola	CYPERACEAE	MEADOW SEDGE	native	
Carex preslii	CYPERACEAE	SEDGE	native	
Carex proposita	CYPERACEAE	SEDGE	native	
Carex raynoldsii	CYPERACEAE	SEDGE	native	
Carex retroflexa	CYPERACEAE	SEDGE	naturalized	
Carex retroflexa var. texensis	CYPERACEAE	SEDGE	naturalized	acceptance uncertain
Carex rossii	CYPERACEAE	SEDGE	native	
Carex saliniformis	CYPERACEAE	SEDGE	native	
Carex sartwelliana	CYPERACEAE	SEDGE	native	
Carex schottii	CYPERACEAE	SEDGE	native	
Carex scirpoidea	CYPERACEAE	SEDGE	native	
Carex scirpoidea var. pseudoscirpoidea	CYPERACEAE	SEDGE	native	
Carex scoparia	CYPERACEAE	POINTED BROOM-SEDGE	native	
Carex scopulorum	CYPERACEAE	SEDGE	native	
Carex scopulorum var. bracteosa	CYPERACEAE	SEDGE	native	
Carex senta	CYPERACEAE	SEDGE	native	
Carex serpenticola	CYPERACEAE		native	acceptance uncertain
Carex serratodens	CYPERACEAE	SEDGE	native	
Carex sheldonii	CYPERACEAE	SHELDON'S SEDGE	native	
Carex simulata	CYPERACEAE	SEDGE	native	
Carex specifica	CYPERACEAE	SEDGE	native	
Carex spectabilis	CYPERACEAE	SEDGE	native	
Carex spissa	CYPERACEAE	SEDGE	native	
Carex stipata	CYPERACEAE	SEDGE	native	
Carex stipata var. stipata	CYPERACEAE	SEDGE	native	
Carex straminiformis	CYPERACEAE	MOUNT SHASTA SEDGE	native	
Carex subbracteata	CYPERACEAE	SEDGE	native	
Carex subfusca	CYPERACEAE	SEDGE	native	
Carex subnigricans	CYPERACEAE	SEDGE	native	
Carex tahoensis	CYPERACEAE	SEDGE	native	
Carex tiogana	CYPERACEAE	TIOGA SEDGE	native	
Carex tompkinsii	CYPERACEAE	TOMPKINS' SEDGE	native	
Carex triquetra	CYPERACEAE	SEDGE	native	
Carex tumulicola	CYPERACEAE	SEDGE	native	
Carex unilateralis	CYPERACEAE	SEDGE	native	
Carex utriculata	CYPERACEAE	SEDGE	native	
Carex vallicola	CYPERACEAE	SEDGE	native	
Carex vernacula	CYPERACEAE	SEDGE	native	
Carex vesicaria	CYPERACEAE	SEDGE	native	
Carex vesicaria var. major	CYPERACEAE	SEDGE	native	acceptance uncertain
Carex vesicaria var. vesicaria	CYPERACEAE	SEDGE	native	acceptance uncertain
Carex viridula	CYPERACEAE	SEDGE	native	
Carex viridula var. viridula	CYPERACEAE	SEDGE	native	
Carex vulpinoidea	CYPERACEAE	FOX SEDGE	native	
Carex whitneyi	CYPERACEAE	SEDGE	native	
Carlowrightia arizonica	ACANTHACEAE	ARIZONA CARLOWRIGHTIA	native	
Carlquistia muirii	ASTERACEAE		native	
Carnegiea gigantea	CACTACEAE	SAGUARO	native	
Carpenteria californica	PHILADELPHACEAE	TREE-ANEMONE	native	
Carpobrotus chilensis	AIZOACEAE	SEA FIG	naturalized	
Carpobrotus edulis	AIZOACEAE	FIG-MARIGOLD	naturalized	
Carthamus baeticus	ASTERACEAE	SMOOTH DISTAFF THISTLE	naturalized	
Carthamus lanatus	ASTERACEAE	WOOLLY DISTAFF THISTLE	naturalized	
Carthamus leucocaulos	ASTERACEAE	WHITESTEM DISTAFF THISTLE	naturalized	
Carthamus tinctorius	ASTERACEAE	SAFFLOWER	naturalized	
Carya illinoinensis	JUGLANDACEAE		naturalized	
Cassiope mertensiana	ERICACEAE	WHITE HEATHER	native	
Castela emoryi	SIMAROUBACEAE	CRUCIFIXION THORN	native	
Castilleja affinis	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja affinis subsp. affinis	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja affinis subsp. litoralis	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja affinis subsp. neglecta	SCROPHULARIACEAE	TIBURON INDIAN PAINTBRUSH	native	
Castilleja ambigua	SCROPHULARIACEAE	JOHNNY-NIP	native	
Castilleja ambigua subsp. ambigua	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja ambigua subsp. humboldtiensis	SCROPHULARIACEAE	HUMBOLDT BAY OWL'S-CLOVER	native	
Castilleja ambigua subsp. insalutata	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja angustifolia	SCROPHULARIACEAE	DESERT INDIAN PAINTBRUSH	native	
Castilleja applegatei	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja applegatei subsp. disticha	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja applegatei subsp. martinii	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja applegatei subsp. pallida	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja applegatei subsp. pinetorum	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja arachnoidea	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja attenuata	SCROPHULARIACEAE	VALLEY TASSELS	native	
Castilleja brevistyla	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja campestris	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja campestris subsp. campestris	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja campestris subsp. succulenta	SCROPHULARIACEAE	SUCCULENT OWL'S-CLOVER	native	
Castilleja cinerea	SCROPHULARIACEAE	ASH-GRAY INDIAN PAINTBRUSH	native	
Castilleja densiflora	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja densiflora subsp. densiflora	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja densiflora subsp. gracilis	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja densiflora subsp. obispoensis	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja exserta	SCROPHULARIACEAE	PURPLE OWL'S-CLOVER	native	
Castilleja exserta subsp. exserta	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja exserta subsp. latifolia	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja exserta subsp. venusta	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja foliolosa	SCROPHULARIACEAE	WOOLLY INDIAN PAINTBRUSH	native	
Castilleja grisea	SCROPHULARIACEAE	SAN CLEMENTE ISLAND INDIAN PAINTBRUSH	native	
Castilleja hispida	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja hispida subsp. brevilobata	SCROPHULARIACEAE	SHORT-LOBED INDIAN PAINTBRUSH	native	
Castilleja lacera	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja lanata	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja lanata subsp. hololeuca	SCROPHULARIACEAE	WHITE-FELTED INDIAN PAINTBRUSH	native	
Castilleja lasiorhyncha	SCROPHULARIACEAE	SAN BERNARDINO MOUNTAINS OWL'S-CLOVER	native	
Castilleja latifolia	SCROPHULARIACEAE	MONTEREY INDIAN PAINTBRUSH	native	
Castilleja lemmonii	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja linariifolia	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja lineariloba	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja mendocinensis	SCROPHULARIACEAE	MENDOCINO COAST INDIAN PAINTBRUSH	native	
Castilleja miniata	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja miniata subsp. elata	SCROPHULARIACEAE	SISKIYOU INDIAN PAINTBRUSH	native	
Castilleja miniata subsp. miniata	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja minor	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja minor subsp. minor	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja minor subsp. spiralis	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja mollis	SCROPHULARIACEAE	SOFT-LEAVED INDIAN PAINTBRUSH	native	
Castilleja nana	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja parviflora	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja pilosa	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja plagiotoma	SCROPHULARIACEAE	MOJAVE INDIAN PAINTBRUSH	native	
Castilleja praeterita	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja pruinosa	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja rubicundula	SCROPHULARIACEAE	CREAM SACS	native	
Castilleja rubicundula subsp. lithospermoides	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja rubicundula subsp. rubicundula	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja schizotricha	SCROPHULARIACEAE	SPLIT-HAIR INDIAN PAINTBRUSH	native	
Castilleja subinclusa	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja subinclusa subsp. franciscana	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja subinclusa subsp. subinclusa	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja tenuis	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Castilleja wightii	SCROPHULARIACEAE	INDIAN PAINTBRUSH; OWL'S-CLOVER	native	
Catalpa bignonioides	BIGNONIACEAE		naturalized	
Catalpa speciosa	BIGNONIACEAE		naturalized	
Caulanthus amplexicaulis	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus amplexicaulis var. amplexicaulis	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus amplexicaulis var. barbarae	BRASSICACEAE	SANTA BARBARA JEWELFLOWER	native	
Caulanthus anceps	BRASSICACEAE		native	
Caulanthus californicus	BRASSICACEAE	CALIFORNIA JEWELFLOWER	native	
Caulanthus cooperi	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus coulteri	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus coulteri var. coulteri	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus crassicaulis	BRASSICACEAE	THICK-STEM WILD CABBAGE	native	
Caulanthus crassicaulis var. crassicaulis	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus crassicaulis var. glaber	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus glaucus	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus hallii	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus heterophyllus	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus heterophyllus var. heterophyllus	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus inflatus	BRASSICACEAE	DESERT CANDLE	native	
Caulanthus lemmonii	BRASSICACEAE		native	
Caulanthus major	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus major var. major	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus major var. nevadensis	BRASSICACEAE	JEWELFLOWER	native	
Caulanthus pilosus	BRASSICACEAE	CHOCOLATE DROPS; HAIRY WILD CABBAGE	native	
Caulanthus simulans	BRASSICACEAE	PAYSON'S JEWELFLOWER	native	
Caulostramina jaegeri	BRASSICACEAE	JAEGER'S CAULOSTRAMINA	native	
Ceanothus arboreus	RHAMNACEAE	FELTLEAF CEANOTHUS	native	
Ceanothus confusus	RHAMNACEAE	RINCON RIDGE CEANOTHUS	native	
Ceanothus cordulatus	RHAMNACEAE	MOUNTAIN WHITETHORN	native	
Ceanothus crassifolius	RHAMNACEAE	HOARYLEAF CEANOTHUS	native	
Ceanothus cuneatus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus cuneatus var. cuneatus	RHAMNACEAE	BUCK BRUSH	native	
Ceanothus cuneatus var. fascicularis	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus cuneatus var. rigidus	RHAMNACEAE	MONTEREY CEANOTHUS	native	
Ceanothus cyaneus	RHAMNACEAE	LAKESIDE CEANOTHUS	native	
Ceanothus dentatus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus divergens	RHAMNACEAE	CALISTOGA CEANOTHUS	native	
Ceanothus diversifolius	RHAMNACEAE	PINE MAT	native	
Ceanothus ferrisiae	RHAMNACEAE	COYOTE CEANOTHUS	native	
Ceanothus foliosus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus foliosus var. foliosus	RHAMNACEAE	WAVYLEAF CEANOTHUS	native	
Ceanothus foliosus var. medius	RHAMNACEAE	LA CUESTA CEANOTHUS	native	
Ceanothus foliosus var. vineatus	RHAMNACEAE	VINE HILL CEANOTHUS	native	
Ceanothus fresnensis	RHAMNACEAE	FRESNO MAT	native	
Ceanothus gloriosus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus gloriosus var. exaltatus	RHAMNACEAE	GLORY BRUSH	native	
Ceanothus gloriosus var. gloriosus	RHAMNACEAE	GLORY MAT; POINT REYES CEANOTHUS	native	
Ceanothus gloriosus var. porrectus	RHAMNACEAE	MOUNT VISION CEANOTHUS	native	
Ceanothus greggii	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus greggii var. perplexans	RHAMNACEAE	CUPLEAF CEANOTHUS	native	
Ceanothus greggii var. vestitus	RHAMNACEAE	MOJAVE CEANOTHUS	native	
Ceanothus griseus	RHAMNACEAE	CARMEL CEANOTHUS	native	
Ceanothus hearstiorum	RHAMNACEAE	HEARST'S CEANOTHUS	native	
Ceanothus impressus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus incanus	RHAMNACEAE	COAST WHITETHORN	native	
Ceanothus integerrimus	RHAMNACEAE	DEER BRUSH	native	
Ceanothus jepsonii	RHAMNACEAE	MUSK BRUSH	native	
Ceanothus jepsonii var. albiflorus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus jepsonii var. jepsonii	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus lemmonii	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus leucodermis	RHAMNACEAE	CHAPARRAL WHITETHORN	native	
Ceanothus maritimus	RHAMNACEAE	MARITIME CEANOTHUS	native	
Ceanothus masonii	RHAMNACEAE	MASON'S CEANOTHUS	native	
Ceanothus megacarpus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus megacarpus var. insularis	RHAMNACEAE	ISLAND CEANOTHUS	native	
Ceanothus megacarpus var. megacarpus	RHAMNACEAE	BIGPOD CEANOTHUS	native	
Ceanothus oliganthus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus oliganthus var. oliganthus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus oliganthus var. sorediatus	RHAMNACEAE	JIM BRUSH	native	
Ceanothus ophiochilus	RHAMNACEAE	VAIL LAKE CEANOTHUS	native	
Ceanothus palmeri	RHAMNACEAE	PALMER CEANOTHUS	native	
Ceanothus papillosus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus papillosus var. papillosus	RHAMNACEAE	WARTLEAF CEANOTHUS	native	
Ceanothus papillosus var. roweanus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus parryi	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus parvifolius	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus pinetorum	RHAMNACEAE	KERN CEANOTHUS	native	
Ceanothus prostratus	RHAMNACEAE	MAHALA MAT	native	
Ceanothus prostratus var. occidentalis	RHAMNACEAE		native	
Ceanothus prostratus var. prostratus	RHAMNACEAE		native	
Ceanothus pumilus	RHAMNACEAE	SISKIYOU MAT	native	
Ceanothus purpureus	RHAMNACEAE	HOLLYLEAF CEANOTHUS	native	
Ceanothus roderickii	RHAMNACEAE	PINE HILL CEANOTHUS	native	
Ceanothus sanguineus	RHAMNACEAE	REDSTEM CEANOTHUS	native	
Ceanothus sonomensis	RHAMNACEAE	SONOMA CEANOTHUS	native	
Ceanothus spinosus	RHAMNACEAE	GREENBARK CEANOTHUS	native	
Ceanothus thyrsiflorus	RHAMNACEAE	BLUE BLOSSOM	native	
Ceanothus tomentosus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus velutinus	RHAMNACEAE	CALIFORNIA-LILAC	native	
Ceanothus velutinus var. laevigatus	RHAMNACEAE		native	
Ceanothus velutinus var. velutinus	RHAMNACEAE	TOBACCO BRUSH	native	
Ceanothus verrucosus	RHAMNACEAE	WART-STEMMED CEANOTHUS	native	
Cedronella canariensis	LAMIACEAE		naturalized	acceptance uncertain
Celtis reticulata	CANNABACEAE	NET-LEAF HACKBERRY	native	
Cenchrus ciliaris	POACEAE	SANDBUR	naturalized	
Cenchrus echinatus	POACEAE	SOUTHERN SANDBUR	naturalized	
Cenchrus incertus	POACEAE	COAST SANDBUR	naturalized	
Cenchrus longispinus	POACEAE	MAT SANDBUR	naturalized	
Centaurea benedicta	ASTERACEAE		naturalized	
Centaurea biebersteinii	ASTERACEAE		naturalized	acceptance uncertain
Centaurea calcitrapa	ASTERACEAE	PURPLE STAR-THISTLE	naturalized	
Centaurea cyanus	ASTERACEAE	BACHELOR'S BUTTON; CORNFLOWER	naturalized	
Centaurea diffusa	ASTERACEAE	DIFFUSE KNAPWEED	naturalized	
Centaurea diluta	ASTERACEAE	KNAPWEED; STAR-THISTLE	naturalized	
Centaurea iberica	ASTERACEAE	IBERIAN STAR-THISTLE	naturalized	
Centaurea melitensis	ASTERACEAE	TOCALOTE	naturalized	
Centaurea nigra	ASTERACEAE	KNAPWEED; STAR-THISTLE	naturalized	
Centaurea solstitialis	ASTERACEAE	YELLOW STAR-THISTLE	naturalized	
Centaurea stoebe	ASTERACEAE		naturalized	
Centaurea stoebe subsp. micranthos	ASTERACEAE		naturalized	
Centaurea sulphurea	ASTERACEAE	SICILIAN STAR-THISTLE	naturalized	
Centaurea virgata	ASTERACEAE		naturalized	
Centaurea virgata subsp. squarrosa	ASTERACEAE		naturalized	
Centaurium erythraea	GENTIANACEAE	CENTAURY	naturalized	
Centaurium tenuiflorum	GENTIANACEAE		naturalized	
Centranthus ruber	VALERIANACEAE	RED VALERIAN	naturalized	
Centromadia fitchii	ASTERACEAE		native	
Centromadia parryi	ASTERACEAE		native	
Centromadia parryi subsp. australis	ASTERACEAE		native	
Centromadia parryi subsp. congdonii	ASTERACEAE		native	
Centromadia parryi subsp. parryi	ASTERACEAE		native	
Centromadia parryi subsp. rudis	ASTERACEAE		native	
Centromadia pungens	ASTERACEAE		native	
Centromadia pungens subsp. laevis	ASTERACEAE		native	
Centromadia pungens subsp. maritima	ASTERACEAE		native	
Centromadia pungens subsp. pungens	ASTERACEAE		native	
Centromadia pungens subsp. septentrionalis	ASTERACEAE		native	
Centrostegia thurberi	POLYGONACEAE	THURBER'S SPINEFLOWER	native	
Cephalanthera austiniae	ORCHIDACEAE	PHANTOM ORCHID	native	
Cephalanthus occidentalis	RUBIACEAE	BUTTON BUSH	native	
Cephalanthus occidentalis var. californicus	RUBIACEAE	CALIFORNIA BUTTON WILLOW	native	
Cerastium arvense	CARYOPHYLLACEAE	FIELD CHICKWEED	native	
Cerastium arvense subsp. strictum	CARYOPHYLLACEAE		native	
Cerastium beeringianum	CARYOPHYLLACEAE	MOUSE-EAR CHICKWEED	native	
Cerastium dichotomum	CARYOPHYLLACEAE	MOUSE-EAR CHICKWEED	naturalized	
Cerastium diffusum	CARYOPHYLLACEAE		naturalized	
Cerastium fontanum	CARYOPHYLLACEAE	MOUSE-EAR CHICKWEED	naturalized	
Cerastium fontanum subsp. vulgare	CARYOPHYLLACEAE	MOUSE-EAR CHICKWEED	naturalized	
Cerastium glomeratum	CARYOPHYLLACEAE	MOUSE-EAR CHICKWEED	naturalized	
Cerastium viride	CARYOPHYLLACEAE		native	
Ceratonia siliqua	FABACEAE		naturalized	
Ceratophyllum demersum	CERATOPHYLLACEAE	HORNWORT	native	
Cercis occidentalis	FABACEAE	WESTERN REDBUD	native	
Cercocarpus betuloides	ROSACEAE	MOUNTAIN-MAHOGANY	native	
Cercocarpus betuloides var. betuloides	ROSACEAE	BIRCH-LEAF MOUNTAIN-MAHOGANY	native	
Cercocarpus betuloides var. blancheae	ROSACEAE	ISLAND MOUNTAIN-MAHOGANY	native	
Cercocarpus betuloides var. macrourus	ROSACEAE	MOUNTAIN-MAHOGANY	native	
Cercocarpus intricatus	ROSACEAE	MOUNTAIN-MAHOGANY	native	
Cercocarpus ledifolius	ROSACEAE	CURL-LEAF MOUNTAIN-MAHOGANY	native	
Cercocarpus ledifolius var. intermontanus	ROSACEAE	MOUNTAIN-MAHOGANY	native	
Cercocarpus ledifolius var. ledifolius	ROSACEAE	MOUNTAIN-MAHOGANY	native	
Cercocarpus minutiflorus	ROSACEAE	MOUNTAIN-MAHOGANY	native	
Cercocarpus traskiae	ROSACEAE	CATALINA ISLAND MOUNTAIN-MAHOGANY	native	
Cestrum nocturnum	SOLANACEAE		naturalized	
Chaenactis alpigena	ASTERACEAE	PINCUSHION	native	
Chaenactis artemisiifolia	ASTERACEAE	PINCUSHION	native	
Chaenactis carphoclinia	ASTERACEAE	PEBBLE PINCUSHION	native	
Chaenactis carphoclinia var. carphoclinia	ASTERACEAE	PINCUSHION	native	
Chaenactis carphoclinia var. peirsonii	ASTERACEAE	PEIRSON PINCUSHION	native	
Chaenactis douglasii	ASTERACEAE	PINCUSHION	native	
Chaenactis douglasii var. alpina	ASTERACEAE	ALPINE DUSTY MAIDENS	native	
Chaenactis douglasii var. douglasii	ASTERACEAE	DUSTY MAIDENS	native	
Chaenactis fremontii	ASTERACEAE	DESERT PINCUSHION	native	
Chaenactis glabriuscula	ASTERACEAE	YELLOW PINCUSHION	native	
Chaenactis glabriuscula var. glabriuscula	ASTERACEAE	PINCUSHION	native	
Chaenactis glabriuscula var. heterocarpha	ASTERACEAE	PINCUSHION	native	
Chaenactis glabriuscula var. lanosa	ASTERACEAE	PINCUSHION	native	
Chaenactis glabriuscula var. megacephala	ASTERACEAE	PINCUSHION	native	
Chaenactis glabriuscula var. orcuttiana	ASTERACEAE	PINCUSHION	native	
Chaenactis macrantha	ASTERACEAE	MOJAVE PINCUSHION	native	
Chaenactis nevadensis	ASTERACEAE	PINCUSHION	native	
Chaenactis parishii	ASTERACEAE	PARISH'S CHAENACTIS	native	
Chaenactis santolinoides	ASTERACEAE	PINCUSHION	native	
Chaenactis stevioides	ASTERACEAE	DESERT PINCUSHION	native	
Chaenactis suffrutescens	ASTERACEAE	SHASTA CHAENACTIS	native	
Chaenactis xantiana	ASTERACEAE	PINCUSHION	native	
Chaetadelpha wheeleri	ASTERACEAE		native	
Chaetopappa ericoides	ASTERACEAE		native	
Chamaebatia australis	ROSACEAE		native	
Chamaebatia foliolosa	ROSACEAE	MOUNTAIN MISERY	native	
Chamaebatiaria millefolium	ROSACEAE	DESERT SWEET; FERN BUSH	native	
Chamaecyparis lawsoniana	CUPRESSACEAE		native	
Chamaecytisus proliferus	FABACEAE		naturalized	
Chamaemelum fuscatum	ASTERACEAE		naturalized	
Chamaemelum nobile	ASTERACEAE	CHAMOMILE; RUSSIAN CHAMOMILE	naturalized	
Chamaesaracha coronopus	SOLANACEAE		native	
Chamaesaracha nana	SOLANACEAE		native	
Chamaesyce abramsiana	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce albomarginata	EUPHORBIACEAE	RATTLESNAKE WEED	native	
Chamaesyce arizonica	EUPHORBIACEAE	ARIZONA SPURGE	native	
Chamaesyce fendleri	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce glyptosperma	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce hooveri	EUPHORBIACEAE	HOOVER'S SPURGE	native	
Chamaesyce maculata	EUPHORBIACEAE	SPOTTED SPURGE	naturalized	
Chamaesyce melanadenia	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce micromera	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce nutans	EUPHORBIACEAE	PROSTRATE SPURGE	naturalized	
Chamaesyce ocellata	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce ocellata subsp. arenicola	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce ocellata subsp. ocellata	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce ocellata subsp. rattanii	EUPHORBIACEAE	STONY CREEK SPURGE	native	
Chamaesyce parishii	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce parryi	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce pediculifera	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce platysperma	EUPHORBIACEAE	FLAT SEEDED SPURGE	native	
Chamaesyce polycarpa	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce prostrata	EUPHORBIACEAE	PROSTRATE SPURGE	naturalized	
Chamaesyce revoluta	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce serpens	EUPHORBIACEAE	PROSTRATE SPURGE	naturalized	
Chamaesyce serpyllifolia	EUPHORBIACEAE	THYME-LEAFED SPURGE	native	
Chamaesyce serpyllifolia subsp. hirtula	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce serpyllifolia subsp. serpyllifolia	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce setiloba	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamaesyce vallis-mortae	EUPHORBIACEAE	PROSTRATE SPURGE	native	
Chamerion angustifolium	ONAGRACEAE		native	
Chamerion angustifolium subsp. circumvagum	ONAGRACEAE		native	
Chamerion latifolium	ONAGRACEAE		native	
Chamomilla suaveolens	ASTERACEAE	PINEAPPLE WEED; RAYLESS CHAMOMILE	naturalized	
Chasmanthe floribunda	IRIDACEAE		naturalized	
Cheilanthes clevelandii	PTERIDACEAE		native	
Cheilanthes cooperae	PTERIDACEAE		native	
Cheilanthes covillei	PTERIDACEAE		native	
Cheilanthes feei	PTERIDACEAE		native	
Cheilanthes gracillima	PTERIDACEAE		native	
Cheilanthes intertexta	PTERIDACEAE		native	
Cheilanthes newberryi	PTERIDACEAE		native	
Cheilanthes parryi	PTERIDACEAE		native	
Cheilanthes viscida	PTERIDACEAE	VISCID LACE FERN	native	
Cheilanthes wootonii	PTERIDACEAE	WOOTON'S LACE FERN	native	
Chenopodium album	CHENOPODIACEAE	LAMB'S QUARTERS; PIGWEED	naturalized	
Chenopodium atrovirens	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium berlandieri	CHENOPODIACEAE	PITSEED GOOSEFOOT	native	
Chenopodium berlandieri var. zschackei	CHENOPODIACEAE		native	
Chenopodium californicum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium capitatum	CHENOPODIACEAE		native	
Chenopodium capitatum var. capitatum	CHENOPODIACEAE		native	
Chenopodium capitatum var. parvicapitatum	CHENOPODIACEAE		native	
Chenopodium carnosulum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium carnosulum var. patagonicum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium chenopodioides	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium desiccatum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium foliosum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium fremontii	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium glaucum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium glaucum var. salinum	CHENOPODIACEAE		naturalized	
Chenopodium hians	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium incanum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium incanum var. occidentale	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium leptophyllum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium macrospermum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium macrospermum var. halophilum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium missouriense	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium murale	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium nevadense	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium pratericola	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium rubrum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	native	
Chenopodium rubrum var. humile	CHENOPODIACEAE		native	
Chenopodium rubrum var. rubrum	CHENOPODIACEAE		native	
Chenopodium simplex	CHENOPODIACEAE	LARGE-SEEDED GOOSEFOOT	native	
Chenopodium strictum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium strictum var. glaucophyllum	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chenopodium vulvaria	CHENOPODIACEAE	GOOSEFOOT; PIGWEED	naturalized	
Chilopsis linearis	BIGNONIACEAE	DESERT-WILLOW	native	
Chilopsis linearis subsp. arcuata	BIGNONIACEAE	DESERT-WILLOW	native	
Chimaphila menziesii	ERICACEAE	LITTLE PRINCE'S PINE	native	
Chimaphila umbellata	ERICACEAE	PRINCE'S PINE	native	
Chloracantha spinosa	ASTERACEAE		native	
Chloracantha spinosa var. spinosa	ASTERACEAE		native	
Chloris gayana	POACEAE	RHODES GRASS	naturalized	
Chloris verticillata	POACEAE		naturalized	
Chloris virgata	POACEAE		naturalized	
Chlorogalum angustifolium	AGAVACEAE	AMOLE; SOAP PLANT	native	
Chlorogalum grandiflorum	AGAVACEAE	RED HILLS SOAPROOT	native	
Chlorogalum parviflorum	AGAVACEAE	AMOLE; SOAP PLANT	native	
Chlorogalum pomeridianum	AGAVACEAE	AMOLE; SOAP PLANT	native	
Chlorogalum pomeridianum var. divaricatum	AGAVACEAE	AMOLE; SOAP PLANT	native	
Chlorogalum pomeridianum var. minus	AGAVACEAE	AMOLE; SOAP PLANT	native	
Chlorogalum pomeridianum var. pomeridianum	AGAVACEAE	AMOLE; SOAP PLANT	native	
Chlorogalum purpureum	AGAVACEAE	AMOLE; SOAP PLANT	native	
Chlorogalum purpureum var. purpureum	AGAVACEAE	PURPLE AMOLE	native	
Chlorogalum purpureum var. reductum	AGAVACEAE	CAMATTA CANYON AMOLE	native	
Chondrilla juncea	ASTERACEAE	SKELETON WEED	naturalized	
Chorisiva nevadensis	ASTERACEAE		native	acceptance uncertain
Chorispora tenella	BRASSICACEAE		naturalized	
Chorizanthe angustifolia	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe biloba	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe biloba var. biloba	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe biloba var. immemora	POLYGONACEAE	HERNANDEZ SPINEFLOWER	native	
Chorizanthe blakleyi	POLYGONACEAE	BLAKLEY'S SPINEFLOWER	native	
Chorizanthe brevicornu	POLYGONACEAE	BRITTLE SPINEFLOWER	native	
Chorizanthe brevicornu var. brevicornu	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe brevicornu var. spathulata	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe breweri	POLYGONACEAE	BREWER'S SPINEFLOWER	native	
Chorizanthe clevelandii	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe corrugata	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe cuspidata	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe cuspidata var. cuspidata	POLYGONACEAE		native	
Chorizanthe cuspidata var. villosa	POLYGONACEAE		native	
Chorizanthe diffusa	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe douglasii	POLYGONACEAE	DOUGLAS' SPINEFLOWER	native	
Chorizanthe fimbriata	POLYGONACEAE	FRINGED SPINEFLOWER	native	
Chorizanthe fimbriata var. fimbriata	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe fimbriata var. laciniata	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe howellii	POLYGONACEAE	HOWELL'S SPINEFLOWER	native	
Chorizanthe leptotheca	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe membranacea	POLYGONACEAE	PINK SPINEFLOWER	native	
Chorizanthe obovata	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe orcuttiana	POLYGONACEAE	ORCUTT'S SPINEFLOWER	native	
Chorizanthe palmeri	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe parryi	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe parryi var. fernandina	POLYGONACEAE	SAN FERNANDO VALLEY SPINEFLOWER	native	
Chorizanthe parryi var. parryi	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe polygonoides	POLYGONACEAE	KNOTWEED SPINEFLOWER	native	
Chorizanthe polygonoides var. longispina	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe polygonoides var. polygonoides	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe procumbens	POLYGONACEAE	PROSTRATE SPINEFLOWER	native	
Chorizanthe pungens	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe pungens var. hartwegiana	POLYGONACEAE		native	
Chorizanthe pungens var. pungens	POLYGONACEAE		native	
Chorizanthe rectispina	POLYGONACEAE	STRAIGHT-AWNED SPINEFLOWER	native	
Chorizanthe rigida	POLYGONACEAE	SPINY-HERB	native	
Chorizanthe robusta	POLYGONACEAE	ROBUST SPINEFLOWER	native	
Chorizanthe robusta var. hartwegii	POLYGONACEAE		native	
Chorizanthe robusta var. robusta	POLYGONACEAE		native	
Chorizanthe spinosa	POLYGONACEAE	MOJAVE SPINEFLOWER	native	
Chorizanthe staticoides	POLYGONACEAE	TURKISH RUGGING	native	
Chorizanthe stellulata	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe uniaristata	POLYGONACEAE	ONE-AWNED SPINEFLOWER	native	
Chorizanthe valida	POLYGONACEAE	SONOMA SPINEFLOWER	native	
Chorizanthe ventricosa	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe watsonii	POLYGONACEAE	WATSON'S SPINEFLOWER	native	
Chorizanthe wheeleri	POLYGONACEAE	WHEELER'S SPINEFLOWER	native	
Chorizanthe xanti	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe xanti var. leucotheca	POLYGONACEAE	SPINEFLOWER	native	
Chorizanthe xanti var. xanti	POLYGONACEAE	SPINEFLOWER	native	
Chrysanthemoides monilifera	ASTERACEAE		naturalized	
Chrysolepis chrysophylla	FAGACEAE	GIANT CHINQUAPIN	native	
Chrysolepis chrysophylla var. chrysophylla	FAGACEAE	CHINQUAPIN	native	
Chrysolepis chrysophylla var. minor	FAGACEAE	CHINQUAPIN	native	
Chrysolepis sempervirens	FAGACEAE	BUSH CHINQUAPIN	native	
Chrysosplenium glechomifolium	SAXIFRAGACEAE	GOLDEN SAXIFRAGE	native	
Chrysothamnus depressus	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Chrysothamnus greenei	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Chrysothamnus humilis	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Chrysothamnus nauseosus subsp. mohavensis	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Chrysothamnus viscidiflorus	ASTERACEAE	YELLOW RABBITBRUSH	native	acceptance uncertain
Chrysothamnus viscidiflorus subsp. axillaris	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Chrysothamnus viscidiflorus subsp. lanceolatus	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Chrysothamnus viscidiflorus subsp. puberulus	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Chrysothamnus viscidiflorus subsp. viscidiflorus	ASTERACEAE	RABBITBRUSH	native	acceptance uncertain
Cicendia quadrangularis	GENTIANACEAE		native	
Cichorium intybus	ASTERACEAE	CHICORY	naturalized	
Cicuta douglasii	APIACEAE	WATER HEMLOCK	native	
Cicuta maculata	APIACEAE	WATER HEMLOCK	native	
Cicuta maculata var. angustifolia	APIACEAE	WATER HEMLOCK	native	
Cicuta maculata var. bolanderi	APIACEAE	WATER HEMLOCK	native	
Cicuta maculata var. maculata	APIACEAE		native	acceptance uncertain
Cinna bolanderi	POACEAE	BOLANDER'S WOODREED	native	
Cinna latifolia	POACEAE	DROOPING WOODREED	native	
Cinnamomum camphora	LAURACEAE		naturalized	
Circaea alpina	ONAGRACEAE	ENCHANTER'S NIGHTSHADE	native	
Circaea alpina subsp. pacifica	ONAGRACEAE	ENCHANTER'S NIGHTSHADE	native	
Cirsium andersonii	ASTERACEAE	THISTLE	native	
Cirsium andrewsii	ASTERACEAE	FRANCISCAN THISTLE	native	
Cirsium arizonicum	ASTERACEAE	ARIZONA THISTLE	native	
Cirsium arizonicum var. tenuisectum	ASTERACEAE		native	
Cirsium arvense	ASTERACEAE	CANADA THISTLE	naturalized	
Cirsium brevistylum	ASTERACEAE	INDIAN THISTLE	native	
Cirsium canovirens	ASTERACEAE	GRAY-GREEN THISTLE	native	
Cirsium ciliolatum	ASTERACEAE	ASHLAND THISTLE	native	
Cirsium crassicaule	ASTERACEAE	THISTLE	native	
Cirsium cymosum	ASTERACEAE	PEREGRINE THISTLE	native	
Cirsium douglasii	ASTERACEAE	SWAMP THISTLE	native	
Cirsium douglasii var. breweri	ASTERACEAE	THISTLE	native	
Cirsium douglasii var. douglasii	ASTERACEAE	THISTLE	native	
Cirsium fontinale	ASTERACEAE	THISTLE	native	
Cirsium fontinale var. campylon	ASTERACEAE	HAMILTON THISTLE	native	
Cirsium fontinale var. fontinale	ASTERACEAE	FOUNTAIN THISTLE	native	
Cirsium fontinale var. obispoense	ASTERACEAE	CHORRO CREEK BOG THISTLE	native	
Cirsium hydrophilum	ASTERACEAE	THISTLE	native	
Cirsium hydrophilum var. hydrophilum	ASTERACEAE	SUISUN THISTLE	native	
Cirsium hydrophilum var. vaseyi	ASTERACEAE	MOUNT TAMALPAIS THISTLE	native	
Cirsium loncholepis	ASTERACEAE	LA GRACIOSA THISTLE	native	
Cirsium mohavense	ASTERACEAE	MOJAVE THISTLE	native	
Cirsium neomexicanum	ASTERACEAE	DESERT THISTLE	native	
Cirsium nidulum	ASTERACEAE	THISTLE	native	
Cirsium occidentale	ASTERACEAE	THISTLE	native	
Cirsium occidentale var. californicum	ASTERACEAE	CALIFORNIA THISTLE	native	
Cirsium occidentale var. candidissimum	ASTERACEAE	SNOWY THISTLE	native	
Cirsium occidentale var. compactum	ASTERACEAE	COMPACT COBWEBBY THISTLE	native	
Cirsium occidentale var. lucianum	ASTERACEAE		native	
Cirsium occidentale var. occidentale	ASTERACEAE	COBWEBBY THISTLE	native	
Cirsium occidentale var. venustum	ASTERACEAE	VENUS THISTLE	native	
Cirsium ochrocentrum	ASTERACEAE	YELLOWSPINE THISTLE	naturalized	
Cirsium quercetorum	ASTERACEAE	BROWNIE THISTLE	native	
Cirsium remotifolium	ASTERACEAE	THISTLE	native	
Cirsium rhothophilum	ASTERACEAE	SURF THISTLE	native	
Cirsium scariosum	ASTERACEAE	ELK THISTLE	native	
Cirsium scariosum var. congdonii	ASTERACEAE		native	
Cirsium scariosum var. robustum	ASTERACEAE		native	
Cirsium undulatum	ASTERACEAE	WAVYLEAF THISTLE	naturalized	
Cirsium vulgare	ASTERACEAE	BULL THISTLE	naturalized	
Cistanthe ambigua	MONTIACEAE		native	
Cistanthe maritima	MONTIACEAE		native	
Cistus incanus	CISTACEAE		naturalized	
Cistus ladanifer	CISTACEAE	GUM CISTUS	naturalized	
Cistus monspeliensis	CISTACEAE	ROCK-ROSE	naturalized	
Cistus salviifolius	CISTACEAE	ROCK-ROSE	naturalized	
Citrullus colocynthis	CUCURBITACEAE	WATERMELON	naturalized	
Cladium californicum	CYPERACEAE	SAW-GRASS	native	
Clarkia affinis	ONAGRACEAE		native	
Clarkia amoena	ONAGRACEAE	FAREWELL-TO-SPRING	native	
Clarkia amoena subsp. amoena	ONAGRACEAE	GODETIA	native	
Clarkia amoena subsp. huntiana	ONAGRACEAE		native	
Clarkia amoena subsp. whitneyi	ONAGRACEAE	WHITNEY'S FAREWELL-TO-SPRING	native	
Clarkia arcuata	ONAGRACEAE		native	
Clarkia australis	ONAGRACEAE	SMALL'S SOUTHERN CLARKIA	native	
Clarkia biloba	ONAGRACEAE		native	
Clarkia biloba subsp. australis	ONAGRACEAE	MARIPOSA CLARKIA	native	
Clarkia biloba subsp. biloba	ONAGRACEAE		native	
Clarkia biloba subsp. brandegeeae	ONAGRACEAE		native	
Clarkia borealis	ONAGRACEAE		native	
Clarkia borealis subsp. arida	ONAGRACEAE	NORTHERN CLARKIA	native	
Clarkia borealis subsp. borealis	ONAGRACEAE	NORTHERN CLARKIA	native	
Clarkia bottae	ONAGRACEAE	PUNCHBOWL GODETIA	native	
Clarkia breweri	ONAGRACEAE	BREWER'S CLARKIA; FAIRY FANS	native	
Clarkia concinna	ONAGRACEAE	RED RIBBONS	native	
Clarkia concinna subsp. automixa	ONAGRACEAE	SANTA CLARA RED RIBBONS	native	
Clarkia concinna subsp. concinna	ONAGRACEAE		native	
Clarkia concinna subsp. raichei	ONAGRACEAE	RAICHE'S RED RIBBONS	native	
Clarkia cylindrica	ONAGRACEAE		native	
Clarkia cylindrica subsp. clavicarpa	ONAGRACEAE		native	
Clarkia cylindrica subsp. cylindrica	ONAGRACEAE		native	
Clarkia davyi	ONAGRACEAE		native	
Clarkia delicata	ONAGRACEAE	CAMPO CLARKIA; DELICATE CLARKIA	native	
Clarkia dudleyana	ONAGRACEAE		native	
Clarkia epilobioides	ONAGRACEAE		native	
Clarkia exilis	ONAGRACEAE	SLENDER CLARKIA	native	
Clarkia franciscana	ONAGRACEAE	PRESIDIO CLARKIA	native	
Clarkia gracilis	ONAGRACEAE		native	
Clarkia gracilis subsp. albicaulis	ONAGRACEAE	WHITE-STEMMED CLARKIA	native	
Clarkia gracilis subsp. gracilis	ONAGRACEAE		native	
Clarkia gracilis subsp. sonomensis	ONAGRACEAE		native	
Clarkia gracilis subsp. tracyi	ONAGRACEAE		native	
Clarkia heterandra	ONAGRACEAE		native	
Clarkia imbricata	ONAGRACEAE	VINE HILL CLARKIA	native	
Clarkia jolonensis	ONAGRACEAE	JOLON CLARKIA	native	
Clarkia lassenensis	ONAGRACEAE		native	
Clarkia lewisii	ONAGRACEAE	LEWIS' CLARKIA	native	
Clarkia lingulata	ONAGRACEAE	MERCED CLARKIA	native	
Clarkia mildrediae	ONAGRACEAE	MILDRED'S CLARKIA	native	
Clarkia mildrediae subsp. lutescens	ONAGRACEAE		native	
Clarkia mildrediae subsp. mildrediae	ONAGRACEAE		native	
Clarkia modesta	ONAGRACEAE		native	
Clarkia mosquinii	ONAGRACEAE		native	
Clarkia prostrata	ONAGRACEAE		native	
Clarkia purpurea	ONAGRACEAE		native	
Clarkia purpurea subsp. purpurea	ONAGRACEAE		native	
Clarkia purpurea subsp. quadrivulnera	ONAGRACEAE	FOUR-SPOT	native	
Clarkia purpurea subsp. viminea	ONAGRACEAE		native	
Clarkia rhomboidea	ONAGRACEAE		native	
Clarkia rostrata	ONAGRACEAE	BEAKED CLARKIA	native	
Clarkia rubicunda	ONAGRACEAE		native	
Clarkia similis	ONAGRACEAE		native	
Clarkia speciosa	ONAGRACEAE		native	
Clarkia speciosa subsp. immaculata	ONAGRACEAE	PISMO CLARKIA	native	
Clarkia speciosa subsp. nitens	ONAGRACEAE		native	
Clarkia speciosa subsp. polyantha	ONAGRACEAE		native	
Clarkia speciosa subsp. speciosa	ONAGRACEAE		native	
Clarkia springvillensis	ONAGRACEAE	SPRINGVILLE CLARKIA	native	
Clarkia stellata	ONAGRACEAE		native	
Clarkia tembloriensis	ONAGRACEAE		native	
Clarkia tembloriensis subsp. calientensis	ONAGRACEAE	VASEK'S CLARKIA	native	
Clarkia tembloriensis subsp. tembloriensis	ONAGRACEAE		native	
Clarkia unguiculata	ONAGRACEAE		native	
Clarkia virgata	ONAGRACEAE	SIERRA CLARKIA	native	
Clarkia williamsonii	ONAGRACEAE		native	
Clarkia xantiana	ONAGRACEAE		native	
Clarkia xantiana subsp. parviflora	ONAGRACEAE		native	
Clarkia xantiana subsp. xantiana	ONAGRACEAE		native	
Claytonia cordifolia	MONTIACEAE		native	
Claytonia exigua	MONTIACEAE		native	
Claytonia exigua subsp. exigua	MONTIACEAE		native	
Claytonia exigua subsp. glauca	MONTIACEAE		native	
Claytonia gypsophiloides	MONTIACEAE		native	
Claytonia lanceolata	MONTIACEAE	WESTERN SPRING BEAUTY	native	
Claytonia megarhiza	MONTIACEAE	FELL-FIELDS CLAYTONIA	native	
Claytonia nevadensis	MONTIACEAE		native	
Claytonia palustris	MONTIACEAE	MARSH CLAYTONIA	native	
Claytonia parviflora	MONTIACEAE		native	
Claytonia parviflora subsp. grandiflora	MONTIACEAE		native	
Claytonia parviflora subsp. parviflora	MONTIACEAE		native	
Claytonia parviflora subsp. utahensis	MONTIACEAE		native	
Claytonia parviflora subsp. viridis	MONTIACEAE		native	
Claytonia perfoliata	MONTIACEAE	MINER'S LETTUCE	native	
Claytonia perfoliata subsp. intermontana	MONTIACEAE		native	
Claytonia perfoliata subsp. mexicana	MONTIACEAE		native	
Claytonia perfoliata subsp. perfoliata	MONTIACEAE		native	
Claytonia rubra	MONTIACEAE		native	
Claytonia rubra subsp. depressa	MONTIACEAE		native	
Claytonia rubra subsp. rubra	MONTIACEAE		native	
Claytonia saxosa	MONTIACEAE		native	
Claytonia sibirica	MONTIACEAE	CANDY FLOWER	native	
Claytonia umbellata	MONTIACEAE		native	
Claytonia washingtoniana	MONTIACEAE		native	
Clematis lasiantha	RANUNCULACEAE	PIPESTEMS	native	
Clematis ligusticifolia	RANUNCULACEAE	VIRGIN'S BOWER; YERBA DE CHIVA	native	
Clematis pauciflora	RANUNCULACEAE	ROPEVINE	native	
Cleome lutea	BRASSICACEAE	YELLOW BEE PLANT	native	
Cleome platycarpa	BRASSICACEAE	GOLDEN BEE PLANT	native	
Cleome serrulata	BRASSICACEAE	ROCKY MOUNTAIN BEE PLANT	native	
Cleome sparsifolia	BRASSICACEAE		native	
Cleomella brevipes	BRASSICACEAE		native	
Cleomella hillmanii	BRASSICACEAE		native	acceptance uncertain
Cleomella hillmanii var. hillmanii	BRASSICACEAE		native	acceptance uncertain
Cleomella obtusifolia	BRASSICACEAE	MOJAVE STINKWEED	native	
Cleomella parviflora	BRASSICACEAE		native	
Cleomella plocasperma	BRASSICACEAE		native	
Clintonia andrewsiana	LILIACEAE		native	
Clintonia uniflora	LILIACEAE		native	
Clitoria ternatea	FABACEAE		naturalized	acceptance uncertain
Cneoridium dumosum	RUTACEAE	BUSHRUE	native	
Cochlearia officinalis	BRASSICACEAE	SCURVEYGRASS	native	
Cochlearia officinalis var. arctica	BRASSICACEAE	GREENLAND'S COCHLEARIA	native	
Coincya monensis	BRASSICACEAE		naturalized	
Coix lacryma-jobi	POACEAE		naturalized	acceptance uncertain
Coleogyne ramosissima	ROSACEAE	BLACKBUSH	native	
Collinsia antonina	PLANTAGINACEAE		native	
Collinsia bartsiifolia	PLANTAGINACEAE		native	
Collinsia bartsiifolia var. bartsiifolia	PLANTAGINACEAE		native	
Collinsia bartsiifolia var. davidsonii	PLANTAGINACEAE		native	
Collinsia callosa	PLANTAGINACEAE		native	
Collinsia childii	PLANTAGINACEAE		native	
Collinsia concolor	PLANTAGINACEAE		native	
Collinsia corymbosa	PLANTAGINACEAE	ROUND-HEADED CHINESE HOUSES	native	
Collinsia grandiflora	PLANTAGINACEAE		native	
Collinsia greenei	PLANTAGINACEAE		native	
Collinsia heterophylla	PLANTAGINACEAE	CHINESE HOUSES	native	
Collinsia linearis	PLANTAGINACEAE		native	
Collinsia multicolor	PLANTAGINACEAE	SAN FRANCISCO COLLINSIA	native	
Collinsia parryi	PLANTAGINACEAE		native	
Collinsia parviflora	PLANTAGINACEAE	BLUE-EYED MARY	native	
Collinsia rattanii	PLANTAGINACEAE		native	
Collinsia sparsiflora	PLANTAGINACEAE		native	
Collinsia sparsiflora var. arvensis	PLANTAGINACEAE		native	
Collinsia sparsiflora var. collina	PLANTAGINACEAE		native	
Collinsia sparsiflora var. sparsiflora	PLANTAGINACEAE		native	
Collinsia tinctoria	PLANTAGINACEAE		native	
Collinsia torreyi	PLANTAGINACEAE		native	
Collinsia torreyi var. brevicarinata	PLANTAGINACEAE		native	
Collinsia torreyi var. latifolia	PLANTAGINACEAE		native	
Collinsia torreyi var. torreyi	PLANTAGINACEAE		native	
Collinsia torreyi var. wrightii	PLANTAGINACEAE		native	
Collomia diversifolia	POLEMONIACEAE	SERPENTINE COLLOMIA	native	
Collomia grandiflora	POLEMONIACEAE		native	
Collomia heterophylla	POLEMONIACEAE		native	
Collomia larsenii	POLEMONIACEAE	TALUS COLLOMIA	native	
Collomia linearis	POLEMONIACEAE		native	
Collomia rawsoniana	POLEMONIACEAE	FLAMING TRUMPET	native	
Collomia tinctoria	POLEMONIACEAE		native	
Collomia tracyi	POLEMONIACEAE	TRACY'S COLLOMIA	native	
Colubrina californica	RHAMNACEAE	LAS ANIMAS COLUBRINA	native	
Colutea arborescens	FABACEAE	BLADDER SENNA	naturalized	
Comandra umbellata	SANTALACEAE	BASTARD TOAD-FLAX	native	
Comandra umbellata subsp. californica	SANTALACEAE	BASTARD TOAD-FLAX	native	
Comarostaphylis diversifolia	ERICACEAE		native	
Comarostaphylis diversifolia subsp. diversifolia	ERICACEAE	SUMMER HOLLY	native	
Comarostaphylis diversifolia subsp. planifolia	ERICACEAE		native	
Comastoma tenellum	GENTIANACEAE		native	
Commelina benghalensis	COMMELINACEAE	DAYFLOWER	naturalized	
Condalia globosa	RHAMNACEAE		native	
Condalia globosa var. pubescens	RHAMNACEAE		native	
Conicosia pugioniformis	AIZOACEAE		naturalized	
Conioselinum pacificum	APIACEAE		native	
Conium maculatum	APIACEAE	POISON HEMLOCK	naturalized	
Conringia orientalis	BRASSICACEAE	HARE'S EAR	naturalized	
Consolida ajacis	RANUNCULACEAE		naturalized	
Constancea nevinii	ASTERACEAE		native	
Convolvulus arvensis	CONVOLVULACEAE	BINDWEED; ORCHARD MORNING-GLORY	naturalized	
Convolvulus simulans	CONVOLVULACEAE	BINDWEED; MORNING-GLORY	native	
Conyza bilbaoana	ASTERACEAE		naturalized	
Conyza bonariensis	ASTERACEAE		naturalized	
Conyza canadensis	ASTERACEAE	HORSEWEED	native	
Conyza floribunda	ASTERACEAE		naturalized	
Coptis laciniata	RANUNCULACEAE	GOLDTHREAD	native	
Corallorhiza maculata	ORCHIDACEAE	SPOTTED CORALROOT	native	
Corallorhiza maculata var. maculata	ORCHIDACEAE		native	
Corallorhiza maculata var. occidentalis	ORCHIDACEAE		native	
Corallorhiza mertensiana	ORCHIDACEAE	WESTERN CORALROOT	native	
Corallorhiza striata	ORCHIDACEAE	STRIPED CORALROOT	native	
Corallorhiza trifida	ORCHIDACEAE	NORTHERN CORALROOT	native	
Cordylanthus capitatus	SCROPHULARIACEAE	YAKIMA BIRD'S-BEAK	native	
Cordylanthus eremicus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus eremicus subsp. eremicus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus eremicus subsp. kernensis	SCROPHULARIACEAE	INYO BIRD'S-BEAK	native	
Cordylanthus kingii	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus kingii subsp. helleri	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus maritimus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus maritimus subsp. canescens	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus maritimus subsp. maritimus	SCROPHULARIACEAE	SALT MARSH BIRD'S-BEAK	native	
Cordylanthus maritimus subsp. palustris	SCROPHULARIACEAE	POINT REYES BIRD'S-BEAK	native	
Cordylanthus mollis	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus mollis subsp. hispidus	SCROPHULARIACEAE	HISPID BIRD'S-BEAK	native	
Cordylanthus mollis subsp. mollis	SCROPHULARIACEAE	SOFT BIRD'S-BEAK	native	
Cordylanthus nevinii	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus nidularius	SCROPHULARIACEAE	MOUNT DIABLO BIRD'S-BEAK	native	
Cordylanthus orcuttianus	SCROPHULARIACEAE	ORCUTT'S BIRD'S-BEAK	native	
Cordylanthus palmatus	SCROPHULARIACEAE	PALMATE BIRD'S-BEAK	native	
Cordylanthus parviflorus	SCROPHULARIACEAE	PURPLE BIRD'S-BEAK	native	
Cordylanthus pilosus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus pilosus subsp. hansenii	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus pilosus subsp. pilosus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus pilosus subsp. trifidus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus pringlei	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus ramosus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus rigidus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus rigidus subsp. brevibracteatus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus rigidus subsp. littoralis	SCROPHULARIACEAE	SEASIDE BIRD'S-BEAK	native	
Cordylanthus rigidus subsp. rigidus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus rigidus subsp. setigerus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus tecopensis	SCROPHULARIACEAE	TECOPA BIRD'S-BEAK	native	
Cordylanthus tenuis	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. barbatus	SCROPHULARIACEAE	FRESNO COUNTY BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. brunneus	SCROPHULARIACEAE	SERPENTINE BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. capillaris	SCROPHULARIACEAE	PENNELL'S BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. pallescens	SCROPHULARIACEAE	PALLID BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. tenuis	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. viscidus	SCROPHULARIACEAE	BIRD'S-BEAK	native	
Cordyline australis	LAXMANNIACEAE		naturalized	acceptance uncertain
Coreopsis lanceolata	ASTERACEAE	GARDEN COREOPSIS	naturalized	
Coreopsis tinctoria	ASTERACEAE	CALLIOPSIS	naturalized	
Coreopsis wrightii	ASTERACEAE	TICKSEED	naturalized	
Corethrogyne filaginifolia	ASTERACEAE		native	
Coriandrum sativum	APIACEAE	CILANTRO; CORIANDER	naturalized	
Corispermum hyssopifolium	CHENOPODIACEAE		naturalized	
Cornus canadensis	CORNACEAE	BUNCHBERRY	native	
Cornus glabrata	CORNACEAE	BROWN DOGWOOD	native	
Cornus nuttallii	CORNACEAE	MOUNTAIN DOGWOOD	native	
Cornus sericea	CORNACEAE	AMERICAN DOGWOOD	native	
Cornus sericea subsp. occidentalis	CORNACEAE	DOGWOOD	native	
Cornus sericea subsp. sericea	CORNACEAE	DOGWOOD	native	
Cornus sessilis	CORNACEAE	DOGWOOD	native	
Coronilla varia	FABACEAE		naturalized	
Cortaderia jubata	POACEAE		naturalized	
Cortaderia selloana	POACEAE	PAMPAS GRASS	naturalized	
Corydalis aurea	PAPAVERACEAE		native	
Corydalis caseana	PAPAVERACEAE		native	
Corydalis caseana subsp. caseana	PAPAVERACEAE	FITWEED; SIERRA CORYDALIS	native	
Corylus cornuta	BETULACEAE	FILBERT; HAZELNUT	native	
Corylus cornuta subsp. californica	BETULACEAE		native	
Coryphantha alversonii	CACTACEAE		native	
Coryphantha chlorantha	CACTACEAE		native	
Coryphantha vivipara	CACTACEAE		native	
Coryphantha vivipara var. rosea	CACTACEAE		native	
Cosmos bipinnatus	ASTERACEAE	GARDEN COSMOS	naturalized	
Cosmos sulphureus	ASTERACEAE		naturalized	
Cotoneaster franchetii	ROSACEAE		naturalized	
Cotoneaster lacteus	ROSACEAE		naturalized	
Cotoneaster microphyllus	ROSACEAE		naturalized	acceptance uncertain
Cotoneaster pannosus	ROSACEAE		naturalized	
Cotoneaster simonsii	ROSACEAE		naturalized	acceptance uncertain
Cotula australis	ASTERACEAE		naturalized	
Cotula coronopifolia	ASTERACEAE	BRASS-BUTTONS	naturalized	
Cotyledon orbiculata	CRASSULACEAE		naturalized	
Cotyledon orbiculata var. oblonga	CRASSULACEAE		naturalized	
Crassula aquatica	CRASSULACEAE		native	
Crassula colligata	CRASSULACEAE		naturalized	
Crassula colligata subsp. lamprosperma	CRASSULACEAE		naturalized	
Crassula connata	CRASSULACEAE	PYGMY-WEED	native	
Crassula solieri	CRASSULACEAE		native	
Crassula tetragona	CRASSULACEAE		naturalized	
Crassula tillaea	CRASSULACEAE		naturalized	
Crataegus castlegarensis	ROSACEAE		native	acceptance uncertain
Crataegus douglasii	ROSACEAE	HAWTHORN	native	
Crataegus monogyna	ROSACEAE		naturalized	
Crataegus suksdorfii	ROSACEAE	HAWTHORN	native	
Crepis acuminata	ASTERACEAE	HAWKSBEARD	native	
Crepis bakeri	ASTERACEAE	HAWKSBEARD	native	
Crepis bursifolia	ASTERACEAE	HAWKSBEARD	naturalized	
Crepis capillaris	ASTERACEAE	HAWKSBEARD	naturalized	
Crepis intermedia	ASTERACEAE	HAWKSBEARD	native	
Crepis modocensis	ASTERACEAE	HAWKSBEARD	native	
Crepis monticola	ASTERACEAE	HAWKSBEARD	native	
Crepis nana	ASTERACEAE	HAWKSBEARD	native	
Crepis occidentalis	ASTERACEAE	HAWKSBEARD	native	
Crepis pleurocarpa	ASTERACEAE	HAWKSBEARD	native	
Crepis runcinata	ASTERACEAE	HAWKSBEARD	native	
Crepis runcinata subsp. andersonii	ASTERACEAE	HAWKSBEARD	native	
Crepis runcinata subsp. hallii	ASTERACEAE	HALL'S MEADOW HAWKSBEARD	native	
Crepis setosa	ASTERACEAE	HAWKSBEARD	naturalized	
Crepis tectorum	ASTERACEAE		naturalized	
Crepis vesicaria	ASTERACEAE	HAWKSBEARD	naturalized	
Crepis vesicaria subsp. taraxacifolia	ASTERACEAE	HAWKSBEARD	naturalized	
Cressa truxillensis	CONVOLVULACEAE	ALKALI WEED	native	
Crocidium multicaule	ASTERACEAE	SPRING GOLD	native	
Crocosmia × crocosmiiflora	IRIDACEAE		naturalized	
Crossosoma bigelovii	CROSSOSOMATACEAE		native	
Crossosoma californicum	CROSSOSOMATACEAE	CATALINA CROSSOSOMA	native	
Croton californicus	EUPHORBIACEAE		native	
Croton setigerus	EUPHORBIACEAE		native	
Croton wigginsii	EUPHORBIACEAE	WIGGINS' CROTON	native	
Crucianella angustifolia	RUBIACEAE	CROSS-WORT	naturalized	
Crupina vulgaris	ASTERACEAE	BEARDED CREEPER	naturalized	
Crypsis alopecuroides	POACEAE	PRICKLE GRASS	naturalized	
Crypsis schoenoides	POACEAE	SWAMP GRASS	naturalized	
Crypsis vaginiflora	POACEAE	PRICKLE GRASS	naturalized	
Cryptantha affinis	BORAGINACEAE		native	
Cryptantha ambigua	BORAGINACEAE		native	
Cryptantha angustifolia	BORAGINACEAE		native	
Cryptantha barbigera	BORAGINACEAE		native	
Cryptantha cinerea	BORAGINACEAE		native	
Cryptantha cinerea var. abortiva	BORAGINACEAE	BOWNUT CRYPTANTHA	native	
Cryptantha circumscissa	BORAGINACEAE		native	
Cryptantha clevelandii	BORAGINACEAE		native	
Cryptantha clokeyi	BORAGINACEAE	CLOKEY'S CRYPTANTHA	native	
Cryptantha confertiflora	BORAGINACEAE	YELLOW CRYPTANTHA	native	
Cryptantha costata	BORAGINACEAE	RIBBED CRYPTANTHA	native	
Cryptantha crinita	BORAGINACEAE	SILKY CRYPTANTHA	native	
Cryptantha crymophila	BORAGINACEAE	SUBALPINE CRYPTANTHA	native	
Cryptantha decipiens	BORAGINACEAE		native	
Cryptantha dumetorum	BORAGINACEAE		native	
Cryptantha echinella	BORAGINACEAE		native	
Cryptantha excavata	BORAGINACEAE	DEEP-SCARRED CRYPTANTHA	native	
Cryptantha flaccida	BORAGINACEAE		native	
Cryptantha flavoculata	BORAGINACEAE		native	
Cryptantha ganderi	BORAGINACEAE	GANDER'S CRYPTANTHA	native	
Cryptantha glomeriflora	BORAGINACEAE		native	
Cryptantha gracilis	BORAGINACEAE		native	
Cryptantha hispidula	BORAGINACEAE		native	
Cryptantha holoptera	BORAGINACEAE	WINGED CRYPTANTHA	native	
Cryptantha hooveri	BORAGINACEAE	HOOVER'S CRYPTANTHA	native	
Cryptantha humilis	BORAGINACEAE		native	
Cryptantha incana	BORAGINACEAE		native	
Cryptantha intermedia	BORAGINACEAE		native	
Cryptantha leiocarpa	BORAGINACEAE		native	
Cryptantha mariposae	BORAGINACEAE	MARIPOSA CRYPTANTHA	native	
Cryptantha maritima	BORAGINACEAE		native	
Cryptantha micrantha	BORAGINACEAE		native	
Cryptantha micromeres	BORAGINACEAE		native	
Cryptantha microstachys	BORAGINACEAE		native	
Cryptantha milobakeri	BORAGINACEAE		native	
Cryptantha mohavensis	BORAGINACEAE		native	
Cryptantha muricata	BORAGINACEAE		native	
Cryptantha nemaclada	BORAGINACEAE		native	
Cryptantha nevadensis	BORAGINACEAE		native	
Cryptantha nubigena	BORAGINACEAE		native	
Cryptantha oxygona	BORAGINACEAE		native	
Cryptantha pterocarya	BORAGINACEAE		native	
Cryptantha racemosa	BORAGINACEAE		native	
Cryptantha recurvata	BORAGINACEAE		native	
Cryptantha roosiorum	BORAGINACEAE	BRISTLECONE CRYPTANTHA	native	
Cryptantha simulans	BORAGINACEAE		native	
Cryptantha sobolifera	BORAGINACEAE		native	
Cryptantha torreyana	BORAGINACEAE		native	
Cryptantha traskiae	BORAGINACEAE	TRASK'S CRYPTANTHA	native	
Cryptantha tumulosa	BORAGINACEAE	NEW YORK MOUNTAINS CRYPTANTHA	native	
Cryptantha utahensis	BORAGINACEAE		native	
Cryptantha virginensis	BORAGINACEAE		native	
Cryptantha watsonii	BORAGINACEAE		native	
Cryptogramma acrostichoides	PTERIDACEAE	AMERICAN PARSLEY FERN	native	
Cryptogramma cascadensis	PTERIDACEAE	PARSLEY FERN; ROCK-BRAKE	native	
Cucumis melo	CUCURBITACEAE	CUCUMBER; MELON	naturalized	
Cucumis melo var. dudaim	CUCURBITACEAE	DUDAIM MELON	naturalized	
Cucumis myriocarpus	CUCURBITACEAE	PADDY MELON	naturalized	
Cucurbita digitata	CUCURBITACEAE	FINGER-LEAVED GOURD	native	
Cucurbita foetidissima	CUCURBITACEAE	CALABAZILLA	native	
Cucurbita palmata	CUCURBITACEAE	COYOTE MELON	native	
Cucurbita pepo	CUCURBITACEAE		naturalized	acceptance uncertain
Cucurbita pepo var. pepo	CUCURBITACEAE		naturalized	acceptance uncertain
Cuniculotinus gramineus	ASTERACEAE		native	
Cupaniopsis anacardioides	SAPINDACEAE		naturalized	acceptance uncertain
Cuscuta approximata	CONVOLVULACEAE	DODDER	naturalized	
Cuscuta brachycalyx	CONVOLVULACEAE		native	
Cuscuta californica	CONVOLVULACEAE	DODDER	native	
Cuscuta californica var. apiculata	CONVOLVULACEAE	DODDER	native	
Cuscuta californica var. californica	CONVOLVULACEAE	DODDER	native	
Cuscuta californica var. papillosa	CONVOLVULACEAE	DODDER	native	
Cuscuta campestris	CONVOLVULACEAE		native	
Cuscuta cephalanthi	CONVOLVULACEAE	DODDER	native	
Cuscuta denticulata	CONVOLVULACEAE	DODDER	native	
Cuscuta howelliana	CONVOLVULACEAE	BOGGS LAKE DODDER	native	
Cuscuta indecora	CONVOLVULACEAE	DODDER	native	
Cuscuta indecora var. indecora	CONVOLVULACEAE	DODDER	native	
Cuscuta jepsonii	CONVOLVULACEAE		native	
Cuscuta nevadensis	CONVOLVULACEAE		native	
Cuscuta occidentalis	CONVOLVULACEAE		native	
Cuscuta pacifica	CONVOLVULACEAE		native	
Cuscuta pacifica var. pacifica	CONVOLVULACEAE		native	
Cuscuta pacifica var. papillata	CONVOLVULACEAE		native	
Cuscuta salina	CONVOLVULACEAE	DODDER	native	
Cuscuta subinclusa	CONVOLVULACEAE	DODDER	native	
Cuscuta suksdorfii	CONVOLVULACEAE		native	
Cusickiella douglasii	BRASSICACEAE		native	
Cusickiella quadricostata	BRASSICACEAE		native	
Cycladenia humilis	APOCYNACEAE		native	
Cycladenia humilis var. humilis	APOCYNACEAE		native	
Cycladenia humilis var. jonesii	APOCYNACEAE		native	
Cycladenia humilis var. venusta	APOCYNACEAE		native	
Cycloloma atriplicifolium	CHENOPODIACEAE	WINGED PIGWEED	naturalized	
Cyclospermum leptophyllum	APIACEAE		naturalized	
Cydonia oblonga	ROSACEAE		naturalized	acceptance uncertain
Cylindropuntia acanthocarpa	CACTACEAE		native	
Cylindropuntia acanthocarpa var. coloradensis	CACTACEAE		native	
Cylindropuntia acanthocarpa var. major	CACTACEAE		native	acceptance uncertain
Cylindropuntia bigelovii	CACTACEAE		native	
Cylindropuntia californica	CACTACEAE		native	
Cylindropuntia californica var. californica	CACTACEAE		native	acceptance uncertain
Cylindropuntia californica var. parkeri	CACTACEAE		native	
Cylindropuntia echinocarpa	CACTACEAE		native	
Cylindropuntia ganderi	CACTACEAE		native	
Cylindropuntia prolifera	CACTACEAE		native	
Cylindropuntia ramosissima	CACTACEAE		native	
Cylindropuntia wolfii	CACTACEAE		native	
Cymbalaria muralis	PLANTAGINACEAE	KENILWORTH IVY	naturalized	
Cymopterus aboriginum	APIACEAE		native	
Cymopterus cinerarius	APIACEAE		native	
Cymopterus deserticola	APIACEAE	DESERT CYMOPTERUS	native	
Cymopterus gilmanii	APIACEAE	GILMAN'S CYMOPTERUS	native	
Cymopterus globosus	APIACEAE		native	
Cymopterus multinervatus	APIACEAE		native	
Cymopterus panamintensis	APIACEAE		native	
Cymopterus panamintensis var. acutifolius	APIACEAE		native	
Cymopterus panamintensis var. panamintensis	APIACEAE		native	
Cymopterus purpurascens	APIACEAE		native	
Cymopterus ripleyi	APIACEAE	RIPLEY'S CYMOPTERUS	native	
Cymopterus terebinthinus	APIACEAE		native	
Cymopterus terebinthinus var. californicus	APIACEAE		native	
Cymopterus terebinthinus var. petraeus	APIACEAE		native	
Cynara cardunculus	ASTERACEAE	ARTICHOKE THISTLE; CARDOON	naturalized	
Cynara scolymus	ASTERACEAE	ARTICHOKE	naturalized	
Cynodon dactylon	POACEAE	BERMUDA GRASS	naturalized	
Cynodon plectostachyus	POACEAE	STAR GRASS	naturalized	
Cynodon transvaalensis	POACEAE	AFRICAN BERMUDA GRASS	naturalized	
Cynoglossum grande	BORAGINACEAE	HOUND'S TONGUE	native	
Cynoglossum occidentale	BORAGINACEAE	HOUND'S TONGUE	native	
Cynoglossum officinale	BORAGINACEAE	HOUND'S TONGUE	naturalized	
Cynosurus cristatus	POACEAE	CRESTED DOGTAIL	naturalized	
Cynosurus echinatus	POACEAE	HEDGEHOG DOGTAIL	naturalized	
Cyperus acuminatus	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus bipartitus	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus difformis	CYPERACEAE	GALINGALE; NUTSEDGE	naturalized	
Cyperus eragrostis	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus erythrorhizos	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus esculentus	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus flavescens	CYPERACEAE		naturalized	
Cyperus flavicomus	CYPERACEAE		naturalized	
Cyperus fuscus	CYPERACEAE	GALINGALE; NUTSEDGE	naturalized	
Cyperus involucratus	CYPERACEAE	GALINGALE; NUTSEDGE	naturalized	
Cyperus iria	CYPERACEAE		naturalized	
Cyperus laevigatus	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus niger	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus odoratus	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus owanii	CYPERACEAE		naturalized	
Cyperus papyrus	CYPERACEAE		naturalized	acceptance uncertain
Cyperus parishii	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus prolifer	CYPERACEAE		naturalized	acceptance uncertain
Cyperus rotundus	CYPERACEAE	PURPLE NUTSEDGE	naturalized	
Cyperus squarrosus	CYPERACEAE	GALINGALE; NUTSEDGE	native	
Cyperus strigosus	CYPERACEAE	FALSE NUTSEDGE	native	
Cypripedium californicum	ORCHIDACEAE	CALIFORNIA LADY'S-SLIPPER	native	
Cypripedium fasciculatum	ORCHIDACEAE	CLUSTERED LADY'S-SLIPPER	native	
Cypripedium montanum	ORCHIDACEAE	MOUNTAIN LADY'S SLIPPER	native	
Cypripedium parviflorum	ORCHIDACEAE		native	
Cypripedium parviflorum var. makasin	ORCHIDACEAE		native	
Cypselea humifusa	AIZOACEAE		naturalized	
Cyrtomium falcatum	DRYOPTERIDACEAE	HOLLY FERN	naturalized	
Cystopteris fragilis	WOODSIACEAE	FRAGILE FERN	native	
Cytisus multiflorus	FABACEAE	PORTUGUESE BROOM; SPANISH BROOM	naturalized	
Cytisus proliferus	FABACEAE		naturalized	
Cytisus scoparius	FABACEAE	SCOTCH BROOM	naturalized	
Cytisus striatus	FABACEAE		naturalized	
Dactylis glomerata	POACEAE	ORCHARD GRASS	naturalized	
Dactyloctenium aegyptium	POACEAE	CROWFOOT GRASS	naturalized	
Dalea mollis	FABACEAE		native	
Dalea mollissima	FABACEAE		native	
Dalea ornata	FABACEAE	ORNATE DALEA	native	
Dalea searlsiae	FABACEAE		native	
Damasonium californicum	ALISMATACEAE		native	
Danthonia californica	POACEAE	CALIFORNIA OATGRASS	native	
Danthonia californica var. americana	POACEAE	OATGRASS	native	
Danthonia californica var. californica	POACEAE	OATGRASS	native	
Danthonia intermedia	POACEAE	INTERMEDIATE OATGRASS	native	
Danthonia unispicata	POACEAE	ONE-SPIKE OATGRASS	native	
Darlingtonia californica	SARRACENIACEAE	CALIFORNIA PITCHER PLANT; COBRA LILY	native	
Darmera peltata	SAXIFRAGACEAE	INDIAN RHUBARB; UMBRELLA PLANT	native	
Datisca glomerata	DATISCACEAE	DURANGO ROOT	native	
Datura discolor	SOLANACEAE	JIMSON WEED; THORN-APPLE	native	
Datura ferox	SOLANACEAE	JIMSON WEED; THORN-APPLE	naturalized	
Datura stramonium	SOLANACEAE	JIMSON WEED	naturalized	
Datura wrightii	SOLANACEAE	JIMSON WEED; THORN-APPLE	native	
Daucus carota	APIACEAE	CARROT; QUEEN ANNE'S LACE	naturalized	
Daucus pusillus	APIACEAE		native	
Dedeckera eurekensis	POLYGONACEAE	JULY GOLD	native	
Deinandra arida	ASTERACEAE		native	
Deinandra bacigalupii	ASTERACEAE		native	
Deinandra clementina	ASTERACEAE		native	
Deinandra conjugens	ASTERACEAE		native	
Deinandra corymbosa	ASTERACEAE		native	
Deinandra corymbosa subsp. corymbosa	ASTERACEAE		native	
Deinandra corymbosa subsp. macrocephala	ASTERACEAE		native	
Deinandra fasciculata	ASTERACEAE		native	
Deinandra floribunda	ASTERACEAE		native	
Deinandra halliana	ASTERACEAE		native	
Deinandra increscens	ASTERACEAE		native	
Deinandra increscens subsp. increscens	ASTERACEAE		native	
Deinandra increscens subsp. villosa	ASTERACEAE		native	
Deinandra kelloggii	ASTERACEAE		native	
Deinandra lobbii	ASTERACEAE		native	
Deinandra minthornii	ASTERACEAE		native	
Deinandra mohavensis	ASTERACEAE		native	
Deinandra pallida	ASTERACEAE		native	
Deinandra paniculata	ASTERACEAE		native	
Deinandra pentactis	ASTERACEAE		native	
Delairea odorata	ASTERACEAE		naturalized	
Delosperma litorale	AIZOACEAE		naturalized	
Delphinium andersonii	RANUNCULACEAE	LARKSPUR	native	
Delphinium antoninum	RANUNCULACEAE	ANTHONY PEAK LARKSPUR	native	
Delphinium bakeri	RANUNCULACEAE	BAKER'S LARKSPUR	native	
Delphinium californicum	RANUNCULACEAE	LARKSPUR	native	
Delphinium californicum subsp. californicum	RANUNCULACEAE	CALIFORNIA LARKSPUR; COAST LARKSPUR	native	
Delphinium californicum subsp. interius	RANUNCULACEAE	HOSPITAL CANYON LARKSPUR	native	
Delphinium cardinale	RANUNCULACEAE	CARDINAL LARKSPUR; SCARLET LARKSPUR	native	
Delphinium decorum	RANUNCULACEAE	YELLOWTINGE LARKSPUR	native	
Delphinium decorum subsp. decorum	RANUNCULACEAE	COAST LARKSPUR	native	
Delphinium decorum subsp. tracyi	RANUNCULACEAE	TRACY'S LARKSPUR	native	
Delphinium depauperatum	RANUNCULACEAE	LARKSPUR	native	
Delphinium glaucum	RANUNCULACEAE	MOUNTAIN LARKSPUR	native	
Delphinium gracilentum	RANUNCULACEAE	LARKSPUR	native	
Delphinium gypsophilum	RANUNCULACEAE	LARKSPUR	native	
Delphinium gypsophilum subsp. gypsophilum	RANUNCULACEAE	GYPSUM-LOVING LARKSPUR	native	
Delphinium gypsophilum subsp. parviflorum	RANUNCULACEAE	SMALL-FLOWERED GYPSUM-LOVING LARKSPUR	native	
Delphinium hansenii	RANUNCULACEAE	HANSEN'S LARKSPUR	native	
Delphinium hansenii subsp. ewanianum	RANUNCULACEAE	EWAN'S LARKSPUR	native	
Delphinium hansenii subsp. hansenii	RANUNCULACEAE	LARKSPUR	native	
Delphinium hansenii subsp. kernense	RANUNCULACEAE	LARKSPUR	native	
Delphinium hesperium	RANUNCULACEAE	COAST LARKSPUR; WESTERN LARKSPUR	native	
Delphinium hesperium subsp. cuyamacae	RANUNCULACEAE	CUYAMACA LARKSPUR	native	
Delphinium hesperium subsp. hesperium	RANUNCULACEAE	LARKSPUR	native	
Delphinium hesperium subsp. pallescens	RANUNCULACEAE	LARKSPUR	native	
Delphinium hutchinsoniae	RANUNCULACEAE	HUTCHINSON'S LARKSPUR	native	
Delphinium inopinum	RANUNCULACEAE	UNEXPECTED LARKSPUR	native	
Delphinium luteum	RANUNCULACEAE	GOLDEN LARKSPUR; YELLOW LARKSPUR	native	
Delphinium nudicaule	RANUNCULACEAE	ORANGE LARKSPUR; RED LARKSPUR	native	
Delphinium nuttallianum	RANUNCULACEAE	DWARF LARKSPUR; LARKSPUR; MEADOW LARKSPUR; SLIM; SONNE'S LARKSPUR	native	
Delphinium parishii	RANUNCULACEAE	LARKSPUR	native	
Delphinium parishii subsp. pallidum	RANUNCULACEAE	PALE-FLOWERED LARKSPUR	native	
Delphinium parishii subsp. parishii	RANUNCULACEAE	DESERT LARKSPUR; PARISH'S LARKSPUR	native	
Delphinium parishii subsp. subglobosum	RANUNCULACEAE	LARKSPUR	native	
Delphinium parryi	RANUNCULACEAE	LARKSPUR	native	
Delphinium parryi subsp. blochmaniae	RANUNCULACEAE	BLOCHMAN'S LARKSPUR; DUNE LARKSPUR	native	
Delphinium parryi subsp. eastwoodiae	RANUNCULACEAE	EASTWOOD'S LARKSPUR	native	
Delphinium parryi subsp. maritimum	RANUNCULACEAE	LARKSPUR	native	
Delphinium parryi subsp. parryi	RANUNCULACEAE	PARRY'S LARKSPUR	native	
Delphinium parryi subsp. purpureum	RANUNCULACEAE	MOUNT PINOS LARKSPUR	native	
Delphinium patens	RANUNCULACEAE	SPREADING LARKSPUR	native	
Delphinium patens subsp. hepaticoideum	RANUNCULACEAE	LARKSPUR	native	
Delphinium patens subsp. montanum	RANUNCULACEAE	LARKSPUR	native	
Delphinium patens subsp. patens	RANUNCULACEAE	LARKSPUR	native	
Delphinium polycladon	RANUNCULACEAE	HIGH MOUNTAIN LARKSPUR	native	
Delphinium purpusii	RANUNCULACEAE	KERN COUNTY LARKSPUR; LARKSPUR; PURPUS' LARKSPUR; ROSE-FLOWERED	native	
Delphinium recurvatum	RANUNCULACEAE	RECURVED LARKSPUR; VALLEY LARKSPUR	native	
Delphinium scaposum	RANUNCULACEAE		native	
Delphinium stachydeum	RANUNCULACEAE	ROCKY MOUNTAIN LARKSPUR; SPIKED LARKSPUR	native	
Delphinium trolliifolium	RANUNCULACEAE	COW POISON	native	
Delphinium uliginosum	RANUNCULACEAE	BOG LARKSPUR; SWAMP LARKSPUR	native	
Delphinium umbraculorum	RANUNCULACEAE	UMBRELLA LARKSPUR	native	
Delphinium variegatum	RANUNCULACEAE	ROYAL LARKSPUR	native	
Delphinium variegatum subsp. kinkiense	RANUNCULACEAE	SAN CLEMENTE ISLAND LARKSPUR	native	
Delphinium variegatum subsp. thornei	RANUNCULACEAE	THORNE'S ROYAL LARKSPUR	native	
Delphinium variegatum subsp. variegatum	RANUNCULACEAE	LARKSPUR	native	
Dendromecon harfordii	PAPAVERACEAE	CHANNEL ISLAND TREE POPPY	native	
Dendromecon rigida	PAPAVERACEAE	BUSH POPPY	native	
Deschampsia atropurpurea	POACEAE	MOUNTAIN HAIRGRASS	native	
Deschampsia cespitosa	POACEAE	TUFTED HAIRGRASS	native	
Deschampsia cespitosa subsp. cespitosa	POACEAE	HAIRGRASS	native	
Deschampsia cespitosa subsp. holciformis	POACEAE	HAIRGRASS	native	
Deschampsia danthonioides	POACEAE	ANNUAL HAIRGRASS	native	
Deschampsia elongata	POACEAE	SLENDER HAIRGRASS	native	
Descurainia californica	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia incana	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia incisa	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia incisa subsp. filipes	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia incisa subsp. incisa	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia obtusa	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia obtusa subsp. adenophora	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia paradisa	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia paradisa subsp. paradisa	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia pinnata	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia pinnata subsp. glabra	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia pinnata subsp. halictorum	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia pinnata subsp. intermedia	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia pinnata subsp. menziesii	BRASSICACEAE	TANSY MUSTARD	native	
Descurainia sophia	BRASSICACEAE	TANSY MUSTARD	naturalized	
Desmazeria rigida	POACEAE		naturalized	
Dianthus armeria	CARYOPHYLLACEAE	CARNATION; PINK	naturalized	
Dianthus armeria subsp. armeria	CARYOPHYLLACEAE	DEPTFORD PINK; GRASS PINK	naturalized	
Dianthus barbatus	CARYOPHYLLACEAE	CARNATION; PINK	naturalized	
Dianthus barbatus subsp. barbatus	CARYOPHYLLACEAE	SWEET WILLIAM	naturalized	
Dianthus deltoides	CARYOPHYLLACEAE	CARNATION; PINK	naturalized	
Dianthus deltoides subsp. deltoides	CARYOPHYLLACEAE	MAIDEN PINK; MEADOW PINK	naturalized	
Dicentra formosa	PAPAVERACEAE	BLEEDING HEART	native	
Dicentra nevadensis	PAPAVERACEAE	TULARE COUNTY BLEEDING HEART	native	
Dicentra pauciflora	PAPAVERACEAE		native	
Dicentra uniflora	PAPAVERACEAE	STEER'S HEAD	native	
Dichelostemma capitatum	THEMIDACEAE	BLUE DICKS	native	
Dichelostemma capitatum subsp. capitatum	THEMIDACEAE		native	
Dichelostemma capitatum subsp. pauciflorum	THEMIDACEAE		native	
Dichelostemma congestum	THEMIDACEAE	OOKOW	native	
Dichelostemma ida-maia	THEMIDACEAE	FIRECRACKER FLOWER	native	
Dichelostemma multiflorum	THEMIDACEAE	WILD HYACINTH	native	
Dichelostemma volubile	THEMIDACEAE	SNAKE LILY; TWINING BRODIAEA	native	
Dichondra donelliana	CONVOLVULACEAE		native	
Dichondra micrantha	CONVOLVULACEAE		naturalized	
Dichondra occidentalis	CONVOLVULACEAE	WESTERN DICHONDRA	native	
Dicoria canescens	ASTERACEAE		native	
Dieteria asteroides	ASTERACEAE		native	
Dieteria asteroides var. asteroides	ASTERACEAE		native	
Dieteria asteroides var. lagunensis	ASTERACEAE		native	
Dieteria canescens	ASTERACEAE		native	
Dieteria canescens var. canescens	ASTERACEAE		native	
Dieteria canescens var. incana	ASTERACEAE		native	
Dieteria canescens var. leucanthemifolia	ASTERACEAE		native	
Dieteria canescens var. shastensis	ASTERACEAE		native	
Dieteria canescens var. ziegleri	ASTERACEAE		native	
Digitalis purpurea	PLANTAGINACEAE	FOXGLOVE	naturalized	
Digitaria californica	POACEAE		native	acceptance uncertain
Digitaria ischaemum	POACEAE		naturalized	
Digitaria sanguinalis	POACEAE		naturalized	
Dimeresia howellii	ASTERACEAE	DOUBLET	native	
Dimorphotheca sinuata	ASTERACEAE	AFRICAN DAISY; CAPE-MARIGOLD	naturalized	acceptance uncertain
Diodia teres	RUBIACEAE	POOR JOE; ROUGH BUTTONWEED	native	
Diospyros virginiana	EBENACEAE		naturalized	
Diospyros virginiana var. virginiana	EBENACEAE		naturalized	
Diplotaxis muralis	BRASSICACEAE	WALL ROCKET	naturalized	
Diplotaxis tenuifolia	BRASSICACEAE	WALL ROCKET	naturalized	
Dipogon lignosus	FABACEAE		naturalized	acceptance uncertain
Dipsacus fullonum	DIPSACACEAE	WILD TEASEL	naturalized	
Dipsacus sativus	DIPSACACEAE	FULLER'S TEASEL	naturalized	
Dirca occidentalis	THYMELAEACEAE	WESTERN LEATHERWOOD	native	
Dissanthelium californicum	POACEAE	CALIFORNIA DISSANTHELIUM	native	
Distichlis spicata	POACEAE	SALTGRASS	native	
Ditaxis californica	EUPHORBIACEAE	CALIFORNIA DITAXIS	native	
Ditaxis claryana	EUPHORBIACEAE	GLANDULAR DITAXIS	native	
Ditaxis lanceolata	EUPHORBIACEAE		native	
Ditaxis neomexicana	EUPHORBIACEAE		native	
Ditaxis serrata	EUPHORBIACEAE		native	
Dithyrea californica	BRASSICACEAE	SPECTACLE-POD	native	
Dithyrea maritima	BRASSICACEAE	BEACH SPECTACLE-POD	native	
Dittrichia graveolens	ASTERACEAE		naturalized	
Dodecahema leptoceras	POLYGONACEAE	SLENDER-HORNED SPINEFLOWER	native	
Dodecatheon alpinum	PRIMULACEAE	ALPINE SHOOTING STAR	native	
Dodecatheon clevelandii	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon clevelandii subsp. clevelandii	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon clevelandii subsp. insulare	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon clevelandii subsp. patulum	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon clevelandii subsp. sanctarum	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon conjugens	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon hendersonii	PRIMULACEAE	MOSQUITO BILLS; SAILOR CAPS	native	
Dodecatheon jeffreyi	PRIMULACEAE	SIERRA SHOOTING STAR	native	
Dodecatheon pulchellum	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon redolens	PRIMULACEAE	SHOOTING STAR	native	
Dodecatheon subalpinum	PRIMULACEAE	SHOOTING STAR	native	
Dolichos lignosus	FABACEAE		naturalized	acceptance uncertain
Dopatrium junceum	PLANTAGINACEAE		naturalized	
Downingia bacigalupii	CAMPANULACEAE		native	
Downingia bella	CAMPANULACEAE		native	
Downingia bicornuta	CAMPANULACEAE		native	
Downingia bicornuta var. bicornuta	CAMPANULACEAE		native	
Downingia bicornuta var. picta	CAMPANULACEAE		native	
Downingia concolor	CAMPANULACEAE		native	
Downingia concolor var. brevior	CAMPANULACEAE	CUYAMACA LAKE DOWNINGIA	native	
Downingia concolor var. concolor	CAMPANULACEAE		native	
Downingia cuspidata	CAMPANULACEAE		native	
Downingia elegans	CAMPANULACEAE		native	
Downingia insignis	CAMPANULACEAE		native	
Downingia laeta	CAMPANULACEAE		native	
Downingia montana	CAMPANULACEAE		native	
Downingia ornatissima	CAMPANULACEAE		native	
Downingia ornatissima var. eximia	CAMPANULACEAE		native	
Downingia ornatissima var. ornatissima	CAMPANULACEAE		native	
Downingia pulchella	CAMPANULACEAE		native	
Downingia pulcherrima	CAMPANULACEAE		native	
Downingia pusilla	CAMPANULACEAE		native	
Downingia willamettensis	CAMPANULACEAE		native	
Draba albertina	BRASSICACEAE		native	
Draba asterophora	BRASSICACEAE		native	
Draba asterophora var. asterophora	BRASSICACEAE	TAHOE DRABA	native	
Draba asterophora var. macrocarpa	BRASSICACEAE	CUP LAKE DRABA	native	
Draba aureola	BRASSICACEAE	GOLDEN DRABA	native	
Draba breweri	BRASSICACEAE		native	
Draba breweri var. breweri	BRASSICACEAE		native	
Draba breweri var. cana	BRASSICACEAE		native	
Draba californica	BRASSICACEAE	CALIFORNIA DRABA	native	
Draba carnosula	BRASSICACEAE	MOUNT EDDY DRABA	native	
Draba corrugata	BRASSICACEAE		native	
Draba corrugata var. corrugata	BRASSICACEAE		native	
Draba corrugata var. saxosa	BRASSICACEAE		native	
Draba cruciata	BRASSICACEAE	MINERAL KING DRABA	native	
Draba cuneifolia	BRASSICACEAE		native	
Draba densifolia	BRASSICACEAE		native	
Draba howellii	BRASSICACEAE	HOWELL'S DRABA	native	
Draba incrassata	BRASSICACEAE	SWEETWATER MOUNTAINS DRABA	native	
Draba lemmonii	BRASSICACEAE		native	
Draba lemmonii var. lemmonii	BRASSICACEAE		native	
Draba lonchocarpa	BRASSICACEAE		native	
Draba lonchocarpa var. lonchocarpa	BRASSICACEAE	SPEAR-FRUITED DRABA	native	
Draba monoensis	BRASSICACEAE	WHITE MOUNTAINS DRABA	native	
Draba nemorosa	BRASSICACEAE		naturalized	
Draba oligosperma	BRASSICACEAE		native	
Draba oligosperma var. oligosperma	BRASSICACEAE		native	
Draba paysonii	BRASSICACEAE		native	
Draba paysonii var. treleasei	BRASSICACEAE		native	
Draba praealta	BRASSICACEAE		native	
Draba pterosperma	BRASSICACEAE	WINGED-SEED DRABA	native	
Draba reptans	BRASSICACEAE		naturalized	
Draba sharsmithii	BRASSICACEAE	MOUNT WHITNEY DRABA	native	
Draba sierrae	BRASSICACEAE	SIERRA DRABA	native	
Draba subumbellata	BRASSICACEAE	WHITE MOUNTAINS CUSHION DRABA	native	
Draba verna	BRASSICACEAE		native	
Draperia systyla	BORAGINACEAE		native	
Drosanthemum floribundum	AIZOACEAE		naturalized	
Drosera anglica	DROSERACEAE	ENGLISH LONG-LEAVED SUNDEW	native	
Drosera rotundifolia	DROSERACEAE	ROUND-LEAVED SUNDEW	native	
Dryopteris arguta	DRYOPTERIDACEAE	WOOD FERN	native	
Dryopteris expansa	DRYOPTERIDACEAE	WOOD FERN	native	
Dryopteris filix-mas	DRYOPTERIDACEAE	MALE FERN	native	
Duchesnea indica	ROSACEAE	MOCK-STRAWBERRY	naturalized	
Dudleya abramsii	CRASSULACEAE		native	
Dudleya abramsii subsp. abramsii	CRASSULACEAE		native	
Dudleya abramsii subsp. affinis	CRASSULACEAE	SAN BERNARDINO MOUNTAINS DUDLEYA	native	
Dudleya abramsii subsp. bettinae	CRASSULACEAE	BETTY'S LIVEFOREVER; SAN LUIS OBISPO SERPENTINE DUDLEYA	native	
Dudleya abramsii subsp. calcicola	CRASSULACEAE		native	
Dudleya abramsii subsp. murina	CRASSULACEAE	MOUSE-LEAVED DUDLEYA; SAN LUIS OBISPO DUDLEYA	native	
Dudleya abramsii subsp. setchellii	CRASSULACEAE		native	
Dudleya arizonica	CRASSULACEAE		native	
Dudleya attenuata	CRASSULACEAE		native	
Dudleya attenuata subsp. attenuata	CRASSULACEAE		native	
Dudleya blochmaniae	CRASSULACEAE		native	
Dudleya blochmaniae subsp. blochmaniae	CRASSULACEAE	BLOCHMAN'S DUDLEYA	native	
Dudleya blochmaniae subsp. insularis	CRASSULACEAE	SANTA ROSA ISLAND DUDLEYA	native	
Dudleya brevifolia	CRASSULACEAE		native	
Dudleya caespitosa	CRASSULACEAE		native	
Dudleya candelabrum	CRASSULACEAE	CANDLEHOLDER DUDLEYA	native	
Dudleya cymosa	CRASSULACEAE		native	
Dudleya cymosa subsp. agourensis	CRASSULACEAE		native	
Dudleya cymosa subsp. costatifolia	CRASSULACEAE		native	
Dudleya cymosa subsp. crebrifolia	CRASSULACEAE	SAN GABRIEL RIVER DUDLEYA	native	
Dudleya cymosa subsp. cymosa	CRASSULACEAE		native	
Dudleya cymosa subsp. marcescens	CRASSULACEAE	MARCESCENT DUDLEYA; SANTA MONICA MOUNTAINS DUDLEYA	native	
Dudleya cymosa subsp. ovatifolia	CRASSULACEAE	SANTA MONICA MOUNTAINS DUDLEYA	native	
Dudleya cymosa subsp. paniculata	CRASSULACEAE		native	
Dudleya cymosa subsp. pumila	CRASSULACEAE		native	
Dudleya densiflora	CRASSULACEAE	SAN GABRIEL MOUNTAINS DUDLEYA	native	
Dudleya edulis	CRASSULACEAE		native	
Dudleya farinosa	CRASSULACEAE		native	
Dudleya gnoma	CRASSULACEAE		native	
Dudleya greenei	CRASSULACEAE	GREENE'S DUDLEYA	native	
Dudleya lanceolata	CRASSULACEAE		native	
Dudleya multicaulis	CRASSULACEAE	MANY-STEMMED DUDLEYA	native	
Dudleya nesiotica	CRASSULACEAE	SANTA CRUZ ISLAND DUDLEYA	native	
Dudleya palmeri	CRASSULACEAE		native	
Dudleya parva	CRASSULACEAE		native	
Dudleya pulverulenta	CRASSULACEAE		native	
Dudleya saxosa	CRASSULACEAE		native	
Dudleya saxosa subsp. aloides	CRASSULACEAE		native	
Dudleya saxosa subsp. saxosa	CRASSULACEAE	PANAMINT DUDLEYA	native	
Dudleya stolonifera	CRASSULACEAE	LAGUNA BEACH DUDLEYA	native	
Dudleya traskiae	CRASSULACEAE	SANTA BARBARA ISLAND DUDLEYA	native	
Dudleya variegata	CRASSULACEAE	VARIEGATED DUDLEYA	native	
Dudleya verityi	CRASSULACEAE	VERITY'S DUDLEYA	native	
Dudleya virens	CRASSULACEAE	BRIGHT GREEN DUDLEYA; GREEN LIVEFOREVER	native	
Dudleya virens subsp. hassei	CRASSULACEAE		native	
Dudleya virens subsp. insularis	CRASSULACEAE		native	
Dudleya virens subsp. virens	CRASSULACEAE		native	
Dudleya viscida	CRASSULACEAE	STICKY DUDLEYA; STICKY-LEAVED LIVEFOREVER	native	
Dulichium arundinaceum	CYPERACEAE	THREE-WAY SEDGE	native	
Dysphania ambrosioides	CHENOPODIACEAE		naturalized	
Dysphania anthelmintica	CHENOPODIACEAE		naturalized	
Dysphania botrys	CHENOPODIACEAE		naturalized	
Dysphania chilensis	CHENOPODIACEAE		naturalized	
Dysphania multifida	CHENOPODIACEAE		naturalized	
Dysphania pumilio	CHENOPODIACEAE		naturalized	
Dyssodia tenuiloba var. tenuiloba	ASTERACEAE		naturalized	acceptance uncertain
Eastwoodia elegans	ASTERACEAE	YELLOW MOCK ASTER	native	
Eatonella nivea	ASTERACEAE		native	
Echinocactus polycephalus	CACTACEAE	CLUSTERED BARREL CACTUS	native	
Echinocactus polycephalus var. polycephalus	CACTACEAE	CLUSTERED BARREL CACTUS	native	
Echinocereus engelmannii	CACTACEAE	HEDGEHOG CACTUS	native	
Echinocereus mojavensis	CACTACEAE		native	
Echinochloa colona	POACEAE		naturalized	
Echinochloa crus-galli	POACEAE		naturalized	
Echinochloa crus-galli subsp. spiralis	POACEAE		naturalized	
Echinochloa crus-pavonis	POACEAE		naturalized	
Echinochloa esculenta	POACEAE		naturalized	acceptance uncertain
Echinochloa muricata	POACEAE		naturalized	
Echinochloa oryzicola	POACEAE		naturalized	acceptance uncertain
Echinochloa oryzoides	POACEAE		naturalized	
Echinodorus berteroi	ALISMATACEAE	BURHEAD	native	
Echinomastus johnsonii	CACTACEAE		native	acceptance uncertain
Echinops sphaerocephalus	ASTERACEAE	GLOBE THISTLE	naturalized	
Echium candicans	BORAGINACEAE		naturalized	
Echium lusitanicum	BORAGINACEAE		naturalized	acceptance uncertain
Echium plantagineum	BORAGINACEAE		naturalized	
Eclipta prostrata	ASTERACEAE		native	
Egeria densa	HYDROCHARITACEAE	BRAZILIAN WATERWEED	naturalized	
Ehrendorferia chrysantha	PAPAVERACEAE		native	
Ehrendorferia ochroleuca	PAPAVERACEAE		native	
Ehrharta calycina	POACEAE	VELDT GRASS	naturalized	
Ehrharta erecta	POACEAE		naturalized	
Ehrharta longiflora	POACEAE		naturalized	
Eichhornia crassipes	PONTEDERIACEAE	WATER HYACINTH	naturalized	
Elaeagnus angustifolia	ELAEAGNACEAE	OLEASTER; RUSSIAN OLIVE	naturalized	
Elatine ambigua	ELATINACEAE	WATERWORT	naturalized	
Elatine brachysperma	ELATINACEAE	WATERWORT	native	
Elatine californica	ELATINACEAE	WATERWORT	native	
Elatine chilensis	ELATINACEAE	WATERWORT	native	
Elatine heterandra	ELATINACEAE	WATERWORT	native	
Elatine rubella	ELATINACEAE	WATERWORT	native	
Eleocharis acicularis	CYPERACEAE	SPIKERUSH	native	
Eleocharis acicularis var. occidentalis	CYPERACEAE		native	acceptance uncertain
Eleocharis atropurpurea	CYPERACEAE	SPIKERUSH	native	
Eleocharis bella	CYPERACEAE		native	acceptance uncertain
Eleocharis bolanderi	CYPERACEAE	SPIKERUSH	native	
Eleocharis coloradoensis	CYPERACEAE		native	
Eleocharis decumbens	CYPERACEAE		native	acceptance uncertain
Eleocharis engelmannii	CYPERACEAE		native	
Eleocharis flavescens	CYPERACEAE		native	
Eleocharis flavescens var. flavescens	CYPERACEAE		native	
Eleocharis geniculata	CYPERACEAE	SPIKERUSH	native	
Eleocharis macrostachya	CYPERACEAE	SPIKERUSH	native	
Eleocharis montevidensis	CYPERACEAE	SPIKERUSH	native	
Eleocharis obtusa	CYPERACEAE	SPIKERUSH	native	
Eleocharis obtusa var. obtusa	CYPERACEAE	SPIKERUSH	native	
Eleocharis ovata	CYPERACEAE		native	acceptance uncertain
Eleocharis pachycarpa	CYPERACEAE	SPIKERUSH	naturalized	
Eleocharis parishii	CYPERACEAE	SPIKERUSH	native	
Eleocharis parvula	CYPERACEAE	SMALL SPIKERUSH	native	
Eleocharis quadrangulata	CYPERACEAE	FOUR-ANGLED SPIKERUSH	naturalized	
Eleocharis quinqueflora	CYPERACEAE	SPIKERUSH	native	
Eleocharis radicans	CYPERACEAE	SPIKERUSH	native	
Eleocharis rostellata	CYPERACEAE	SPIKERUSH	native	
Eleocharis thermalis	CYPERACEAE	SPIKERUSH	native	
Eleocharis torticulmis	CYPERACEAE		native	
Eleusine indica	POACEAE	GOOSE GRASS	naturalized	
Eleusine tristachya	POACEAE		naturalized	
Elodea bifoliata	HYDROCHARITACEAE		native	
Elodea canadensis	HYDROCHARITACEAE	COMMON WATERWEED	native	
Elodea nuttallii	HYDROCHARITACEAE	NUTTALL'S WATERWEED	native	
Elymus arizonicus	POACEAE	ARIZONA WHEATGRASS	naturalized	
Elymus californicus	POACEAE	CALIFORNIA BOTTLEBRUSH GRASS	native	acceptance uncertain
Elymus canadensis	POACEAE	CANADIAN WILDRYE	naturalized	
Elymus elymoides	POACEAE	SQUIRRELTAIL	native	
Elymus elymoides subsp. brevifolius	POACEAE		native	
Elymus elymoides subsp. californicus	POACEAE		native	
Elymus elymoides subsp. elymoides	POACEAE		native	
Elymus elymoides subsp. hordeoides	POACEAE		native	
Elymus glaucus	POACEAE	BLUE WILDRYE	native	
Elymus glaucus subsp. glaucus	POACEAE		native	
Elymus glaucus subsp. jepsonii	POACEAE		native	
Elymus glaucus subsp. virescens	POACEAE		native	
Elymus lanceolatus	POACEAE		native	
Elymus lanceolatus subsp. lanceolatus	POACEAE	THICKSPIKE WHEATGRASS	native	
Elymus multisetus	POACEAE	BIG SQUIRRELTAIL	native	
Elymus scribneri	POACEAE	SCRIBNER'S WHEATGRASS	native	
Elymus sierrae	POACEAE		native	
Elymus stebbinsii	POACEAE		native	
Elymus stebbinsii subsp. septentrionalis	POACEAE		native	
Elymus stebbinsii subsp. stebbinsii	POACEAE		native	
Elymus trachycaulus	POACEAE	SLENDER WHEATGRASS	native	
Elymus trachycaulus subsp. subsecundus	POACEAE		native	
Elymus trachycaulus subsp. trachycaulus	POACEAE		native	
Elytrigia elongata	POACEAE	TALL WHEATGRASS	naturalized	
Elytrigia intermedia	POACEAE		naturalized	
Elytrigia intermedia subsp. intermedia	POACEAE	INTERMEDIATE WHEATGRASS	naturalized	
Elytrigia juncea	POACEAE		naturalized	
Elytrigia juncea subsp. boreo-atlantica	POACEAE		naturalized	
Elytrigia pontica	POACEAE		naturalized	
Elytrigia pontica subsp. pontica	POACEAE	TALL WHEATGRASS	naturalized	
Elytrigia repens	POACEAE	QUACKGRASS	naturalized	
Emex australis	POLYGONACEAE	THREE-CORNERED JACK	naturalized	
Emex spinosa	POLYGONACEAE	DEVIL'S THORN	naturalized	
Emmenanthe penduliflora	BORAGINACEAE	WHISPERING BELLS	native	
Emmenanthe penduliflora var. penduliflora	BORAGINACEAE		native	
Emmenanthe penduliflora var. rosea	BORAGINACEAE		native	
Empetrum nigrum	EMPETRACEAE	BLACK CROWBERRY	native	
Encelia actoni	ASTERACEAE		native	
Encelia californica	ASTERACEAE		native	
Encelia farinosa	ASTERACEAE	BRITTLEBUSH; INCIENSO	native	
Encelia frutescens	ASTERACEAE		native	
Encelia virginensis	ASTERACEAE		native	
Enceliopsis covillei	ASTERACEAE	PANAMINT DAISY	native	
Enceliopsis nudicaulis	ASTERACEAE	NAKED-STEMMED DAISY	native	
Enemion occidentale	RANUNCULACEAE		native	acceptance uncertain
Enemion stipitatum	RANUNCULACEAE		native	acceptance uncertain
Enneapogon desvauxii	POACEAE	NINE-AWNED PAPPUS GRASS	native	
Ephedra aspera	EPHEDRACEAE	EPHEDRA; MORMON TEA	native	
Ephedra californica	EPHEDRACEAE	DESERT TEA	native	
Ephedra foeminea	EPHEDRACEAE		naturalized	
Ephedra funerea	EPHEDRACEAE	DEATH VALLEY EPHEDRA	native	
Ephedra nevadensis	EPHEDRACEAE	EPHEDRA; MORMON TEA	native	
Ephedra trifurca	EPHEDRACEAE	EPHEDRA; MORMON TEA	native	
Ephedra viridis	EPHEDRACEAE	GREEN EPHEDRA	native	
Epilobium anagallidifolium	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium brachycarpum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium canum	ONAGRACEAE	CALIFORNIA FUCHSIA; ZAUSCHNERIA	native	
Epilobium canum subsp. canum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium canum subsp. garrettii	ONAGRACEAE		native	
Epilobium canum subsp. latifolium	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium ciliatum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium ciliatum subsp. ciliatum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium ciliatum subsp. glandulosum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium ciliatum subsp. watsonii	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium clavatum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium cleistogamum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium densiflorum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium foliosum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium glaberrimum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium glaberrimum subsp. fastigiatum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium glaberrimum subsp. glaberrimum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium hallianum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium hornemannii	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium hornemannii subsp. hornemannii	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium howellii	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium lactiflorum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium latifolium	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium leptophyllum	ONAGRACEAE	FIREWEED; WILLOW HERB	naturalized	
Epilobium luteum	ONAGRACEAE	YELLOW WILLOWHERB	native	
Epilobium minutum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium nivium	ONAGRACEAE	SNOW MOUNTAIN WILLOWHERB	native	
Epilobium obcordatum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium oreganum	ONAGRACEAE	OREGON FIREWEED	native	
Epilobium oregonense	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium pallidum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium palustre	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium pygmaeum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium rigidum	ONAGRACEAE	SISKIYOU MOUNTAINS WILLOWHERB	native	
Epilobium saximontanum	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epilobium septentrionale	ONAGRACEAE	HUMBOLDT COUNTY FUCHSIA	native	
Epilobium siskiyouense	ONAGRACEAE	SISKIYOU FIREWEED	native	
Epilobium torreyi	ONAGRACEAE	FIREWEED; WILLOW HERB	native	
Epipactis gigantea	ORCHIDACEAE	STREAM ORCHID	native	
Epipactis helleborine	ORCHIDACEAE		naturalized	
Equisetum arvense	EQUISETACEAE	COMMON HORSETAIL	native	
Equisetum hyemale	EQUISETACEAE	HORSETAIL; SCOURING RUSH	native	
Equisetum hyemale subsp. affine	EQUISETACEAE	COMMON SCOURING RUSH	native	
Equisetum laevigatum	EQUISETACEAE	SMOOTH SCOURING RUSH	native	
Equisetum palustre	EQUISETACEAE	MARSH HORSETAIL	native	
Equisetum telmateia	EQUISETACEAE	HORSETAIL; SCOURING RUSH	native	
Equisetum telmateia subsp. braunii	EQUISETACEAE	GIANT HORSETAIL	native	
Eragrostis barrelieri	POACEAE	LOVEGRASS	naturalized	
Eragrostis cilianensis	POACEAE	STINKGRASS	naturalized	
Eragrostis curvula	POACEAE	LOVEGRASS	naturalized	
Eragrostis curvula var. conferta	POACEAE		naturalized	acceptance uncertain
Eragrostis curvula var. curvula	POACEAE	WEEPING LOVEGRASS	naturalized	acceptance uncertain
Eragrostis hypnoides	POACEAE	LOVEGRASS	native	
Eragrostis lehmanniana	POACEAE	LEHMANN LOVEGRASS	naturalized	
Eragrostis lutescens	POACEAE	LOVEGRASS	native	
Eragrostis mexicana	POACEAE	LOVEGRASS	native	
Eragrostis mexicana subsp. mexicana	POACEAE	LOVEGRASS	native	
Eragrostis mexicana subsp. virescens	POACEAE	LOVEGRASS	native	
Eragrostis minor	POACEAE	LOVEGRASS	naturalized	
Eragrostis pectinacea	POACEAE	LOVEGRASS	native	
Eragrostis pectinacea var. miserrima	POACEAE	LOVEGRASS	native	
Eragrostis pectinacea var. pectinacea	POACEAE	LOVEGRASS	native	
Eragrostis pilosa	POACEAE	LOVEGRASS	native	
Eragrostis pilosa var. pilosa	POACEAE	LOVEGRASS	native	
Eremalche exilis	MALVACEAE		native	
Eremalche parryi	MALVACEAE		native	
Eremalche parryi subsp. kernensis	MALVACEAE	KERN MALLOW	native	
Eremalche parryi subsp. parryi	MALVACEAE		native	
Eremalche rotundifolia	MALVACEAE	DESERT FIVE-SPOT	native	
Eremogone aculeata	CARYOPHYLLACEAE		native	
Eremogone cliftonii	CARYOPHYLLACEAE		native	
Eremogone congesta	CARYOPHYLLACEAE		native	
Eremogone congesta var. charlestonensis	CARYOPHYLLACEAE		native	
Eremogone congesta var. congesta	CARYOPHYLLACEAE		native	
Eremogone congesta var. crassula	CARYOPHYLLACEAE		native	
Eremogone congesta var. simulans	CARYOPHYLLACEAE		native	
Eremogone congesta var. subcongesta	CARYOPHYLLACEAE		native	
Eremogone congesta var. suffrutescens	CARYOPHYLLACEAE		native	
Eremogone ferrisiae	CARYOPHYLLACEAE		native	
Eremogone kingii	CARYOPHYLLACEAE		native	
Eremogone kingii var. glabrescens	CARYOPHYLLACEAE		native	
Eremogone macradenia	CARYOPHYLLACEAE		native	
Eremogone macradenia var. arcuifolia	CARYOPHYLLACEAE		native	
Eremogone macradenia var. macradenia	CARYOPHYLLACEAE		native	
Eremogone ursina	CARYOPHYLLACEAE		native	
Eriastrum abramsii	POLEMONIACEAE		native	
Eriastrum brandegeeae	POLEMONIACEAE	BRANDEGEE'S ERIASTRUM	native	
Eriastrum densifolium	POLEMONIACEAE		native	
Eriastrum densifolium subsp. austromontanum	POLEMONIACEAE		native	
Eriastrum densifolium subsp. densifolium	POLEMONIACEAE		native	
Eriastrum densifolium subsp. elongatum	POLEMONIACEAE		native	
Eriastrum densifolium subsp. mohavense	POLEMONIACEAE		native	
Eriastrum densifolium subsp. sanctorum	POLEMONIACEAE	SANTA ANA RIVER WOOLLYSTAR	native	
Eriastrum diffusum	POLEMONIACEAE		native	
Eriastrum eremicum	POLEMONIACEAE		native	
Eriastrum eremicum subsp. eremicum	POLEMONIACEAE		native	
Eriastrum filifolium	POLEMONIACEAE		native	
Eriastrum hooveri	POLEMONIACEAE	HOOVER'S ERIASTRUM	native	
Eriastrum luteum	POLEMONIACEAE	YELLOW-FLOWERED ERIASTRUM	native	
Eriastrum pluriflorum	POLEMONIACEAE	MANY-FLOWERED ERIASTRUM	native	
Eriastrum sapphirinum	POLEMONIACEAE		native	
Eriastrum sparsiflorum	POLEMONIACEAE		native	
Eriastrum virgatum	POLEMONIACEAE	VIRGATE ERIASTRUM	native	
Eriastrum wilcoxii	POLEMONIACEAE		native	
Erica lusitanica	ERICACEAE	HEATH	naturalized	
Ericameria albida	ASTERACEAE		native	
Ericameria arborescens	ASTERACEAE	GOLDEN-FLEECE	native	
Ericameria bloomeri	ASTERACEAE	GOLDENBUSH	native	
Ericameria brachylepis	ASTERACEAE	BOUNDARY GOLDENBUSH	native	
Ericameria cooperi	ASTERACEAE	GOLDENBUSH	native	
Ericameria cooperi var. cooperi	ASTERACEAE	GOLDENBUSH	native	
Ericameria cuneata	ASTERACEAE	GOLDENBUSH	native	
Ericameria cuneata var. cuneata	ASTERACEAE	GOLDENBUSH	native	
Ericameria cuneata var. macrocephala	ASTERACEAE	LAGUNA MOUNTAIN GOLDENBUSH	native	
Ericameria cuneata var. spathulata	ASTERACEAE	GOLDENBUSH	native	
Ericameria discoidea	ASTERACEAE	GOLDENBUSH	native	
Ericameria discoidea var. discoidea	ASTERACEAE		native	acceptance uncertain
Ericameria ericoides	ASTERACEAE	GOLDENBUSH	native	
Ericameria fasciculata	ASTERACEAE	EASTWOOD'S GOLDENBUSH	native	
Ericameria gilmanii	ASTERACEAE	GILMAN'S ERICAMERIA	native	
Ericameria greenei	ASTERACEAE	GOLDENBUSH	native	
Ericameria laricifolia	ASTERACEAE	TURPENTINE-BRUSH	native	
Ericameria linearifolia	ASTERACEAE	INTERIOR GOLDENBUSH	native	
Ericameria nana	ASTERACEAE	GOLDENBUSH	native	
Ericameria nauseosa	ASTERACEAE		native	
Ericameria nauseosa var. bernardina	ASTERACEAE		native	
Ericameria nauseosa var. ceruminosa	ASTERACEAE		native	
Ericameria nauseosa var. hololeuca	ASTERACEAE		native	
Ericameria nauseosa var. leiosperma	ASTERACEAE		native	
Ericameria nauseosa var. oreophila	ASTERACEAE		native	
Ericameria nauseosa var. speciosa	ASTERACEAE		native	
Ericameria nauseosa var. washoensis	ASTERACEAE		native	
Ericameria ophitidis	ASTERACEAE	SERPENTINE GOLDENBUSH	native	
Ericameria palmeri	ASTERACEAE	GOLDENBUSH	native	
Ericameria palmeri var. pachylepis	ASTERACEAE	GOLDENBUSH	native	
Ericameria palmeri var. palmeri	ASTERACEAE	PALMER'S GOLDENBUSH	native	
Ericameria paniculata	ASTERACEAE		native	
Ericameria parishii	ASTERACEAE	GOLDENBUSH	native	
Ericameria parishii var. parishii	ASTERACEAE	GOLDENBUSH	native	
Ericameria parryi	ASTERACEAE		native	
Ericameria parryi var. aspera	ASTERACEAE		native	
Ericameria parryi var. imula	ASTERACEAE		native	
Ericameria parryi var. latior	ASTERACEAE		native	
Ericameria parryi var. monocephala	ASTERACEAE		native	
Ericameria parryi var. nevadensis	ASTERACEAE		native	
Ericameria parryi var. vulcanica	ASTERACEAE		native	
Ericameria pinifolia	ASTERACEAE	PINE-BUSH	native	
Ericameria suffruticosa	ASTERACEAE	GOLDENBUSH	native	
Ericameria teretifolia	ASTERACEAE		native	
Erigeron acris	ASTERACEAE		native	
Erigeron acris var. kamtschaticus	ASTERACEAE		native	
Erigeron aequifolius	ASTERACEAE	HALL'S DAISY	native	
Erigeron algidus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron aliceae	ASTERACEAE	FLEABANE DAISY	native	
Erigeron annuus	ASTERACEAE	FLEABANE DAISY	naturalized	
Erigeron aphanactis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron aphanactis var. aphanactis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron aphanactis var. congestus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron argentatus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron barbellulatus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron biolettii	ASTERACEAE	FLEABANE DAISY	native	
Erigeron blochmaniae	ASTERACEAE	BLOCHMAN'S LEAFY DAISY	native	
Erigeron bloomeri	ASTERACEAE	FLEABANE DAISY	native	
Erigeron bloomeri var. bloomeri	ASTERACEAE	FLEABANE DAISY	native	
Erigeron bloomeri var. nudatus	ASTERACEAE	WALDO DAISY	native	
Erigeron breweri	ASTERACEAE	FLEABANE DAISY	native	
Erigeron breweri var. bisanctus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron breweri var. breweri	ASTERACEAE	FLEABANE DAISY	native	
Erigeron breweri var. covillei	ASTERACEAE	FLEABANE DAISY	native	
Erigeron breweri var. jacinteus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron breweri var. porphyreticus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron calvus	ASTERACEAE	BALD DAISY	native	
Erigeron cervinus	ASTERACEAE	SISKIYOU DAISY	native	
Erigeron chrysopsidis	ASTERACEAE		native	
Erigeron chrysopsidis var. austiniae	ASTERACEAE		native	
Erigeron clokeyi	ASTERACEAE	FLEABANE DAISY	native	
Erigeron clokeyi var. pinzliae	ASTERACEAE		native	
Erigeron compactus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron compositus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron concinnus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron concinnus var. concinnus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron concinnus var. condensatus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron coulteri	ASTERACEAE	FLEABANE DAISY	native	
Erigeron divergens	ASTERACEAE	FLEABANE DAISY	native	
Erigeron eatonii	ASTERACEAE	FLEABANE DAISY	native	
Erigeron eatonii var. nevadincola	ASTERACEAE	FLEABANE DAISY	native	
Erigeron eatonii var. plantagineus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron eatonii var. sonnei	ASTERACEAE	FLEABANE DAISY	native	
Erigeron elegantulus	ASTERACEAE	VOLCANIC DAISY	native	
Erigeron elmeri	ASTERACEAE	FLEABANE DAISY	native	
Erigeron filifolius	ASTERACEAE	FLEABANE DAISY	native	
Erigeron foliosus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron foliosus var. confinis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron foliosus var. foliosus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron foliosus var. franciscensis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron foliosus var. hartwegii	ASTERACEAE	FLEABANE DAISY	native	
Erigeron foliosus var. mendocinus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron glacialis	ASTERACEAE		native	
Erigeron glacialis var. glacialis	ASTERACEAE		native	
Erigeron glacialis var. hirsutus	ASTERACEAE		native	
Erigeron glaucus	ASTERACEAE	SEASIDE DAISY	native	
Erigeron greenei	ASTERACEAE		native	
Erigeron inornatus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron inornatus var. calidipetris	ASTERACEAE	FLEABANE DAISY	native	
Erigeron inornatus var. inornatus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron inornatus var. keilii	ASTERACEAE	FLEABANE DAISY	native	
Erigeron karvinskianus	ASTERACEAE	FLEABANE DAISY	naturalized	
Erigeron klamathensis	ASTERACEAE		native	
Erigeron lassenianus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron lassenianus var. deficiens	ASTERACEAE	FLEABANE DAISY	native	
Erigeron lassenianus var. lassenianus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron linearis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron lobatus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron lonchophyllus	ASTERACEAE		native	
Erigeron maniopotamicus	ASTERACEAE		native	
Erigeron mariposanus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron miser	ASTERACEAE	STARVED DAISY	native	
Erigeron multiceps	ASTERACEAE	KERN RIVER DAISY	native	
Erigeron nivalis	ASTERACEAE		native	
Erigeron parishii	ASTERACEAE	PARISH'S DAISY	native	
Erigeron petrophilus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron petrophilus var. petrophilus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron petrophilus var. sierrensis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron petrophilus var. viscidulus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron philadelphicus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron philadelphicus var. philadelphicus	ASTERACEAE		native	
Erigeron pumilus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron pumilus var. gracilior	ASTERACEAE		native	
Erigeron pumilus var. intermedius	ASTERACEAE	FLEABANE DAISY	native	
Erigeron pygmaeus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron reductus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron reductus var. angustatus	ASTERACEAE	FLEABANE DAISY	native	
Erigeron reductus var. reductus	ASTERACEAE	CALIFORNIA RAYLESS DAISY	native	
Erigeron robustior	ASTERACEAE		native	
Erigeron sanctarum	ASTERACEAE	SAINTS' DAISY	native	
Erigeron serpentinus	ASTERACEAE	SERPENTINE DAISY	native	
Erigeron strigosus	ASTERACEAE	FLEABANE DAISY	naturalized	
Erigeron supplex	ASTERACEAE	SUPPLE DAISY	native	
Erigeron tener	ASTERACEAE	FLEABANE DAISY	native	
Erigeron uncialis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron uncialis var. uncialis	ASTERACEAE	LIMESTONE DAISY	native	
Erigeron utahensis	ASTERACEAE	FLEABANE DAISY	native	
Erigeron vagus	ASTERACEAE	FLEABANE DAISY	native	
Eriobotrya japonica	ROSACEAE		naturalized	acceptance uncertain
Eriochloa acuminata	POACEAE		native	
Eriochloa acuminata var. acuminata	POACEAE		native	
Eriochloa aristata	POACEAE		native	
Eriochloa aristata var. aristata	POACEAE	AWNED CUP GRASS	native	acceptance uncertain
Eriochloa contracta	POACEAE		naturalized	
Eriodictyon altissimum	BORAGINACEAE	INDIAN KNOB MOUNTAINBALM	native	
Eriodictyon angustifolium	BORAGINACEAE	NARROW-LEAVED YERBA SANTA	native	
Eriodictyon californicum	BORAGINACEAE	YERBA SANTA	native	
Eriodictyon capitatum	BORAGINACEAE	LOMPOC YERBA SANTA	native	
Eriodictyon crassifolium	BORAGINACEAE	YERBA SANTA	native	
Eriodictyon crassifolium var. crassifolium	BORAGINACEAE	YERBA SANTA	native	
Eriodictyon crassifolium var. nigrescens	BORAGINACEAE	YERBA SANTA	native	
Eriodictyon tomentosum	BORAGINACEAE	YERBA SANTA	native	
Eriodictyon traskiae	BORAGINACEAE	TRASK'S YERBA SANTA	native	
Eriodictyon trichocalyx	BORAGINACEAE	YERBA SANTA	native	
Eriodictyon trichocalyx var. lanatum	BORAGINACEAE	YERBA SANTA	native	
Eriodictyon trichocalyx var. trichocalyx	BORAGINACEAE	YERBA SANTA	native	
Eriogonum alpinum	POLYGONACEAE	TRINITY BUCKWHEAT	native	
Eriogonum ampullaceum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum angulosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum apiculatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum apiculatum var. apiculatum	POLYGONACEAE		native	
Eriogonum apricum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum apricum var. apricum	POLYGONACEAE	IONE BUCKWHEAT	native	
Eriogonum apricum var. prostratum	POLYGONACEAE	IRISH HILL BUCKWHEAT	native	
Eriogonum arborescens	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum argillosum	POLYGONACEAE	CLAY-LOVING BUCKWHEAT	native	
Eriogonum baileyi	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum baileyi var. baileyi	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum baileyi var. praebens	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum bifurcatum	POLYGONACEAE	FORKED BUCKWHEAT	native	
Eriogonum brachyanthum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum brachypodum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum breedlovei	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum breedlovei var. breedlovei	POLYGONACEAE	BREEDLOVE'S BUCKWHEAT	native	
Eriogonum breedlovei var. shevockii	POLYGONACEAE	THE NEEDLES BUCKWHEAT	native	
Eriogonum butterworthianum	POLYGONACEAE	BUTTERWORTH'S BUCKWHEAT	native	
Eriogonum caespitosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum callistum	POLYGONACEAE		native	
Eriogonum cedrorum	POLYGONACEAE		native	
Eriogonum cernuum	POLYGONACEAE	NODDING BUCKWHEAT	native	
Eriogonum cinereum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum cithariforme	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum cithariforme var. agninum	POLYGONACEAE		native	
Eriogonum cithariforme var. cithariforme	POLYGONACEAE		native	
Eriogonum clavatum	POLYGONACEAE		native	
Eriogonum collinum	POLYGONACEAE		native	
Eriogonum compositum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum compositum var. compositum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum congdonii	POLYGONACEAE	CONGDON'S BUCKWHEAT	native	
Eriogonum contiguum	POLYGONACEAE	ANNUAL DESERT TRUMPET	native	
Eriogonum covilleanum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum crocatum	POLYGONACEAE	CONEJO BUCKWHEAT	native	
Eriogonum crosbyae	POLYGONACEAE		native	
Eriogonum dasyanthemum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum davidsonii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum deflexum	POLYGONACEAE	FLAT-TOPPED BUCKWHEAT	native	
Eriogonum deflexum var. baratum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum deflexum var. deflexum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum deflexum var. nevadense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum deserticola	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum diclinum	POLYGONACEAE	JAYNE'S CANYON BUCKWHEAT	native	
Eriogonum douglasii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum douglasii var. meridionale	POLYGONACEAE		native	
Eriogonum eastwoodianum	POLYGONACEAE	EASTWOOD'S BUCKWHEAT	native	
Eriogonum elatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum elatum var. elatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum elatum var. villosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum elegans	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum elongatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum elongatum var. elongatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum eremicola	POLYGONACEAE	WILD ROSE CANYON BUCKWHEAT	native	
Eriogonum esmeraldense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum esmeraldense var. esmeraldense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum evanidum	POLYGONACEAE		native	
Eriogonum exaltatum	POLYGONACEAE		native	
Eriogonum fasciculatum	POLYGONACEAE	CALIFORNIA BUCKWHEAT	native	
Eriogonum fasciculatum var. fasciculatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum fasciculatum var. flavoviride	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum fasciculatum var. foliolosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum fasciculatum var. polifolium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum giganteum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum giganteum var. compactum	POLYGONACEAE	SANTA BARBARA ISLAND BUCKWHEAT	native	
Eriogonum giganteum var. formosum	POLYGONACEAE	SAN CLEMENTE ISLAND BUCKWHEAT	native	
Eriogonum giganteum var. giganteum	POLYGONACEAE	SANTA CATALINA ISLAND BUCKWHEAT	native	
Eriogonum gilmanii	POLYGONACEAE	GILMAN'S BUCKWHEAT	native	
Eriogonum glandulosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum gossypinum	POLYGONACEAE	COTTONY BUCKWHEAT	native	
Eriogonum gracile	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum gracile var. gracile	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum gracile var. incultum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum gracilipes	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum gracillimum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum grande	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum grande var. grande	POLYGONACEAE	ISLAND BUCKWHEAT	native	
Eriogonum grande var. rubescens	POLYGONACEAE	SAN MIGUEL ISLAND BUCKWHEAT	native	
Eriogonum grande var. timorum	POLYGONACEAE	SAN NICOLAS ISLAND BUCKWHEAT	native	
Eriogonum heermannii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum heermannii var. argense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum heermannii var. floccosum	POLYGONACEAE	CLARK MOUNTAIN BUCKWHEAT	native	
Eriogonum heermannii var. heermannii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum heermannii var. humilius	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum heermannii var. occidentale	POLYGONACEAE	WESTERN HEERMANN'S BUCKWHEAT	native	
Eriogonum heermannii var. sulcatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum heracleoides	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum heracleoides var. heracleoides	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum hirtellum	POLYGONACEAE	KLAMATH MOUNTAIN BUCKWHEAT	native	
Eriogonum hirtiflorum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum hoffmannii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum hoffmannii var. hoffmannii	POLYGONACEAE	HOFFMANN'S BUCKWHEAT	native	
Eriogonum hoffmannii var. robustius	POLYGONACEAE	ROBUST HOFFMANN'S BUCKWHEAT	native	
Eriogonum hookeri	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum incanum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum inerme	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum inerme var. hispidulum	POLYGONACEAE		native	
Eriogonum inerme var. inerme	POLYGONACEAE		native	
Eriogonum inflatum	POLYGONACEAE	DESERT TRUMPET	native	
Eriogonum intrafractum	POLYGONACEAE	JOINTED BUCKWHEAT	native	
Eriogonum kelloggii	POLYGONACEAE	KELLOGG'S BUCKWHEAT	native	
Eriogonum kennedyi	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum kennedyi var. alpigenum	POLYGONACEAE	SOUTHERN ALPINE BUCKWHEAT	native	
Eriogonum kennedyi var. austromontanum	POLYGONACEAE	SOUTHERN MOUNTAIN BUCKWHEAT	native	
Eriogonum kennedyi var. kennedyi	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum kennedyi var. pinicola	POLYGONACEAE	KERN BUCKWHEAT	native	
Eriogonum kennedyi var. purpusii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum latens	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum latifolium	POLYGONACEAE	COAST BUCKWHEAT	native	
Eriogonum libertini	POLYGONACEAE	DUBAKELLA MOUNTAIN BUCKWHEAT	native	
Eriogonum lobbii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum luteolum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum luteolum var. caninum	POLYGONACEAE	TIBURON BUCKWHEAT	native	
Eriogonum luteolum var. luteolum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum luteolum var. pedunculatum	POLYGONACEAE		native	
Eriogonum luteolum var. saltuarium	POLYGONACEAE		native	
Eriogonum maculatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum marifolium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum marifolium var. cupulatum	POLYGONACEAE		native	
Eriogonum marifolium var. marifolium	POLYGONACEAE		native	
Eriogonum mensicola	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum microthecum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum microthecum var. alpinum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum microthecum var. ambiguum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum microthecum var. corymbosoides	POLYGONACEAE	SAN BERNARDINO BUCKWHEAT	native	
Eriogonum microthecum var. johnstonii	POLYGONACEAE	JOHNSTON'S BUCKWHEAT	native	
Eriogonum microthecum var. lacus-ursi	POLYGONACEAE		native	
Eriogonum microthecum var. lapidicola	POLYGONACEAE	INYO MOUNTAINS BUCKWHEAT	native	
Eriogonum microthecum var. laxiflorum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum microthecum var. panamintense	POLYGONACEAE	PANAMINT MOUNTAINS BUCKWHEAT	native	
Eriogonum microthecum var. schoolcraftii	POLYGONACEAE		native	
Eriogonum microthecum var. simpsonii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum mohavense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum molestum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nervulosum	POLYGONACEAE	SNOW MOUNTAIN BUCKWHEAT	native	
Eriogonum nidularium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nortonii	POLYGONACEAE	PINNACLES BUCKWHEAT	native	
Eriogonum nudum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. auriculatum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. decurrens	POLYGONACEAE	BEN LOMOND BUCKWHEAT	native	
Eriogonum nudum var. deductum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. indictum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. murinum	POLYGONACEAE	MOUSE BUCKWHEAT	native	
Eriogonum nudum var. nudum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. oblongifolium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. paralinum	POLYGONACEAE	DEL NORTE BUCKWHEAT	native	
Eriogonum nudum var. pauciflorum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. psychicola	POLYGONACEAE		native	
Eriogonum nudum var. pubiflorum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. regirivum	POLYGONACEAE	KINGS RIVER BUCKWHEAT	native	
Eriogonum nudum var. scapigerum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nudum var. westonii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nummulare	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum nutans	POLYGONACEAE	NODDING BUCKWHEAT	native	
Eriogonum nutans var. nutans	POLYGONACEAE		native	
Eriogonum ochrocephalum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ochrocephalum var. ochrocephalum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ordii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ovalifolium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. caelestinum	POLYGONACEAE		native	
Eriogonum ovalifolium var. depressum	POLYGONACEAE		native	
Eriogonum ovalifolium var. eximium	POLYGONACEAE	BROWN-MARGINED BUCKWHEAT	native	
Eriogonum ovalifolium var. monarchense	POLYGONACEAE		native	
Eriogonum ovalifolium var. nivale	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. ovalifolium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. purpureum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. vineum	POLYGONACEAE	CUSHENBURY BUCKWHEAT	native	
Eriogonum palmerianum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum panamintense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum parishii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum parvifolium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum pendulum	POLYGONACEAE	WALDO BUCKWHEAT	native	
Eriogonum plumatella	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum polypodum	POLYGONACEAE	TULARE COUNTY BUCKWHEAT	native	
Eriogonum prattenianum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum prattenianum var. avium	POLYGONACEAE	KETTLE DOME BUCKWHEAT	native	
Eriogonum prattenianum var. prattenianum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum prociduum	POLYGONACEAE	PROSTRATE BUCKWHEAT	native	
Eriogonum prociduum var. prociduum	POLYGONACEAE		native	
Eriogonum pusillum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum pyrolifolium	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum pyrolifolium var. coryphaeum	POLYGONACEAE		native	
Eriogonum pyrolifolium var. pyrolifolium	POLYGONACEAE		native	
Eriogonum reniforme	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum rixfordii	POLYGONACEAE	RIXFORD'S BUCKWHEAT	native	
Eriogonum rosense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum rosense var. rosense	POLYGONACEAE		native	
Eriogonum roseum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum rupinum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum saxatile	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum shockleyi	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum siskiyouense	POLYGONACEAE	SISKIYOU BUCKWHEAT	native	
Eriogonum spectabile	POLYGONACEAE		native	
Eriogonum spergulinum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum spergulinum var. pratense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum spergulinum var. reddingianum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum spergulinum var. spergulinum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum sphaerocephalum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum sphaerocephalum var. halimioides	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum sphaerocephalum var. sphaerocephalum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum strictum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum strictum var. anserinum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum strictum var. greenei	POLYGONACEAE	GREENE'S BUCKWHEAT	native	
Eriogonum strictum var. proliferum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum temblorense	POLYGONACEAE	TEMBLOR BUCKWHEAT	native	
Eriogonum ternatum	POLYGONACEAE	TERNATE BUCKWHEAT	native	
Eriogonum thomasii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum thornei	POLYGONACEAE		native	
Eriogonum thurberi	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum trichopes	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum tripodum	POLYGONACEAE	TRIPOD BUCKWHEAT	native	
Eriogonum truncatum	POLYGONACEAE	MOUNT DIABLO BUCKWHEAT	native	
Eriogonum twisselmannii	POLYGONACEAE	TWISSELMANN'S BUCKWHEAT	native	
Eriogonum umbellatum	POLYGONACEAE	SULFUR FLOWER	native	
Eriogonum umbellatum var. ahartii	POLYGONACEAE		native	
Eriogonum umbellatum var. argus	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. bahiiforme	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. canifolium	POLYGONACEAE		native	
Eriogonum umbellatum var. chlorothamnus	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. covillei	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. dichrocephalum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. dumosum	POLYGONACEAE		native	
Eriogonum umbellatum var. furcosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. glaberrimum	POLYGONACEAE	GREEN BUCKWHEAT	native	
Eriogonum umbellatum var. goodmanii	POLYGONACEAE		native	
Eriogonum umbellatum var. humistratum	POLYGONACEAE	MOUNT EDDY BUCKWHEAT	native	
Eriogonum umbellatum var. juniporinum	POLYGONACEAE	JUNIPER BUCKWHEAT	native	
Eriogonum umbellatum var. lautum	POLYGONACEAE		native	
Eriogonum umbellatum var. minus	POLYGONACEAE	ALPINE SULFUR-FLOWERED BUCKWHEAT	native	
Eriogonum umbellatum var. modocense	POLYGONACEAE		native	
Eriogonum umbellatum var. munzii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. nelsoniorum	POLYGONACEAE		native	
Eriogonum umbellatum var. nevadense	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. smallianum	POLYGONACEAE		native	
Eriogonum umbellatum var. speciosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. subaridum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum umbellatum var. torreyanum	POLYGONACEAE	DONNER PASS BUCKWHEAT	native	
Eriogonum umbellatum var. versicolor	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ursinum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum ursinum var. erubescens	POLYGONACEAE		native	
Eriogonum ursinum var. ursinum	POLYGONACEAE		native	
Eriogonum vestitum	POLYGONACEAE	IDRIA BUCKWHEAT	native	
Eriogonum vimineum	POLYGONACEAE	WICKER BUCKWHEAT	native	
Eriogonum viridescens	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum wrightii	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum wrightii var. membranaceum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum wrightii var. nodosum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum wrightii var. olanchense	POLYGONACEAE	OLANCHA PEAK BUCKWHEAT	native	
Eriogonum wrightii var. subscaposum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum wrightii var. trachygonum	POLYGONACEAE	WILD BUCKWHEAT	native	
Eriogonum wrightii var. wrightii	POLYGONACEAE	WILD BUCKWHEAT	native	
Erioneuron pilosum	POACEAE	HAIRY ERIONEURON	native	
Erioneuron pulchellum	POACEAE	FLUFF GRASS	native	
Eriophorum crinigerum	CYPERACEAE		native	
Eriophorum gracile	CYPERACEAE	COTTON GRASS	native	
Eriophyllum ambiguum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum ambiguum var. ambiguum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum ambiguum var. paleaceum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum confertiflorum	ASTERACEAE	GOLDEN-YARROW	native	
Eriophyllum confertiflorum var. confertiflorum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum confertiflorum var. tanacetiflorum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum congdonii	ASTERACEAE	CONGDON'S WOOLLY SUNFLOWER	native	
Eriophyllum jepsonii	ASTERACEAE	JEPSON'S WOOLLY SUNFLOWER	native	
Eriophyllum lanatum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. achilleoides	ASTERACEAE		native	
Eriophyllum lanatum var. arachnoideum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. croceum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. grandiflorum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. hallii	ASTERACEAE	FORT TEJON WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. integrifolium	ASTERACEAE	OREGON SUNSHINE	native	
Eriophyllum lanatum var. lanceolatum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. obovatum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum lanosum	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum latilobum	ASTERACEAE	SAN MATEO WOOLLY SUNFLOWER	native	
Eriophyllum mohavense	ASTERACEAE	BARSTOW WOOLLY SUNFLOWER	native	
Eriophyllum multicaule	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum nubigenum	ASTERACEAE	YOSEMITE WOOLLY SUNFLOWER	native	
Eriophyllum pringlei	ASTERACEAE	WOOLLY SUNFLOWER	native	
Eriophyllum staechadifolium	ASTERACEAE	SEASIDE WOOLLY SUNFLOWER	native	
Eriophyllum wallacei	ASTERACEAE	WOOLLY SUNFLOWER	native	
Erodium botrys	GERANIACEAE	FILAREE; STORKSBILL	naturalized	
Erodium brachycarpum	GERANIACEAE	FILAREE; STORKSBILL	naturalized	
Erodium cicutarium	GERANIACEAE	FILAREE; STORKSBILL	naturalized	
Erodium malacoides	GERANIACEAE	FILAREE; STORKSBILL	naturalized	
Erodium moschatum	GERANIACEAE	FILAREE; STORKSBILL	naturalized	
Erodium texanum	GERANIACEAE	FILAREE; STORKSBILL	native	
Eruca vesicaria	BRASSICACEAE	GARDEN-ROCKET; SALAD-ROCKET	naturalized	
Eruca vesicaria subsp. sativa	BRASSICACEAE	GARDEN-ROCKET; SALAD-ROCKET	naturalized	
Erucastrum gallicum	BRASSICACEAE		naturalized	
Eryngium alismifolium	APIACEAE		native	
Eryngium aristulatum	APIACEAE		native	
Eryngium aristulatum var. aristulatum	APIACEAE		native	
Eryngium aristulatum var. hooveri	APIACEAE	HOOVER'S BUTTON-CELERY	native	
Eryngium aristulatum var. parishii	APIACEAE	SAN DIEGO BUTTON-CELERY	native	
Eryngium armatum	APIACEAE		native	
Eryngium articulatum	APIACEAE		native	
Eryngium castrense	APIACEAE		native	
Eryngium constancei	APIACEAE	LOCH LOMOND BUTTON-CELERY	native	
Eryngium mathiasiae	APIACEAE	MATHIAS' BUTTON-CELERY	native	
Eryngium pendletonense	APIACEAE		native	acceptance uncertain
Eryngium pinnatisectum	APIACEAE	TUOLUMNE BUTTON-CELERY	native	
Eryngium racemosum	APIACEAE	DELTA BUTTON-CELERY	native	
Eryngium spinosepalum	APIACEAE	SPINY-SEPALED BUTTON-CELERY	native	
Eryngium vaseyi	APIACEAE		native	
Erysimum ammophilum	BRASSICACEAE	COAST WALLFLOWER	native	
Erysimum capitatum	BRASSICACEAE	WESTERN WALLFLOWER	native	
Erysimum capitatum var. angustatum	BRASSICACEAE	CONTRA COSTA WALLFLOWER	native	
Erysimum capitatum var. capitatum	BRASSICACEAE	WALLFLOWER	native	
Erysimum capitatum var. lompocense	BRASSICACEAE	SAN LUIS OBISPO WALLFLOWER	native	
Erysimum capitatum var. perenne	BRASSICACEAE	WALLFLOWER	native	
Erysimum cheiranthoides	BRASSICACEAE	WORMSEED MUSTARD	naturalized	
Erysimum cheiri	BRASSICACEAE	WALLFLOWER	naturalized	
Erysimum franciscanum	BRASSICACEAE	SAN FRANCISCO WALLFLOWER	native	
Erysimum insulare	BRASSICACEAE	WALLFLOWER	native	
Erysimum insulare subsp. insulare	BRASSICACEAE	ISLAND WALLFLOWER	native	
Erysimum menziesii	BRASSICACEAE	WALLFLOWER	native	
Erysimum repandum	BRASSICACEAE	WALLFLOWER	naturalized	
Erysimum teretifolium	BRASSICACEAE	SANTA CRUZ WALLFLOWER	native	
Erythronium californicum	LILIACEAE	FAWN LILY	native	
Erythronium citrinum	LILIACEAE	LEMON-COLORED FAWN LILY	native	
Erythronium citrinum var. citrinum	LILIACEAE		native	
Erythronium citrinum var. roderickii	LILIACEAE		native	
Erythronium grandiflorum	LILIACEAE	GLACIER LILY	native	
Erythronium helenae	LILIACEAE	FAWN LILY	native	
Erythronium hendersonii	LILIACEAE	HENDERSON'S FAWN LILY	native	
Erythronium klamathense	LILIACEAE	KLAMATH FAWN LILY	native	
Erythronium multiscapideum	LILIACEAE	FAWN LILY	native	
Erythronium oregonum	LILIACEAE	FAWN LILY	native	
Erythronium pluriflorum	LILIACEAE	FAWN LILY	native	
Erythronium purpurascens	LILIACEAE	FAWN LILY	native	
Erythronium pusaterii	LILIACEAE	KAWEAH LAKES FAWN LILY	native	
Erythronium revolutum	LILIACEAE	FAWN LILY	native	
Erythronium taylorii	LILIACEAE		native	acceptance uncertain
Erythronium tuolumnense	LILIACEAE	TUOLUMNE FAWN LILY	native	
Eschscholzia caespitosa	PAPAVERACEAE		native	
Eschscholzia californica	PAPAVERACEAE	CALIFORNIA POPPY	native	
Eschscholzia glyptosperma	PAPAVERACEAE		native	
Eschscholzia hypecoides	PAPAVERACEAE	SAN BENITO POPPY	native	
Eschscholzia lemmonii	PAPAVERACEAE		native	
Eschscholzia lemmonii subsp. kernensis	PAPAVERACEAE	TEJON POPPY	native	
Eschscholzia lemmonii subsp. lemmonii	PAPAVERACEAE		native	
Eschscholzia lobbii	PAPAVERACEAE	FRYING PANS	native	
Eschscholzia minutiflora	PAPAVERACEAE		native	
Eschscholzia parishii	PAPAVERACEAE		native	
Eschscholzia ramosa	PAPAVERACEAE	ISLAND POPPY	native	
Eschscholzia rhombipetala	PAPAVERACEAE	DIAMOND-PETALED CALIFORNIA POPPY	native	
Eucalyptus camaldulensis	MYRTACEAE	RED GUM; RIVER RED GUM	naturalized	
Eucalyptus citriodora	MYRTACEAE	LEMON-SCENTED GUM	naturalized	
Eucalyptus cladocalyx	MYRTACEAE	SUGAR GUM	naturalized	
Eucalyptus conferruminata	MYRTACEAE		naturalized	
Eucalyptus globulus	MYRTACEAE	BLUE GUM	naturalized	
Eucalyptus polyanthemos	MYRTACEAE	RED BOX; SILVER DOLLAR GUM	naturalized	
Eucalyptus pulchella	MYRTACEAE		naturalized	
Eucalyptus sideroxylon	MYRTACEAE	RED IRON BARK	naturalized	
Eucalyptus tereticornis	MYRTACEAE	FOREST RED GUM	naturalized	
Eucalyptus viminalis	MYRTACEAE	MANNA GUM	naturalized	
Eucephalus breweri	ASTERACEAE		native	
Eucephalus engelmannii	ASTERACEAE		native	
Eucephalus glabratus	ASTERACEAE		native	
Eucephalus ledophyllus	ASTERACEAE		native	
Eucephalus ledophyllus var. covillei	ASTERACEAE		native	
Eucephalus tomentellus	ASTERACEAE		native	
Eucephalus vialis	ASTERACEAE		native	
Euchiton gymnocephalus	ASTERACEAE		naturalized	acceptance uncertain
Euchiton involucratus	ASTERACEAE		naturalized	acceptance uncertain
Euchiton sphaericus	ASTERACEAE		naturalized	acceptance uncertain
Euclidium syriacum	BRASSICACEAE		naturalized	
Eucnide rupestris	LOASACEAE	ROCK NETTLE	native	
Eucnide urens	LOASACEAE	ROCK NETTLE	native	
Eucrypta chrysanthemifolia	BORAGINACEAE		native	
Eucrypta chrysanthemifolia var. bipinnatifida	BORAGINACEAE		native	
Eucrypta chrysanthemifolia var. chrysanthemifolia	BORAGINACEAE		native	
Eucrypta micrantha	BORAGINACEAE		native	
Euonymus occidentalis	CELASTRACEAE	WESTERN BURNING BUSH	native	
Euonymus occidentalis var. occidentalis	CELASTRACEAE	BURNING BUSH	native	
Euonymus occidentalis var. parishii	CELASTRACEAE	BURNING BUSH	native	
Euphorbia crenulata	EUPHORBIACEAE	CHINESE CAPS	native	
Euphorbia davidii	EUPHORBIACEAE		naturalized	acceptance uncertain
Euphorbia dendroides	EUPHORBIACEAE		naturalized	
Euphorbia eriantha	EUPHORBIACEAE	BEETLE SPURGE	native	
Euphorbia esula	EUPHORBIACEAE	LEAFY SPURGE	naturalized	
Euphorbia exigua	EUPHORBIACEAE		naturalized	acceptance uncertain
Euphorbia exstipulata	EUPHORBIACEAE	SPURGE	native	
Euphorbia exstipulata var. exstipulata	EUPHORBIACEAE	CLARK MOUNTAIN SPURGE	native	
Euphorbia graminea	EUPHORBIACEAE		naturalized	acceptance uncertain
Euphorbia helioscopia	EUPHORBIACEAE	WARTWEED	naturalized	
Euphorbia hirta	EUPHORBIACEAE		naturalized	
Euphorbia incisa	EUPHORBIACEAE	MOJAVE SPURGE	native	
Euphorbia lathyris	EUPHORBIACEAE	CAPER SPURGE; GOPHER PLANT	naturalized	
Euphorbia misera	EUPHORBIACEAE	CLIFF SPURGE	native	
Euphorbia myrsinites	EUPHORBIACEAE		naturalized	acceptance uncertain
Euphorbia oblongata	EUPHORBIACEAE	SPURGE	naturalized	
Euphorbia palmeri	EUPHORBIACEAE	SPURGE	native	
Euphorbia peplus	EUPHORBIACEAE	PETTY SPURGE	naturalized	
Euphorbia rigida	EUPHORBIACEAE		naturalized	acceptance uncertain
Euphorbia serrata	EUPHORBIACEAE	SAW-TOOTHED SPURGE	naturalized	
Euphorbia spathulata	EUPHORBIACEAE	SPURGE	native	
Euphorbia terracina	EUPHORBIACEAE		naturalized	
Eurybia integrifolia	ASTERACEAE		native	
Eurybia merita	ASTERACEAE		native	
Eurybia radulina	ASTERACEAE		native	
Eustoma exaltatum	GENTIANACEAE	CATCHFLY GENTIAN	native	
Eustoma exaltatum subsp. exaltatum	GENTIANACEAE		native	
Euthamia occidentalis	ASTERACEAE	WESTERN GOLDENROD	native	
Fagonia laevis	ZYGOPHYLLACEAE		native	
Fagonia pachyacantha	ZYGOPHYLLACEAE		native	
Fallopia baldschuanica	POLYGONACEAE		naturalized	
Fallopia convolvulus	POLYGONACEAE		naturalized	
Fallopia japonica	POLYGONACEAE		naturalized	
Fallopia sachalinensis	POLYGONACEAE		naturalized	
Fallugia paradoxa	ROSACEAE	APACHE PLUME	native	
Fendlerella utahensis	PHILADELPHACEAE	YERBA DESIERTO	native	
Ferocactus cylindraceus	CACTACEAE	CALIFORNIA BARREL CACTUS	native	
Ferocactus cylindraceus var. lecontei	CACTACEAE	BARREL CACTUS; VISNAGA	native	
Ferocactus viridescens	CACTACEAE	COAST BARREL CACTUS	native	
Ferocactus viridescens var. viridescens	CACTACEAE		native	
Festuca arundinacea	POACEAE	TALL FESCUE	naturalized	acceptance uncertain
Festuca brachyphylla	POACEAE	FESCUE	native	
Festuca brachyphylla subsp. coloradensis	POACEAE	FESCUE	native	
Festuca californica	POACEAE	CALIFORNIA FESCUE	native	
Festuca californica subsp. californica	POACEAE		native	
Festuca californica subsp. hitchcockiana	POACEAE		native	
Festuca californica subsp. parishii	POACEAE		native	
Festuca elmeri	POACEAE	FESCUE	native	acceptance uncertain
Festuca idahoensis	POACEAE	BLUE BUNCHGRASS; IDAHO FESCUE	native	
Festuca kingii	POACEAE	FESCUE	native	
Festuca minutiflora	POACEAE	FESCUE	native	
Festuca occidentalis	POACEAE	WESTERN FESCUE	native	
Festuca pratensis	POACEAE	MEADOW FESCUE	naturalized	acceptance uncertain
Festuca roemeri var. klamathensis	POACEAE		native	acceptance uncertain
Festuca roemeri var. roemeri	POACEAE		native	acceptance uncertain
Festuca rubra	POACEAE	RED FESCUE	native	
Festuca saximontana	POACEAE	FESCUE	native	
Festuca saximontana var. purpusiana	POACEAE	FESCUE	native	
Festuca sororia	POACEAE		native	acceptance uncertain
Festuca subulata	POACEAE	BEARDED FESCUE	native	
Festuca subuliflora	POACEAE	CRINKLE-AWN FESCUE	native	
Festuca trachyphylla	POACEAE	HARD FESCUE; SHEEP FESCUE	naturalized	
Festuca viridula	POACEAE	GREEN FESCUE; MOUNTAIN BUNCHGRASS	native	
Ficus palmata	MORACEAE		naturalized	acceptance uncertain
Filago pyramidata	ASTERACEAE	COTTONROSE; FILZKRAUT	naturalized	
Filago pyramidata var. pyramidata	ASTERACEAE	COTTONROSE; FILZKRAUT	naturalized	
Fimbristylis autumnalis	CYPERACEAE		naturalized	
Fimbristylis thermalis	CYPERACEAE	HOT-SPRINGS FIMBRISTYLIS	native	
Fimbristylis vahlii	CYPERACEAE		native	
Flaveria trinervia	ASTERACEAE		naturalized	
Floerkea proserpinacoides	LIMNANTHACEAE	FALSE MERMAID	native	
Foeniculum vulgare	APIACEAE	FENNEL	naturalized	
Forestiera pubescens	OLEACEAE	DESERT OLIVE	native	
Fouquieria splendens	FOUQUIERIACEAE	BOOJUM; CANDLEWOOD; OCOTILLO	native	
Fouquieria splendens subsp. splendens	FOUQUIERIACEAE	OCOTILLO	native	
Fragaria chiloensis	ROSACEAE	BEACH STRAWBERRY	native	
Fragaria vesca	ROSACEAE	WOOD STRAWBERRY	native	
Fragaria virginiana	ROSACEAE	MOUNTAIN STRAWBERRY	native	
Frangula californica	RHAMNACEAE		native	
Frangula californica subsp. californica	RHAMNACEAE		native	
Frangula californica subsp. crassifolia	RHAMNACEAE		native	
Frangula californica subsp. cuspidata	RHAMNACEAE		native	
Frangula californica subsp. occidentalis	RHAMNACEAE		native	
Frangula californica subsp. tomentella	RHAMNACEAE		native	
Frangula californica subsp. ursina	RHAMNACEAE		native	
Frangula purshiana	RHAMNACEAE		native	
Frangula purshiana subsp. annonifolia	RHAMNACEAE		native	
Frangula purshiana subsp. purshiana	RHAMNACEAE		native	
Frangula purshiana subsp. ultramafica	RHAMNACEAE		native	
Frangula rubra	RHAMNACEAE		native	
Frangula rubra subsp. modocensis	RHAMNACEAE		native	
Frangula rubra subsp. obtusissima	RHAMNACEAE		native	
Frangula rubra subsp. rubra	RHAMNACEAE		native	
Frangula rubra subsp. yosemitana	RHAMNACEAE		native	
Frankenia palmeri	FRANKENIACEAE	PALMER'S FRANKENIA	native	
Frankenia salina	FRANKENIACEAE	ALKALI HEATH	native	
Fraxinus anomala	OLEACEAE	SINGLE-LEAF ASH	native	
Fraxinus dipetala	OLEACEAE	CALIFORNIA ASH	native	
Fraxinus jonesii	OLEACEAE		native	acceptance uncertain
Fraxinus latifolia	OLEACEAE	OREGON ASH	native	
Fraxinus parryi	OLEACEAE		native	acceptance uncertain
Fraxinus uhdei	OLEACEAE		naturalized	
Fraxinus velutina	OLEACEAE	VELVET ASH	native	
Fremontodendron californicum	STERCULIACEAE	FLANNELBUSH; FREMONTIA	native	
Fremontodendron californicum subsp. californicum	STERCULIACEAE	FLANNELBUSH; FREMONTIA	native	
Fremontodendron californicum subsp. decumbens	STERCULIACEAE	PINE HILL FLANNELBUSH	native	
Fremontodendron mexicanum	STERCULIACEAE	MEXICAN FLANNELBUSH	native	
Fritillaria affinis	LILIACEAE	CHECKER LILY	native	
Fritillaria agrestis	LILIACEAE	STINKBELLS	native	
Fritillaria atropurpurea	LILIACEAE	FRITILLARY	native	
Fritillaria biflora	LILIACEAE	CHOCOLATE LILY; MISSION BELLS	native	
Fritillaria biflora var. biflora	LILIACEAE	FRITILLARY	native	
Fritillaria biflora var. ineziana	LILIACEAE	FRITILLARY	native	
Fritillaria brandegeei	LILIACEAE	GREENHORN FRITILLARY	native	
Fritillaria eastwoodiae	LILIACEAE	BUTTE COUNTY FRITILLARY	native	
Fritillaria falcata	LILIACEAE	TALUS FRITILLARY	native	
Fritillaria gentneri	LILIACEAE		native	acceptance uncertain
Fritillaria glauca	LILIACEAE	FRITILLARY	native	
Fritillaria liliacea	LILIACEAE	FRAGRANT FRITILLARY	native	
Fritillaria micrantha	LILIACEAE	BROWN BELLS	native	
Fritillaria ojaiensis	LILIACEAE	OJAI FRITILLARY	native	
Fritillaria pinetorum	LILIACEAE	FRITILLARY	native	
Fritillaria pluriflora	LILIACEAE	ADOBE-LILY	native	
Fritillaria pudica	LILIACEAE	YELLOW FRITILLARY	native	
Fritillaria purdyi	LILIACEAE	PURDY'S FRITILLARY	native	
Fritillaria recurva	LILIACEAE	SCARLET FRITILLARY	native	
Fritillaria striata	LILIACEAE	STRIPED ADOBE-LILY	native	
Fritillaria viridea	LILIACEAE	SAN BENITO FRITILLARY	native	
Fuchsia hybrida	ONAGRACEAE		naturalized	acceptance uncertain
Fuchsia magellanica	ONAGRACEAE		naturalized	
Fumaria capreolata	PAPAVERACEAE		naturalized	
Fumaria officinalis	PAPAVERACEAE	FUMITORY	naturalized	
Fumaria parviflora	PAPAVERACEAE		naturalized	
Funastrum crispum	APOCYNACEAE		native	
Funastrum cynanchoides	APOCYNACEAE		native	
Funastrum cynanchoides var. hartwegii	APOCYNACEAE		native	
Funastrum hirtellum	APOCYNACEAE		native	
Funastrum utahense	APOCYNACEAE		native	
Gaillardia aristata	ASTERACEAE	INDIAN-BLANKET	naturalized	
Gaillardia pulchella	ASTERACEAE	INDIAN-BLANKET	naturalized	
Galeopsis tetrahit	LAMIACEAE		naturalized	acceptance uncertain
Galinsoga parviflora	ASTERACEAE		naturalized	
Galinsoga parviflora var. parviflora	ASTERACEAE		naturalized	
Galium ambiguum	RUBIACEAE	YOLLA BOLLY BEDSTRAW	native	
Galium ambiguum var. ambiguum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium ambiguum var. siskiyouense	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium andrewsii	RUBIACEAE	PHLOX-LEAVED BEDSTRAW	native	
Galium andrewsii subsp. andrewsii	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium andrewsii subsp. gatense	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium andrewsii subsp. intermedium	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium angustifolium	RUBIACEAE	NARROW-LEAVED BEDSTRAW	native	
Galium angustifolium subsp. angustifolium	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium angustifolium subsp. borregoense	RUBIACEAE	BORREGO BEDSTRAW	native	
Galium angustifolium subsp. foliosum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium angustifolium subsp. gabrielense	RUBIACEAE	SAN ANTONIO CANYON BEDSTRAW	native	
Galium angustifolium subsp. gracillimum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium angustifolium subsp. jacinticum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium angustifolium subsp. nudicaule	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium angustifolium subsp. onycense	RUBIACEAE	ONYX PEAK BEDSTRAW	native	
Galium aparine	RUBIACEAE	GOOSE GRASS	native	
Galium argense	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium bifolium	RUBIACEAE	LOW MOUNTAIN BEDSTRAW	native	
Galium bolanderi	RUBIACEAE	BOLANDER'S BEDSTRAW	native	
Galium boreale	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium boreale subsp. septentrionale	RUBIACEAE	NORTHERN BEDSTRAW	native	
Galium buxifolium	RUBIACEAE	BOX BEDSTRAW	native	
Galium californicum	RUBIACEAE	CALIFORNIA BEDSTRAW	native	
Galium californicum subsp. californicum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium californicum subsp. flaccidum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium californicum subsp. luciense	RUBIACEAE	CONE PEAK BEDSTRAW	native	
Galium californicum subsp. maritimum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium californicum subsp. miguelense	RUBIACEAE	SAN MIGUEL ISLAND BEDSTRAW	native	
Galium californicum subsp. primum	RUBIACEAE	CALIFORNIA BEDSTRAW	native	
Galium californicum subsp. sierrae	RUBIACEAE	ELDORADO BEDSTRAW	native	
Galium catalinense	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium catalinense subsp. acrispum	RUBIACEAE	SAN CLEMENTE ISLAND BEDSTRAW	native	
Galium catalinense subsp. catalinense	RUBIACEAE	SANTA CATALINA BEDSTRAW	native	
Galium clementis	RUBIACEAE	SANTA LUCIA BEDSTRAW	native	
Galium cliftonsmithii	RUBIACEAE	SANTA BARBARA BEDSTRAW	native	
Galium divaricatum	RUBIACEAE	LAMARCK'S BEDSTRAW	naturalized	
Galium glabrescens	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium glabrescens subsp. glabrescens	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium glabrescens subsp. modocense	RUBIACEAE	MODOC BEDSTRAW	native	
Galium grande	RUBIACEAE	SAN GABRIEL BEDSTRAW	native	
Galium grayanum	RUBIACEAE	GRAY'S BEDSTRAW	native	
Galium grayanum var. grayanum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium grayanum var. nanum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium hallii	RUBIACEAE	NODDING BEDSTRAW	native	
Galium hardhamiae	RUBIACEAE	HARDHAM'S BEDSTRAW	native	
Galium hilendiae	RUBIACEAE	HILEND'S BEDSTRAW	native	
Galium hilendiae subsp. carneum	RUBIACEAE	PANAMINT MOUNTAINS BEDSTRAW	native	
Galium hilendiae subsp. hilendiae	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium hilendiae subsp. kingstonense	RUBIACEAE	KINGSTON MOUNTAIN BEDSTRAW	native	
Galium hypotrichium	RUBIACEAE	ALPINE BEDSTRAW	native	
Galium hypotrichium subsp. hypotrichium	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium hypotrichium subsp. inyoense	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium hypotrichium subsp. subalpinum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium hypotrichium subsp. tomentellum	RUBIACEAE	TELESCOPE PEAK BEDSTRAW	native	
Galium jepsonii	RUBIACEAE	JEPSON'S BEDSTRAW	native	
Galium johnstonii	RUBIACEAE	JOHNSTON'S BEDSTRAW	native	
Galium magnifolium	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium matthewsii	RUBIACEAE	MATTHEWS' BEDSTRAW	native	
Galium mexicanum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium mexicanum var. asperulum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium mollugo	RUBIACEAE	HEDGE BEDSTRAW	naturalized	
Galium multiflorum	RUBIACEAE	KELLOGG'S BEDSTRAW	native	
Galium munzii	RUBIACEAE	MUNZ'S BEDSTRAW	native	
Galium murale	RUBIACEAE	TINY BEDSTRAW	naturalized	
Galium muricatum	RUBIACEAE	HUMBOLDT BEDSTRAW	native	
Galium nuttallii	RUBIACEAE	SAN DIEGO BEDSTRAW	native	
Galium nuttallii subsp. insulare	RUBIACEAE	NUTTALL'S ISLAND BEDSTRAW	native	
Galium nuttallii subsp. nuttallii	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium oreganum	RUBIACEAE	OREGON BEDSTRAW	native	
Galium parishii	RUBIACEAE	PARISH'S BEDSTRAW	native	
Galium parisiense	RUBIACEAE	WALL BEDSTRAW	naturalized	
Galium porrigens	RUBIACEAE	CLIMBING BEDSTRAW	native	
Galium porrigens var. porrigens	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium porrigens var. tenue	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium proliferum	RUBIACEAE	DESERT BEDSTRAW	native	
Galium saxatile	RUBIACEAE	BEDSTRAW; CLEAVERS	naturalized	
Galium schultesii	RUBIACEAE	BEDSTRAW; CLEAVERS	naturalized	
Galium serpenticum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium serpenticum subsp. scotticum	RUBIACEAE	SCOTT MOUNTAIN BEDSTRAW	native	
Galium serpenticum subsp. warnerense	RUBIACEAE	WARNER MOUNTAINS BEDSTRAW	native	
Galium sparsiflorum	RUBIACEAE	SEQUOIA BEDSTRAW	native	
Galium sparsiflorum subsp. glabrius	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium sparsiflorum subsp. sparsiflorum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium stellatum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium stellatum var. eremicum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium tricornutum	RUBIACEAE	ROUGH CORN BEDSTRAW	native	
Galium trifidum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium trifidum var. pacificum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium trifidum var. pusillum	RUBIACEAE	BEDSTRAW; CLEAVERS	native	
Galium triflorum	RUBIACEAE	SWEET-SCENTED BEDSTRAW	native	
Galium verum	RUBIACEAE	LADIES' BEDSTRAW; YELLOW BEDSTRAW	naturalized	
Galium wrightii	RUBIACEAE	WRIGHT'S BEDSTRAW	native	
Galvezia speciosa	SCROPHULARIACEAE	SHOWY ISLAND SNAPDRAGON	native	
Gamochaeta calviceps	ASTERACEAE		naturalized	
Gamochaeta coarctata	ASTERACEAE		naturalized	
Gamochaeta pensylvanica	ASTERACEAE		naturalized	
Gamochaeta stachydifolia	ASTERACEAE		naturalized	acceptance uncertain
Gamochaeta ustulata	ASTERACEAE		native	
Garrya buxifolia	GARRYACEAE	SILK TASSEL BUSH	native	
Garrya congdonii	GARRYACEAE	SILK TASSEL BUSH	native	
Garrya elliptica	GARRYACEAE	SILK TASSEL BUSH	native	
Garrya flavescens	GARRYACEAE	SILK TASSEL BUSH	native	
Garrya fremontii	GARRYACEAE	SILK TASSEL BUSH	native	
Garrya veatchii	GARRYACEAE	SILK TASSEL BUSH	native	
Gastridium ventricosum	POACEAE	NIT GRASS	naturalized	
Gaudinia fragilis	POACEAE		naturalized	
Gaultheria humifusa	ERICACEAE	ALPINE WINTERGREEN	native	
Gaultheria ovatifolia	ERICACEAE		native	
Gaultheria shallon	ERICACEAE	SALAL	native	
Gaura coccinea	ONAGRACEAE	LINDA TARDE; WILD HONEYSUCKLE	native	
Gaura drummondii	ONAGRACEAE		naturalized	
Gaura parviflora	ONAGRACEAE	LIZARD-TAIL; VELVET WEED	naturalized	acceptance uncertain
Gaura sinuata	ONAGRACEAE	WAVY-LEAVED GAURA	naturalized	
Gayophytum decipiens	ONAGRACEAE		native	
Gayophytum diffusum	ONAGRACEAE		native	
Gayophytum diffusum subsp. diffusum	ONAGRACEAE		native	
Gayophytum diffusum subsp. parviflorum	ONAGRACEAE		native	
Gayophytum eriospermum	ONAGRACEAE		native	
Gayophytum heterozygum	ONAGRACEAE		native	
Gayophytum humile	ONAGRACEAE		native	
Gayophytum oligospermum	ONAGRACEAE		native	
Gayophytum racemosum	ONAGRACEAE		native	
Gayophytum ramosissimum	ONAGRACEAE		native	
Gazania linearis	ASTERACEAE		naturalized	
Genista canariensis	FABACEAE	BROOM	naturalized	
Genista linifolia	FABACEAE	BROOM	naturalized	
Genista monosperma	FABACEAE		naturalized	
Genista monspessulana	FABACEAE	BROOM	naturalized	
Gentiana affinis	GENTIANACEAE	GENTIAN	native	
Gentiana affinis var. ovata	GENTIANACEAE	GENTIAN	native	
Gentiana calycosa	GENTIANACEAE	GENTIAN	native	
Gentiana fremontii	GENTIANACEAE	MOSS GENTIAN	native	
Gentiana newberryi	GENTIANACEAE	GENTIAN	native	
Gentiana newberryi var. newberryi	GENTIANACEAE	GENTIAN	native	
Gentiana newberryi var. tiogana	GENTIANACEAE	GENTIAN	native	
Gentiana plurisetosa	GENTIANACEAE	KLAMATH GENTIAN	native	
Gentiana prostrata	GENTIANACEAE	PIGMY GENTIAN	native	
Gentiana sceptrum	GENTIANACEAE	GENTIAN	native	
Gentiana setigera	GENTIANACEAE	MENDOCINO GENTIAN	native	
Gentianella amarella	GENTIANACEAE		native	
Gentianella amarella subsp. acuta	GENTIANACEAE		native	
Gentianopsis holopetala	GENTIANACEAE	FRINGED GENTIAN	native	
Gentianopsis simplex	GENTIANACEAE	FRINGED GENTIAN	native	
Geraea canescens	ASTERACEAE	DESERT-SUNFLOWER	native	
Geraea viscida	ASTERACEAE	STICKY GERAEA	native	
Geranium aequale	GERANIACEAE		naturalized	
Geranium bicknellii	GERANIACEAE	CRANESBILL; GERANIUM	native	
Geranium californicum	GERANIACEAE	CRANESBILL; GERANIUM	native	
Geranium carolinianum	GERANIACEAE	CRANESBILL; GERANIUM	native	
Geranium columbinum	GERANIACEAE		naturalized	
Geranium core-core	GERANIACEAE		naturalized	
Geranium dissectum	GERANIACEAE	CRANESBILL; GERANIUM	naturalized	
Geranium lucidum	GERANIACEAE		naturalized	
Geranium molle	GERANIACEAE	CRANESBILL; GERANIUM	naturalized	
Geranium oreganum	GERANIACEAE	CRANESBILL; GERANIUM	native	
Geranium potentilloides	GERANIACEAE	CRANESBILL; GERANIUM	naturalized	
Geranium purpureum	GERANIACEAE		naturalized	
Geranium pusillum	GERANIACEAE	CRANESBILL; GERANIUM	naturalized	
Geranium richardsonii	GERANIACEAE	CRANESBILL; GERANIUM	native	
Geranium robertianum	GERANIACEAE	CRANESBILL; GERANIUM	naturalized	
Geranium rotundifolium	GERANIACEAE		naturalized	
Geranium solanderi	GERANIACEAE		naturalized	
Geranium viscosissimum	GERANIACEAE	CRANESBILL; GERANIUM	native	
Geum aleppicum	ROSACEAE		native	
Geum macrophyllum	ROSACEAE	BIGLEAF AVENS	native	
Geum triflorum	ROSACEAE	OLD MAN'S WHISKERS	native	
Gilia achilleifolia	POLEMONIACEAE		native	
Gilia achilleifolia subsp. achilleifolia	POLEMONIACEAE		native	
Gilia achilleifolia subsp. multicaulis	POLEMONIACEAE		native	
Gilia aliquanta	POLEMONIACEAE		native	
Gilia aliquanta subsp. aliquanta	POLEMONIACEAE		native	
Gilia aliquanta subsp. breviloba	POLEMONIACEAE		native	
Gilia angelensis	POLEMONIACEAE		native	
Gilia austro-occidentalis	POLEMONIACEAE		native	
Gilia brecciarum	POLEMONIACEAE		native	
Gilia brecciarum subsp. brecciarum	POLEMONIACEAE		native	
Gilia brecciarum subsp. jacens	POLEMONIACEAE		native	
Gilia brecciarum subsp. neglecta	POLEMONIACEAE		native	
Gilia cana	POLEMONIACEAE		native	
Gilia cana subsp. bernardina	POLEMONIACEAE		native	
Gilia cana subsp. cana	POLEMONIACEAE		native	
Gilia cana subsp. speciformis	POLEMONIACEAE		native	
Gilia cana subsp. speciosa	POLEMONIACEAE		native	
Gilia cana subsp. triceps	POLEMONIACEAE		native	
Gilia capitata	POLEMONIACEAE		native	
Gilia capitata subsp. abrotanifolia	POLEMONIACEAE		native	
Gilia capitata subsp. capitata	POLEMONIACEAE		native	
Gilia capitata subsp. chamissonis	POLEMONIACEAE	DUNE GILIA	native	
Gilia capitata subsp. mediomontana	POLEMONIACEAE		native	
Gilia capitata subsp. pacifica	POLEMONIACEAE		native	
Gilia capitata subsp. pedemontana	POLEMONIACEAE		native	
Gilia capitata subsp. staminea	POLEMONIACEAE		native	
Gilia capitata subsp. tomentosa	POLEMONIACEAE		native	
Gilia clivorum	POLEMONIACEAE		native	
Gilia clokeyi	POLEMONIACEAE		native	
Gilia diegensis	POLEMONIACEAE		native	
Gilia inconspicua	POLEMONIACEAE		native	
Gilia interior	POLEMONIACEAE		native	
Gilia latiflora	POLEMONIACEAE	BROAD-FLOWERED GILIA	native	
Gilia latiflora subsp. cuyamensis	POLEMONIACEAE	CUYAMA GILIA	native	
Gilia latiflora subsp. davyi	POLEMONIACEAE		native	
Gilia latiflora subsp. elongata	POLEMONIACEAE		native	
Gilia latiflora subsp. latiflora	POLEMONIACEAE		native	
Gilia leptantha	POLEMONIACEAE		native	
Gilia leptantha subsp. leptantha	POLEMONIACEAE		native	
Gilia leptantha subsp. pinetorum	POLEMONIACEAE		native	
Gilia leptantha subsp. purpusii	POLEMONIACEAE		native	
Gilia leptantha subsp. transversa	POLEMONIACEAE		native	
Gilia malior	POLEMONIACEAE		native	
Gilia millefoliata	POLEMONIACEAE		native	
Gilia minor	POLEMONIACEAE		native	
Gilia modocensis	POLEMONIACEAE		native	
Gilia nevinii	POLEMONIACEAE	NEVIN'S GILIA	native	
Gilia ochroleuca	POLEMONIACEAE		native	
Gilia ochroleuca subsp. bizonata	POLEMONIACEAE		native	
Gilia ochroleuca subsp. exilis	POLEMONIACEAE		native	
Gilia ochroleuca subsp. ochroleuca	POLEMONIACEAE		native	
Gilia ochroleuca subsp. vivida	POLEMONIACEAE		native	
Gilia ophthalmoides	POLEMONIACEAE		native	
Gilia salticola	POLEMONIACEAE		native	
Gilia scopulorum	POLEMONIACEAE		native	
Gilia sinuata	POLEMONIACEAE		native	
Gilia stellata	POLEMONIACEAE	STAR GILIA	native	
Gilia tenuiflora	POLEMONIACEAE		native	
Gilia tenuiflora subsp. amplifaucalis	POLEMONIACEAE		native	
Gilia tenuiflora subsp. arenaria	POLEMONIACEAE	SAND GILIA	native	
Gilia tenuiflora subsp. hoffmannii	POLEMONIACEAE	HOFFMANN'S SLENDER-FLOWERED GILIA	native	
Gilia tenuiflora subsp. tenuiflora	POLEMONIACEAE		native	
Gilia transmontana	POLEMONIACEAE		native	
Gilia tricolor	POLEMONIACEAE	BIRD'S EYES	native	
Gilia tricolor subsp. diffusa	POLEMONIACEAE		native	
Gilia tricolor subsp. tricolor	POLEMONIACEAE		native	
Gilia yorkii	POLEMONIACEAE		native	acceptance uncertain
Gilmania luteola	POLYGONACEAE	GOLDEN CARPET	native	
Githopsis diffusa	CAMPANULACEAE	BLUECUP	native	
Githopsis diffusa subsp. candida	CAMPANULACEAE	BLUECUP	native	
Githopsis diffusa subsp. diffusa	CAMPANULACEAE	BLUECUP	native	
Githopsis diffusa subsp. filicaulis	CAMPANULACEAE	MISSION CANYON BLUECUP	native	
Githopsis diffusa subsp. robusta	CAMPANULACEAE	BLUECUP	native	
Githopsis pulchella	CAMPANULACEAE	BLUECUP	native	
Githopsis pulchella subsp. campestris	CAMPANULACEAE	BLUECUP	native	
Githopsis pulchella subsp. pulchella	CAMPANULACEAE	BLUECUP	native	
Githopsis pulchella subsp. serpentinicola	CAMPANULACEAE	BLUECUP	native	
Githopsis pulchella var. glabra	CAMPANULACEAE		native	
Githopsis pulchella var. pulchella	CAMPANULACEAE		native	
Githopsis specularioides	CAMPANULACEAE	BLUECUP	native	
Githopsis tenella	CAMPANULACEAE	BLUECUP	native	
Glaucium flavum	PAPAVERACEAE	SEA POPPY	naturalized	
Glaux maritima	MYRSINACEAE	SEA-MILKWORT	native	
Glebionis coronaria	ASTERACEAE		naturalized	
Glebionis segetum	ASTERACEAE		naturalized	
Glechoma hederacea	LAMIACEAE	GROUND IVY	naturalized	
Gleditsia triacanthos	FABACEAE		naturalized	
Glehnia littoralis	APIACEAE		native	
Glehnia littoralis subsp. leiocarpa	APIACEAE		native	
Glinus lotoides	MOLLUGINACEAE		naturalized	
Glinus radiatus	MOLLUGINACEAE		naturalized	
Glossopetalon pungens	CROSSOSOMATACEAE	PUNGENT FORSELLESIA	native	
Glossopetalon spinescens	CROSSOSOMATACEAE	NEVADA GREASEWOOD	native	
Glossopetalon spinescens var. aridum	CROSSOSOMATACEAE		native	
Glyceria borealis	POACEAE	MANNAGRASS	native	
Glyceria davyi	POACEAE		native	acceptance uncertain
Glyceria elata	POACEAE	FOWL MANNAGRASS	native	
Glyceria fluitans	POACEAE		naturalized	
Glyceria grandis	POACEAE	AMERICAN MANNAGRASS	native	
Glyceria leptostachya	POACEAE	MANNAGRASS	native	
Glyceria occidentalis	POACEAE	MANNAGRASS	native	
Glyceria striata	POACEAE	MANNAGRASS	native	
Glycyrrhiza glabra	FABACEAE	LICORICE	naturalized	
Glycyrrhiza lepidota	FABACEAE	WILD LICORICE	native	
Glyptopleura marginata	ASTERACEAE		native	
Gnaphalium californicum	ASTERACEAE	CUDWEED; EVERLASTING	native	
Gnaphalium leucocephalum	ASTERACEAE	CUDWEED; EVERLASTING	native	
Gnaphalium luteoalbum	ASTERACEAE		naturalized	
Gnaphalium macounii	ASTERACEAE		native	acceptance uncertain
Gnaphalium palustre	ASTERACEAE	CUDWEED; EVERLASTING	native	
Gnaphalium ramosissimum	ASTERACEAE	CUDWEED; EVERLASTING	native	
Gnaphalium stramineum	ASTERACEAE	CUDWEED; EVERLASTING	native	
Goodmania luteola	POLYGONACEAE		native	
Goodyera oblongifolia	ORCHIDACEAE	RATTLESNAKE PLANTAIN	native	
Gossypium hirsutum	MALVACEAE		naturalized	acceptance uncertain
Gratiola ebracteata	PLANTAGINACEAE	HEDGE-HYSSOP	native	
Gratiola heterosepala	PLANTAGINACEAE	BOGGS LAKE HEDGE-HYSSOP	native	
Gratiola neglecta	PLANTAGINACEAE	HEDGE-HYSSOP	native	
Grayia spinosa	CHENOPODIACEAE	HOP-SAGE	native	
Grevillea robusta	PROTEACEAE		naturalized	
Grindelia camporum	ASTERACEAE	GUMPLANT	native	
Grindelia camporum var. bracteosa	ASTERACEAE	GUMPLANT	native	
Grindelia camporum var. camporum	ASTERACEAE	GUMPLANT	native	
Grindelia fraxinipratensis	ASTERACEAE		native	
Grindelia hirsutula	ASTERACEAE	GUMPLANT	native	
Grindelia hirsutula var. davyi	ASTERACEAE	GUMPLANT	native	
Grindelia hirsutula var. hallii	ASTERACEAE	SAN DIEGO GUMPLANT	native	
Grindelia hirsutula var. hirsutula	ASTERACEAE	GUMPLANT	native	
Grindelia hirsutula var. maritima	ASTERACEAE	SAN FRANCISCO GUMPLANT	native	
Grindelia nana	ASTERACEAE	GUMPLANT	native	
Grindelia squarrosa	ASTERACEAE	GUMPLANT	naturalized	
Grindelia squarrosa var. serrulata	ASTERACEAE	GUMPLANT	naturalized	
Grindelia stricta	ASTERACEAE	GUMPLANT	native	
Grindelia stricta var. angustifolia	ASTERACEAE	MARSH GUMPLANT	native	
Grindelia stricta var. platyphylla	ASTERACEAE	GUMPLANT	native	
Grindelia stricta var. stricta	ASTERACEAE	GUMPLANT	native	
Grusonia parishii	CACTACEAE		native	
Grusonia pulchella	CACTACEAE		native	
Guilleminea densa	AMARANTHACEAE		naturalized	
Guillenia flavescens	BRASSICACEAE		native	
Guillenia lasiophylla	BRASSICACEAE	CALIFORNIA MUSTARD	native	
Guizotia abyssinica	ASTERACEAE	RAMTILLA	naturalized	
Gunnera tinctoria	GUNNERACEAE		naturalized	
Gutierrezia californica	ASTERACEAE	CALIFORNIA MATCHWEED	native	
Gutierrezia microcephala	ASTERACEAE	STICKY SNAKEWEED	native	
Gutierrezia sarothrae	ASTERACEAE	BROOM SNAKEWEED; MATCHWEED	native	
Gymnosteris parvula	POLEMONIACEAE		native	
Gypsophila elegans	CARYOPHYLLACEAE	BABY'S-BREATH	naturalized	
Gypsophila paniculata	CARYOPHYLLACEAE	BABY'S-BREATH	naturalized	
Hackelia amethystina	BORAGINACEAE	AMETHYST STICKSEED	native	
Hackelia bella	BORAGINACEAE	STICKSEED	native	
Hackelia brevicula	BORAGINACEAE	POISON CANYON STICK-SEED	native	
Hackelia californica	BORAGINACEAE	STICKSEED	native	
Hackelia cusickii	BORAGINACEAE	CUSICK'S STICKSEED	native	
Hackelia floribunda	BORAGINACEAE	STICKSEED	native	
Hackelia micrantha	BORAGINACEAE	STICKSEED	native	
Hackelia mundula	BORAGINACEAE	STICKSEED	native	
Hackelia nervosa	BORAGINACEAE	STICKSEED	native	
Hackelia setosa	BORAGINACEAE	STICKSEED	native	
Hackelia sharsmithii	BORAGINACEAE	SHARSMITH'S STICKSEED	native	
Hackelia velutina	BORAGINACEAE	STICKSEED	native	
Hainardia cylindrica	POACEAE		naturalized	
Halimolobos jaegeri	BRASSICACEAE		native	
Halimolobos virgata	BRASSICACEAE	VIRGATE HALIMOLOBOS	native	
Halogeton glomeratus	CHENOPODIACEAE		naturalized	
Haloragis erecta	HALORAGACEAE		naturalized	
Harmonia doris-nilesiae	ASTERACEAE		native	
Harmonia guggolziorum	ASTERACEAE		native	
Harmonia hallii	ASTERACEAE		native	
Harmonia nutans	ASTERACEAE		native	
Harmonia stebbinsii	ASTERACEAE		native	
Harpagonella palmeri	BORAGINACEAE	PALMER'S GRAPPLING HOOK	native	
Hastingsia alba	AGAVACEAE		native	
Hastingsia serpentinicola	AGAVACEAE		native	
Hazardia brickellioides	ASTERACEAE		native	
Hazardia cana	ASTERACEAE	SAN CLEMENTE ISLAND HAZARDIA	native	
Hazardia detonsa	ASTERACEAE	ISLAND HAZARDIA	native	
Hazardia orcuttii	ASTERACEAE	ORCUTT'S HAZARDIA	native	
Hazardia squarrosa	ASTERACEAE	SAW-TOOTHED GOLDENBUSH	native	
Hazardia squarrosa var. grindelioides	ASTERACEAE		native	
Hazardia squarrosa var. obtusa	ASTERACEAE		native	
Hazardia squarrosa var. squarrosa	ASTERACEAE		native	
Hazardia stenolepis	ASTERACEAE		native	
Hazardia whitneyi	ASTERACEAE		native	
Hazardia whitneyi var. discoidea	ASTERACEAE		native	
Hazardia whitneyi var. whitneyi	ASTERACEAE		native	
Hecastocleis shockleyi	ASTERACEAE		native	
Hedeoma drummondii	LAMIACEAE	MOCK PENNYROYAL	native	
Hedeoma nana	LAMIACEAE	MOCK PENNYROYAL	native	
Hedeoma nana subsp. californica	LAMIACEAE	MOCK PENNYROYAL	native	
Hedera canariensis	ARALIACEAE		naturalized	
Hedera helix	ARALIACEAE	ENGLISH IVY	naturalized	
Hedypnois cretica	ASTERACEAE	CRETE WEED	naturalized	
Helenium amarum	ASTERACEAE	SNEEZEWEED	naturalized	
Helenium autumnale	ASTERACEAE	SNEEZEWEED	native	
Helenium autumnale var. grandiflorum	ASTERACEAE	SNEEZEWEED	native	
Helenium autumnale var. montanum	ASTERACEAE	SNEEZEWEED	native	
Helenium bigelovii	ASTERACEAE	SNEEZEWEED	native	
Helenium bolanderi	ASTERACEAE	SNEEZEWEED	native	
Helenium puberulum	ASTERACEAE	SNEEZEWEED	native	
Helianthella californica	ASTERACEAE		native	
Helianthella californica var. californica	ASTERACEAE		native	
Helianthella californica var. nevadensis	ASTERACEAE		native	
Helianthella californica var. shastensis	ASTERACEAE		native	
Helianthella castanea	ASTERACEAE	DIABLO HELIANTHELLA	native	
Helianthemum greenei	CISTACEAE	ISLAND RUSH-ROSE	native	
Helianthemum scoparium	CISTACEAE	PEAK RUSH-ROSE	native	
Helianthus annuus	ASTERACEAE	SUNFLOWER	native	
Helianthus bolanderi	ASTERACEAE	SUNFLOWER	native	
Helianthus californicus	ASTERACEAE	SUNFLOWER	native	
Helianthus ciliaris	ASTERACEAE	BLUEWEED	naturalized	
Helianthus cusickii	ASTERACEAE	SUNFLOWER	native	
Helianthus exilis	ASTERACEAE		native	
Helianthus gracilentus	ASTERACEAE	SUNFLOWER	native	
Helianthus maximilianii	ASTERACEAE	SUNFLOWER	naturalized	
Helianthus niveus	ASTERACEAE	SUNFLOWER	native	
Helianthus niveus subsp. canescens	ASTERACEAE	SUNFLOWER	native	
Helianthus niveus subsp. tephrodes	ASTERACEAE	ALGODONES DUNES SUNFLOWER	native	
Helianthus nuttallii	ASTERACEAE	SUNFLOWER	native	
Helianthus nuttallii subsp. nuttallii	ASTERACEAE	SUNFLOWER	native	
Helianthus petiolaris	ASTERACEAE	SUNFLOWER	naturalized	
Helianthus petiolaris subsp. petiolaris	ASTERACEAE	SUNFLOWER	naturalized	
Helichrysum petiolare	ASTERACEAE		naturalized	
Heliomeris multiflora	ASTERACEAE	GOLDEN-EYE	native	
Heliomeris multiflora var. nevadensis	ASTERACEAE	GOLDEN-EYE	native	
Heliotropium amplexicaule	BORAGINACEAE	HELIOTROPE	naturalized	
Heliotropium convolvulaceum	BORAGINACEAE	HELIOTROPE	native	
Heliotropium convolvulaceum var. californicum	BORAGINACEAE	HELIOTROPE	native	
Heliotropium curassavicum	BORAGINACEAE	HELIOTROPE	native	
Heliotropium europaeum	BORAGINACEAE	HELIOTROPE	naturalized	
Helipterum roseum	ASTERACEAE		naturalized	acceptance uncertain
Helminthotheca echioides	ASTERACEAE		naturalized	
Hemitomes congestum	ERICACEAE	GNOME PLANT	native	
Hemizonella minima	ASTERACEAE		native	
Hemizonia congesta	ASTERACEAE	HAYFIELD TARWEED	native	
Hemizonia congesta subsp. calyculata	ASTERACEAE	MENDOCINO TARPLANT	native	
Hemizonia congesta subsp. clevelandii	ASTERACEAE	TARPLANT; TARWEED	native	
Hemizonia congesta subsp. congesta	ASTERACEAE	TARPLANT; TARWEED	native	
Hemizonia congesta subsp. lutescens	ASTERACEAE		native	
Hemizonia congesta subsp. luzulifolia	ASTERACEAE	TARPLANT; TARWEED	native	
Hemizonia congesta subsp. tracyi	ASTERACEAE	TRACY'S TARPLANT	native	
Heracleum maximum	APIACEAE		native	
Herissantia crispa	MALVACEAE	CURLY ABUTILON	native	
Herniaria hirsuta	CARYOPHYLLACEAE		naturalized	
Herniaria hirsuta var. cinerea	CARYOPHYLLACEAE		naturalized	
Herniaria hirsuta var. hirsuta	CARYOPHYLLACEAE		naturalized	
Hesperevax acaulis	ASTERACEAE		native	
Hesperevax acaulis var. acaulis	ASTERACEAE	DWARF EVAX	native	
Hesperevax acaulis var. ambusticola	ASTERACEAE	FIRE EVAX	native	
Hesperevax acaulis var. robustior	ASTERACEAE		native	
Hesperevax caulescens	ASTERACEAE	HOGWALLOW STARFISH	native	
Hesperevax sparsiflora	ASTERACEAE		native	
Hesperevax sparsiflora var. brevifolia	ASTERACEAE	SHORT-LEAVED EVAX	native	
Hesperevax sparsiflora var. sparsiflora	ASTERACEAE		native	
Hesperis matronalis	BRASSICACEAE	DAME'S ROCKET	naturalized	
Hesperocallis undulata	AGAVACEAE	DESERT LILY	native	
Hesperochiron californicus	BORAGINACEAE		native	
Hesperochiron pumilus	BORAGINACEAE		native	
Hesperocnide tenella	URTICACEAE	WESTERN NETTLE	native	
Hesperocyparis abramsiana	CUPRESSACEAE		native	
Hesperocyparis abramsiana var. abramsiana	CUPRESSACEAE		native	
Hesperocyparis abramsiana var. butanoensis	CUPRESSACEAE		native	
Hesperocyparis bakeri	CUPRESSACEAE		native	
Hesperocyparis forbesii	CUPRESSACEAE		native	
Hesperocyparis goveniana	CUPRESSACEAE		native	
Hesperocyparis macnabiana	CUPRESSACEAE		native	
Hesperocyparis macrocarpa	CUPRESSACEAE		native	
Hesperocyparis nevadensis	CUPRESSACEAE		native	
Hesperocyparis pygmaea	CUPRESSACEAE		native	
Hesperocyparis sargentii	CUPRESSACEAE		native	
Hesperocyparis stephensonii	CUPRESSACEAE		native	
Hesperolinon adenophyllum	LINACEAE	GLANDULAR DWARF FLAX	native	
Hesperolinon bicarpellatum	LINACEAE	TWO-CARPELLATE DWARF FLAX	native	
Hesperolinon breweri	LINACEAE	BREWER'S DWARF FLAX	native	
Hesperolinon californicum	LINACEAE	DWARF FLAX	native	
Hesperolinon clevelandii	LINACEAE	DWARF FLAX	native	
Hesperolinon congestum	LINACEAE	MARIN DWARF FLAX	native	
Hesperolinon didymocarpum	LINACEAE	LAKE COUNTY DWARF FLAX	native	
Hesperolinon disjunctum	LINACEAE	DWARF FLAX	native	
Hesperolinon drymarioides	LINACEAE	DRYMARIA-LIKE DWARF FLAX	native	
Hesperolinon micranthum	LINACEAE	DWARF FLAX	native	
Hesperolinon sharsmithiae	LINACEAE		native	acceptance uncertain
Hesperolinon spergulinum	LINACEAE	DWARF FLAX	native	
Hesperolinon tehamense	LINACEAE	DWARF FLAX	native	
Hesperomecon linearis	PAPAVERACEAE		native	
Hesperostipa comata	POACEAE	NEEDLE-AND-THREAD	native	
Hesperostipa comata subsp. comata	POACEAE		native	
Hesperostipa comata subsp. intermedia	POACEAE		native	
Heteranthemis viscidihirta	ASTERACEAE		naturalized	
Heteranthera dubia	PONTEDERIACEAE	WATER STAR-GRASS	native	
Heteranthera limosa	PONTEDERIACEAE	MUD PLANTAIN	naturalized	
Heterocodon rariflorum	CAMPANULACEAE		native	
Heterodraba unilateralis	BRASSICACEAE		native	
Heteromeles arbutifolia	ROSACEAE	CHRISTMAS BERRY; TOYON	native	
Heteropogon contortus	POACEAE		native	
Heterotheca grandiflora	ASTERACEAE	TELEGRAPH WEED	native	
Heterotheca monarchensis	ASTERACEAE		native	
Heterotheca oregona	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca oregona var. compacta	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca oregona var. oregona	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca oregona var. rudis	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca oregona var. scaberrima	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca sessiliflora	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca sessiliflora subsp. bolanderi	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	acceptance uncertain
Heterotheca sessiliflora subsp. echioides	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	acceptance uncertain
Heterotheca sessiliflora subsp. fastigiata	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca sessiliflora subsp. sessiliflora	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca shevockii	ASTERACEAE		native	
Heterotheca subaxillaris	ASTERACEAE		native	
Heterotheca subaxillaris subsp. latifolia	ASTERACEAE		native	
Heterotheca villosa	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heterotheca villosa var. minor	ASTERACEAE		native	
Heterotheca villosa var. scabra	ASTERACEAE	GOLDENASTER; TELEGRAPH WEED	native	
Heuchera abramsii	SAXIFRAGACEAE	ABRAMS' ALUMROOT	native	
Heuchera brevistaminea	SAXIFRAGACEAE	MOUNT LAGUNA ALUMROOT	native	
Heuchera cespitosa	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera cylindrica	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera cylindrica var. alpina	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera elegans	SAXIFRAGACEAE	URN-FLOWERED ALUMROOT	native	
Heuchera hirsutissima	SAXIFRAGACEAE	SHAGGY-HAIRED ALUMROOT	native	
Heuchera maxima	SAXIFRAGACEAE	ISLAND ALUMROOT	native	
Heuchera merriamii	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera micrantha	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera micrantha var. macropetala	SAXIFRAGACEAE		native	acceptance uncertain
Heuchera parishii	SAXIFRAGACEAE	PARISH'S ALUMROOT	native	
Heuchera parvifolia	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera pilosissima	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera rubescens	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera rubescens var. alpicola	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera rubescens var. glandulosa	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera rubescens var. rydbergiana	SAXIFRAGACEAE	ALUMROOT	native	
Heuchera rubescens var. versicolor	SAXIFRAGACEAE	SAN DIEGO COUNTY ALUMROOT	native	
Hibiscus denudatus	MALVACEAE	PALE FACE	native	
Hibiscus lasiocarpos	MALVACEAE		native	
Hibiscus trionum	MALVACEAE	FLOWER-OF-AN-HOUR	naturalized	
Hieracium albiflorum	ASTERACEAE	HAWKWEED	native	
Hieracium argutum	ASTERACEAE	HAWKWEED	native	
Hieracium aurantiacum	ASTERACEAE	HAWKWEED	naturalized	
Hieracium bolanderi	ASTERACEAE	HAWKWEED	native	
Hieracium greenei	ASTERACEAE	HAWKWEED	native	
Hieracium horridum	ASTERACEAE	HAWKWEED	native	
Hieracium nudicaule	ASTERACEAE		native	
Hieracium parryi	ASTERACEAE		native	
Hieracium scouleri	ASTERACEAE	HAWKWEED	native	
Hieracium triste	ASTERACEAE		native	
Hierochloe occidentalis	POACEAE	SWEETGRASS	native	
Hierochloe odorata	POACEAE	VANILLA GRASS	native	
Hippuris vulgaris	HIPPURIDACEAE	MARE'S-TAIL	native	
Hirschfeldia incana	BRASSICACEAE		naturalized	
Hoffmannseggia glauca	FABACEAE	HOG POTATO; PIG-NUT	native	
Hoffmannseggia microphylla	FABACEAE		native	
Hoita macrostachya	FABACEAE		native	
Hoita orbicularis	FABACEAE		native	
Hoita strobilina	FABACEAE		native	
Holcus lanatus	POACEAE	COMMON VELVET GRASS	naturalized	
Holcus mollis	POACEAE	CREEPING VELVET GRASS	naturalized	
Hollisteria lanata	POLYGONACEAE		native	
Holmgrenanthe petrophila	PLANTAGINACEAE		native	
Holocarpha heermannii	ASTERACEAE		native	
Holocarpha macradenia	ASTERACEAE	SANTA CRUZ TARPLANT	native	
Holocarpha obconica	ASTERACEAE		native	
Holocarpha virgata	ASTERACEAE		native	
Holocarpha virgata subsp. elongata	ASTERACEAE	GRACEFUL TARPLANT	native	
Holocarpha virgata subsp. virgata	ASTERACEAE		native	
Holodiscus discolor	ROSACEAE	OCEANSPRAY	native	
Holodiscus microphyllus	ROSACEAE		native	
Holodiscus microphyllus var. glabrescens	ROSACEAE		native	
Holodiscus microphyllus var. microphyllus	ROSACEAE	ROCK SPIRAEA	native	
Holosteum umbellatum	CARYOPHYLLACEAE	JAGGED CHICKWEED	naturalized	
Holosteum umbellatum subsp. umbellatum	CARYOPHYLLACEAE	JAGGED CHICKWEED	naturalized	
Holozonia filipes	ASTERACEAE		native	
Hordeum arizonicum	POACEAE	BARLEY	native	
Hordeum brachyantherum	POACEAE	BARLEY	native	
Hordeum brachyantherum subsp. brachyantherum	POACEAE	BARLEY	native	
Hordeum brachyantherum subsp. californicum	POACEAE	BARLEY	native	
Hordeum depressum	POACEAE	LOW BARLEY	native	
Hordeum intercedens	POACEAE	BARLEY	native	
Hordeum jubatum	POACEAE	FOXTAIL BARLEY	native	
Hordeum marinum	POACEAE	BARLEY	naturalized	
Hordeum marinum subsp. gussoneanum	POACEAE	MEDITERRANEAN BARLEY	naturalized	
Hordeum murinum	POACEAE	BARLEY	naturalized	
Hordeum murinum subsp. glaucum	POACEAE	BARLEY	naturalized	
Hordeum murinum subsp. leporinum	POACEAE	BARLEY	naturalized	
Hordeum murinum subsp. murinum	POACEAE	BARLEY	naturalized	
Horkelia bolanderi	ROSACEAE	BOLANDER'S HORKELIA	native	
Horkelia californica	ROSACEAE		native	
Horkelia californica subsp. californica	ROSACEAE		native	
Horkelia californica subsp. dissita	ROSACEAE		native	
Horkelia californica subsp. frondosa	ROSACEAE		native	
Horkelia clevelandii	ROSACEAE		native	
Horkelia congesta	ROSACEAE		native	
Horkelia congesta subsp. nemorosa	ROSACEAE	JOSEPHINE HORKELIA	native	
Horkelia cuneata	ROSACEAE		native	
Horkelia cuneata subsp. cuneata	ROSACEAE		native	
Horkelia cuneata subsp. puberula	ROSACEAE		native	
Horkelia cuneata subsp. sericea	ROSACEAE	KELLOGG'S HORKELIA	native	
Horkelia daucifolia	ROSACEAE		native	
Horkelia fusca	ROSACEAE		native	
Horkelia fusca subsp. capitata	ROSACEAE		native	
Horkelia fusca subsp. parviflora	ROSACEAE		native	
Horkelia fusca subsp. tenella	ROSACEAE		native	
Horkelia hendersonii	ROSACEAE	HENDERSON'S HORKELIA	native	
Horkelia hispidula	ROSACEAE	WHITE MOUNTAINS HORKELIA	native	
Horkelia marinensis	ROSACEAE	POINT REYES HORKELIA	native	
Horkelia parryi	ROSACEAE	PARRY'S HORKELIA	native	
Horkelia rydbergii	ROSACEAE		native	
Horkelia sericata	ROSACEAE	HOWELL'S HORKELIA	native	
Horkelia tenuiloba	ROSACEAE	THIN-LOBED HORKELIA	native	
Horkelia tridentata	ROSACEAE		native	
Horkelia tridentata subsp. flavescens	ROSACEAE		native	
Horkelia tridentata subsp. tridentata	ROSACEAE		native	
Horkelia truncata	ROSACEAE	RAMONA HORKELIA	native	
Horkelia tularensis	ROSACEAE	KERN PLATEAU HORKELIA	native	
Horkelia wilderae	ROSACEAE	BARTON FLATS HORKELIA	native	
Horkelia yadonii	ROSACEAE	SANTA LUCIA HORKELIA	native	
Horkeliella congdonis	ROSACEAE		native	
Horkeliella purpurascens	ROSACEAE		native	
Horsfordia alata	MALVACEAE		native	
Horsfordia newberryi	MALVACEAE		native	
Howellia aquatilis	CAMPANULACEAE		native	
Hulsea algida	ASTERACEAE		native	
Hulsea brevifolia	ASTERACEAE	SHORT-LEAVED HULSEA	native	
Hulsea californica	ASTERACEAE	SAN DIEGO SUNFLOWER	native	
Hulsea heterochroma	ASTERACEAE		native	
Hulsea mexicana	ASTERACEAE	MEXICAN HULSEA	native	
Hulsea nana	ASTERACEAE		native	
Hulsea vestita	ASTERACEAE		native	
Hulsea vestita subsp. callicarpha	ASTERACEAE		native	
Hulsea vestita subsp. gabrielensis	ASTERACEAE		native	
Hulsea vestita subsp. inyoensis	ASTERACEAE	INYO HULSEA	native	
Hulsea vestita subsp. parryi	ASTERACEAE		native	
Hulsea vestita subsp. pygmaea	ASTERACEAE		native	
Hulsea vestita subsp. vestita	ASTERACEAE		native	
Humulus americanus	CANNABACEAE		naturalized	acceptance uncertain
Humulus lupulus	CANNABACEAE	EUROPEAN HOP	naturalized	
Hutchinsia procumbens	BRASSICACEAE		native	
Hydrilla verticillata	HYDROCHARITACEAE		naturalized	
Hydrocotyle ranunculoides	APIACEAE		native	
Hydrocotyle sibthorpioides	APIACEAE		naturalized	
Hydrocotyle umbellata	APIACEAE		native	
Hydrocotyle verticillata	APIACEAE		native	
Hydrophyllum capitatum	BORAGINACEAE		native	
Hydrophyllum capitatum var. alpinum	BORAGINACEAE	WOOLEN-BREECHES	native	
Hydrophyllum fendleri	BORAGINACEAE		native	
Hydrophyllum fendleri var. albifrons	BORAGINACEAE		native	
Hydrophyllum occidentale	BORAGINACEAE		native	
Hydrophyllum tenuipes	BORAGINACEAE		native	
Hymenopappus filifolius	ASTERACEAE		native	
Hymenopappus filifolius var. eriopodus	ASTERACEAE		native	
Hymenopappus filifolius var. lugens	ASTERACEAE		native	
Hymenopappus filifolius var. megacephalus	ASTERACEAE		native	
Hymenopappus filifolius var. nanus	ASTERACEAE		native	
Hymenothrix loomisii	ASTERACEAE		naturalized	
Hymenothrix wrightii	ASTERACEAE		native	
Hymenoxys cooperi	ASTERACEAE		native	
Hymenoxys hoopesii	ASTERACEAE		native	
Hymenoxys lemmonii	ASTERACEAE		native	
Hymenoxys odorata	ASTERACEAE		native	
Hyparrhenia hirta	POACEAE		naturalized	
Hypericum anagalloides	HYPERICACEAE	TINKER'S PENNY	native	
Hypericum androsaemum	HYPERICACEAE		naturalized	
Hypericum calycinum	HYPERICACEAE		naturalized	acceptance uncertain
Hypericum canariense	HYPERICACEAE		naturalized	
Hypericum concinnum	HYPERICACEAE	GOLD-WIRE	native	
Hypericum formosum	HYPERICACEAE		native	
Hypericum formosum var. scouleri	HYPERICACEAE		native	
Hypericum hookerianum	HYPERICACEAE		naturalized	acceptance uncertain
Hypericum mutilum	HYPERICACEAE		naturalized	
Hypericum perforatum	HYPERICACEAE	KLAMATHWEED	naturalized	
Hypochaeris glabra	ASTERACEAE	SMOOTH CAT'S-EAR	naturalized	
Hypochaeris radicata	ASTERACEAE	ROUGH CAT'S-EAR	naturalized	
Hyptis emoryi	LAMIACEAE	DESERT-LAVENDER	native	
Idahoa scapigera	BRASSICACEAE	FLAT-POD	native	
Iliamna bakeri	MALVACEAE	BAKER'S GLOBE MALLOW	native	
Iliamna latibracteata	MALVACEAE	CALIFORNIA GLOBE MALLOW	native	
Impatiens balfourii	BALSAMINACEAE	JEWELWEED; TOUCH-ME-NOT	naturalized	
Impatiens glandulifera	BALSAMINACEAE		naturalized	
Imperata brevifolia	POACEAE	SATINTAIL	native	
Inula helenium	ASTERACEAE		naturalized	acceptance uncertain
Ionactis alpina	ASTERACEAE		native	
Ipheion uniflorum	ALLIACEAE	STAR FLOWER	naturalized	
Ipomopsis aggregata	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis aggregata subsp. bridgesii	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis aggregata subsp. formosissima	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis arizonica	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis congesta	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis congesta subsp. congesta	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis congesta subsp. montana	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis congesta subsp. palmifrons	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis polycladon	POLEMONIACEAE	SCARLET GILIA	native	
Ipomopsis tenuifolia	POLEMONIACEAE	SLENDER-LEAVED IPOMOPSIS	native	
Ipomopsis tenuituba	POLEMONIACEAE	SCARLET GILIA	native	
Iris bracteata	IRIDACEAE	SISKIYOU IRIS	native	
Iris chrysophylla	IRIDACEAE	YELLOW-FLOWERED IRIS	native	
Iris douglasiana	IRIDACEAE	IRIS	native	
Iris fernaldii	IRIDACEAE	IRIS	native	
Iris foetidissima	IRIDACEAE		naturalized	
Iris germanica	IRIDACEAE		naturalized	
Iris hartwegii	IRIDACEAE	IRIS	native	
Iris hartwegii subsp. australis	IRIDACEAE	IRIS	native	
Iris hartwegii subsp. columbiana	IRIDACEAE	TUOLUMNE IRIS	native	
Iris hartwegii subsp. hartwegii	IRIDACEAE	IRIS	native	
Iris hartwegii subsp. pinetorum	IRIDACEAE	IRIS	native	
Iris innominata	IRIDACEAE	DEL NORTE COUNTY IRIS	native	
Iris longipetala	IRIDACEAE	IRIS	native	
Iris macrosiphon	IRIDACEAE	IRIS	native	
Iris missouriensis	IRIDACEAE	WESTERN BLUE FLAG	native	
Iris munzii	IRIDACEAE	MUNZ'S IRIS	native	
Iris orientalis	IRIDACEAE		naturalized	acceptance uncertain
Iris pseudacorus	IRIDACEAE	IRIS	naturalized	
Iris purdyi	IRIDACEAE	IRIS	native	
Iris tenax	IRIDACEAE	IRIS	native	
Iris tenax subsp. klamathensis	IRIDACEAE	ORLEANS IRIS	native	
Iris tenuissima	IRIDACEAE	IRIS	native	
Iris tenuissima subsp. purdyiformis	IRIDACEAE	IRIS	native	
Iris tenuissima subsp. tenuissima	IRIDACEAE	IRIS	native	
Isatis tinctoria	BRASSICACEAE	WOAD	naturalized	
Ismelia carinata	ASTERACEAE		naturalized	
Isocoma acradenia	ASTERACEAE	GOLDENBUSH	native	
Isocoma acradenia var. acradenia	ASTERACEAE	GOLDENBUSH	native	
Isocoma acradenia var. bracteosa	ASTERACEAE	GOLDENBUSH	native	
Isocoma acradenia var. eremophila	ASTERACEAE	GOLDENBUSH	native	
Isocoma arguta	ASTERACEAE	CARQUINEZ GOLDENBUSH	native	
Isocoma menziesii	ASTERACEAE	GOLDENBUSH	native	
Isocoma menziesii var. decumbens	ASTERACEAE		native	
Isocoma menziesii var. diabolica	ASTERACEAE		native	
Isocoma menziesii var. menziesii	ASTERACEAE	GOLDENBUSH	native	
Isocoma menziesii var. sedoides	ASTERACEAE	GOLDENBUSH	native	
Isocoma menziesii var. vernonioides	ASTERACEAE	GOLDENBUSH	native	
Isoetes bolanderi	ISOETACEAE	QUILLWORT	native	
Isoetes echinospora	ISOETACEAE	QUILLWORT	native	
Isoetes howellii	ISOETACEAE	QUILLWORT	native	
Isoetes nuttallii	ISOETACEAE	QUILLWORT	native	
Isoetes occidentalis	ISOETACEAE	QUILLWORT	native	
Isoetes orcuttii	ISOETACEAE	QUILLWORT	native	
Isolepis carinata	CYPERACEAE		native	
Isolepis cernua	CYPERACEAE		native	
Isolepis setacea	CYPERACEAE		naturalized	
Isomeris arborea	BRASSICACEAE	BLADDERPOD	native	
Iva axillaris	ASTERACEAE	WORMWOOD	native	
Iva axillaris subsp. robustior	ASTERACEAE	POVERTY WEED	native	
Iva hayesiana	ASTERACEAE	SAN DIEGO MARSH-ELDER	native	
Iva nevadensis	ASTERACEAE	WORMWOOD	native	acceptance uncertain
Ivesia aperta	ROSACEAE		native	
Ivesia aperta var. aperta	ROSACEAE	SIERRA VALLEY IVESIA	native	
Ivesia aperta var. canina	ROSACEAE	DOG VALLEY IVESIA	native	
Ivesia argyrocoma	ROSACEAE	SILVER-HAIRED IVESIA	native	
Ivesia arizonica	ROSACEAE		native	
Ivesia arizonica var. arizonica	ROSACEAE	YELLOW PURPUSIA	native	
Ivesia baileyi	ROSACEAE		native	
Ivesia baileyi var. baileyi	ROSACEAE	BAILEY'S IVESIA	native	
Ivesia baileyi var. beneolens	ROSACEAE	OWYHEE IVESIA	native	
Ivesia callida	ROSACEAE	TAHQUITZ IVESIA	native	
Ivesia campestris	ROSACEAE	FIELD IVESIA	native	
Ivesia gordonii	ROSACEAE		native	
Ivesia jaegeri	ROSACEAE	JAEGER'S IVESIA	native	
Ivesia kingii	ROSACEAE		native	
Ivesia kingii var. kingii	ROSACEAE	ALKALI IVESIA	native	
Ivesia longibracteata	ROSACEAE	CASTLE CRAGS IVESIA	native	
Ivesia lycopodioides	ROSACEAE	CLUB-MOSS IVESIA	native	
Ivesia lycopodioides subsp. lycopodioides	ROSACEAE		native	
Ivesia lycopodioides subsp. megalopetala	ROSACEAE		native	
Ivesia lycopodioides subsp. scandularis	ROSACEAE		native	
Ivesia muirii	ROSACEAE		native	
Ivesia paniculata	ROSACEAE	ASH CREEK IVESIA	native	
Ivesia patellifera	ROSACEAE	KINGSTON MOUNTAINS IVESIA	native	
Ivesia pickeringii	ROSACEAE	PICKERING'S IVESIA	native	
Ivesia pygmaea	ROSACEAE		native	
Ivesia santolinoides	ROSACEAE	MOUSETAIL IVESIA	native	
Ivesia saxosa	ROSACEAE		native	
Ivesia sericoleuca	ROSACEAE	PLUMAS IVESIA	native	
Ivesia shockleyi	ROSACEAE		native	
Ivesia shockleyi var. shockleyi	ROSACEAE		native	
Ivesia unguiculata	ROSACEAE	YOSEMITE IVESIA	native	
Ivesia webberi	ROSACEAE	WEBBER'S IVESIA	native	
Jamesia americana	PHILADELPHACEAE	CLIFFBUSH	native	
Jamesia americana var. rosea	PHILADELPHACEAE	CLIFFBUSH	native	
Jaumea carnosa	ASTERACEAE		native	
Jensia rammii	ASTERACEAE		native	
Jensia yosemitana	ASTERACEAE		native	
Jepsonia heterandra	SAXIFRAGACEAE		native	
Jepsonia malvifolia	SAXIFRAGACEAE	ISLAND JEPSONIA	native	
Jepsonia parryi	SAXIFRAGACEAE		native	
Johanneshowellia puberula	POLYGONACEAE		native	
Juglans californica	JUGLANDACEAE	CALIFORNIA BLACK WALNUT	native	
Juglans hindsii	JUGLANDACEAE		native	
Juncus acuminatus	JUNCACEAE	RUSH	native	
Juncus acutus	JUNCACEAE	RUSH	native	
Juncus acutus subsp. leopoldii	JUNCACEAE	RUSH	native	
Juncus ambiguus	JUNCACEAE	RUSH	native	
Juncus articulatus	JUNCACEAE	RUSH	native	
Juncus balticus	JUNCACEAE	RUSH	native	
Juncus bolanderi	JUNCACEAE	RUSH	native	
Juncus brachyphyllus	JUNCACEAE	RUSH	native	
Juncus breweri	JUNCACEAE	RUSH	native	
Juncus bryoides	JUNCACEAE	RUSH	native	
Juncus bufonius	JUNCACEAE	TOAD RUSH	native	
Juncus bufonius var. bufonius	JUNCACEAE	RUSH	native	
Juncus bufonius var. congestus	JUNCACEAE	RUSH	native	
Juncus bufonius var. occidentalis	JUNCACEAE	RUSH	native	
Juncus capillaris	JUNCACEAE	RUSH	native	
Juncus capitatus	JUNCACEAE	RUSH	naturalized	
Juncus chlorocephalus	JUNCACEAE	RUSH	native	
Juncus confusus	JUNCACEAE	RUSH	native	
Juncus cooperi	JUNCACEAE	RUSH	native	
Juncus covillei	JUNCACEAE	RUSH	native	
Juncus covillei var. covillei	JUNCACEAE	RUSH	native	
Juncus covillei var. obtusatus	JUNCACEAE	RUSH	native	
Juncus cyperoides	JUNCACEAE	RUSH	naturalized	
Juncus diffusissimus	JUNCACEAE	RUSH	naturalized	
Juncus digitatus	JUNCACEAE		native	
Juncus drummondii	JUNCACEAE	RUSH	native	
Juncus dubius	JUNCACEAE	RUSH	native	
Juncus dudleyi	JUNCACEAE	DUDLEY'S RUSH	native	
Juncus duranii	JUNCACEAE	DURAN'S RUSH	native	
Juncus effusus	JUNCACEAE	RUSH	native	
Juncus effusus subsp. austrocalifornicus	JUNCACEAE		native	acceptance uncertain
Juncus effusus var. brunneus	JUNCACEAE	RUSH	native	acceptance uncertain
Juncus effusus var. exiguus	JUNCACEAE	RUSH	native	acceptance uncertain
Juncus effusus var. gracilis	JUNCACEAE	RUSH	native	acceptance uncertain
Juncus effusus var. pacificus	JUNCACEAE	RUSH	native	acceptance uncertain
Juncus ensifolius	JUNCACEAE	RUSH	native	
Juncus falcatus	JUNCACEAE	RUSH	native	
Juncus falcatus var. falcatus	JUNCACEAE	RUSH	native	
Juncus gerardii	JUNCACEAE		naturalized	acceptance uncertain
Juncus hemiendytus	JUNCACEAE	RUSH	native	
Juncus hemiendytus var. abjectus	JUNCACEAE	CENTER BASIN RUSH	native	
Juncus hemiendytus var. hemiendytus	JUNCACEAE	RUSH	native	
Juncus howellii	JUNCACEAE	RUSH	native	
Juncus kelloggii	JUNCACEAE	RUSH	native	
Juncus leiospermus	JUNCACEAE	DWARF RUSH	native	
Juncus leiospermus var. ahartii	JUNCACEAE	AHART'S DWARF RUSH	native	
Juncus leiospermus var. leiospermus	JUNCACEAE	RED BLUFF DWARF RUSH	native	
Juncus lescurii	JUNCACEAE		native	
Juncus longistylis	JUNCACEAE	RUSH	native	
Juncus luciensis	JUNCACEAE	RUSH	native	
Juncus macrandrus	JUNCACEAE	RUSH	native	
Juncus macrophyllus	JUNCACEAE	RUSH	native	
Juncus marginatus	JUNCACEAE	RUSH	native	
Juncus marginatus var. marginatus	JUNCACEAE	RUSH	native	
Juncus mertensianus	JUNCACEAE	RUSH	native	
Juncus mexicanus	JUNCACEAE	RUSH	native	acceptance uncertain
Juncus nevadensis	JUNCACEAE	RUSH	native	
Juncus nodosus	JUNCACEAE	KNOTTED RUSH	native	
Juncus occidentalis	JUNCACEAE	RUSH	native	
Juncus orthophyllus	JUNCACEAE	RUSH	native	
Juncus oxymeris	JUNCACEAE	RUSH	native	
Juncus parryi	JUNCACEAE	RUSH	native	
Juncus patens	JUNCACEAE	RUSH	native	
Juncus phaeocephalus	JUNCACEAE	RUSH	native	
Juncus phaeocephalus var. paniculatus	JUNCACEAE	RUSH	native	
Juncus phaeocephalus var. phaeocephalus	JUNCACEAE	RUSH	native	
Juncus regelii	JUNCACEAE	REGEL'S RUSH	native	
Juncus rugulosus	JUNCACEAE	WRINKLED RUSH	native	
Juncus saximontanus	JUNCACEAE	RUSH	native	
Juncus supiniformis	JUNCACEAE	HAIR-LEAVED RUSH	native	
Juncus tenuis	JUNCACEAE	RUSH	native	
Juncus textilis	JUNCACEAE	RUSH	native	
Juncus tiehmii	JUNCACEAE	RUSH	native	
Juncus torreyi	JUNCACEAE	RUSH	native	
Juncus triformis	JUNCACEAE	RUSH	native	
Juncus uncialis	JUNCACEAE	RUSH	native	
Juncus usitatus	JUNCACEAE		naturalized	acceptance uncertain
Juncus xiphioides	JUNCACEAE	RUSH	native	
Juniperus californica	CUPRESSACEAE	CALIFORNIA JUNIPER	native	
Juniperus communis	CUPRESSACEAE	COMMON JUNIPER	native	
Juniperus communis var. depressa	CUPRESSACEAE		native	
Juniperus communis var. jackii	CUPRESSACEAE		native	
Juniperus communis var. saxatilis	CUPRESSACEAE		native	
Juniperus grandis	CUPRESSACEAE		native	
Juniperus occidentalis	CUPRESSACEAE	JUNIPER	native	
Juniperus osteosperma	CUPRESSACEAE	UTAH JUNIPER	native	
Justicia californica	ACANTHACEAE	BELOPERONE; CHUPAROSA	native	
Kallstroemia californica	ZYGOPHYLLACEAE		native	
Kallstroemia grandiflora	ZYGOPHYLLACEAE		naturalized	
Kallstroemia parviflora	ZYGOPHYLLACEAE		naturalized	
Kalmia polifolia	ERICACEAE	LAUREL	native	
Kalmia polifolia subsp. microphylla	ERICACEAE	LAUREL	native	
Kalmia polifolia subsp. polifolia	ERICACEAE	LAUREL	native	
Keckiella antirrhinoides	PLANTAGINACEAE		native	
Keckiella antirrhinoides var. antirrhinoides	PLANTAGINACEAE		native	
Keckiella antirrhinoides var. microphylla	PLANTAGINACEAE		native	
Keckiella breviflora	PLANTAGINACEAE		native	
Keckiella breviflora var. breviflora	PLANTAGINACEAE		native	
Keckiella breviflora var. glabrisepala	PLANTAGINACEAE		native	
Keckiella cordifolia	PLANTAGINACEAE		native	
Keckiella corymbosa	PLANTAGINACEAE		native	
Keckiella lemmonii	PLANTAGINACEAE		native	
Keckiella rothrockii	PLANTAGINACEAE		native	
Keckiella rothrockii var. jacintensis	PLANTAGINACEAE		native	
Keckiella rothrockii var. rothrockii	PLANTAGINACEAE		native	
Keckiella ternata	PLANTAGINACEAE		native	
Keckiella ternata var. septentrionalis	PLANTAGINACEAE		native	
Keckiella ternata var. ternata	PLANTAGINACEAE		native	
Kelloggia galioides	RUBIACEAE		native	
Kickxia elatine	PLANTAGINACEAE	FLUELLIN	naturalized	
Kickxia spuria	PLANTAGINACEAE	FLUELLIN	naturalized	
Kniphofia uvaria	ASPHODELACEAE		naturalized	
Kobresia myosuroides	CYPERACEAE		native	
Kochia americana	CHENOPODIACEAE		native	
Kochia californica	CHENOPODIACEAE		native	
Kochia scoparia	CHENOPODIACEAE		naturalized	
Kochia scoparia subsp. scoparia	CHENOPODIACEAE		naturalized	
Koeberlinia spinosa	KOEBERLINIACEAE	ALLTHORN	native	
Koeberlinia spinosa subsp. tenuispina	KOEBERLINIACEAE	CROWN-OF-THORNS	native	
Koeleria macrantha	POACEAE	JUNEGRASS	native	
Koeleria phleoides	POACEAE		naturalized	
Koelreuteria elegans	SAPINDACEAE		naturalized	acceptance uncertain
Krameria erecta	KRAMERIACEAE	PIMA RHATANY; PURPLE HEATHER	native	
Krameria grayi	KRAMERIACEAE	WHITE RHATANY	native	
Krascheninnikovia lanata	CHENOPODIACEAE	WINTER FAT	native	
Kyhosia bolanderi	ASTERACEAE		native	
Kyllinga brevifolia	CYPERACEAE		naturalized	
Laburnum anagyroides	FABACEAE		naturalized	acceptance uncertain
Lactuca biennis	ASTERACEAE	LETTUCE	naturalized	
Lactuca canadensis	ASTERACEAE	LETTUCE	naturalized	
Lactuca ludoviciana	ASTERACEAE	LETTUCE	naturalized	
Lactuca saligna	ASTERACEAE	LETTUCE	naturalized	
Lactuca sativa	ASTERACEAE		naturalized	acceptance uncertain
Lactuca serriola	ASTERACEAE	PRICKLY LETTUCE	naturalized	
Lactuca tatarica	ASTERACEAE	LETTUCE	native	
Lactuca tatarica subsp. pulchella	ASTERACEAE	LETTUCE	native	
Lactuca virosa	ASTERACEAE	LETTUCE	naturalized	
Ladeania lanceolata	FABACEAE		native	
Laennecia coulteri	ASTERACEAE		native	acceptance uncertain
Lagophylla dichotoma	ASTERACEAE		native	
Lagophylla glandulosa	ASTERACEAE		native	
Lagophylla minor	ASTERACEAE		native	
Lagophylla ramosissima	ASTERACEAE		native	
Lagunaria patersonia	MALVACEAE		naturalized	acceptance uncertain
Lagurus ovatus	POACEAE	HARE'S TAIL	naturalized	
Lamarckia aurea	POACEAE	GOLDENTOP	naturalized	
Lamiastrum galeobdolon	LAMIACEAE		naturalized	acceptance uncertain
Lamium amplexicaule	LAMIACEAE	DEAD NETTLE	naturalized	
Lamium purpureum	LAMIACEAE	DEAD NETTLE	naturalized	
Landoltia punctata	ARACEAE		native	
Langloisia setosissima	POLEMONIACEAE		native	
Langloisia setosissima subsp. punctata	POLEMONIACEAE	LILAC SUNBONNET	native	
Langloisia setosissima subsp. setosissima	POLEMONIACEAE	BRISTLY LANGLOISIA	native	
Lantana montevidensis	VERBENACEAE		naturalized	
Lappula redowskii	BORAGINACEAE	STICKSEED	native	
Lappula redowskii var. cupulata	BORAGINACEAE	STICKSEED	native	
Lappula redowskii var. redowskii	BORAGINACEAE	STICKSEED	native	
Lappula squarrosa	BORAGINACEAE	STICKSEED	naturalized	
Lapsana communis	ASTERACEAE	NIPPLEWORT	naturalized	
Larrea tridentata	ZYGOPHYLLACEAE	CREOSOTE BUSH	native	
Lasiospermum bipinnatum	ASTERACEAE		naturalized	
Lastarriaea coriacea	POLYGONACEAE		native	
Lasthenia burkei	ASTERACEAE	BURKE'S GOLDFIELDS	native	
Lasthenia californica	ASTERACEAE	GOLDFIELDS	native	
Lasthenia californica subsp. bakeri	ASTERACEAE		native	
Lasthenia californica subsp. californica	ASTERACEAE		native	
Lasthenia californica subsp. macrantha	ASTERACEAE		native	
Lasthenia chrysantha	ASTERACEAE	GOLDFIELDS	native	
Lasthenia conjugens	ASTERACEAE	CONTRA COSTA GOLDFIELDS	native	
Lasthenia coronaria	ASTERACEAE	GOLDFIELDS	native	
Lasthenia debilis	ASTERACEAE	GOLDFIELDS	native	
Lasthenia ferrisiae	ASTERACEAE	GOLDFIELDS	native	
Lasthenia fremontii	ASTERACEAE	GOLDFIELDS	native	
Lasthenia glaberrima	ASTERACEAE	GOLDFIELDS	native	
Lasthenia glabrata	ASTERACEAE	GOLDFIELDS	native	
Lasthenia glabrata subsp. coulteri	ASTERACEAE	COULTER GOLDFIELDS	native	
Lasthenia glabrata subsp. glabrata	ASTERACEAE	GOLDFIELDS	native	
Lasthenia gracilis	ASTERACEAE		native	
Lasthenia leptalea	ASTERACEAE	SALINAS VALLEY GOLDFIELDS	native	
Lasthenia maritima	ASTERACEAE	MARITIME GOLDFIELDS	native	
Lasthenia microglossa	ASTERACEAE	GOLDFIELDS	native	
Lasthenia minor	ASTERACEAE	GOLDFIELDS	native	
Lasthenia platycarpha	ASTERACEAE	GOLDFIELDS	native	
Lathrocasis tenerrima	POLEMONIACEAE		native	acceptance uncertain
Lathyrus angulatus	FABACEAE	WILD PEA	naturalized	
Lathyrus aphaca	FABACEAE	WILD PEA	naturalized	
Lathyrus biflorus	FABACEAE	TWO-FLOWERED PEA	native	
Lathyrus brownii	FABACEAE	WILD PEA	native	
Lathyrus cicera	FABACEAE	WILD PEA	naturalized	
Lathyrus delnorticus	FABACEAE	DEL NORTE PEA	native	
Lathyrus glandulosus	FABACEAE	STICKY PEA	native	
Lathyrus hirsutus	FABACEAE	CALEY PEA	naturalized	
Lathyrus hitchcockianus	FABACEAE	WILD PEA	native	
Lathyrus japonicus	FABACEAE	WILD PEA	native	
Lathyrus jepsonii	FABACEAE	WILD PEA	native	
Lathyrus jepsonii var. californicus	FABACEAE	WILD PEA	native	
Lathyrus jepsonii var. jepsonii	FABACEAE	DELTA TULE PEA	native	
Lathyrus lanszwertii	FABACEAE	WILD PEA	native	
Lathyrus lanszwertii var. aridus	FABACEAE	WILD PEA	native	
Lathyrus lanszwertii var. lanszwertii	FABACEAE	WILD PEA	native	
Lathyrus lanszwertii var. tracyi	FABACEAE	WILD PEA	native	
Lathyrus latifolius	FABACEAE	PERENNIAL SWEET PEA	naturalized	
Lathyrus littoralis	FABACEAE	WILD PEA	native	
Lathyrus nevadensis	FABACEAE	WILD PEA	native	
Lathyrus nevadensis var. nevadensis	FABACEAE	WILD PEA	native	
Lathyrus odoratus	FABACEAE	SWEET PEA	naturalized	
Lathyrus palustris	FABACEAE	MARSH PEA	native	
Lathyrus polyphyllus	FABACEAE	WILD PEA	native	
Lathyrus rigidus	FABACEAE	WILD PEA	native	
Lathyrus sphaericus	FABACEAE	WILD PEA	naturalized	
Lathyrus splendens	FABACEAE	CAMPO PEA; PRIDE OF CALIFORNIA	native	
Lathyrus sulphureus	FABACEAE	WILD PEA	native	
Lathyrus sulphureus var. argillaceus	FABACEAE		native	
Lathyrus sulphureus var. sulphureus	FABACEAE		native	
Lathyrus tingitanus	FABACEAE	TANGIER PEA	naturalized	
Lathyrus torreyi	FABACEAE	WILD PEA	native	
Lathyrus vestitus	FABACEAE	WILD PEA	native	
Lathyrus vestitus var. alefeldii	FABACEAE	WILD PEA	native	
Lathyrus vestitus var. ochropetalus	FABACEAE	WILD PEA	native	
Lathyrus vestitus var. vestitus	FABACEAE	WILD PEA	native	
Lavatera trimestris	MALVACEAE		naturalized	acceptance uncertain
Layia carnosa	ASTERACEAE	BEACH LAYIA	native	
Layia chrysanthemoides	ASTERACEAE		native	
Layia discoidea	ASTERACEAE	RAYLESS LAYIA	native	
Layia fremontii	ASTERACEAE		native	
Layia gaillardioides	ASTERACEAE		native	
Layia glandulosa	ASTERACEAE	WHITE LAYIA	native	
Layia heterotricha	ASTERACEAE	PALE-YELLOW LAYIA	native	
Layia hieracioides	ASTERACEAE		native	
Layia jonesii	ASTERACEAE	JONES' LAYIA	native	
Layia leucopappa	ASTERACEAE	COMANCHE POINT LAYIA	native	
Layia munzii	ASTERACEAE	MUNZ' TIDY-TIPS	native	
Layia pentachaeta	ASTERACEAE		native	
Layia pentachaeta subsp. albida	ASTERACEAE		native	
Layia pentachaeta subsp. pentachaeta	ASTERACEAE		native	
Layia platyglossa	ASTERACEAE	TIDY-TIPS	native	
Layia septentrionalis	ASTERACEAE	COLUSA LAYIA	native	
Leersia oryzoides	POACEAE	RICE CUTGRASS	native	
Legenere limosa	CAMPANULACEAE	LEGENERE	native	
Lemna aequinoctialis	ARACEAE	DUCKWEED	native	
Lemna gibba	ARACEAE	DUCKWEED	native	
Lemna minor	ARACEAE	DUCKWEED	native	
Lemna minuta	ARACEAE	DUCKWEED	native	
Lemna trisulca	ARACEAE	DUCKWEED	native	
Lemna turionifera	ARACEAE	DUCKWEED	native	
Lemna valdiviana	ARACEAE	DUCKWEED	native	
Leonotis leonurus	LAMIACEAE		naturalized	acceptance uncertain
Leontodon saxatilis	ASTERACEAE		naturalized	
Leontodon saxatilis subsp. longirostris	ASTERACEAE		naturalized	acceptance uncertain
Leontodon saxatilis subsp. saxatilis	ASTERACEAE		naturalized	acceptance uncertain
Leonurus sibiricus	LAMIACEAE		naturalized	acceptance uncertain
Lepechinia calycina	LAMIACEAE	PITCHER SAGE	native	
Lepechinia cardiophylla	LAMIACEAE	HEART-LEAVED PITCHER SAGE	native	
Lepechinia fragrans	LAMIACEAE	FRAGRANT PITCHER SAGE	native	
Lepechinia ganderi	LAMIACEAE	GANDER'S PITCHER SAGE	native	
Lepechinia rossii	LAMIACEAE		native	acceptance uncertain
Lepidium appelianum	BRASSICACEAE		native	
Lepidium campestre	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	naturalized	
Lepidium densiflorum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium densiflorum var. densiflorum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium densiflorum var. elongatum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium densiflorum var. macrocarpum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium densiflorum var. pubicarpum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium densiflorum var. ramosum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium dictyotum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium dictyotum var. acutidens	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium dictyotum var. dictyotum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium didymum	BRASSICACEAE		naturalized	
Lepidium draba	BRASSICACEAE		naturalized	
Lepidium draba subsp. chalepense	BRASSICACEAE		naturalized	
Lepidium draba subsp. draba	BRASSICACEAE		naturalized	
Lepidium flavum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium flavum var. felipense	BRASSICACEAE	BORREGO VALLEY PEPPERGRASS	native	
Lepidium flavum var. flavum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium fremontii	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium heterophyllum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	naturalized	
Lepidium jaredii	BRASSICACEAE	JARED'S PEPPERGRASS	native	
Lepidium lasiocarpum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium lasiocarpum var. lasiocarpum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium latifolium	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	naturalized	
Lepidium latipes	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium latipes var. heckardii	BRASSICACEAE	HECKARD'S PEPPERGRASS	native	
Lepidium latipes var. latipes	BRASSICACEAE	DWARF PEPPERGRASS	native	
Lepidium montanum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium montanum var. canescens	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium montanum var. cinereum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium montanum var. montanum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium nitidum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium nitidum var. howellii	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium nitidum var. nitidum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium nitidum var. oreganum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium oblongum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium oblongum var. insulare	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium oblongum var. oblongum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium oxycarpum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium perfoliatum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	naturalized	
Lepidium pinnatifidum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	naturalized	
Lepidium ramosissimum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium ramosissimum var. bourgeauanum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium squamatum	BRASSICACEAE		naturalized	
Lepidium strictum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	naturalized	
Lepidium thurberi	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium virginicum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium virginicum var. medium	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium virginicum var. pubescens	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium virginicum var. robinsonii	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	native	
Lepidium virginicum var. virginicum	BRASSICACEAE	PEPPERGRASS; PEPPERWORT	naturalized	
Lepidospartum latisquamum	ASTERACEAE	SCALE-BROOM	native	
Lepidospartum squamatum	ASTERACEAE	SCALE-BROOM	native	
Leptochloa dubia	POACEAE		naturalized	
Leptochloa fascicularis	POACEAE	BEARDED SPRANGLETOP	native	
Leptochloa mucronata	POACEAE	RED SPRANGLETOP	native	acceptance uncertain
Leptochloa uninervia	POACEAE	MEXICAN SPRANGLETOP	native	
Leptochloa viscida	POACEAE	STICKY SPRANGLETOP	native	
Leptosiphon acicularis	POLEMONIACEAE		native	
Leptosiphon ambiguus	POLEMONIACEAE		native	
Leptosiphon androsaceus	POLEMONIACEAE		native	
Leptosiphon aureus	POLEMONIACEAE		native	
Leptosiphon aureus subsp. aureus	POLEMONIACEAE		native	
Leptosiphon aureus subsp. decorus	POLEMONIACEAE		native	
Leptosiphon bicolor	POLEMONIACEAE		native	
Leptosiphon bolanderi	POLEMONIACEAE		native	
Leptosiphon breviculus	POLEMONIACEAE		native	
Leptosiphon ciliatus	POLEMONIACEAE		native	
Leptosiphon croceus	POLEMONIACEAE		native	
Leptosiphon filipes	POLEMONIACEAE		native	
Leptosiphon floribundus	POLEMONIACEAE		native	
Leptosiphon floribundus subsp. floribundus	POLEMONIACEAE		native	
Leptosiphon floribundus subsp. glaber	POLEMONIACEAE		native	
Leptosiphon floribundus subsp. hallii	POLEMONIACEAE		native	
Leptosiphon grandiflorus	POLEMONIACEAE		native	
Leptosiphon harknessii	POLEMONIACEAE		native	
Leptosiphon jepsonii	POLEMONIACEAE		native	
Leptosiphon latisectus	POLEMONIACEAE		native	
Leptosiphon lemmonii	POLEMONIACEAE		native	
Leptosiphon liniflorus	POLEMONIACEAE		native	
Leptosiphon minimus	POLEMONIACEAE		native	
Leptosiphon montanus	POLEMONIACEAE		native	
Leptosiphon nudatus	POLEMONIACEAE		native	
Leptosiphon nuttallii	POLEMONIACEAE		native	
Leptosiphon nuttallii subsp. howellii	POLEMONIACEAE		native	
Leptosiphon nuttallii subsp. nuttallii	POLEMONIACEAE		native	
Leptosiphon nuttallii subsp. pubescens	POLEMONIACEAE		native	
Leptosiphon oblanceolatus	POLEMONIACEAE		native	
Leptosiphon pachyphyllus	POLEMONIACEAE		native	
Leptosiphon parviflorus	POLEMONIACEAE		native	
Leptosiphon pygmaeus	POLEMONIACEAE		native	
Leptosiphon pygmaeus subsp. continentalis	POLEMONIACEAE		native	
Leptosiphon pygmaeus subsp. pygmaeus	POLEMONIACEAE		native	
Leptosiphon rattanii	POLEMONIACEAE		native	
Leptosiphon rosaceus	POLEMONIACEAE		native	
Leptosiphon septentrionalis	POLEMONIACEAE		native	
Leptosiphon serrulatus	POLEMONIACEAE		native	
Leptospermum laevigatum	MYRTACEAE		naturalized	
Leptosyne bigelovii	ASTERACEAE		native	
Leptosyne californica	ASTERACEAE		native	
Leptosyne calliopsidea	ASTERACEAE		native	
Leptosyne douglasii	ASTERACEAE		native	
Leptosyne gigantea	ASTERACEAE		native	
Leptosyne hamiltonii	ASTERACEAE		native	
Leptosyne maritima	ASTERACEAE		native	
Leptosyne stillmanii	ASTERACEAE		native	
Lessingia arachnoidea	ASTERACEAE	CRYSTAL SPRINGS LESSINGIA	native	
Lessingia germanorum	ASTERACEAE	SAN FRANCISCO LESSINGIA	native	
Lessingia glandulifera	ASTERACEAE		native	
Lessingia glandulifera var. glandulifera	ASTERACEAE		native	
Lessingia glandulifera var. pectinata	ASTERACEAE		native	
Lessingia glandulifera var. tomentosa	ASTERACEAE	WARNER SPRINGS LESSINGIA	native	
Lessingia hololeuca	ASTERACEAE	WOOLLY-HEADED LESSINGIA	native	
Lessingia lemmonii	ASTERACEAE		native	
Lessingia lemmonii var. lemmonii	ASTERACEAE		native	
Lessingia lemmonii var. peirsonii	ASTERACEAE		native	
Lessingia lemmonii var. ramulosissima	ASTERACEAE		native	
Lessingia leptoclada	ASTERACEAE		native	
Lessingia micradenia	ASTERACEAE		native	
Lessingia micradenia var. glabrata	ASTERACEAE	SMOOTH LESSINGIA	native	
Lessingia micradenia var. micradenia	ASTERACEAE	TAMALPAIS LESSINGIA	native	
Lessingia nana	ASTERACEAE		native	
Lessingia nemaclada	ASTERACEAE		native	
Lessingia ramulosa	ASTERACEAE		native	
Lessingia tenuis	ASTERACEAE	SPRING LESSINGIA	native	
Lessingia virgata	ASTERACEAE		native	
Leucanthemum lacustre	ASTERACEAE		naturalized	
Leucanthemum maximum	ASTERACEAE		naturalized	
Leucanthemum vulgare	ASTERACEAE	OX-EYE DAISY	naturalized	
Leucocrinum montanum	AGAVACEAE	SAND LILY	native	
Leucothoe davisiae	ERICACEAE	SIERRA LAUREL	native	
Lewisia brachycalyx	MONTIACEAE	SHORT-SEPALED LEWISIA	native	
Lewisia cantelovii	MONTIACEAE	CANTELOW'S LEWISIA	native	
Lewisia congdonii	MONTIACEAE	CONGDON'S LEWISIA	native	
Lewisia cotyledon	MONTIACEAE	CLIFF MAIDS	native	
Lewisia cotyledon var. cotyledon	MONTIACEAE		native	
Lewisia cotyledon var. heckneri	MONTIACEAE	HECKNER'S LEWISIA	native	
Lewisia cotyledon var. howellii	MONTIACEAE	HOWELL'S LEWISIA	native	
Lewisia disepala	MONTIACEAE	YOSEMITE LEWISIA	native	
Lewisia glandulosa	MONTIACEAE		native	
Lewisia kelloggii	MONTIACEAE		native	
Lewisia kelloggii subsp. hutchisonii	MONTIACEAE		native	
Lewisia kelloggii subsp. kelloggii	MONTIACEAE		native	
Lewisia leeana	MONTIACEAE		native	
Lewisia longipetala	MONTIACEAE	LONG-PETALED LEWISIA	native	
Lewisia nevadensis	MONTIACEAE		native	
Lewisia oppositifolia	MONTIACEAE	OPPOSITE-LEAVED LEWISIA	native	
Lewisia pygmaea	MONTIACEAE		native	
Lewisia rediviva	MONTIACEAE	BITTER ROOT	native	
Lewisia rediviva var. minor	MONTIACEAE		native	
Lewisia rediviva var. rediviva	MONTIACEAE		native	
Lewisia serrata	MONTIACEAE		native	
Lewisia stebbinsii	MONTIACEAE	STEBBINS' LEWISIA	native	
Lewisia triphylla	MONTIACEAE		native	
Leymus cinereus	POACEAE		native	
Leymus condensatus	POACEAE		native	
Leymus mollis	POACEAE		native	
Leymus mollis subsp. mollis	POACEAE		native	
Leymus pacificus	POACEAE		native	
Leymus salina	POACEAE		native	
Leymus salina subsp. mojavensis	POACEAE		native	
Leymus triticoides	POACEAE		native	
Ligusticum apiifolium	APIACEAE		native	
Ligusticum californicum	APIACEAE		native	
Ligusticum grayi	APIACEAE		native	
Ligustrum japonicum	OLEACEAE		naturalized	
Ligustrum lucidum	OLEACEAE		naturalized	
Ligustrum ovalifolium	OLEACEAE		naturalized	
Lilaea scilloides	JUNCAGINACEAE	FLOWERING-QUILLWORT	native	
Lilaeopsis masonii	APIACEAE	MASON'S LILAEOPSIS	native	
Lilaeopsis occidentalis	APIACEAE		native	
Lilium bolanderi	LILIACEAE	BOLANDER'S LILY	native	
Lilium columbianum	LILIACEAE	COLUMBIA LILY	native	
Lilium humboldtii	LILIACEAE	LILY	native	
Lilium humboldtii subsp. humboldtii	LILIACEAE	HUMBOLDT LILY	native	
Lilium humboldtii subsp. ocellatum	LILIACEAE	OCELLATED LILY	native	
Lilium kelleyanum	LILIACEAE	LILY	native	
Lilium kelloggii	LILIACEAE	LILY	native	
Lilium maritimum	LILIACEAE	COAST LILY	native	
Lilium occidentale	LILIACEAE	WESTERN LILY	native	
Lilium pardalinum	LILIACEAE	LILY	native	
Lilium pardalinum subsp. pardalinum	LILIACEAE	LEOPARD LILY	native	
Lilium pardalinum subsp. pitkinense	LILIACEAE	PITKIN MARSH LILY	native	
Lilium pardalinum subsp. shastense	LILIACEAE	LILY	native	
Lilium pardalinum subsp. vollmeri	LILIACEAE	VOLLMER'S LILY	native	
Lilium pardalinum subsp. wigginsii	LILIACEAE	WIGGINS' LILY	native	
Lilium parryi	LILIACEAE	LEMON LILY	native	
Lilium parvum	LILIACEAE	ALPINE LILY	native	
Lilium rubescens	LILIACEAE	REDWOOD LILY	native	
Lilium washingtonianum	LILIACEAE	WASHINGTON LILY	native	
Lilium washingtonianum subsp. purpurascens	LILIACEAE	PURPLE-FLOWERED SHASTA LILY	native	
Lilium washingtonianum subsp. washingtonianum	LILIACEAE	LILY	native	
Limnanthes alba	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes alba subsp. alba	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes alba subsp. parishii	LIMNANTHACEAE		native	
Limnanthes alba subsp. versicolor	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes bakeri	LIMNANTHACEAE	BAKER'S MEADOWFOAM	native	
Limnanthes douglasii	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes douglasii subsp. douglasii	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes douglasii subsp. nivea	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes douglasii subsp. rosea	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes douglasii subsp. striata	LIMNANTHACEAE		native	
Limnanthes douglasii subsp. sulphurea	LIMNANTHACEAE	POINT REYES MEADOWFOAM	native	
Limnanthes floccosa	LIMNANTHACEAE	WOOLLY MEADOWFOAM	native	
Limnanthes floccosa subsp. californica	LIMNANTHACEAE	SHIPPEE MEADOWFOAM	native	
Limnanthes floccosa subsp. floccosa	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes montana	LIMNANTHACEAE	MEADOWFOAM	native	
Limnanthes vinculans	LIMNANTHACEAE	SEBASTOPOL MEADOWFOAM	native	
Limnobium spongia	HYDROCHARITACEAE		naturalized	
Limonium californicum	PLUMBAGINACEAE	WESTERN MARSH-ROSEMARY	native	
Limonium otolepis	PLUMBAGINACEAE	MARSH-ROSEMARY; SEA-LAVENDER	naturalized	
Limonium perezii	PLUMBAGINACEAE	MARSH-ROSEMARY; SEA-LAVENDER	naturalized	
Limonium ramosissimum	PLUMBAGINACEAE		naturalized	
Limonium ramosissimum subsp. provinciale	PLUMBAGINACEAE		naturalized	
Limonium sinuatum	PLUMBAGINACEAE	MARSH-ROSEMARY; SEA-LAVENDER	naturalized	
Limosella acaulis	SCROPHULARIACEAE	MUDWORT	native	
Limosella aquatica	SCROPHULARIACEAE	MUDWORT	native	
Limosella subulata	SCROPHULARIACEAE	MUDWORT	naturalized	
Linanthus arenicola	POLEMONIACEAE	SAND LINANTHUS	native	
Linanthus bellus	POLEMONIACEAE	DESERT BEAUTY	native	
Linanthus bigelovii	POLEMONIACEAE		native	
Linanthus californicus	POLEMONIACEAE		native	
Linanthus campanulatus	POLEMONIACEAE		native	
Linanthus concinnus	POLEMONIACEAE	SAN GABRIEL LINANTHUS	native	
Linanthus demissus	POLEMONIACEAE		native	
Linanthus dianthiflorus	POLEMONIACEAE		native	
Linanthus dichotomus	POLEMONIACEAE	EVENING SNOW	native	
Linanthus dichotomus subsp. dichotomus	POLEMONIACEAE		native	
Linanthus dichotomus subsp. meridianus	POLEMONIACEAE		native	
Linanthus filiformis	POLEMONIACEAE		native	
Linanthus inyoensis	POLEMONIACEAE		native	
Linanthus jaegeri	POLEMONIACEAE		native	
Linanthus jonesii	POLEMONIACEAE		native	
Linanthus killipii	POLEMONIACEAE	BALDWIN LAKE LINANTHUS	native	
Linanthus maculatus	POLEMONIACEAE		native	
Linanthus orcuttii	POLEMONIACEAE	ORCUTT'S LINANTHUS	native	
Linanthus parryae	POLEMONIACEAE		native	
Linanthus pungens	POLEMONIACEAE		native	
Linaria bipartita	PLANTAGINACEAE	TOADFLAX	naturalized	
Linaria canadensis	PLANTAGINACEAE	BLUE TOADFLAX	native	
Linaria genistifolia	PLANTAGINACEAE	TOADFLAX	naturalized	
Linaria genistifolia subsp. dalmatica	PLANTAGINACEAE	DALMATIAN TOADFLAX	naturalized	
Linaria maroccana	PLANTAGINACEAE	TOADFLAX	naturalized	
Linaria pinifolia	PLANTAGINACEAE	TOADFLAX	naturalized	
Linaria purpurea	PLANTAGINACEAE	TOADFLAX	naturalized	
Linaria supina	PLANTAGINACEAE	TOADFLAX	naturalized	
Linaria vulgaris	PLANTAGINACEAE	BUTTER-AND-EGGS	naturalized	
Lindernia dubia	PLANTAGINACEAE	FALSE PIMPERNEL	native	
Lindernia dubia var. anagallidea	PLANTAGINACEAE	FALSE PIMPERNEL	native	
Lindernia dubia var. dubia	PLANTAGINACEAE	FALSE PIMPERNEL	native	
Linnaea borealis	LINNAEACEAE	TWIN FLOWER	native	
Linnaea borealis var. longiflora	LINNAEACEAE	TWIN FLOWER	native	
Linum bienne	LINACEAE	FLAX	naturalized	
Linum grandiflorum	LINACEAE	FLAX	naturalized	
Linum lewisii	LINACEAE	FLAX	native	
Linum lewisii var. alpicola	LINACEAE	FLAX	native	
Linum lewisii var. lewisii	LINACEAE	FLAX	native	
Linum puberulum	LINACEAE	FLAX	native	
Linum trigynum	LINACEAE		naturalized	acceptance uncertain
Linum usitatissimum	LINACEAE	COMMON FLAX	naturalized	
Lipocarpha aristulata	CYPERACEAE		native	
Lipocarpha micrantha	CYPERACEAE		native	
Lipocarpha occidentalis	CYPERACEAE		native	
Listera banksiana	ORCHIDACEAE		native	
Listera convallarioides	ORCHIDACEAE	BROAD-LEAVED TWAYBLADE	native	
Listera cordata	ORCHIDACEAE	HEART-LEAVED TWAYBLADE	native	
Lithophragma affine	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma bolanderi	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma campanulatum	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma cymbalaria	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma glabrum	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma heterophyllum	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma maximum	SAXIFRAGACEAE	SAN CLEMENTE ISLAND WOODLAND STAR	native	
Lithophragma parviflorum	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma parviflorum var. parviflorum	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma parviflorum var. trifoliatum	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithophragma tenellum	SAXIFRAGACEAE	WOODLAND STAR	native	
Lithospermum arvense	BORAGINACEAE	GROMWELL	naturalized	
Lithospermum californicum	BORAGINACEAE	STONESEED	native	
Lithospermum incisum	BORAGINACEAE	STONESEED	native	
Lithospermum ruderale	BORAGINACEAE	STONESEED	native	
Lobelia cardinalis	CAMPANULACEAE		native	
Lobelia cardinalis var. pseudosplendens	CAMPANULACEAE	CARDINAL FLOWER	native	
Lobelia dunnii	CAMPANULACEAE		native	
Lobelia dunnii var. serrata	CAMPANULACEAE		native	
Lobularia maritima	BRASSICACEAE	SWEET ALYSSUM	naturalized	
Loeflingia squarrosa	CARYOPHYLLACEAE		native	
Loeseliastrum depressum	POLEMONIACEAE		native	acceptance uncertain
Loeseliastrum matthewsii	POLEMONIACEAE	DESERT CALICO	native	
Loeseliastrum schottii	POLEMONIACEAE		native	
Logfia arizonica	ASTERACEAE		native	
Logfia depressa	ASTERACEAE		native	
Logfia filaginoides	ASTERACEAE		native	
Logfia gallica	ASTERACEAE		naturalized	
Lolium multiflorum	POACEAE	ITALIAN RYEGRASS	naturalized	
Lolium perenne	POACEAE	PERENNIAL RYEGRASS	naturalized	
Lolium temulentum	POACEAE	DARNEL	naturalized	
Lomatium bicolor	APIACEAE		native	
Lomatium bicolor var. leptocarpum	APIACEAE		native	
Lomatium californicum	APIACEAE		native	
Lomatium canbyi	APIACEAE		native	
Lomatium caruifolium	APIACEAE		native	
Lomatium caruifolium var. caruifolium	APIACEAE		native	
Lomatium caruifolium var. denticulatum	APIACEAE		native	
Lomatium ciliolatum	APIACEAE		native	
Lomatium ciliolatum var. ciliolatum	APIACEAE		native	
Lomatium congdonii	APIACEAE	CONGDON'S LOMATIUM	native	
Lomatium dasycarpum	APIACEAE		native	
Lomatium dasycarpum subsp. dasycarpum	APIACEAE		native	
Lomatium dasycarpum subsp. tomentosum	APIACEAE		native	
Lomatium dissectum	APIACEAE		native	
Lomatium dissectum var. dissectum	APIACEAE		native	
Lomatium dissectum var. multifidum	APIACEAE		native	
Lomatium engelmannii	APIACEAE	ENGELMANN'S LOMATIUM	native	
Lomatium foeniculaceum	APIACEAE		native	
Lomatium foeniculaceum subsp. fimbriatum	APIACEAE		native	
Lomatium foeniculaceum subsp. inyoense	APIACEAE	INYO LOMATIUM	native	
Lomatium grayi	APIACEAE		native	
Lomatium hallii	APIACEAE		native	
Lomatium hendersonii	APIACEAE		native	
Lomatium hooveri	APIACEAE		native	
Lomatium howellii	APIACEAE	HOWELL'S LOMATIUM	native	
Lomatium insulare	APIACEAE	SAN NICOLAS ISLAND LOMATIUM	native	
Lomatium lucidum	APIACEAE		native	
Lomatium macrocarpum	APIACEAE		native	
Lomatium marginatum	APIACEAE		native	
Lomatium marginatum var. marginatum	APIACEAE		native	
Lomatium marginatum var. purpureum	APIACEAE		native	
Lomatium martindalei	APIACEAE	COAST RANGE LOMATIUM	native	
Lomatium mohavense	APIACEAE		native	
Lomatium nevadense	APIACEAE		native	
Lomatium nevadense var. nevadense	APIACEAE		native	
Lomatium nevadense var. parishii	APIACEAE		native	
Lomatium nudicaule	APIACEAE		native	
Lomatium observatorium	APIACEAE		native	
Lomatium parryi	APIACEAE		native	
Lomatium parvifolium	APIACEAE	SMALL-LEAVED LOMATIUM	native	
Lomatium peckianum	APIACEAE	PECK'S LOMATIUM	native	
Lomatium piperi	APIACEAE		native	
Lomatium plummerae	APIACEAE		native	
Lomatium ravenii	APIACEAE	RAVEN'S LOMATIUM	native	
Lomatium repostum	APIACEAE	NAPA LOMATIUM	native	
Lomatium rigidum	APIACEAE	STIFF LOMATIUM	native	
Lomatium shevockii	APIACEAE	OWENS PEAK LOMATIUM	native	
Lomatium stebbinsii	APIACEAE	STEBBINS' LOMATIUM	native	
Lomatium torreyi	APIACEAE		native	
Lomatium tracyi	APIACEAE	TRACY'S LOMATIUM	native	
Lomatium triternatum	APIACEAE		native	
Lomatium triternatum var. macrocarpum	APIACEAE		native	
Lomatium triternatum var. triternatum	APIACEAE		native	
Lomatium utriculatum	APIACEAE		native	
Lomatium vaginatum	APIACEAE		native	
Lonicera cauriana	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera ciliosa	CAPRIFOLIACEAE	ORANGE HONEYSUCKLE	native	
Lonicera conjugialis	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera etrusca	CAPRIFOLIACEAE	HONEYSUCKLE	naturalized	
Lonicera hispidula	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera interrupta	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera involucrata	CAPRIFOLIACEAE	TWINBERRY	native	
Lonicera involucrata var. involucrata	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera involucrata var. ledebourii	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera japonica	CAPRIFOLIACEAE	JAPANESE HONEYSUCKLE	naturalized	
Lonicera subspicata	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera subspicata var. denudata	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera subspicata var. subspicata	CAPRIFOLIACEAE	HONEYSUCKLE	native	
Lonicera tatarica	CAPRIFOLIACEAE	HONEYSUCKLE	naturalized	
Lotus aboriginus	FABACEAE		native	
Lotus angustissimus	FABACEAE		naturalized	
Lotus argophyllus	FABACEAE		native	
Lotus argophyllus var. adsurgens	FABACEAE	SAN CLEMENTE ISLAND BIRD'S-FOOT TREFOIL	native	
Lotus argophyllus var. argenteus	FABACEAE		native	
Lotus argophyllus var. argophyllus	FABACEAE		native	
Lotus argophyllus var. fremontii	FABACEAE		native	
Lotus argophyllus var. niveus	FABACEAE	SANTA CRUZ ISLAND BIRD'S-FOOT TREFOIL	native	
Lotus argyraeus	FABACEAE		native	
Lotus argyraeus var. argyraeus	FABACEAE		native	
Lotus argyraeus var. multicaulis	FABACEAE		native	
Lotus argyraeus var. notitius	FABACEAE		native	
Lotus benthamii	FABACEAE		native	
Lotus corniculatus	FABACEAE	BIRDFOOT TREFOIL	naturalized	
Lotus crassifolius	FABACEAE		native	
Lotus crassifolius var. crassifolius	FABACEAE		native	
Lotus crassifolius var. otayensis	FABACEAE	OTAY MOUNTAIN LOTUS	native	
Lotus dendroideus	FABACEAE		native	
Lotus dendroideus var. dendroideus	FABACEAE	ISLAND BROOM	native	
Lotus dendroideus var. traskiae	FABACEAE	TRASK'S ISLAND LOTUS	native	
Lotus dendroideus var. veatchii	FABACEAE	SAN MIGUEL ISLAND DEERWEED	native	
Lotus denticulatus	FABACEAE		native	
Lotus formosissimus	FABACEAE		native	
Lotus grandiflorus	FABACEAE		native	
Lotus grandiflorus var. grandiflorus	FABACEAE		native	
Lotus grandiflorus var. macranthus	FABACEAE		native	
Lotus hamatus	FABACEAE		native	
Lotus haydonii	FABACEAE	HAYDON'S LOTUS	native	
Lotus heermannii	FABACEAE		native	
Lotus heermannii var. heermannii	FABACEAE		native	
Lotus heermannii var. orbicularis	FABACEAE		native	
Lotus humistratus	FABACEAE		native	
Lotus incanus	FABACEAE		native	
Lotus junceus	FABACEAE		native	
Lotus junceus var. biolettii	FABACEAE		native	
Lotus junceus var. junceus	FABACEAE		native	
Lotus micranthus	FABACEAE		native	
Lotus nevadensis	FABACEAE		native	
Lotus nevadensis var. davidsonii	FABACEAE		native	
Lotus nevadensis var. nevadensis	FABACEAE		native	
Lotus nuttallianus	FABACEAE	NUTTALL'S LOTUS	native	
Lotus oblongifolius	FABACEAE		native	
Lotus oblongifolius var. cupreus	FABACEAE	COPPER-FLOWERED BIRD'S-FOOT TREFOIL	native	
Lotus oblongifolius var. oblongifolius	FABACEAE		native	
Lotus pinnatus	FABACEAE		native	
Lotus procumbens	FABACEAE		native	
Lotus procumbens var. jepsonii	FABACEAE		native	
Lotus procumbens var. procumbens	FABACEAE		native	
Lotus purshianus	FABACEAE		native	acceptance uncertain
Lotus purshianus var. purshianus	FABACEAE		native	acceptance uncertain
Lotus rigidus	FABACEAE		native	
Lotus rubriflorus	FABACEAE	RED-FLOWERED BIRD'S-FOOT TREFOIL	native	
Lotus salsuginosus	FABACEAE		native	
Lotus salsuginosus var. brevivexillus	FABACEAE		native	
Lotus salsuginosus var. salsuginosus	FABACEAE		native	
Lotus scoparius	FABACEAE	CALIFORNIA BROOM	native	
Lotus scoparius var. brevialatus	FABACEAE		native	
Lotus scoparius var. scoparius	FABACEAE		native	
Lotus stipularis	FABACEAE		native	
Lotus stipularis var. ottleyi	FABACEAE		native	
Lotus stipularis var. stipularis	FABACEAE		native	
Lotus strigosus	FABACEAE		native	
Lotus uliginosus	FABACEAE		naturalized	acceptance uncertain
Lotus wrangelianus	FABACEAE		native	acceptance uncertain
Lotus yollabolliensis	FABACEAE	YOLLA BOLLY MOUNTAINS BIRD'S-FOOT TREFOIL	native	
Ludwigia hexapetala	ONAGRACEAE	FALSE LOOSESTRIFE; WATER PRIMROSE	native	
Ludwigia palustris	ONAGRACEAE	FALSE LOOSESTRIFE; WATER PRIMROSE	native	
Ludwigia peploides	ONAGRACEAE	FALSE LOOSESTRIFE; WATER PRIMROSE	native	
Ludwigia peploides subsp. montevidensis	ONAGRACEAE	FALSE LOOSESTRIFE; WATER PRIMROSE	naturalized	
Ludwigia peploides subsp. peploides	ONAGRACEAE	FALSE LOOSESTRIFE; WATER PRIMROSE	native	
Ludwigia repens	ONAGRACEAE	FALSE LOOSESTRIFE; WATER PRIMROSE	native	
Luetkea pectinata	ROSACEAE		native	
Luina hypoleuca	ASTERACEAE		native	
Lunaria annua	BRASSICACEAE	MOONWORT	naturalized	
Lupinus adsurgens	FABACEAE	LUPINE	native	
Lupinus affinis	FABACEAE	LUPINE	native	
Lupinus albicaulis	FABACEAE	LUPINE	native	
Lupinus albifrons	FABACEAE	LUPINE	native	
Lupinus albifrons var. abramsii	FABACEAE	ABRAMS' LUPINE	native	
Lupinus albifrons var. albifrons	FABACEAE	LUPINE	native	
Lupinus albifrons var. collinus	FABACEAE	LUPINE	native	
Lupinus albifrons var. douglasii	FABACEAE	LUPINE	native	
Lupinus andersonii	FABACEAE	LUPINE	native	
Lupinus angustiflorus	FABACEAE	LUPINE	native	
Lupinus antoninus	FABACEAE	ANTHONY PEAK LUPINE	native	
Lupinus apertus	FABACEAE	LUPINE	native	
Lupinus arboreus	FABACEAE	YELLOW BUSH LUPINE	native	
Lupinus arbustus	FABACEAE	SPUR LUPINE	native	
Lupinus argenteus	FABACEAE	LUPINE	native	
Lupinus argenteus var. argenteus	FABACEAE	LUPINE	native	
Lupinus argenteus var. heteranthus	FABACEAE	LUPINE	native	
Lupinus argenteus var. holosericeus	FABACEAE		native	acceptance uncertain
Lupinus argenteus var. meionanthus	FABACEAE	LUPINE	native	
Lupinus argenteus var. montigenus	FABACEAE	LUPINE	native	
Lupinus argenteus var. palmeri	FABACEAE	LUPINE	native	
Lupinus arizonicus	FABACEAE	ARIZONA LUPINE	native	
Lupinus benthamii	FABACEAE	SPIDER LUPINE	native	
Lupinus bicolor	FABACEAE	MINIATURE LUPINE	native	
Lupinus brevicaulis	FABACEAE	SAND LUPINE	native	
Lupinus breweri	FABACEAE	LUPINE	native	
Lupinus breweri var. breweri	FABACEAE	LUPINE	native	
Lupinus breweri var. bryoides	FABACEAE	LUPINE	native	
Lupinus breweri var. grandiflorus	FABACEAE	LUPINE	native	
Lupinus cervinus	FABACEAE	SANTA LUCIA LUPINE	native	
Lupinus chamissonis	FABACEAE	LUPINE	native	
Lupinus citrinus	FABACEAE	LUPINE	native	
Lupinus citrinus var. citrinus	FABACEAE	ORANGE LUPINE	native	
Lupinus citrinus var. deflexus	FABACEAE	MARIPOSA LUPINE	native	
Lupinus concinnus	FABACEAE	BAJADA LUPINE	native	
Lupinus constancei	FABACEAE	THE LASSICS LUPINE	native	
Lupinus covillei	FABACEAE	LUPINE	native	
Lupinus croceus	FABACEAE	LUPINE	native	
Lupinus dalesiae	FABACEAE	QUINCY LUPINE	native	
Lupinus duranii	FABACEAE	MONO LAKE LUPINE	native	
Lupinus elatus	FABACEAE	SILKY LUPINE	native	
Lupinus elmeri	FABACEAE	LUPINE	native	
Lupinus excubitus	FABACEAE	GRAPE SODA LUPINE	native	
Lupinus excubitus var. austromontanus	FABACEAE	LUPINE	native	
Lupinus excubitus var. excubitus	FABACEAE	LUPINE	native	
Lupinus excubitus var. hallii	FABACEAE	LUPINE	native	
Lupinus excubitus var. johnstonii	FABACEAE	INTERIOR BUSH LUPINE	native	
Lupinus excubitus var. medius	FABACEAE	MOUNTAIN SPRINGS BUSH LUPINE	native	
Lupinus flavoculatus	FABACEAE	LUPINE	native	
Lupinus formosus	FABACEAE	LUPINE	native	
Lupinus formosus var. formosus	FABACEAE	LUPINE	native	
Lupinus formosus var. robustus	FABACEAE	LUPINE	native	
Lupinus fulcratus	FABACEAE	LUPINE	native	
Lupinus gracilentus	FABACEAE	SLENDER LUPINE	native	
Lupinus grayi	FABACEAE	LUPINE	native	
Lupinus guadalupensis	FABACEAE	GUADALUPE ISLAND LUPINE	native	
Lupinus hirsutissimus	FABACEAE	STINGING LUPINE	native	
Lupinus holmgrenianus	FABACEAE	HOLMGREN'S LUPINE	native	
Lupinus hyacinthinus	FABACEAE	LUPINE	native	
Lupinus lapidicola	FABACEAE	MOUNT EDDY LUPINE	native	
Lupinus latifolius	FABACEAE	LUPINE	native	
Lupinus latifolius var. barbatus	FABACEAE	LUPINE	native	
Lupinus latifolius var. columbianus	FABACEAE	LUPINE	native	
Lupinus latifolius var. dudleyi	FABACEAE	LUPINE	native	
Lupinus latifolius var. latifolius	FABACEAE	LUPINE	native	
Lupinus latifolius var. parishii	FABACEAE	LUPINE	native	
Lupinus latifolius var. viridifolius	FABACEAE	LUPINE	native	
Lupinus lepidus	FABACEAE	DWARF LUPINE	native	
Lupinus lepidus var. confertus	FABACEAE	LUPINE	native	
Lupinus lepidus var. culbertsonii	FABACEAE	HOCKETT MEADOWS LUPINE	native	
Lupinus lepidus var. lobbii	FABACEAE	LUPINE	native	
Lupinus lepidus var. ramosus	FABACEAE	LUPINE	native	
Lupinus lepidus var. sellulus	FABACEAE	LUPINE	native	
Lupinus lepidus var. utahensis	FABACEAE	LUPINE	native	
Lupinus leucophyllus	FABACEAE	LUPINE	native	
Lupinus littoralis	FABACEAE	LUPINE	native	
Lupinus longifolius	FABACEAE	LUPINE	native	
Lupinus ludovicianus	FABACEAE	SAN LUIS OBISPO COUNTY LUPINE	native	
Lupinus luteolus	FABACEAE	BUTTER LUPINE	native	
Lupinus magnificus	FABACEAE	PANAMINT MOUNTAINS LUPINE	native	
Lupinus microcarpus	FABACEAE	CHICK LUPINE	native	
Lupinus microcarpus var. densiflorus	FABACEAE	LUPINE	native	
Lupinus microcarpus var. horizontalis	FABACEAE	LUPINE	native	
Lupinus microcarpus var. microcarpus	FABACEAE	LUPINE	native	
Lupinus nanus	FABACEAE	LUPINE	native	
Lupinus nevadensis	FABACEAE	LUPINE	native	
Lupinus nipomensis	FABACEAE	NIPOMO MESA LUPINE	native	
Lupinus obtusilobus	FABACEAE	LUPINE	native	
Lupinus odoratus	FABACEAE	MOJAVE LUPINE	native	
Lupinus onustus	FABACEAE	LUPINE	native	
Lupinus pachylobus	FABACEAE	BIG POD LUPINE	native	
Lupinus padre-crowleyi	FABACEAE	FATHER CROWLEY'S LUPINE	native	
Lupinus peirsonii	FABACEAE	PEIRSON'S LUPINE	native	
Lupinus polyphyllus	FABACEAE	LUPINE	native	
Lupinus polyphyllus var. burkei	FABACEAE	LUPINE	native	
Lupinus polyphyllus var. pallidipes	FABACEAE	LUPINE	native	
Lupinus polyphyllus var. polyphyllus	FABACEAE	LUPINE	native	
Lupinus pratensis	FABACEAE	LUPINE	native	
Lupinus pratensis var. eriostachyus	FABACEAE	LUPINE	native	
Lupinus pratensis var. pratensis	FABACEAE	LUPINE	native	
Lupinus prunophilus	FABACEAE		native	acceptance uncertain
Lupinus pusillus	FABACEAE	LUPINE	native	
Lupinus pusillus var. intermontanus	FABACEAE	LUPINE	native	
Lupinus rivularis	FABACEAE	LUPINE	native	
Lupinus saxosus	FABACEAE	LUPINE	native	
Lupinus sericatus	FABACEAE	COBB MOUNTAIN LUPINE	native	
Lupinus shockleyi	FABACEAE	DESERT LUPINE	native	
Lupinus sparsiflorus	FABACEAE	COULTER'S LUPINE	native	
Lupinus spectabilis	FABACEAE	SHAGGYHAIR LUPINE	native	
Lupinus stiversii	FABACEAE	HARLEQUIN LUPINE	native	
Lupinus succulentus	FABACEAE	ARROYO LUPINE	native	
Lupinus tidestromii	FABACEAE	TIDESTROM'S LUPINE	native	
Lupinus tracyi	FABACEAE	TRACY'S LUPINE	native	
Lupinus truncatus	FABACEAE	LUPINE	native	
Lupinus uncialis	FABACEAE		native	
Lupinus variicolor	FABACEAE	LUPINE	native	
Luzula comosa	JUNCACEAE	HAIRY WOOD RUSH	native	
Luzula divaricata	JUNCACEAE	HAIRY WOOD RUSH	native	
Luzula orestera	JUNCACEAE	HAIRY WOOD RUSH	native	
Luzula parviflora	JUNCACEAE	HAIRY WOOD RUSH	native	
Luzula spicata	JUNCACEAE	HAIRY WOOD RUSH	native	
Luzula subcongesta	JUNCACEAE	HAIRY WOOD RUSH	native	
Lychnis coronaria	CARYOPHYLLACEAE	MULLEIN PINK; ROSE CAMPION	naturalized	
Lycium andersonii	SOLANACEAE	BOX THORN	native	
Lycium barbarum	SOLANACEAE	MATRIMONY VINE	naturalized	
Lycium brevipes	SOLANACEAE	BOX THORN	native	
Lycium brevipes var. brevipes	SOLANACEAE	BOX THORN	native	
Lycium brevipes var. hassei	SOLANACEAE	SANTA CATALINA ISLAND DESERT-THORN	native	
Lycium californicum	SOLANACEAE	BOX THORN	native	
Lycium cooperi	SOLANACEAE	BOX THORN	native	
Lycium ferocissimum	SOLANACEAE		naturalized	acceptance uncertain
Lycium fremontii	SOLANACEAE	BOX THORN	native	
Lycium pallidum	SOLANACEAE	BOX THORN	native	
Lycium pallidum var. oligospermum	SOLANACEAE	BOX THORN	native	
Lycium parishii	SOLANACEAE	PARISH'S DESERT-THORN	native	
Lycium torreyi	SOLANACEAE	BOX THORN	native	
Lycopersicon esculentum	SOLANACEAE	TOMATO	naturalized	
Lycopersicon peruvianum	SOLANACEAE	TOMATO	naturalized	
Lycopodiella inundata	LYCOPODIACEAE	BOG CLUB-MOSS	native	
Lycopodium clavatum	LYCOPODIACEAE	RUNNING-PINE	native	
Lycopus americanus	LAMIACEAE	BUGLEWEED	native	
Lycopus asper	LAMIACEAE	BUGLEWEED	native	
Lycopus uniflorus	LAMIACEAE	NORTHERN BUGLEWEED	native	
Lyonothamnus floribundus	ROSACEAE	CATALINA IRONWOOD	native	
Lyonothamnus floribundus subsp. aspleniifolius	ROSACEAE	FERN-LEAVED CATALINA IRONWOOD	native	
Lyonothamnus floribundus subsp. floribundus	ROSACEAE	SANTA CATALINA ISLAND IRONWOOD	native	
Lyrocarpa coulteri	BRASSICACEAE		native	
Lyrocarpa coulteri var. palmeri	BRASSICACEAE	COULTER'S LYREPOD	native	
Lysichiton americanus	ARACEAE	YELLOW SKUNK CABBAGE	native	
Lysimachia nummularia	MYRSINACEAE	MONEYWORT	naturalized	
Lysimachia thyrsiflora	MYRSINACEAE	TUFTED LOOSESTRIFE	native	
Lythrum californicum	LYTHRACEAE	CALIFORNIA LOOSESTRIFE	native	
Lythrum hyssopifolia	LYTHRACEAE		naturalized	
Lythrum portula	LYTHRACEAE		naturalized	
Lythrum salicaria	LYTHRACEAE	PURPLE LOOSESTRIFE	naturalized	
Lythrum tribracteatum	LYTHRACEAE		naturalized	
Machaeranthera tanacetifolia	ASTERACEAE		native	
Maclura pomifera	MORACEAE	OSAGE ORANGE	naturalized	
Madia anomala	ASTERACEAE	TARWEED	native	
Madia citrigracilis	ASTERACEAE	TARWEED	native	
Madia citriodora	ASTERACEAE	LEMON-SCENTED TARWEED	native	
Madia elegans	ASTERACEAE	COMMON MADIA	native	
Madia exigua	ASTERACEAE	THREADSTEM MADIA	native	
Madia glomerata	ASTERACEAE	MOUNTAIN TARWEED	native	
Madia gracilis	ASTERACEAE	SLENDER TARWEED	native	
Madia radiata	ASTERACEAE	SHOWY MADIA	native	
Madia sativa	ASTERACEAE	COAST TARWEED	native	
Madia subspicata	ASTERACEAE	TARWEED	native	
Maianthemum dilatatum	RUSCACEAE	FALSE LILY-OF-THE-VALLEY	native	
Maianthemum racemosum	RUSCACEAE		native	
Maianthemum stellatum	RUSCACEAE		native	
Malacothamnus abbottii	MALVACEAE	ABBOTT'S BUSH MALLOW	native	
Malacothamnus aboriginum	MALVACEAE	INDIAN VALLEY BUSH MALLOW	native	
Malacothamnus clementinus	MALVACEAE	SAN CLEMENTE ISLAND BUSH MALLOW	native	
Malacothamnus davidsonii	MALVACEAE	DAVIDSON'S BUSH MALLOW	native	
Malacothamnus densiflorus	MALVACEAE	BUSH MALLOW	native	
Malacothamnus fasciculatus	MALVACEAE	CHAPARRAL MALLOW	native	
Malacothamnus fasciculatus var. fasciculatus	MALVACEAE		native	
Malacothamnus fasciculatus var. nesioticus	MALVACEAE		native	
Malacothamnus fasciculatus var. nuttallii	MALVACEAE		native	
Malacothamnus fremontii	MALVACEAE	BUSH MALLOW	native	
Malacothamnus hallii	MALVACEAE		native	
Malacothamnus jonesii	MALVACEAE	JONES' BUSH MALLOW	native	
Malacothamnus marrubioides	MALVACEAE	BUSH MALLOW	native	
Malacothamnus orbiculatus	MALVACEAE		native	
Malacothamnus palmeri	MALVACEAE	SANTA LUCIA BUSH MALLOW	native	
Malacothamnus palmeri var. involucratus	MALVACEAE		native	
Malacothamnus palmeri var. palmeri	MALVACEAE		native	
Malacothrix californica	ASTERACEAE		native	
Malacothrix clevelandii	ASTERACEAE		native	
Malacothrix coulteri	ASTERACEAE	SNAKE'S-HEAD	native	
Malacothrix floccifera	ASTERACEAE		native	
Malacothrix foliosa	ASTERACEAE	LEAFY MALACOTHRIX	native	
Malacothrix foliosa subsp. crispifolia	ASTERACEAE		native	
Malacothrix foliosa subsp. foliosa	ASTERACEAE		native	
Malacothrix foliosa subsp. philbrickii	ASTERACEAE		native	
Malacothrix foliosa subsp. polycephala	ASTERACEAE		native	
Malacothrix glabrata	ASTERACEAE	DESERT DANDELION	native	
Malacothrix incana	ASTERACEAE	DUNEDELION	native	
Malacothrix indecora	ASTERACEAE	SANTA CRUZ ISLAND MALACOTHRIX	native	
Malacothrix junakii	ASTERACEAE		native	
Malacothrix phaeocarpa	ASTERACEAE		native	
Malacothrix saxatilis	ASTERACEAE		native	
Malacothrix saxatilis var. arachnoidea	ASTERACEAE	CARMEL VALLEY MALACOTHRIX	native	
Malacothrix saxatilis var. commutata	ASTERACEAE		native	
Malacothrix saxatilis var. implicata	ASTERACEAE		native	
Malacothrix saxatilis var. saxatilis	ASTERACEAE		native	
Malacothrix saxatilis var. tenuifolia	ASTERACEAE		native	
Malacothrix similis	ASTERACEAE		native	
Malacothrix sonchoides	ASTERACEAE		native	
Malacothrix squalida	ASTERACEAE	ISLAND MALACOTHRIX	native	
Malacothrix stebbinsii	ASTERACEAE		native	
Malacothrix torreyi	ASTERACEAE		native	
Malaxis monophyllos	ORCHIDACEAE		native	
Malaxis monophyllos var. brachypoda	ORCHIDACEAE		native	
Malcolmia africana	BRASSICACEAE		naturalized	
Malcolmia graeca	BRASSICACEAE		naturalized	acceptance uncertain
Malephora crocea	AIZOACEAE		naturalized	
Malosma laurina	ANACARDIACEAE	LAUREL SUMAC	native	
Malperia tenuis	ASTERACEAE	BROWN TURBANS	native	
Malus fusca	ROSACEAE	OREGON CRAB APPLE	native	
Malus sylvestris	ROSACEAE	APPLE	naturalized	
Malva arborea	MALVACEAE		naturalized	
Malva neglecta	MALVACEAE	CHEESES; COMMON MALLOW	naturalized	
Malva nicaeensis	MALVACEAE	BULL MALLOW	naturalized	
Malva parviflora	MALVACEAE	CHEESEWEED; LITTLE MALLOW	naturalized	
Malva pseudolavatera	MALVACEAE		naturalized	
Malva sylvestris	MALVACEAE	HIGH MALLOW	naturalized	
Malvella leprosa	MALVACEAE	ALKALI-MALLOW; WHITE-WEED	native	
Mammillaria dioica	CACTACEAE	FISH-HOOK CACTUS; NIPPLE CACTUS	native	
Mammillaria grahamii	CACTACEAE	FISH-HOOK CACTUS; NIPPLE CACTUS	native	acceptance uncertain
Mammillaria grahamii var. grahamii	CACTACEAE	FISH-HOOK CACTUS; NIPPLE CACTUS	native	
Mammillaria tetrancistra	CACTACEAE	FISH-HOOK CACTUS; NIPPLE CACTUS	native	
Marah fabaceus	CUCURBITACEAE	CALIFORNIA MAN-ROOT	native	
Marah horridus	CUCURBITACEAE	MAN-ROOT; WILD CUCUMBER	native	
Marah macrocarpus	CUCURBITACEAE	MAN-ROOT; WILD CUCUMBER	native	
Marah macrocarpus var. macrocarpus	CUCURBITACEAE	MAN-ROOT; WILD CUCUMBER	native	
Marah macrocarpus var. major	CUCURBITACEAE	MAN-ROOT; WILD CUCUMBER	native	
Marah oreganus	CUCURBITACEAE	COAST MAN-ROOT	native	
Marah watsonii	CUCURBITACEAE	MAN-ROOT; WILD CUCUMBER	native	
Marina orcuttii	FABACEAE		native	
Marina orcuttii var. orcuttii	FABACEAE	CALIFORNIA MARINA	native	
Marina parryi	FABACEAE		native	
Marrubium vulgare	LAMIACEAE	HOREHOUND	naturalized	
Marsilea drummondii	MARSILEACEAE		naturalized	
Marsilea oligospora	MARSILEACEAE		native	
Marsilea vestita	MARSILEACEAE		native	
Marsilea vestita subsp. vestita	MARSILEACEAE		native	
Matelea parvifolia	APOCYNACEAE	SPEARLEAF; TALAYOTE	native	
Matricaria matricarioides	ASTERACEAE		native	
Matricaria occidentalis	ASTERACEAE		native	
Matthiola incana	BRASSICACEAE	STOCK	naturalized	
Maurandella antirrhiniflora	PLANTAGINACEAE		native	
Maytenus boaria	CELASTRACEAE		naturalized	
Meconella californica	PAPAVERACEAE		native	
Meconella denticulata	PAPAVERACEAE		native	
Meconella oregana	PAPAVERACEAE		native	
Medicago arabica	FABACEAE	BURCLOVER; SPOTTED BURCLOVER	naturalized	
Medicago lupulina	FABACEAE	BLACK MEDICK; YELLOW TREFOIL	naturalized	
Medicago minima	FABACEAE	BURCLOVER	naturalized	
Medicago polymorpha	FABACEAE	CALIFORNIA BURCLOVER	naturalized	
Medicago praecox	FABACEAE		naturalized	
Medicago sativa	FABACEAE	ALFALFA; LUCERNE	naturalized	
Melaleuca viminalis	MYRTACEAE		naturalized	
Melia azedarach	MELIACEAE	CHINA BERRY; PERSIAN LILAC	naturalized	
Melica aristata	POACEAE	AWNED MELIC	native	
Melica bulbosa	POACEAE	ONIONGRASS	native	
Melica californica	POACEAE	CALIFORNIA MELIC	native	
Melica frutescens	POACEAE	MELIC; ONIONGRASS	native	
Melica fugax	POACEAE	MELIC; ONIONGRASS	native	
Melica geyeri	POACEAE	MELIC; ONIONGRASS	native	
Melica harfordii	POACEAE	MELIC; ONIONGRASS	native	
Melica imperfecta	POACEAE	MELIC; ONIONGRASS	native	
Melica spectabilis	POACEAE	PURPLE ONIONGRASS	native	
Melica stricta	POACEAE	MELIC; ONIONGRASS	native	
Melica subulata	POACEAE	MELIC; ONIONGRASS	native	
Melica torreyana	POACEAE	MELIC; ONIONGRASS	native	
Melilotus albus	FABACEAE	WHITE SWEETCLOVER	naturalized	
Melilotus indicus	FABACEAE	SOURCLOVER	naturalized	
Melilotus officinalis	FABACEAE	YELLOW SWEETCLOVER	naturalized	
Melissa officinalis	LAMIACEAE	BEE BALM	naturalized	
Menodora scabra	OLEACEAE		native	
Menodora scoparia	OLEACEAE		native	
Menodora spinescens	OLEACEAE		native	
Mentha aquatica	LAMIACEAE		native	
Mentha arvensis	LAMIACEAE	MINT	native	
Mentha canadensis	LAMIACEAE		native	
Mentha pulegium	LAMIACEAE	PENNYROYAL	naturalized	
Mentha spicata	LAMIACEAE	MINT	naturalized	
Mentha spicata var. spicata	LAMIACEAE	SPEARMINT	naturalized	
Mentha suaveolens	LAMIACEAE	MINT	naturalized	
Mentha × piperita	LAMIACEAE	PEPPERMINT	naturalized	
Mentha × villosa	LAMIACEAE		naturalized	acceptance uncertain
Mentzelia affinis	LOASACEAE	BLAZING STAR	native	
Mentzelia albicaulis	LOASACEAE	BLAZING STAR	native	
Mentzelia congesta	LOASACEAE	BLAZING STAR	native	
Mentzelia crocea	LOASACEAE	BLAZING STAR	native	
Mentzelia desertorum	LOASACEAE	BLAZING STAR	native	
Mentzelia dispersa	LOASACEAE	BLAZING STAR	native	
Mentzelia eremophila	LOASACEAE	BLAZING STAR	native	
Mentzelia gracilenta	LOASACEAE	BLAZING STAR	native	
Mentzelia hirsutissima	LOASACEAE	BLAZING STAR	native	
Mentzelia involucrata	LOASACEAE	BLAZING STAR	native	
Mentzelia inyoensis	LOASACEAE	BLAZING STAR	native	
Mentzelia jonesii	LOASACEAE	BLAZING STAR	native	
Mentzelia laevicaulis	LOASACEAE	BLAZING STAR	native	
Mentzelia lindleyi	LOASACEAE	BLAZING STAR	native	
Mentzelia micrantha	LOASACEAE	BLAZING STAR	native	
Mentzelia montana	LOASACEAE	BLAZING STAR	native	
Mentzelia multiflora	LOASACEAE	BLAZING STAR	native	
Mentzelia multiflora subsp. longiloba	LOASACEAE	BLAZING STAR	native	
Mentzelia nitens	LOASACEAE	BLAZING STAR	native	
Mentzelia obscura	LOASACEAE	BLAZING STAR	native	
Mentzelia oreophila	LOASACEAE	BLAZING STAR	native	
Mentzelia pectinata	LOASACEAE	BLAZING STAR	native	
Mentzelia polita	LOASACEAE	BLAZING STAR	native	
Mentzelia pterosperma	LOASACEAE	BLAZING STAR	native	
Mentzelia reflexa	LOASACEAE	BLAZING STAR	native	
Mentzelia torreyi	LOASACEAE	BLAZING STAR	native	
Mentzelia tricuspis	LOASACEAE	BLAZING STAR	native	
Mentzelia tridentata	LOASACEAE	BLAZING STAR	native	
Mentzelia veatchiana	LOASACEAE	BLAZING STAR	native	
Menyanthes trifoliata	MENYANTHACEAE	BOGBEAN; BUCKBEAN	native	
Menziesia ferruginea	ERICACEAE	MOCK AZALEA	native	
Mercurialis annua	EUPHORBIACEAE	MERCURY	naturalized	
Mertensia bella	BORAGINACEAE	OREGON LUNGWORT	native	
Mertensia ciliata	BORAGINACEAE	STREAMSIDE BLUEBELLS	native	
Mertensia cusickii	BORAGINACEAE	TOIYABE BLUEBELLS	native	
Mertensia longiflora	BORAGINACEAE	LONG BLUEBELLS	native	
Mertensia oblongifolia	BORAGINACEAE	SAGEBRUSH BLUEBELLS	native	
Mertensia oblongifolia var. amoena	BORAGINACEAE	BLUEBELLS; LUNGWORT	native	
Mertensia oblongifolia var. nevadensis	BORAGINACEAE	BLUEBELLS; LUNGWORT	native	
Mertensia oblongifolia var. oblongifolia	BORAGINACEAE	BLUEBELLS; LUNGWORT	native	
Mesembryanthemum crystallinum	AIZOACEAE	CRYSTALLINE ICEPLANT	naturalized	
Mesembryanthemum nodiflorum	AIZOACEAE	SLENDER-LEAVED ICEPLANT	naturalized	
Micromonolepis pusilla	CHENOPODIACEAE		native	
Micropus amphibolus	ASTERACEAE	MOUNT DIABLO COTTONWEED	native	
Micropus californicus	ASTERACEAE	SLENDER COTTONWEED	native	
Micropus californicus var. californicus	ASTERACEAE		native	
Micropus californicus var. subvestitus	ASTERACEAE		native	
Microseris acuminata	ASTERACEAE		native	
Microseris bigelovii	ASTERACEAE		native	
Microseris borealis	ASTERACEAE	NORTHERN MICROSERIS	native	
Microseris campestris	ASTERACEAE		native	
Microseris douglasii	ASTERACEAE		native	
Microseris douglasii subsp. douglasii	ASTERACEAE		native	
Microseris douglasii subsp. platycarpha	ASTERACEAE		native	
Microseris douglasii subsp. tenella	ASTERACEAE		native	
Microseris elegans	ASTERACEAE		native	
Microseris laciniata	ASTERACEAE		native	
Microseris laciniata subsp. detlingii	ASTERACEAE		native	
Microseris laciniata subsp. laciniata	ASTERACEAE		native	
Microseris laciniata subsp. leptosepala	ASTERACEAE		native	
Microseris laciniata subsp. siskiyouensis	ASTERACEAE		native	
Microseris nutans	ASTERACEAE		native	
Microseris paludosa	ASTERACEAE		native	
Microseris sylvatica	ASTERACEAE		native	
Microsteris gracilis	POLEMONIACEAE		native	
Mimulus alsinoides	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus androsaceus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus angustatus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus aurantiacus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus aurantiacus var. aridus	PHRYMACEAE		native	
Mimulus aurantiacus var. aurantiacus	PHRYMACEAE		native	
Mimulus aurantiacus var. grandiflorus	PHRYMACEAE		native	
Mimulus aurantiacus var. parviflorus	PHRYMACEAE		native	
Mimulus aurantiacus var. pubescens	PHRYMACEAE		native	
Mimulus aurantiacus var. puniceus	PHRYMACEAE		native	
Mimulus bicolor	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus bigelovii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus bigelovii var. bigelovii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus bigelovii var. cuspidatus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus bolanderi	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus breviflorus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus brevipes	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus breweri	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus cardinalis	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus clevelandii	PHRYMACEAE	CLEVELAND'S BUSH MONKEYFLOWER	native	
Mimulus congdonii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus constrictus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus cusickii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus dentatus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus douglasii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus evanescens	PHRYMACEAE		native	
Mimulus exiguus	PHRYMACEAE	SAN BERNARDINO MOUNTAINS MONKEYFLOWER	native	
Mimulus filicaulis	PHRYMACEAE	SLENDER-STEMMED MONKEYFLOWER	native	
Mimulus floribundus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus fremontii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus fremontii var. fremontii	PHRYMACEAE		native	
Mimulus fremontii var. vandenbergensis	PHRYMACEAE		native	
Mimulus glaucescens	PHRYMACEAE	SHIELD-BRACTED MONKEYFLOWER	native	
Mimulus gracilipes	PHRYMACEAE	SLENDER-STALKED MONKEYFLOWER	native	
Mimulus guttatus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus inconspicuus	PHRYMACEAE	SMALL-FLOWERED MONKEYFLOWER	native	
Mimulus johnstonii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus kelloggii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus laciniatus	PHRYMACEAE	CUT-LEAVED MONKEYFLOWER	native	
Mimulus latidens	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus latifolius	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus layneae	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus leptaleus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus lewisii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus mohavensis	PHRYMACEAE	MOJAVE MONKEYFLOWER	native	
Mimulus montioides	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus moschatus	PHRYMACEAE	MUSK MONKEYFLOWER	native	
Mimulus nanus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus nanus var. jepsonii	PHRYMACEAE		native	
Mimulus nanus var. mephiticus	PHRYMACEAE		native	
Mimulus nanus var. nanus	PHRYMACEAE		native	
Mimulus norrisii	PHRYMACEAE	KAWEAH MONKEYFLOWER	native	
Mimulus nudatus	PHRYMACEAE	BARE MONKEYFLOWER	native	
Mimulus palmeri	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus parishii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus parryi	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus pictus	PHRYMACEAE	CALICO MONKEYFLOWER	native	
Mimulus pilosus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus primuloides	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus primuloides subsp. linearifolius	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus primuloides subsp. primuloides	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus pulchellus	PHRYMACEAE	PANSY MONKEYFLOWER	native	
Mimulus pulsiferae	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus purpureus	PHRYMACEAE	PURPLE MONKEYFLOWER	native	
Mimulus pygmaeus	PHRYMACEAE	EGG LAKE MONKEYFLOWER	native	
Mimulus rattanii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus ringens	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus rubellus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus rupicola	PHRYMACEAE	DEATH VALLEY MONKEYFLOWER	native	
Mimulus shevockii	PHRYMACEAE	KELSO CREEK MONKEYFLOWER	native	
Mimulus suksdorfii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus tilingii	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus torreyi	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus tricolor	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus viscidus	PHRYMACEAE	MONKEYFLOWER	native	
Mimulus viscidus var. compactus	PHRYMACEAE		native	
Mimulus viscidus var. viscidus	PHRYMACEAE		native	
Mimulus whitneyi	PHRYMACEAE	MONKEYFLOWER	native	
Minuartia californica	CARYOPHYLLACEAE	SANDWORT	native	
Minuartia cismontana	CARYOPHYLLACEAE		native	
Minuartia decumbens	CARYOPHYLLACEAE	THE LASSICS SANDWORT	native	
Minuartia douglasii	CARYOPHYLLACEAE	SANDWORT	native	
Minuartia howellii	CARYOPHYLLACEAE	HOWELL'S SANDWORT	native	
Minuartia nuttallii	CARYOPHYLLACEAE	SANDWORT	native	
Minuartia nuttallii var. fragilis	CARYOPHYLLACEAE		native	
Minuartia nuttallii var. gracilis	CARYOPHYLLACEAE		native	
Minuartia nuttallii var. gregaria	CARYOPHYLLACEAE		native	
Minuartia obtusiloba	CARYOPHYLLACEAE	ALPINE SANDWORT	native	
Minuartia pusilla	CARYOPHYLLACEAE	SANDWORT	native	
Minuartia rosei	CARYOPHYLLACEAE	PEANUT SANDWORT	native	
Minuartia rubella	CARYOPHYLLACEAE	SANDWORT	native	
Minuartia stolonifera	CARYOPHYLLACEAE	SCOTT MOUNTAIN SANDWORT	native	
Minuartia stricta	CARYOPHYLLACEAE	SANDWORT	native	
Mirabilis albida	NYCTAGINACEAE		native	
Mirabilis alipes	NYCTAGINACEAE	FOUR O'CLOCK	native	
Mirabilis coccinea	NYCTAGINACEAE	FOUR O'CLOCK	native	
Mirabilis greenei	NYCTAGINACEAE	FOUR O'CLOCK	native	
Mirabilis jalapa	NYCTAGINACEAE	FOUR-O'CLOCK	naturalized	
Mirabilis jalapa var. jalapa	NYCTAGINACEAE		naturalized	
Mirabilis laevis	NYCTAGINACEAE		native	
Mirabilis laevis var. crassifolia	NYCTAGINACEAE		native	
Mirabilis laevis var. retrorsa	NYCTAGINACEAE		native	
Mirabilis laevis var. villosa	NYCTAGINACEAE		native	
Mirabilis linearis	NYCTAGINACEAE	FOUR O'CLOCK	naturalized	
Mirabilis linearis var. linearis	NYCTAGINACEAE	FOUR O'CLOCK	naturalized	
Mirabilis multiflora	NYCTAGINACEAE	FOUR O'CLOCK	native	
Mirabilis multiflora var. glandulosa	NYCTAGINACEAE	FOUR O'CLOCK	native	
Mirabilis multiflora var. pubescens	NYCTAGINACEAE	FOUR O'CLOCK	native	
Mirabilis tenuiloba	NYCTAGINACEAE	LONG-LOBED FOUR O'CLOCK	native	
Miscanthus sinensis	POACEAE		naturalized	
Mitella breweri	SAXIFRAGACEAE	BISHOP'S CAP	native	
Mitella caulescens	SAXIFRAGACEAE	BISHOP'S CAP	native	
Mitella diversifolia	SAXIFRAGACEAE	BISHOP'S CAP	native	
Mitella ovalis	SAXIFRAGACEAE	BISHOP'S CAP	native	
Mitella pentandra	SAXIFRAGACEAE	BISHOP'S CAP	native	
Mitella trifida	SAXIFRAGACEAE	BISHOP'S CAP	native	
Modiola caroliniana	MALVACEAE		naturalized	
Moehringia macrophylla	CARYOPHYLLACEAE		native	
Moenchia erecta	CARYOPHYLLACEAE		naturalized	
Moenchia erecta subsp. erecta	CARYOPHYLLACEAE		naturalized	
Mohavea breviflora	PLANTAGINACEAE		native	
Mohavea confertiflora	PLANTAGINACEAE	GHOST FLOWER	native	
Mollugo cerviana	MOLLUGINACEAE	CARPET-WEED; INDIAN CHICKWEED	naturalized	
Mollugo verticillata	MOLLUGINACEAE	CARPET-WEED; INDIAN CHICKWEED	naturalized	
Moluccella laevis	LAMIACEAE	SHELL FLOWER	naturalized	
Monanthochloe littoralis	POACEAE	SHOREGRASS	native	
Monarda pectinata	LAMIACEAE	BEE BALM	native	
Monardella antonina	LAMIACEAE		native	
Monardella antonina subsp. antonina	LAMIACEAE	SAN ANTONIO HILLS MONARDELLA	native	
Monardella antonina subsp. benitensis	LAMIACEAE	SAN BENITO MONARDELLA	native	
Monardella australis	LAMIACEAE		native	
Monardella beneolens	LAMIACEAE	SWEET-SMELLING MONARDELLA	native	
Monardella breweri	LAMIACEAE		native	
Monardella candicans	LAMIACEAE		native	
Monardella cinerea	LAMIACEAE	GRAY MONARDELLA	native	
Monardella crispa	LAMIACEAE	CRISP MONARDELLA	native	
Monardella douglasii	LAMIACEAE		native	
Monardella douglasii subsp. douglasii	LAMIACEAE		native	
Monardella douglasii subsp. venosa	LAMIACEAE	VEINY MONARDELLA	native	
Monardella exilis	LAMIACEAE		native	
Monardella follettii	LAMIACEAE		native	
Monardella frutescens	LAMIACEAE	SAN LUIS OBISPO MONARDELLA	native	
Monardella glauca	LAMIACEAE		native	
Monardella hypoleuca	LAMIACEAE		native	
Monardella hypoleuca subsp. hypoleuca	LAMIACEAE		native	
Monardella hypoleuca subsp. lanata	LAMIACEAE	FELT-LEAVED MONARDELLA	native	
Monardella lanceolata	LAMIACEAE	MUSTANG MINT	native	
Monardella linoides	LAMIACEAE		native	
Monardella linoides subsp. linoides	LAMIACEAE		native	
Monardella linoides subsp. oblonga	LAMIACEAE	FLAX-LIKE MONARDELLA	native	
Monardella linoides subsp. stricta	LAMIACEAE		native	
Monardella linoides subsp. viminea	LAMIACEAE	WILLOWY MONARDELLA	native	acceptance uncertain
Monardella macrantha	LAMIACEAE		native	
Monardella macrantha subsp. hallii	LAMIACEAE	HALL'S MONARDELLA	native	
Monardella macrantha subsp. macrantha	LAMIACEAE		native	
Monardella nana	LAMIACEAE		native	
Monardella nana subsp. arida	LAMIACEAE		native	
Monardella nana subsp. leptosiphon	LAMIACEAE	SAN FELIPE MONARDELLA	native	
Monardella nana subsp. nana	LAMIACEAE		native	
Monardella nana subsp. tenuiflora	LAMIACEAE		native	
Monardella odoratissima	LAMIACEAE		native	
Monardella odoratissima subsp. odoratissima	LAMIACEAE		native	
Monardella odoratissima subsp. pallida	LAMIACEAE		native	
Monardella palmeri	LAMIACEAE	PALMER'S MONARDELLA	native	
Monardella purpurea	LAMIACEAE	SISKIYOU MONARDELLA	native	
Monardella robisonii	LAMIACEAE	ROBISON'S MONARDELLA	native	
Monardella sheltonii	LAMIACEAE		native	
Monardella siskiyouensis	LAMIACEAE		native	
Monardella stebbinsii	LAMIACEAE	STEBBINS' MONARDELLA	native	
Monardella stoneana	LAMIACEAE		native	acceptance uncertain
Monardella undulata	LAMIACEAE	CURLY-LEAVED MONARDELLA	native	
Monardella villosa	LAMIACEAE	COYOTE-MINT	native	
Monardella villosa subsp. franciscana	LAMIACEAE		native	
Monardella villosa subsp. globosa	LAMIACEAE		native	
Monardella villosa subsp. obispoensis	LAMIACEAE		native	
Monardella villosa subsp. villosa	LAMIACEAE		native	
Monardella viridis	LAMIACEAE		native	
Monardella viridis subsp. saxicola	LAMIACEAE	ROCK MONARDELLA	native	
Monardella viridis subsp. viridis	LAMIACEAE	GREEN MONARDELLA	native	
Moneses uniflora	ERICACEAE	WOODNYMPH	native	
Monochoria vaginalis	PONTEDERIACEAE		naturalized	
Monolepis nuttalliana	CHENOPODIACEAE	POVERTY WEED	native	
Monolepis spathulata	CHENOPODIACEAE	POVERTY WEED	native	
Monolopia congdonii	ASTERACEAE		native	
Monolopia gracilens	ASTERACEAE		native	
Monolopia lanceolata	ASTERACEAE		native	
Monolopia major	ASTERACEAE		native	
Monolopia stricta	ASTERACEAE		native	
Monoptilon bellidiforme	ASTERACEAE	DESERT STAR	native	
Monoptilon bellioides	ASTERACEAE	DESERT STAR	native	
Monotropa hypopithys	ERICACEAE	PINESAP	native	
Monotropa uniflora	ERICACEAE	INDIAN PIPE	native	
Montia chamissoi	MONTIACEAE	TOAD LILY	native	
Montia dichotoma	MONTIACEAE		native	
Montia diffusa	MONTIACEAE		native	
Montia fontana	MONTIACEAE	BLINKS; WATER CHICKWEED	native	
Montia howellii	MONTIACEAE		native	
Montia linearis	MONTIACEAE		native	
Montia parvifolia	MONTIACEAE		native	
Morella californica	MYRICACEAE		native	
Mortonia utahensis	CELASTRACEAE		native	
Morus alba	MORACEAE	WHITE MULBERRY	naturalized	
Mucronea californica	POLYGONACEAE	CALIFORNIA SPINEFLOWER	native	
Mucronea perfoliata	POLYGONACEAE	PERFOLIATE SPINEFLOWER	native	
Muehlenbeckia complexa	POLYGONACEAE	MAIDENHAIR VINE	naturalized	
Muehlenbeckia hastulata	POLYGONACEAE		naturalized	
Muehlenbeckia hastulata var. hastulata	POLYGONACEAE		naturalized	acceptance uncertain
Muhlenbergia alopecuroides	POACEAE		native	
Muhlenbergia andina	POACEAE	FOXTAIL MUHLY	native	
Muhlenbergia appressa	POACEAE	MUHLY	native	
Muhlenbergia arsenei	POACEAE	TOUGH MUHLY	native	
Muhlenbergia asperifolia	POACEAE	SCRATCHGRASS	native	
Muhlenbergia californica	POACEAE	CALIFORNIA MUHLY	native	
Muhlenbergia dumosa	POACEAE		native	acceptance uncertain
Muhlenbergia filiformis	POACEAE	PULL-UP MUHLY	native	
Muhlenbergia fragilis	POACEAE	DELICATE MUHLY	native	
Muhlenbergia jonesii	POACEAE	MUHLY	native	
Muhlenbergia mexicana	POACEAE	MUHLY	native	
Muhlenbergia microsperma	POACEAE	LITTLESEED MUHLY	native	
Muhlenbergia minutissima	POACEAE	MUHLY	native	
Muhlenbergia montana	POACEAE	MOUNTAIN MUHLY	native	
Muhlenbergia pauciflora	POACEAE	FEW-FLOWERED MUHLY	native	
Muhlenbergia porteri	POACEAE	MUHLY	native	
Muhlenbergia richardsonis	POACEAE	MAT MUHLY	native	
Muhlenbergia rigens	POACEAE	DEERGRASS	native	
Muhlenbergia schreberi	POACEAE	NIMBLEWELL	naturalized	
Muhlenbergia thurberi	POACEAE		native	acceptance uncertain
Muhlenbergia utilis	POACEAE	APAREJOGRASS	native	
Muilla clevelandii	THEMIDACEAE	SAN DIEGO GOLDENSTAR	native	
Muilla coronata	THEMIDACEAE	CROWNED MUILLA	native	
Muilla maritima	THEMIDACEAE	COMMON MUILLA	native	
Muilla transmontana	THEMIDACEAE		native	
Munroa squarrosa	POACEAE	FALSE BUFFALOGRASS	native	
Munzothamnus blairii	ASTERACEAE		native	
Muscari botryoides	LILIACEAE	GRAPE HYACINTH	naturalized	
Myoporum laetum	MYOPORACEAE		naturalized	
Myosotis discolor	BORAGINACEAE	FORGET-ME-NOT	naturalized	
Myosotis latifolia	BORAGINACEAE	FORGET-ME-NOT	naturalized	
Myosotis laxa	BORAGINACEAE	FORGET-ME-NOT	native	
Myosotis micrantha	BORAGINACEAE	FORGET-ME-NOT	naturalized	
Myosotis scorpioides	BORAGINACEAE	FORGET-ME-NOT	naturalized	
Myosotis verna	BORAGINACEAE	FORGET-ME-NOT	naturalized	
Myosurus apetalus	RANUNCULACEAE	MOUSE-TAIL	native	
Myosurus apetalus var. borealis	RANUNCULACEAE		native	
Myosurus apetalus var. montanus	RANUNCULACEAE		native	
Myosurus cupulatus	RANUNCULACEAE	MOUSE-TAIL	native	
Myosurus minimus	RANUNCULACEAE	MOUSE-TAIL	native	
Myosurus sessilis	RANUNCULACEAE	MOUSE-TAIL	native	
Myrica hartwegii	MYRICACEAE	SIERRA SWEET BAY	native	
Myriophyllum aquaticum	HALORAGACEAE	PARROT'S FEATHER	naturalized	
Myriophyllum hippuroides	HALORAGACEAE	WESTERN MILFOIL	native	
Myriophyllum sibiricum	HALORAGACEAE	WATER-MILFOIL	native	
Myriophyllum spicatum	HALORAGACEAE	EURASIAN MILFOIL	naturalized	
Myriophyllum verticillatum	HALORAGACEAE	WATER-MILFOIL	native	
Najas flexilis	HYDROCHARITACEAE	SLENDER WATER-NYMPH	native	
Najas gracillima	HYDROCHARITACEAE	THREAD-LEAVED WATER-NYMPH	naturalized	
Najas graminea	HYDROCHARITACEAE	RICE-FIELD WATER-NYMPH	naturalized	
Najas guadalupensis	HYDROCHARITACEAE	COMMON WATER-NYMPH	native	
Najas guadalupensis subsp. guadalupensis	HYDROCHARITACEAE		native	
Najas marina	HYDROCHARITACEAE	HOLLY-LEAVED WATER-NYMPH	native	
Nama aretioides	BORAGINACEAE	PURPLE MAT	native	
Nama aretioides var. californicum	BORAGINACEAE	PURPLE MAT	native	
Nama aretioides var. multiflorum	BORAGINACEAE	PURPLE MAT	native	
Nama californicum	BORAGINACEAE	PURPLE MAT	native	
Nama demissum	BORAGINACEAE	PURPLE MAT	native	
Nama demissum var. covillei	BORAGINACEAE	PURPLE MAT	native	
Nama demissum var. demissum	BORAGINACEAE	PURPLE MAT	native	
Nama densum	BORAGINACEAE	PURPLE MAT	native	
Nama densum var. densum	BORAGINACEAE	PURPLE MAT	native	
Nama densum var. parviflorum	BORAGINACEAE	PURPLE MAT	native	
Nama depressum	BORAGINACEAE	PURPLE MAT	native	
Nama dichotomum	BORAGINACEAE	PURPLE MAT	native	
Nama dichotomum var. dichotomum	BORAGINACEAE	PURPLE MAT	native	
Nama hispidum	BORAGINACEAE	PURPLE MAT	native	
Nama hispidum var. spathulatum	BORAGINACEAE	PURPLE MAT	native	
Nama lobbii	BORAGINACEAE	PURPLE MAT	native	
Nama pusillum	BORAGINACEAE	PURPLE MAT	native	
Nama rothrockii	BORAGINACEAE	PURPLE MAT	native	
Nama stenocarpum	BORAGINACEAE	PURPLE MAT	native	
Narcissus pseudonarcissus	AMARYLLIDACEAE		naturalized	
Narcissus tazetta	AMARYLLIDACEAE		naturalized	
Narthecium californicum	NARTHECIACEAE	BOG ASPHODEL	native	
Nassella cernua	POACEAE	NODDING NEEDLEGRASS	native	
Nassella formicarum	POACEAE		naturalized	
Nassella lepida	POACEAE	FOOTHILL NEEDLEGRASS	native	
Nassella pulchra	POACEAE	PURPLE NEEDLEGRASS	native	
Nasturtium gambelii	BRASSICACEAE		native	
Nasturtium officinale	BRASSICACEAE		native	
Navarretia atractyloides	POLEMONIACEAE		native	
Navarretia breweri	POLEMONIACEAE		native	
Navarretia capillaris	POLEMONIACEAE		native	
Navarretia cotulifolia	POLEMONIACEAE		native	
Navarretia divaricata	POLEMONIACEAE	MOUNTAIN NAVARRETIA	native	
Navarretia divaricata subsp. divaricata	POLEMONIACEAE		native	
Navarretia divaricata subsp. vividior	POLEMONIACEAE		native	
Navarretia eriocephala	POLEMONIACEAE	HOARY NAVARRETIA	native	
Navarretia filicaulis	POLEMONIACEAE		native	
Navarretia fossalis	POLEMONIACEAE		native	
Navarretia hamata	POLEMONIACEAE		native	
Navarretia hamata subsp. hamata	POLEMONIACEAE		native	
Navarretia hamata subsp. leptantha	POLEMONIACEAE		native	
Navarretia hamata subsp. parviloba	POLEMONIACEAE		native	
Navarretia heterandra	POLEMONIACEAE	TEHAMA NAVARRETIA	native	
Navarretia heterodoxa	POLEMONIACEAE		native	
Navarretia intertexta	POLEMONIACEAE		native	
Navarretia intertexta subsp. intertexta	POLEMONIACEAE		native	
Navarretia intertexta subsp. propinqua	POLEMONIACEAE		native	
Navarretia jaredii	POLEMONIACEAE	PASO ROBLES NAVARRETIA	native	
Navarretia jepsonii	POLEMONIACEAE	JEPSON'S NAVARRETIA	native	
Navarretia leptalea	POLEMONIACEAE		native	
Navarretia leptalea subsp. bicolor	POLEMONIACEAE		native	
Navarretia leptalea subsp. leptalea	POLEMONIACEAE		native	
Navarretia leucocephala	POLEMONIACEAE		native	
Navarretia leucocephala subsp. bakeri	POLEMONIACEAE	BAKER NAVARRETIA	native	
Navarretia leucocephala subsp. leucocephala	POLEMONIACEAE		native	
Navarretia leucocephala subsp. minima	POLEMONIACEAE		native	
Navarretia leucocephala subsp. pauciflora	POLEMONIACEAE	FEW-FLOWERED NAVARRETIA	native	
Navarretia leucocephala subsp. plieantha	POLEMONIACEAE	MANY-FLOWERED NAVARRETIA	native	
Navarretia mellita	POLEMONIACEAE		native	
Navarretia myersii	POLEMONIACEAE	PINCUSHION NAVARRETIA	native	
Navarretia myersii subsp. deminuta	POLEMONIACEAE		native	acceptance uncertain
Navarretia myersii subsp. myersii	POLEMONIACEAE		native	acceptance uncertain
Navarretia nigelliformis	POLEMONIACEAE		native	
Navarretia nigelliformis subsp. nigelliformis	POLEMONIACEAE		native	
Navarretia nigelliformis subsp. radians	POLEMONIACEAE		native	
Navarretia ojaiensis			native	acceptance uncertain
Navarretia peninsularis	POLEMONIACEAE		native	
Navarretia prolifera	POLEMONIACEAE		native	
Navarretia prolifera subsp. lutea	POLEMONIACEAE	YELLOW BUR NAVARRETIA	native	
Navarretia prolifera subsp. prolifera	POLEMONIACEAE		native	
Navarretia prostrata	POLEMONIACEAE		native	
Navarretia pubescens	POLEMONIACEAE		native	
Navarretia rosulata	POLEMONIACEAE	MARIN COUNTY NAVARRETIA	native	
Navarretia setiloba	POLEMONIACEAE	PIUTE MOUNTAINS NAVARRETIA	native	
Navarretia sinistra	POLEMONIACEAE		native	
Navarretia sinistra subsp. pinnatisecta	POLEMONIACEAE		native	
Navarretia sinistra subsp. sinistra	POLEMONIACEAE		native	
Navarretia squarrosa	POLEMONIACEAE	SKUNKWEED	native	
Navarretia subuligera	POLEMONIACEAE	AWL-LEAVED NAVARRETIA	native	
Navarretia tagetina	POLEMONIACEAE	MARIGOLD NAVARRETIA	native	
Navarretia viscidula	POLEMONIACEAE		native	
Nemacaulis denudata	POLYGONACEAE	WOOLLY-HEADS	native	
Nemacaulis denudata var. denudata	POLYGONACEAE		native	
Nemacaulis denudata var. gracilis	POLYGONACEAE		native	
Nemacladus calcaratus	CAMPANULACEAE		native	
Nemacladus californicus	CAMPANULACEAE		native	
Nemacladus capillaris	CAMPANULACEAE		native	
Nemacladus glanduliferus	CAMPANULACEAE		native	
Nemacladus gracilis	CAMPANULACEAE	SLENDER NEMACLADUS	native	
Nemacladus interior	CAMPANULACEAE		native	
Nemacladus longiflorus	CAMPANULACEAE		native	
Nemacladus longiflorus var. breviflorus	CAMPANULACEAE		native	
Nemacladus longiflorus var. longiflorus	CAMPANULACEAE		native	
Nemacladus montanus	CAMPANULACEAE		native	
Nemacladus orientalis	CAMPANULACEAE		native	
Nemacladus pinnatifidus	CAMPANULACEAE		native	
Nemacladus ramosissimus	CAMPANULACEAE		native	
Nemacladus rigidus	CAMPANULACEAE		native	
Nemacladus rubescens	CAMPANULACEAE		native	
Nemacladus secundiflorus	CAMPANULACEAE		native	
Nemacladus secundiflorus var. robbinsii	CAMPANULACEAE		native	
Nemacladus secundiflorus var. secundiflorus	CAMPANULACEAE		native	
Nemacladus sigmoideus	CAMPANULACEAE		native	
Nemacladus tenuis	CAMPANULACEAE		native	
Nemacladus tenuis var. aliformis	CAMPANULACEAE		native	
Nemacladus tenuis var. tenuis	CAMPANULACEAE		native	
Nemacladus twisselmannii	CAMPANULACEAE	TWISSELMANN'S NEMACLADUS	native	
Nemophila breviflora	BORAGINACEAE		native	
Nemophila heterophylla	BORAGINACEAE		native	
Nemophila maculata	BORAGINACEAE	FIVESPOT	native	
Nemophila menziesii	BORAGINACEAE	BABY BLUE-EYES	native	
Nemophila menziesii var. atomaria	BORAGINACEAE		native	
Nemophila menziesii var. integrifolia	BORAGINACEAE		native	
Nemophila menziesii var. menziesii	BORAGINACEAE		native	
Nemophila parviflora	BORAGINACEAE		native	
Nemophila parviflora var. austiniae	BORAGINACEAE		native	
Nemophila parviflora var. parviflora	BORAGINACEAE		native	
Nemophila parviflora var. quercifolia	BORAGINACEAE	OAK-LEAVED NEMOPHILA	native	
Nemophila pedunculata	BORAGINACEAE		native	
Nemophila pulchella	BORAGINACEAE		native	
Nemophila pulchella var. fremontii	BORAGINACEAE		native	
Nemophila pulchella var. gracilis	BORAGINACEAE		native	
Nemophila pulchella var. pulchella	BORAGINACEAE		native	
Nemophila spatulata	BORAGINACEAE		native	
Neostapfia colusana	POACEAE	COLUSA GRASS	native	
Nepeta cataria	LAMIACEAE	CATNIP	naturalized	
Nerium oleander	APOCYNACEAE		naturalized	
Neviusia cliftonii	ROSACEAE	SNOW-WREATH	native	
Nicolletia occidentalis	ASTERACEAE		native	
Nicotiana acuminata	SOLANACEAE	TOBACCO	naturalized	
Nicotiana acuminata var. multiflora	SOLANACEAE	TOBACCO	naturalized	
Nicotiana attenuata	SOLANACEAE	TOBACCO	native	
Nicotiana clevelandii	SOLANACEAE	TOBACCO	native	
Nicotiana glauca	SOLANACEAE	TREE TOBACCO	naturalized	
Nicotiana obtusifolia	SOLANACEAE	TOBACCO	native	
Nicotiana quadrivalvis	SOLANACEAE	TOBACCO	native	
Nigella damascena	RANUNCULACEAE		naturalized	
Nitrophila mohavensis	AMARANTHACEAE	AMARGOSA NITROPHILA	native	
Nitrophila occidentalis	AMARANTHACEAE		native	
Noccaea fendleri	BRASSICACEAE		native	
Noccaea fendleri subsp. californica	BRASSICACEAE		native	
Noccaea fendleri subsp. glauca	BRASSICACEAE		native	
Nolina bigelovii	LILIACEAE	BEARGRASS	native	
Nolina interrata	LILIACEAE	DEHESA NOLINA	native	
Nothocalais alpestris	ASTERACEAE	FALSE-AGOSERIS	native	
Nothocalais troximoides	ASTERACEAE	FALSE-AGOSERIS	native	
Nothochelone nemorosa	PLANTAGINACEAE		native	
Notholaena californica	PTERIDACEAE	CALIFORNIA CLOAK FERN	native	
Notholithocarpus densiflorus	FAGACEAE		native	
Notholithocarpus densiflorus var. densiflorus	FAGACEAE		native	
Notholithocarpus densiflorus var. echinoides	FAGACEAE		native	
Nothoscordum gracile	ALLIACEAE	FALSE GARLIC	naturalized	
Nuphar polysepala	NYMPHAEACEAE		native	
Nymphaea mexicana	NYMPHAEACEAE	BANANA WATERLILY; YELLOW WATERLILY	naturalized	acceptance uncertain
Nymphaea odorata	NYMPHAEACEAE	FRAGRANT WATERLILY; WHITE WATERLILY	naturalized	
Nymphaea odorata subsp. odorata	NYMPHAEACEAE		naturalized	
Nymphoides peltata	MENYANTHACEAE	WATER FRINGE	naturalized	
Odontostomum hartwegii	TECOPHILAEACEAE		native	
Oemleria cerasiformis	ROSACEAE	OSO BERRY	native	
Oenanthe pimpinelloides	APIACEAE		naturalized	
Oenanthe sarmentosa	APIACEAE		native	
Oenothera biennis	ONAGRACEAE	COMMON EVENING PRIMROSE	naturalized	
Oenothera caespitosa	ONAGRACEAE	FRAGRANT EVENING PRIMROSE	native	
Oenothera caespitosa subsp. crinita	ONAGRACEAE	CAESPITOSE EVENING PRIMROSE	native	
Oenothera caespitosa subsp. marginata	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera californica	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera californica subsp. avita	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera californica subsp. californica	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera californica subsp. eurekensis	ONAGRACEAE	EUREKA DUNES EVENING PRIMROSE	native	
Oenothera deltoides	ONAGRACEAE	BASKET EVENING PRIMROSE; DEVIL'S LANTERN; LION-IN-A-CAGE	native	
Oenothera deltoides subsp. cognata	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera deltoides subsp. deltoides	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera deltoides subsp. howellii	ONAGRACEAE	ANTIOCH DUNES EVENING PRIMROSE	native	
Oenothera deltoides subsp. piperi	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera elata	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera elata subsp. hirsutissima	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera elata subsp. hookeri	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera flava	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera flava subsp. flava	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera glazioviana	ONAGRACEAE	EVENING PRIMROSE	naturalized	
Oenothera laciniata	ONAGRACEAE	EVENING PRIMROSE	naturalized	
Oenothera longissima	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera primiveris	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera pubescens	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera rosea	ONAGRACEAE	EVENING PRIMROSE	naturalized	
Oenothera speciosa	ONAGRACEAE	EVENING PRIMROSE	naturalized	
Oenothera stricta	ONAGRACEAE	EVENING PRIMROSE	naturalized	
Oenothera stricta subsp. stricta	ONAGRACEAE	EVENING PRIMROSE	naturalized	
Oenothera villosa	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera villosa subsp. strigosa	ONAGRACEAE	EVENING PRIMROSE	native	
Oenothera wolfii	ONAGRACEAE	WOLF'S EVENING PRIMROSE	native	
Oenothera xylocarpa	ONAGRACEAE	EVENING PRIMROSE	native	
Olea africana	OLEACEAE		naturalized	
Olea europaea	OLEACEAE	OLIVE	naturalized	
Oligomeris linifolia	RESEDACEAE		native	
Olneya tesota	FABACEAE	IRONWOOD	native	
Olsynium douglasii	IRIDACEAE		native	
Olsynium douglasii var. douglasii	IRIDACEAE		native	
Oncosiphon piluliferum	ASTERACEAE		naturalized	
Onobrychis viciifolia	FABACEAE	SANFOIN	naturalized	
Onopordum acanthium	ASTERACEAE		naturalized	
Onopordum acanthium subsp. acanthium	ASTERACEAE	SCOTCH THISTLE	naturalized	
Onopordum illyricum	ASTERACEAE	ILLYRIAN THISTLE	naturalized	
Onopordum tauricum	ASTERACEAE	TAURIAN THISTLE	naturalized	
Ophioglossum californicum	OPHIOGLOSSACEAE	CALIFORNIA ADDER'S-TONGUE	native	
Ophioglossum pusillum	OPHIOGLOSSACEAE	NORTHERN ADDER'S-TONGUE	native	
Opuntia basilaris	CACTACEAE	BEAVERTAIL CACTUS	native	
Opuntia basilaris var. basilaris	CACTACEAE	BEAVERTAIL	native	
Opuntia basilaris var. brachyclada	CACTACEAE	SHORT-JOINT BEAVERTAIL	native	
Opuntia basilaris var. treleasei	CACTACEAE	BAKERSFIELD CACTUS	native	
Opuntia chlorotica	CACTACEAE	PANCAKE PRICKLY-PEAR	native	
Opuntia engelmannii	CACTACEAE	CHOLLA; PRICKLY-PEAR	native	
Opuntia engelmannii var. engelmannii	CACTACEAE	ENGELMANN PRICKLY-PEAR	native	
Opuntia ficus-indica	CACTACEAE	INDIAN-FIG	naturalized	
Opuntia fragilis	CACTACEAE	BRITTLE OR LITTLE PRICKLY-PEAR	native	
Opuntia littoralis	CACTACEAE	CHOLLA; PRICKLY-PEAR	native	
Opuntia microdasys	CACTACEAE		naturalized	acceptance uncertain
Opuntia oricola	CACTACEAE	CHOLLA; PRICKLY-PEAR	native	
Opuntia phaeacantha	CACTACEAE	CHOLLA; PRICKLY-PEAR	native	
Opuntia polyacantha	CACTACEAE		native	
Opuntia polyacantha var. erinacea	CACTACEAE		native	
Opuntia polyacantha var. hystricina	CACTACEAE		native	
Orcuttia californica	POACEAE	CALIFORNIA ORCUTT GRASS	native	
Orcuttia inaequalis	POACEAE	SAN JOAQUIN VALLEY ORCUTT GRASS	native	
Orcuttia pilosa	POACEAE	HAIRY ORCUTT GRASS	native	
Orcuttia tenuis	POACEAE	SLENDER ORCUTT GRASS	native	
Orcuttia viscida	POACEAE	SACRAMENTO ORCUTT GRASS	native	
Oreonana clementis	APIACEAE		native	
Oreonana purpurascens	APIACEAE	PURPLE MOUNTAIN-PARSLEY	native	
Oreonana vestita	APIACEAE	WOOLLY MOUNTAIN-PARSLEY	native	
Oreostemma alpigenum	ASTERACEAE		native	
Oreostemma alpigenum var. andersonii	ASTERACEAE		native	
Oreostemma elatum	ASTERACEAE		native	
Oreostemma peirsonii	ASTERACEAE		native	
Origanum vulgare	LAMIACEAE	OREGANO	naturalized	
Ornithostaphylos oppositifolia	ERICACEAE	BAJA CALIFORNIA BIRDBUSH	native	
Orobanche bulbosa	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche californica	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche californica subsp. californica	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche californica subsp. feudgei	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche californica subsp. grandis	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche californica subsp. grayana	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche californica subsp. jepsonii	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche cooperi	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche corymbosa	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche fasciculata	OROBANCHACEAE	CLUSTERED BROOM-RAPE	native	
Orobanche parishii	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche parishii subsp. brachyloba	OROBANCHACEAE	SHORT-LOBED BROOM-RAPE	native	
Orobanche parishii subsp. parishii	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche pinorum	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche ramosa	OROBANCHACEAE	BROOM-RAPE	naturalized	
Orobanche uniflora	OROBANCHACEAE	NAKED BROOM-RAPE	native	
Orobanche valida	OROBANCHACEAE	BROOM-RAPE	native	
Orobanche valida subsp. howellii	OROBANCHACEAE	HOWELL'S BROOM-RAPE	native	
Orobanche valida subsp. valida	OROBANCHACEAE	ROCK CREEK BROOM-RAPE	native	
Orobanche vallicola	OROBANCHACEAE	BROOM-RAPE	native	
Orochaenactis thysanocarpha	ASTERACEAE		native	
Orogenia fusiformis	APIACEAE		native	
Orthilia secunda	ERICACEAE	ONE-SIDED WINTERGREEN	native	
Orthocarpus bracteosus	SCROPHULARIACEAE		native	
Orthocarpus cuspidatus	SCROPHULARIACEAE		native	
Orthocarpus cuspidatus subsp. copelandii	SCROPHULARIACEAE		native	
Orthocarpus cuspidatus subsp. cryptanthus	SCROPHULARIACEAE		native	
Orthocarpus cuspidatus subsp. cuspidatus	SCROPHULARIACEAE	SISKIYOU MOUNTAINS ORTHOCARPUS	native	
Orthocarpus imbricatus	SCROPHULARIACEAE		native	
Orthocarpus luteus	SCROPHULARIACEAE		native	
Orthocarpus pachystachyus	SCROPHULARIACEAE	SHASTA ORTHOCARPUS	native	
Oryctes nevadensis	SOLANACEAE	NEVADA ORYCTES	native	
Oryza sativa	POACEAE	RICE	naturalized	
Osmadenia tenella	ASTERACEAE	OSMADENIA	native	
Osmorhiza berteroi	APIACEAE		native	
Osmorhiza brachypoda	APIACEAE		native	
Osmorhiza depauperata	APIACEAE		native	
Osmorhiza occidentalis	APIACEAE		native	
Osmorhiza purpurea	APIACEAE		native	
Osteospermum ecklonis	ASTERACEAE	AFRICAN DAISY	naturalized	
Osteospermum fruticosum	ASTERACEAE		naturalized	
Oxalis articulata subsp. rubra	OXALIDACEAE		naturalized	
Oxalis californica	OXALIDACEAE		native	
Oxalis corniculata	OXALIDACEAE		native	
Oxalis corniculata subsp. corniculata	OXALIDACEAE		naturalized	
Oxalis corniculata subsp. pilosa	OXALIDACEAE		native	
Oxalis incarnata	OXALIDACEAE		naturalized	
Oxalis micrantha	OXALIDACEAE		naturalized	
Oxalis oregana	OXALIDACEAE	REDWOOD SORREL	native	
Oxalis pes-caprae	OXALIDACEAE	BERMUDA BUTTERCUP	naturalized	
Oxalis suksdorfii	OXALIDACEAE		native	
Oxalis trilliifolia	OXALIDACEAE		native	
Oxypolis occidentalis	APIACEAE		native	
Oxyria digyna	POLYGONACEAE	MOUNTAIN SORREL	native	
Oxystylis lutea	BRASSICACEAE		native	
Oxytenia acerosa	ASTERACEAE		native	acceptance uncertain
Oxytheca dendroidea	POLYGONACEAE		native	
Oxytheca dendroidea subsp. dendroidea	POLYGONACEAE		native	
Oxytheca perfoliata	POLYGONACEAE		native	
Oxytheca watsonii	POLYGONACEAE	WATSON'S OXYTHECA	native	
Oxytropis borealis	FABACEAE		native	
Oxytropis borealis var. australis	FABACEAE		native	
Oxytropis borealis var. viscida	FABACEAE		native	
Oxytropis deflexa	FABACEAE		native	
Oxytropis deflexa var. sericea	FABACEAE	BLUE PENDENT-POD OXYTROPE	native	
Oxytropis oreophila	FABACEAE		native	
Oxytropis oreophila var. oreophila	FABACEAE		native	
Oxytropis parryi	FABACEAE		native	
Packera bernardina	ASTERACEAE		native	
Packera bolanderi	ASTERACEAE		native	
Packera bolanderi var. bolanderi	ASTERACEAE		native	
Packera breweri	ASTERACEAE		native	
Packera cana	ASTERACEAE		native	
Packera clevelandii	ASTERACEAE		native	
Packera eurycephala	ASTERACEAE		native	
Packera eurycephala var. eurycephala	ASTERACEAE		native	
Packera eurycephala var. lewisrosei	ASTERACEAE		native	
Packera ganderi	ASTERACEAE		native	
Packera greenei	ASTERACEAE		native	
Packera hesperia	ASTERACEAE		native	
Packera indecora	ASTERACEAE		native	
Packera ionophylla	ASTERACEAE		native	
Packera layneae	ASTERACEAE		native	
Packera macounii	ASTERACEAE		native	
Packera multilobata	ASTERACEAE		native	
Packera pauciflora	ASTERACEAE		native	
Packera pseudaurea	ASTERACEAE		native	
Packera pseudaurea var. pseudaurea	ASTERACEAE		native	
Packera streptanthifolia	ASTERACEAE		native	
Packera subnuda	ASTERACEAE		native	
Packera werneriifolia	ASTERACEAE		native	
Paeonia brownii	PAEONIACEAE	PEONY	native	
Paeonia californica	PAEONIACEAE	PEONY	native	
Palafoxia arida	ASTERACEAE		native	
Palafoxia arida var. arida	ASTERACEAE		native	
Palafoxia arida var. gigantea	ASTERACEAE	GIANT SPANISH-NEEDLE	native	
Pancratium maritimum	AMARYLLIDACEAE		naturalized	
Panicum acuminatum	POACEAE	MILLET; PANICGRASS	native	
Panicum acuminatum var. acuminatum	POACEAE	MILLET; PANICGRASS	native	
Panicum acuminatum var. lindheimeri	POACEAE	MILLET; PANICGRASS	native	
Panicum alatum	POACEAE		native	acceptance uncertain
Panicum alatum var. alatum	POACEAE		native	acceptance uncertain
Panicum alatum var. longiflorum	POACEAE		native	acceptance uncertain
Panicum antidotale	POACEAE	BLUE PANICGRASS	naturalized	
Panicum capillare	POACEAE	WITCHGRASS	native	
Panicum capillare subsp. capillare	POACEAE		native	acceptance uncertain
Panicum capillare subsp. hillmanii	POACEAE		naturalized	acceptance uncertain
Panicum dichotomiflorum	POACEAE	MILLET; PANICGRASS	naturalized	
Panicum dichotomum	POACEAE		native	acceptance uncertain
Panicum hillmanii	POACEAE	MILLET; PANICGRASS	naturalized	acceptance uncertain
Panicum hirticaule	POACEAE	MILLET; PANICGRASS	native	
Panicum hirticaule var. hirticaule	POACEAE		native	acceptance uncertain
Panicum miliaceum	POACEAE	BROOM CORN MILLET	naturalized	
Panicum miliaceum subsp. ruderale	POACEAE		naturalized	acceptance uncertain
Panicum oligosanthes	POACEAE	MILLET; PANICGRASS	native	
Panicum oligosanthes var. scribnerianum	POACEAE	MILLET; PANICGRASS	native	
Panicum rigidulum	POACEAE		naturalized	acceptance uncertain
Panicum rigidulum var. rigidulum	POACEAE		naturalized	acceptance uncertain
Panicum urvilleanum	POACEAE	MILLET; PANICGRASS	native	
Papaver argemone	PAPAVERACEAE		naturalized	
Papaver californicum	PAPAVERACEAE	FIRE POPPY	native	
Papaver heterophyllum	PAPAVERACEAE		native	
Papaver hybridum	PAPAVERACEAE		naturalized	
Papaver rhoeas	PAPAVERACEAE	CORN POPPY	naturalized	
Papaver somniferum	PAPAVERACEAE	OPIUM POPPY	naturalized	
Parapholis incurva	POACEAE	SICKLE GRASS	naturalized	
Parapholis strigosa	POACEAE		naturalized	
Parentucellia latifolia	SCROPHULARIACEAE		naturalized	
Parentucellia viscosa	SCROPHULARIACEAE		naturalized	
Parietaria hespera	URTICACEAE	PELLITORY	native	
Parietaria hespera var. californica	URTICACEAE	PELLITORY	native	
Parietaria hespera var. hespera	URTICACEAE	PELLITORY	native	
Parietaria judaica	URTICACEAE	PELLITORY	naturalized	
Parietaria pensylvanica	URTICACEAE	PELLITORY	native	
Parkinsonia aculeata	FABACEAE	MEXICAN PALO VERDE	naturalized	
Parkinsonia florida	FABACEAE		native	
Parkinsonia microphylla	FABACEAE		native	
Parnassia cirrata	PARNASSIACEAE	GRASS-OF-PARNASSUS	native	
Parnassia cirrata var. cirrata	PARNASSIACEAE		native	
Parnassia cirrata var. intermedia	PARNASSIACEAE		native	
Parnassia fimbriata	PARNASSIACEAE	GRASS-OF-PARNASSUS	native	
Parnassia palustris	PARNASSIACEAE		native	
Parnassia parviflora	PARNASSIACEAE	GRASS-OF-PARNASSUS	native	
Paronychia ahartii	CARYOPHYLLACEAE	AHART'S PARONYCHIA	native	
Paronychia echinulata	CARYOPHYLLACEAE	NAILWORT; WHITLOW-WORT	naturalized	
Paronychia echinulata var. echinulata	CARYOPHYLLACEAE	NAILWORT; WHITLOW-WORT	naturalized	
Paronychia franciscana	CARYOPHYLLACEAE	NAILWORT; WHITLOW-WORT	naturalized	
Parthenocissus vitacea	VITACEAE	WOODBINE	naturalized	
Pascopyrum smithii	POACEAE		native	
Paspalum dilatatum	POACEAE	DALLIS GRASS	naturalized	
Paspalum distichum	POACEAE		native	
Paspalum notatum	POACEAE		naturalized	
Paspalum urvillei	POACEAE		naturalized	
Paspalum vaginatum	POACEAE		naturalized	acceptance uncertain
Passiflora tarminiana	PASSIFLORACEAE		naturalized	acceptance uncertain
Pastinaca sativa	APIACEAE	PARSNIP	naturalized	
Paxistima myrsinites	CELASTRACEAE	OREGON BOXWOOD	native	
Pectis papposa	ASTERACEAE		native	
Pectis papposa var. papposa	ASTERACEAE	CHINCH-WEED	native	
Pectocarya heterocarpa	BORAGINACEAE		native	
Pectocarya linearis	BORAGINACEAE		native	
Pectocarya linearis subsp. ferocula	BORAGINACEAE		native	
Pectocarya penicillata	BORAGINACEAE		native	
Pectocarya peninsularis	BORAGINACEAE		native	
Pectocarya platycarpa	BORAGINACEAE		native	
Pectocarya pusilla	BORAGINACEAE		native	
Pectocarya recurvata	BORAGINACEAE		native	
Pectocarya setosa	BORAGINACEAE		native	
Pedicularis attollens	SCROPHULARIACEAE	LITTLE ELEPHANT'S HEAD	native	
Pedicularis bracteosa	SCROPHULARIACEAE	LOUSEWORT	native	
Pedicularis bracteosa var. flavida	SCROPHULARIACEAE	LOUSEWORT	native	
Pedicularis centranthera	SCROPHULARIACEAE	DWARF LOUSEWORT	native	
Pedicularis contorta	SCROPHULARIACEAE	CURVED-BEAK LOUSEWORT	native	
Pedicularis crenulata	SCROPHULARIACEAE	SCALLOP-LEAVED LOUSEWORT	native	
Pedicularis densiflora	SCROPHULARIACEAE	INDIAN WARRIOR	native	
Pedicularis dudleyi	SCROPHULARIACEAE	DUDLEY'S LOUSEWORT	native	
Pedicularis groenlandica	SCROPHULARIACEAE	ELEPHANT'S HEAD	native	
Pedicularis howellii	SCROPHULARIACEAE	HOWELL'S LOUSEWORT	native	
Pedicularis racemosa	SCROPHULARIACEAE	LEAFY LOUSEWORT	native	
Pedicularis semibarbata	SCROPHULARIACEAE	LOUSEWORT	native	
Pediomelum californicum	FABACEAE	INDIAN BREADROOT	native	
Pediomelum castoreum	FABACEAE	INDIAN BREADROOT	native	
Peganum harmala	NITRARIACEAE		naturalized	
Pelargonium grossularioides	GERANIACEAE	GARDEN GERANIUM	naturalized	
Pelargonium inquinans	GERANIACEAE	GARDEN GERANIUM	naturalized	
Pelargonium panduriforme	GERANIACEAE	OAK-LEAFED GERANIUM	naturalized	
Pelargonium × hortorum	GERANIACEAE	GARDEN GERANIUM	naturalized	
Pellaea andromedifolia	PTERIDACEAE	COFFEE FERN	native	
Pellaea brachyptera	PTERIDACEAE	CLIFF-BRAKE	native	
Pellaea breweri	PTERIDACEAE	CLIFF-BRAKE	native	
Pellaea bridgesii	PTERIDACEAE	CLIFF-BRAKE	native	
Pellaea mucronata	PTERIDACEAE	BIRD'S-FOOT FERN	native	
Pellaea mucronata var. californica	PTERIDACEAE	CLIFF-BRAKE	native	
Pellaea mucronata var. mucronata	PTERIDACEAE	CLIFF-BRAKE	native	
Pellaea truncata	PTERIDACEAE	CLIFF-BRAKE	native	
Pennisetum clandestinum	POACEAE	KIKUYU GRASS	naturalized	
Pennisetum latifolium	POACEAE		naturalized	acceptance uncertain
Pennisetum macrourum	POACEAE		naturalized	acceptance uncertain
Pennisetum setaceum	POACEAE		naturalized	
Pennisetum villosum	POACEAE		naturalized	
Penstemon albomarginatus	PLANTAGINACEAE	WHITE-MARGINED BEARDTONGUE	native	
Penstemon anguineus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon azureus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon azureus var. angustissimus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon azureus var. azureus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon barnebyi	PLANTAGINACEAE	BARNEBY'S BEARDTONGUE	native	
Penstemon bicolor	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon caesius	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon calcareus	PLANTAGINACEAE	LIMESTONE BEARDTONGUE	native	
Penstemon californicus	PLANTAGINACEAE	CALIFORNIA PENSTEMON	native	
Penstemon centranthifolius	PLANTAGINACEAE	SCARLET BUGLER	native	
Penstemon cinicola	PLANTAGINACEAE	ASH BEARDTONGUE	native	
Penstemon clevelandii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon clevelandii var. clevelandii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon clevelandii var. connatus	PLANTAGINACEAE	SAN JACINTO BEARDTONGUE	native	
Penstemon clevelandii var. mohavensis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon davidsonii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon davidsonii var. davidsonii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon deustus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon deustus var. pedicellatus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon deustus var. suffrutescens	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon eatonii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon eatonii var. eatonii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon eatonii var. undosus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon filiformis	PLANTAGINACEAE	THREAD-LEAVED BEARDTONGUE	native	
Penstemon floridus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon floridus var. austinii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon floridus var. floridus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon fruticiformis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon fruticiformis var. amargosae	PLANTAGINACEAE	DEATH VALLEY BEARDTONGUE	native	
Penstemon fruticiformis var. fruticiformis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon gracilentus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon grinnellii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon grinnellii var. grinnellii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon grinnellii var. scrophularioides	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon heterodoxus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon heterodoxus var. cephalophorus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon heterodoxus var. heterodoxus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon heterodoxus var. shastensis	PLANTAGINACEAE	SHASTA BEARDTONGUE	native	
Penstemon heterophyllus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon heterophyllus var. australis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon heterophyllus var. heterophyllus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon heterophyllus var. purdyi	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon humilis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon humilis var. humilis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon incertus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon janishiae	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon labrosus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon laetus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon laetus var. laetus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon laetus var. leptosepalus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon laetus var. sagittatus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon monoensis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon neotericus	PLANTAGINACEAE	PLUMAS COUNTY BEARDTONGUE	native	
Penstemon newberryi	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon newberryi var. berryi	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon newberryi var. newberryi	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon newberryi var. sonomensis	PLANTAGINACEAE	SONOMA BEARDTONGUE	native	
Penstemon pahutensis	PLANTAGINACEAE	PAHUTE BEARDTONGUE	native	
Penstemon palmeri	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon palmeri var. palmeri	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon papillatus	PLANTAGINACEAE	INYO BEARDTONGUE	native	
Penstemon parvulus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon patens	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon personatus	PLANTAGINACEAE	CLOSE-THROATED BEARDTONGUE	native	
Penstemon procerus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon procerus var. brachyanthus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon procerus var. formosus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon pseudospectabilis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon purpusii	PLANTAGINACEAE	SNOW MOUNTAIN BEARDTONGUE	native	
Penstemon rattanii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon rattanii var. kleei	PLANTAGINACEAE	SANTA CRUZ MOUNTAINS BEARDTONGUE	native	
Penstemon rattanii var. rattanii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon roezlii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon rostriflorus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon rupicola	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon rydbergii	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon rydbergii var. oreocharis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon scapoides	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon speciosus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon spectabilis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon spectabilis var. spectabilis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon spectabilis var. subviscosus	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon stephensii	PLANTAGINACEAE	STEPHENS' BEARDTONGUE	native	
Penstemon strictus	PLANTAGINACEAE		naturalized	
Penstemon sudans	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon thompsoniae	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon thurberi	PLANTAGINACEAE	THURBER'S BEARDTONGUE	native	
Penstemon tracyi	PLANTAGINACEAE	TRACY'S BEARDTONGUE	native	
Penstemon utahensis	PLANTAGINACEAE	BEARDTONGUE	native	
Penstemon venustus	PLANTAGINACEAE	BEARDTONGUE	naturalized	
Pentachaeta alsinoides	ASTERACEAE		native	
Pentachaeta aurea	ASTERACEAE	GOLDEN-RAYED PENTACHAETA	native	
Pentachaeta bellidiflora	ASTERACEAE	WHITE-RAYED PENTACHAETA	native	
Pentachaeta exilis	ASTERACEAE		native	
Pentachaeta exilis subsp. aeolica	ASTERACEAE	SLENDER PENTACHAETA	native	
Pentachaeta exilis subsp. exilis	ASTERACEAE		native	
Pentachaeta fragilis	ASTERACEAE		native	
Pentachaeta lyonii	ASTERACEAE	LYON'S PENTACHAETA	native	
Pentagramma pallida	PTERIDACEAE	GOLDBACK FERN; SILVERBACK FERN	native	
Pentagramma triangularis	PTERIDACEAE	GOLDBACK FERN; SILVERBACK FERN	native	
Pentagramma triangularis subsp. maxonii	PTERIDACEAE	GOLDBACK FERN; SILVERBACK FERN	native	
Pentagramma triangularis subsp. triangularis	PTERIDACEAE	GOLDBACK FERN; SILVERBACK FERN	native	
Pentagramma triangularis subsp. viscosa	PTERIDACEAE	GOLDBACK FERN; SILVERBACK FERN	native	
Peraphyllum ramosissimum	ROSACEAE	WILD CRAB APPLE	native	
Pericallis hybrida	ASTERACEAE		naturalized	
Pericome caudata	ASTERACEAE		native	
Perideridia bacigalupii	APIACEAE	BACIGALUPI'S PERIDERIDIA	native	
Perideridia bolanderi	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia bolanderi subsp. bolanderi	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia bolanderi subsp. involucrata	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia californica	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia gairdneri	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia gairdneri subsp. borealis	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia gairdneri subsp. gairdneri	APIACEAE	GAIRDNER'S YAMPAH	native	
Perideridia howellii	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia kelloggii	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia lemmonii	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia leptocarpa	APIACEAE	NARROW-SEEDED YAMPAH	native	
Perideridia oregana	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia parishii	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia parishii subsp. latifolia	APIACEAE	SQUAWROOT; YAMPAH	native	
Perideridia parishii subsp. parishii	APIACEAE	PARISH'S YAMPAH	native	
Perideridia pringlei	APIACEAE	PRINGLE'S YAMPAH	native	
Perityle emoryi	ASTERACEAE		native	
Perityle inyoensis	ASTERACEAE	INYO LAPHAMIA	native	
Perityle megalocephala	ASTERACEAE		native	
Perityle megalocephala var. megalocephala	ASTERACEAE		native	
Perityle megalocephala var. oligophylla	ASTERACEAE		native	
Perityle villosa	ASTERACEAE	HANAUPAH LAPHAMIA	native	
Persicaria amphibia	POLYGONACEAE		native	
Persicaria capitata	POLYGONACEAE		naturalized	
Persicaria hydropiper	POLYGONACEAE		naturalized	
Persicaria hydropiperoides	POLYGONACEAE		native	
Persicaria lapathifolia	POLYGONACEAE		native	
Persicaria maculosa	POLYGONACEAE		naturalized	
Persicaria pensylvanica	POLYGONACEAE		naturalized	
Persicaria punctata	POLYGONACEAE		native	
Persicaria wallichii	POLYGONACEAE		naturalized	
Petalonyx linearis	LOASACEAE		native	
Petalonyx nitidus	LOASACEAE		native	
Petalonyx thurberi	LOASACEAE		native	
Petalonyx thurberi subsp. gilmanii	LOASACEAE	DEATH VALLEY SANDPAPER PLANT	native	
Petalonyx thurberi subsp. thurberi	LOASACEAE		native	
Petasites frigidus	ASTERACEAE		native	
Petasites frigidus var. palmatus	ASTERACEAE	COLTSFOOT	native	
Peteria thompsoniae	FABACEAE	SPINE-NODED MILKVETCH	native	
Petradoria pumila	ASTERACEAE	ROCK GOLDENROD	native	
Petradoria pumila subsp. pumila	ASTERACEAE	ROCK GOLDENROD	native	
Petrophytum caespitosum	ROSACEAE		native	
Petrophytum caespitosum subsp. acuminatum	ROSACEAE		native	
Petrophytum caespitosum subsp. caespitosum	ROSACEAE		native	
Petrorhagia dubia	CARYOPHYLLACEAE		naturalized	
Petrorhagia nanteuilii	CARYOPHYLLACEAE		naturalized	
Petrorhagia prolifera	CARYOPHYLLACEAE		naturalized	
Petroselinum crispum	APIACEAE	PARSLEY	naturalized	
Petunia parviflora	SOLANACEAE		native	
Petunia violacea	SOLANACEAE		naturalized	acceptance uncertain
Peucephyllum schottii	ASTERACEAE	PYGMY-CEDAR	native	
Phacelia adenophora	BORAGINACEAE		native	
Phacelia affinis	BORAGINACEAE		native	
Phacelia anelsonii	BORAGINACEAE	AVEN NELSON'S PHACELIA	native	
Phacelia argentea	BORAGINACEAE	SAND DUNE PHACELIA	native	
Phacelia austromontana	BORAGINACEAE		native	
Phacelia barnebyana	BORAGINACEAE		native	
Phacelia bicolor	BORAGINACEAE		native	
Phacelia bicolor var. bicolor	BORAGINACEAE		native	
Phacelia bolanderi	BORAGINACEAE		native	
Phacelia brachyloba	BORAGINACEAE		native	
Phacelia breweri	BORAGINACEAE		native	
Phacelia californica	BORAGINACEAE		native	
Phacelia calthifolia	BORAGINACEAE		native	
Phacelia campanularia	BORAGINACEAE		native	
Phacelia campanularia subsp. campanularia	BORAGINACEAE		native	
Phacelia campanularia subsp. vasiformis	BORAGINACEAE		native	
Phacelia cicutaria	BORAGINACEAE		native	
Phacelia cicutaria var. cicutaria	BORAGINACEAE		native	
Phacelia cicutaria var. hispida	BORAGINACEAE		native	
Phacelia cicutaria var. hubbyi	BORAGINACEAE		native	
Phacelia ciliata	BORAGINACEAE		native	
Phacelia coerulea	BORAGINACEAE		native	
Phacelia congdonii	BORAGINACEAE		native	
Phacelia cookei	BORAGINACEAE	COOKE'S PHACELIA	native	
Phacelia corymbosa	BORAGINACEAE		native	
Phacelia crenulata	BORAGINACEAE		native	
Phacelia crenulata var. ambigua	BORAGINACEAE		native	
Phacelia crenulata var. crenulata	BORAGINACEAE		native	
Phacelia crenulata var. minutiflora	BORAGINACEAE		native	
Phacelia cryptantha	BORAGINACEAE		native	
Phacelia curvipes	BORAGINACEAE		native	
Phacelia dalesiana	BORAGINACEAE	SCOTT MOUNTAIN PHACELIA	native	
Phacelia davidsonii	BORAGINACEAE		native	
Phacelia distans	BORAGINACEAE		native	
Phacelia divaricata	BORAGINACEAE		native	
Phacelia douglasii	BORAGINACEAE		native	
Phacelia egena	BORAGINACEAE		native	
Phacelia eisenii	BORAGINACEAE		native	
Phacelia exilis	BORAGINACEAE	TRANSVERSE RANGE PHACELIA	native	
Phacelia floribunda	BORAGINACEAE	SAN CLEMENTE ISLAND PHACELIA	native	
Phacelia fremontii	BORAGINACEAE		native	
Phacelia glandulifera	BORAGINACEAE		native	
Phacelia grandiflora	BORAGINACEAE		native	
Phacelia greenei	BORAGINACEAE	SCOTT VALLEY PHACELIA	native	
Phacelia grisea	BORAGINACEAE		native	
Phacelia gymnoclada	BORAGINACEAE		native	
Phacelia hastata	BORAGINACEAE		native	
Phacelia hastata subsp. compacta	BORAGINACEAE		native	
Phacelia hastata subsp. hastata	BORAGINACEAE		native	
Phacelia heterophylla	BORAGINACEAE		native	
Phacelia heterophylla subsp. virgata	BORAGINACEAE		native	
Phacelia humilis	BORAGINACEAE		native	
Phacelia humilis var. dudleyi	BORAGINACEAE		native	
Phacelia humilis var. humilis	BORAGINACEAE		native	
Phacelia hydrophylloides	BORAGINACEAE		native	
Phacelia imbricata	BORAGINACEAE		native	
Phacelia imbricata subsp. imbricata	BORAGINACEAE		native	
Phacelia imbricata subsp. patula	BORAGINACEAE		native	
Phacelia insularis	BORAGINACEAE		native	
Phacelia insularis var. continentis	BORAGINACEAE	NORTHCOAST PHACELIA	native	
Phacelia insularis var. insularis	BORAGINACEAE	NORTH CHANNEL ISLANDS PHACELIA	native	
Phacelia inundata	BORAGINACEAE	PLAYA PHACELIA	native	
Phacelia inyoensis	BORAGINACEAE	INYO PHACELIA	native	
Phacelia ivesiana	BORAGINACEAE		native	
Phacelia lemmonii	BORAGINACEAE		native	
Phacelia leonis	BORAGINACEAE	SISKIYOU PHACELIA	native	
Phacelia linearis	BORAGINACEAE		native	
Phacelia longipes	BORAGINACEAE		native	
Phacelia lyonii	BORAGINACEAE		native	
Phacelia malvifolia	BORAGINACEAE		native	
Phacelia marcescens	BORAGINACEAE		native	
Phacelia minor	BORAGINACEAE		native	
Phacelia mohavensis	BORAGINACEAE	MOJAVE PHACELIA	native	
Phacelia monoensis	BORAGINACEAE	MONO COUNTY PHACELIA	native	
Phacelia mustelina	BORAGINACEAE	DEATH VALLEY ROUND-LEAVED PHACELIA	native	
Phacelia mutabilis	BORAGINACEAE		native	
Phacelia nashiana	BORAGINACEAE	CHARLOTTE'S PHACELIA	native	
Phacelia neglecta	BORAGINACEAE		native	
Phacelia nemoralis	BORAGINACEAE		native	
Phacelia nemoralis subsp. nemoralis	BORAGINACEAE		native	
Phacelia nemoralis subsp. oregonensis	BORAGINACEAE		native	
Phacelia novenmillensis	BORAGINACEAE	NINE-MILE CANYON PHACELIA	native	
Phacelia orogenes	BORAGINACEAE	MOUNTAIN PHACELIA	native	
Phacelia pachyphylla	BORAGINACEAE		native	
Phacelia parishii	BORAGINACEAE	PARISH'S PHACELIA	native	
Phacelia parryi	BORAGINACEAE		native	
Phacelia pedicellata	BORAGINACEAE		native	
Phacelia peirsoniana	BORAGINACEAE		native	
Phacelia perityloides	BORAGINACEAE		native	
Phacelia perityloides var. jaegeri	BORAGINACEAE		native	
Phacelia perityloides var. perityloides	BORAGINACEAE		native	
Phacelia phacelioides	BORAGINACEAE	MOUNT DIABLO PHACELIA	native	
Phacelia platyloba	BORAGINACEAE		native	
Phacelia pringlei	BORAGINACEAE		native	
Phacelia procera	BORAGINACEAE		native	
Phacelia pulchella	BORAGINACEAE		native	
Phacelia pulchella var. gooddingii	BORAGINACEAE	GOODDING'S PHACELIA	native	
Phacelia purpusii	BORAGINACEAE		native	
Phacelia quickii	BORAGINACEAE		native	
Phacelia racemosa	BORAGINACEAE		native	
Phacelia ramosissima	BORAGINACEAE		native	
Phacelia ramosissima var. austrolitoralis	BORAGINACEAE		native	
Phacelia ramosissima var. eremophila	BORAGINACEAE		native	
Phacelia ramosissima var. latifolia	BORAGINACEAE		native	
Phacelia ramosissima var. montereyensis	BORAGINACEAE		native	
Phacelia ramosissima var. ramosissima	BORAGINACEAE		native	
Phacelia ramosissima var. subglabra	BORAGINACEAE		native	
Phacelia rattanii	BORAGINACEAE		native	
Phacelia rotundifolia	BORAGINACEAE		native	
Phacelia saxicola	BORAGINACEAE		native	
Phacelia sericea	BORAGINACEAE		native	
Phacelia sericea var. ciliosa	BORAGINACEAE	BLUE ALPINE PHACELIA	native	
Phacelia stebbinsii	BORAGINACEAE	STEBBINS' PHACELIA	native	
Phacelia stellaris	BORAGINACEAE	BRAND'S PHACELIA	native	
Phacelia suaveolens	BORAGINACEAE		native	
Phacelia suaveolens var. keckii	BORAGINACEAE	SANTIAGO PEAK PHACELIA	native	
Phacelia suaveolens var. suaveolens	BORAGINACEAE		native	
Phacelia tanacetifolia	BORAGINACEAE		native	
Phacelia tetramera	BORAGINACEAE		native	
Phacelia thermalis	BORAGINACEAE		native	
Phacelia umbrosa	BORAGINACEAE		native	
Phacelia vallicola	BORAGINACEAE	MARIPOSA PHACELIA	native	
Phacelia vallis-mortae	BORAGINACEAE		native	
Phacelia viscida	BORAGINACEAE		native	
Phalacroseris bolanderi	ASTERACEAE		native	
Phalaris angusta	POACEAE		native	
Phalaris aquatica	POACEAE	HARDING GRASS	naturalized	
Phalaris arundinacea	POACEAE	REED CANARY GRASS	native	
Phalaris brachystachys	POACEAE		naturalized	
Phalaris californica	POACEAE		native	
Phalaris canariensis	POACEAE	CANARY GRASS	naturalized	
Phalaris caroliniana	POACEAE		naturalized	
Phalaris lemmonii	POACEAE		native	
Phalaris minor	POACEAE		naturalized	
Phalaris paradoxa	POACEAE		naturalized	
Phaseolus filiformis	FABACEAE	SLENDER-STEMMED BEAN; WRIGHT'S PHASEOLUS	native	
Philadelphus lewisii	PHILADELPHACEAE	WILD MOCK ORANGE	native	
Philadelphus microphyllus	PHILADELPHACEAE	LITTLELEAF MOCK ORANGE	native	
Phleum alpinum	POACEAE	MOUNTAIN TIMOTHY	native	
Phleum pratense	POACEAE	CULTIVATED TIMOTHY	naturalized	
Phlox adsurgens	POLEMONIACEAE		native	
Phlox austromontana	POLEMONIACEAE		native	
Phlox caespitosa	POLEMONIACEAE		native	
Phlox condensata	POLEMONIACEAE		native	
Phlox diffusa	POLEMONIACEAE		native	
Phlox dispersa	POLEMONIACEAE	HIGH SIERRA PHLOX	native	
Phlox dolichantha	POLEMONIACEAE	BEAR VALLEY PHLOX	native	
Phlox hirsuta	POLEMONIACEAE	YREKA PHLOX	native	
Phlox hoodii	POLEMONIACEAE		native	
Phlox hoodii subsp. canescens	POLEMONIACEAE		native	
Phlox muscoides	POLEMONIACEAE	MOSS PHLOX	native	
Phlox pulvinata	POLEMONIACEAE		native	
Phlox speciosa	POLEMONIACEAE		native	
Phlox speciosa subsp. nitida	POLEMONIACEAE		native	
Phlox speciosa subsp. occidentalis	POLEMONIACEAE		native	
Phlox stansburyi	POLEMONIACEAE		native	
Phoenicaulis cheiranthoides	BRASSICACEAE		native	
Phoenix canariensis	ARECACEAE	CANARY ISLAND DATE PALM	naturalized	
Phoenix dactylifera	ARECACEAE	DATE; DATE PALM	naturalized	
Pholisma arenarium	BORAGINACEAE		native	
Pholisma sonorae	BORAGINACEAE	SAND FOOD	native	
Pholistoma auritum	BORAGINACEAE		native	
Pholistoma auritum var. arizonicum	BORAGINACEAE	ARIZONA PHOLISTOMA	native	
Pholistoma auritum var. auritum	BORAGINACEAE	FIESTA FLOWER	native	
Pholistoma membranaceum	BORAGINACEAE		native	
Pholistoma racemosum	BORAGINACEAE		native	
Phoradendron bolleanum	VISCACEAE		native	
Phoradendron californicum	VISCACEAE	DESERT MISTLETOE	native	
Phoradendron juniperinum	VISCACEAE	JUNIPER MISTLETOE	native	
Phoradendron serotinum	VISCACEAE		native	
Phoradendron serotinum subsp. macrophyllum	VISCACEAE		native	
Phoradendron serotinum subsp. tomentosum	VISCACEAE		native	
Phragmites australis	POACEAE	COMMON REED	native	
Phragmites australis subsp. americanus	POACEAE		native	acceptance uncertain
Phragmites australis subsp. berlandieri	POACEAE		native	acceptance uncertain
Phyla caespitosa	VERBENACEAE		naturalized	acceptance uncertain
Phyla lanceolata	VERBENACEAE		native	
Phyla nodiflora	VERBENACEAE		native	
Phyla nodiflora var. incisa	VERBENACEAE		native	
Phyla nodiflora var. nodiflora	VERBENACEAE		native	
Phyllanthus caroliniensis subsp. caroliniensis	EUPHORBIACEAE		naturalized	acceptance uncertain
Phyllodoce breweri	ERICACEAE	MOUNTAIN HEATHER	native	
Phyllodoce empetriformis	ERICACEAE	MOUNTAIN HEATHER	native	
Phyllospadix scouleri	ZOSTERACEAE	SURF-GRASS	native	
Phyllospadix torreyi	ZOSTERACEAE	SURF-GRASS	native	
Phyllostachys aurea	POACEAE		naturalized	acceptance uncertain
Phyllostachys bambusoides	POACEAE		naturalized	acceptance uncertain
Physalis acutifolia	SOLANACEAE	GROUND-CHERRY	native	
Physalis crassifolia	SOLANACEAE	GROUND-CHERRY	native	
Physalis hederifolia	SOLANACEAE	GROUND-CHERRY	native	
Physalis hederifolia var. fendleri	SOLANACEAE	GROUND-CHERRY	native	
Physalis hederifolia var. palmeri	SOLANACEAE	GROUND-CHERRY	native	
Physalis lancifolia	SOLANACEAE	GROUND-CHERRY	naturalized	
Physalis lobata	SOLANACEAE	LOBED GROUND-CHERRY	native	
Physalis philadelphica	SOLANACEAE	TOMATILLO	naturalized	
Physalis pubescens	SOLANACEAE	GROUND-CHERRY	naturalized	
Physalis pubescens var. grisea	SOLANACEAE	GROUND-CHERRY	naturalized	
Physalis pubescens var. integrifolia	SOLANACEAE	GROUND-CHERRY	naturalized	
Physaria chambersii	BRASSICACEAE	DOUBLE BLADDERPOD	native	
Physaria kingii	BRASSICACEAE		native	
Physaria kingii subsp. bernardina	BRASSICACEAE		native	
Physaria kingii subsp. kingii	BRASSICACEAE		native	
Physaria kingii subsp. latifolia	BRASSICACEAE		native	
Physaria occidentalis	BRASSICACEAE		native	
Physaria occidentalis subsp. occidentalis	BRASSICACEAE		native	
Physaria tenella	BRASSICACEAE		native	
Physocarpus alternans	ROSACEAE	NINEBARK	native	
Physocarpus capitatus	ROSACEAE	NINEBARK	native	
Phytolacca americana	PHYTOLACCACEAE	PIGEONBERRY; POKEBERRY; POKEWEED	naturalized	
Phytolacca americana var. americana	PHYTOLACCACEAE		naturalized	
Phytolacca icosandra	PHYTOLACCACEAE		naturalized	
Picea breweriana	PINACEAE	BREWER SPRUCE	native	
Picea engelmannii	PINACEAE	ENGELMANN SPRUCE	native	
Picea sitchensis	PINACEAE	SITKA SPRUCE	native	
Pickeringia montana	FABACEAE		native	
Pickeringia montana var. montana	FABACEAE		native	
Pickeringia montana var. tomentosa	FABACEAE		native	
Pilostyles thurberi	RAFFLESIACEAE	THURBER'S PILOSTYLES	native	
Pilularia americana	MARSILEACEAE		native	
Pinguicula macroceras	LENTIBULARIACEAE		native	
Pinus albicaulis	PINACEAE	WHITEBARK PINE	native	
Pinus attenuata	PINACEAE	KNOBCONE PINE	native	
Pinus balfouriana	PINACEAE	FOXTAIL PINE	native	
Pinus balfouriana subsp. austrina	PINACEAE	PINE	native	
Pinus balfouriana subsp. balfouriana	PINACEAE	PINE	native	
Pinus contorta	PINACEAE	LODGEPOLE PINE	native	
Pinus contorta subsp. bolanderi	PINACEAE	BOLANDER PINE	native	
Pinus contorta subsp. contorta	PINACEAE	SHORE PINE	native	
Pinus contorta subsp. murrayana	PINACEAE	LODGEPOLE PINE	native	
Pinus coulteri	PINACEAE	COULTER PINE	native	
Pinus edulis	PINACEAE	COLORADO PINYON	native	
Pinus flexilis	PINACEAE	LIMBER PINE	native	
Pinus jeffreyi	PINACEAE	JEFFREY PINE	native	
Pinus lambertiana	PINACEAE	SUGAR PINE	native	
Pinus longaeva	PINACEAE	WESTERN BRISTLECONE PINE	native	
Pinus monophylla	PINACEAE	SINGLELEAF PINYON PINE	native	
Pinus monticola	PINACEAE	WESTERN WHITE PINE	native	
Pinus muricata	PINACEAE	BISHOP PINE	native	
Pinus pinea	PINACEAE		naturalized	
Pinus ponderosa	PINACEAE	PACIFIC PONDEROSA PINE	native	
Pinus quadrifolia	PINACEAE	PARRY PINYON PINE	native	
Pinus radiata	PINACEAE	MONTEREY PINE	native	
Pinus sabiniana	PINACEAE	FOOTHILL PINE; GRAY PINE	native	
Pinus torreyana	PINACEAE	TORREY PINE	native	
Pinus torreyana subsp. insularis	PINACEAE		native	
Pinus torreyana subsp. torreyana	PINACEAE		native	
Pinus washoensis	PINACEAE	WASHOE PINE	native	
Piperia candida	ORCHIDACEAE	WHITE FLOWERED PIPERIA	native	
Piperia colemanii	ORCHIDACEAE		native	
Piperia cooperi	ORCHIDACEAE	PIPERIA	native	
Piperia elegans	ORCHIDACEAE	PIPERIA	native	
Piperia elegans subsp. decurtata	ORCHIDACEAE		native	
Piperia elegans subsp. elegans	ORCHIDACEAE		native	
Piperia elongata	ORCHIDACEAE	PIPERIA	native	
Piperia leptopetala	ORCHIDACEAE	PIPERIA	native	
Piperia michaelii	ORCHIDACEAE	MICHAEL'S PIPERIA	native	
Piperia transversa	ORCHIDACEAE	PIPERIA	native	
Piperia unalascensis	ORCHIDACEAE	PIPERIA	native	
Piperia yadonii	ORCHIDACEAE	YADON'S PIPERIA	native	
Piptatherum micranthum	POACEAE	SMALL-FLOWERED RICEGRASS	native	
Piptatherum miliaceum	POACEAE	SMILO GRASS	naturalized	
Piptochaetium ovatum	POACEAE		naturalized	acceptance uncertain
Piptochaetium ovatum var. purpurascens	POACEAE		naturalized	acceptance uncertain
Piptochaetium setosum	POACEAE		naturalized	
Piptochaetium stipoides	POACEAE		naturalized	
Pistacia atlantica	ANACARDIACEAE	PISTACHIO	naturalized	
Pisum sativum	FABACEAE	FIELD PEA; GARDEN PEA; SUGAR PEA	naturalized	
Pittosporum crassifolium	PITTOSPORACEAE		naturalized	
Pittosporum tenuifolium	PITTOSPORACEAE		naturalized	
Pittosporum tobira	PITTOSPORACEAE	JAPANESE PITTOSPORUM; MOCK ORANGE	naturalized	
Pittosporum undulatum	PITTOSPORACEAE	MOCK ORANGE; VICTORIAN BOX	naturalized	
Pityopus californicus	ERICACEAE		native	
Plagiobothrys acanthocarpus	BORAGINACEAE	ADOBE ALLOCARYA	native	
Plagiobothrys arizonicus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys austiniae	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys bracteatus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys canescens	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys chorisianus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys chorisianus var. chorisianus	BORAGINACEAE	CHORIS'S POPCORNFLOWER	native	
Plagiobothrys chorisianus var. hickmanii	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys cognatus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys collinus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys collinus var. californicus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys collinus var. fulvescens	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys collinus var. gracilis	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys collinus var. ursinus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys cusickii	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys distantiflorus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys fulvus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys glyptocarpus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys glyptocarpus var. glyptocarpus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys glyptocarpus var. modestus	BORAGINACEAE	CEDAR CREST POPCORNFLOWER	native	
Plagiobothrys greenei	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys hispidulus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys hispidus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys humistratus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys infectivus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys jonesii	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys kingii	BORAGINACEAE	GREAT BASIN POPCORNFLOWER	native	
Plagiobothrys kingii var. harknessii	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys kingii var. kingii	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys leptocladus	BORAGINACEAE	ALKALI PLAGIOBOTHRYS	native	
Plagiobothrys mollis	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys mollis var. mollis	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys myosotoides	BORAGINACEAE	FORGET-ME-NOT POPCORNFLOWER	native	
Plagiobothrys nothofulvus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys parishii	BORAGINACEAE	PARISH'S POPCORNFLOWER	native	
Plagiobothrys reticulatus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys reticulatus var. reticulatus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys reticulatus var. rossianorum	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys salsus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys scriptus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys shastensis	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys stipitatus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys stipitatus var. micranthus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys stipitatus var. stipitatus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys strictus	BORAGINACEAE	CALISTOGA POPCORNFLOWER	native	
Plagiobothrys tenellus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys tener	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys torreyi	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys torreyi var. diffusus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys torreyi var. torreyi	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys trachycarpus	BORAGINACEAE	POPCORNFLOWER	native	
Plagiobothrys uncinatus	BORAGINACEAE	HOOKED POPCORNFLOWER	native	
Plagiobothrys undulatus	BORAGINACEAE	POPCORNFLOWER	native	
Plantago arenaria	PLANTAGINACEAE		naturalized	
Plantago aristata	PLANTAGINACEAE	PLANTAIN	naturalized	
Plantago coronopus	PLANTAGINACEAE	PLANTAIN	naturalized	
Plantago elongata	PLANTAGINACEAE	PLANTAIN	native	
Plantago erecta	PLANTAGINACEAE	PLANTAIN	native	
Plantago eriopoda	PLANTAGINACEAE	PLANTAIN	native	
Plantago lanceolata	PLANTAGINACEAE	ENGLISH PLANTAIN	naturalized	
Plantago major	PLANTAGINACEAE	COMMON PLANTAIN	naturalized	
Plantago maritima	PLANTAGINACEAE	PLANTAIN	native	
Plantago ovata	PLANTAGINACEAE	PLANTAIN	native	
Plantago ovata var. fastigiata	PLANTAGINACEAE		native	
Plantago ovata var. insularis	PLANTAGINACEAE		native	
Plantago patagonica	PLANTAGINACEAE	PLANTAIN	native	
Plantago pusilla	PLANTAGINACEAE	PLANTAIN	naturalized	
Plantago rhodosperma	PLANTAGINACEAE		native	
Plantago subnuda	PLANTAGINACEAE	PLANTAIN	native	
Plantago truncata	PLANTAGINACEAE	PLANTAIN	naturalized	
Plantago truncata subsp. firma	PLANTAGINACEAE	PLANTAIN	naturalized	
Plantago virginica	PLANTAGINACEAE	PLANTAIN	naturalized	
Platanthera dilatata	ORCHIDACEAE		native	
Platanthera dilatata var. leucostachys	ORCHIDACEAE		native	
Platanthera sparsiflora	ORCHIDACEAE	SPARSE-FLOWERED BOG-ORCHID	native	
Platanthera stricta	ORCHIDACEAE	SLENDER BOG-ORCHID	native	
Platanthera tescamnis	ORCHIDACEAE		native	
Platanthera yosemitensis	ORCHIDACEAE		native	
Platanus racemosa	PLATANACEAE	WESTERN SYCAMORE	native	
Platystemon californicus	PAPAVERACEAE	CREAM CUPS	native	
Plectritis brachystemon	VALERIANACEAE		native	
Plectritis ciliosa	VALERIANACEAE		native	
Plectritis ciliosa subsp. ciliosa	VALERIANACEAE		native	
Plectritis ciliosa subsp. insignis	VALERIANACEAE		native	
Plectritis congesta	VALERIANACEAE	SEA BLUSH	native	
Plectritis macrocera	VALERIANACEAE		native	
Pleiacanthus spinosus	ASTERACEAE		native	
Pleuraphis jamesii	POACEAE	GALLETA	native	
Pleuraphis rigida	POACEAE	BIG GALLETA	native	
Pleuricospora fimbriolata	ERICACEAE		native	
Pleurocoronis pluriseta	ASTERACEAE	ARROW-LEAF	native	
Pleuropogon californicus	POACEAE	SEMAPHORE GRASS	native	
Pleuropogon hooverianus	POACEAE	NORTH COAST SEMAPHORE GRASS	native	
Pleuropogon refractus	POACEAE	NODDING SEMAPHORE GRASS	native	
Pluchea odorata	ASTERACEAE	SALT MARSH FLEABANE	native	
Pluchea sericea	ASTERACEAE	ARROW WEED	native	
Plumbago auriculata	PLUMBAGINACEAE		naturalized	acceptance uncertain
Poa abbreviata subsp. marshii	POACEAE		native	
Poa abbreviata subsp. pattersonii	POACEAE		native	
Poa annua	POACEAE	ANNUAL BLUEGRASS	naturalized	
Poa atropurpurea	POACEAE	SAN BERNARDINO BLUEGRASS	native	
Poa bigelovii	POACEAE	BLUEGRASS	native	
Poa bolanderi	POACEAE	BLUEGRASS	native	
Poa bulbosa	POACEAE	BULBOUS BLUEGRASS	naturalized	
Poa bulbosa var. bulbosa	POACEAE		naturalized	acceptance uncertain
Poa bulbosa var. vivipara	POACEAE		naturalized	
Poa compressa	POACEAE	CANADIAN BLUEGRASS	naturalized	
Poa confinis	POACEAE	BEACH BLUEGRASS	native	
Poa cusickii	POACEAE	BLUEGRASS	native	
Poa cusickii subsp. cusickii	POACEAE	BLUEGRASS	native	
Poa cusickii subsp. epilis	POACEAE	SKYLINE BLUEGRASS	native	
Poa cusickii subsp. pallida	POACEAE	BLUEGRASS	native	
Poa cusickii subsp. purpurascens	POACEAE	BLUEGRASS	native	
Poa diaboli	POACEAE		native	acceptance uncertain
Poa douglasii	POACEAE	SAND-DUNE BLUEGRASS	native	
Poa fendleriana	POACEAE	BLUEGRASS	native	
Poa fendleriana subsp. longiligula	POACEAE	LONGTONGUE MUTTON GRASS	native	
Poa glauca	POACEAE	BLUEGRASS	native	
Poa glauca subsp. rupicola	POACEAE	TIMBERLINE BLUEGRASS	native	
Poa howellii	POACEAE	BLUEGRASS	native	
Poa infirma	POACEAE	WEAK BLUEGRASS	naturalized	
Poa keckii	POACEAE	BLUEGRASS	native	
Poa kelloggii	POACEAE	BLUEGRASS	native	
Poa leptocoma	POACEAE	BLUEGRASS	native	
Poa leptocoma subsp. leptocoma	POACEAE	BOG BLUEGRASS	native	
Poa lettermanii	POACEAE	BLUEGRASS	native	
Poa macrantha	POACEAE	LARGE-FLOWERED SAND-DUNE BLUEGRASS	native	
Poa napensis	POACEAE	NAPA BLUEGRASS	native	
Poa nemoralis	POACEAE	WOOD BLUEGRASS	naturalized	
Poa palustris	POACEAE	FOWL BLUEGRASS	naturalized	
Poa piperi	POACEAE	PIPER'S BLUEGRASS	native	
Poa pratensis	POACEAE	BLUEGRASS	naturalized	
Poa pratensis subsp. pratensis	POACEAE	KENTUCKY BLUEGRASS	naturalized	
Poa pringlei	POACEAE	BLUEGRASS	native	
Poa rhizomata	POACEAE	TIMBER BLUEGRASS	native	
Poa secunda	POACEAE	BLUEGRASS	native	
Poa secunda subsp. juncifolia	POACEAE	BLUEGRASS	native	
Poa secunda subsp. secunda	POACEAE	ONE-SIDED BLUEGRASS	native	
Poa sierrae	POACEAE	BLUEGRASS	native	
Poa stebbinsii	POACEAE	BLUEGRASS	native	
Poa tenerrima	POACEAE	DELICATE BLUEGRASS	native	
Poa trivialis	POACEAE	ROUGH BLUEGRASS	naturalized	
Poa unilateralis	POACEAE	OCEAN-BLUFF BLUEGRASS	native	
Poa wheeleri	POACEAE	BLUEGRASS	native	
Podistera nevadensis	APIACEAE	SIERRA PODISTERA	native	
Pogogyne abramsii	LAMIACEAE	SAN DIEGO MESA MINT	native	
Pogogyne clareana	LAMIACEAE	SANTA LUCIA MINT	native	
Pogogyne douglasii	LAMIACEAE		native	
Pogogyne floribunda	LAMIACEAE	PROFUSE-FLOWERED POGOYNE	native	
Pogogyne nudiuscula	LAMIACEAE	OTAY MESA MINT	native	
Pogogyne serpylloides	LAMIACEAE		native	
Pogogyne zizyphoroides	LAMIACEAE		native	
Polanisia dodecandra	BRASSICACEAE	CLAMMY WEED	native	
Polanisia dodecandra subsp. trachysperma	BRASSICACEAE	CLAMMY WEED	native	
Polemonium californicum	POLEMONIACEAE		native	
Polemonium carneum	POLEMONIACEAE		native	
Polemonium chartaceum	POLEMONIACEAE	MASON'S SKY PILOT	native	
Polemonium eximium	POLEMONIACEAE	SKY PILOT	native	
Polemonium micranthum	POLEMONIACEAE		native	
Polemonium occidentale	POLEMONIACEAE		native	
Polemonium occidentale subsp. occidentale	POLEMONIACEAE		native	
Polemonium pulcherrimum	POLEMONIACEAE		native	
Polemonium pulcherrimum var. pilosum	POLEMONIACEAE		native	
Polemonium pulcherrimum var. pulcherrimum	POLEMONIACEAE		native	
Poliomintha incana	LAMIACEAE		native	
Polycarpon depressum	CARYOPHYLLACEAE	POLYCARP	native	
Polycarpon tetraphyllum	CARYOPHYLLACEAE	FOUR-LEAVED ALLSEED	naturalized	
Polycarpon tetraphyllum var. tetraphyllum	CARYOPHYLLACEAE		naturalized	
Polyctenium fremontii	BRASSICACEAE		native	
Polyctenium fremontii var. confertum	BRASSICACEAE		native	
Polyctenium fremontii var. fremontii	BRASSICACEAE		native	
Polyctenium williamsiae	BRASSICACEAE		native	acceptance uncertain
Polygala acanthoclada	POLYGALACEAE	MILKWORT	native	
Polygala californica	POLYGALACEAE	MILKWORT	native	
Polygala cornuta	POLYGALACEAE	MILKWORT	native	
Polygala cornuta var. cornuta	POLYGALACEAE	MILKWORT	native	
Polygala cornuta var. fishiae	POLYGALACEAE	FISH'S MILKWORT	native	
Polygala heterorhyncha	POLYGALACEAE	NOTCH-BEAKED MILKWORT	native	
Polygala intermontana	POLYGALACEAE	MILKWORT	native	
Polygala myrtifolia	POLYGALACEAE		naturalized	acceptance uncertain
Polygala subspinosa	POLYGALACEAE	SPINY MILKWORT	native	
Polygonum argyrocoleon	POLYGONACEAE	KNOTWEED; SMARTWEED	naturalized	
Polygonum austiniae	POLYGONACEAE		native	
Polygonum aviculare	POLYGONACEAE		naturalized	
Polygonum aviculare subsp. aviculare	POLYGONACEAE		naturalized	
Polygonum aviculare subsp. depressum	POLYGONACEAE		naturalized	
Polygonum bidwelliae	POLYGONACEAE	BIDWELL'S KNOTWEED	native	
Polygonum bolanderi	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum californicum	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum douglasii	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum fowleri	POLYGONACEAE		native	
Polygonum fowleri subsp. fowleri	POLYGONACEAE		native	
Polygonum hickmanii	POLYGONACEAE		native	
Polygonum majus	POLYGONACEAE		native	
Polygonum marinense	POLYGONACEAE	MARIN KNOTWEED	native	
Polygonum minimum	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum paronychia	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum parryi	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum polygaloides	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum polygaloides subsp. confertiflorum	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum polygaloides subsp. esotericum	POLYGONACEAE	MODOC COUNTY KNOTWEED	native	
Polygonum polygaloides subsp. kelloggii	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum ramosissimum	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum ramosissimum subsp. prolificum	POLYGONACEAE		naturalized	
Polygonum ramosissimum subsp. ramosissimum	POLYGONACEAE		native	
Polygonum sawatchense	POLYGONACEAE		native	
Polygonum sawatchense subsp. oblivium	POLYGONACEAE		native	
Polygonum sawatchense subsp. sawatchense	POLYGONACEAE		native	
Polygonum shastense	POLYGONACEAE	KNOTWEED; SMARTWEED	native	
Polygonum spergulariiforme	POLYGONACEAE		native	
Polypodium californicum	POLYPODIACEAE	CALIFORNIA POLYPODY	native	
Polypodium calirhiza	POLYPODIACEAE	POLYPODY	native	
Polypodium glycyrrhiza	POLYPODIACEAE	LICORICE FERN	native	
Polypodium hesperium	POLYPODIACEAE	WESTERN POLYPODY	native	
Polypodium scouleri	POLYPODIACEAE	LEATHER-LEAF FERN	native	
Polypogon australis	POACEAE	CHILEAN BEARD GRASS	naturalized	
Polypogon imberbis	POACEAE		naturalized	acceptance uncertain
Polypogon interruptus	POACEAE	DITCH BEARD GRASS	naturalized	
Polypogon maritimus	POACEAE	MEDITERRANEAN BEARD GRASS	naturalized	
Polypogon monspeliensis	POACEAE	ANNUAL BEARD GRASS	naturalized	
Polystichum californicum	DRYOPTERIDACEAE	SWORD FERN	native	
Polystichum dudleyi	DRYOPTERIDACEAE	SWORD FERN	native	
Polystichum imbricans	DRYOPTERIDACEAE	SWORD FERN	native	
Polystichum imbricans subsp. curtum	DRYOPTERIDACEAE	SWORD FERN	native	
Polystichum imbricans subsp. imbricans	DRYOPTERIDACEAE	SWORD FERN	native	
Polystichum kruckebergii	DRYOPTERIDACEAE	KRUCKEBERG'S SWORD FERN	native	
Polystichum lemmonii	DRYOPTERIDACEAE	SWORD FERN	native	
Polystichum lonchitis	DRYOPTERIDACEAE	HOLLY FERN	native	
Polystichum munitum	DRYOPTERIDACEAE	WESTERN SWORD FERN	native	
Polystichum scopulinum	DRYOPTERIDACEAE	SWORD FERN	native	
Populus alba	SALICACEAE	WHITE POPLAR	naturalized	
Populus angustifolia	SALICACEAE	NARROW-LEAVED COTTONWOOD	native	
Populus fremontii	SALICACEAE	ASPEN; COTTONWOOD; POPLAR	native	
Populus fremontii subsp. fremontii	SALICACEAE	ALAMO COTTONWOOD; FREMONT COTTONWOOD	native	
Populus nigra var. italica	SALICACEAE		naturalized	acceptance uncertain
Populus nigra var. nigra	SALICACEAE		naturalized	acceptance uncertain
Populus tremuloides	SALICACEAE	QUAKING ASPEN	native	
Porophyllum gracile	ASTERACEAE	ODORA	native	
Porterella carnosula	CAMPANULACEAE		native	
Portulaca halimoides	PORTULACACEAE		native	
Portulaca oleracea	PORTULACACEAE	COMMON PURSLANE	naturalized	
Potamogeton alpinus	POTAMOGETONACEAE	PONDWEED	native	
Potamogeton amplifolius	POTAMOGETONACEAE	BROAD-LEAVED PONDWEED	native	
Potamogeton berchtoldii	POTAMOGETONACEAE		native	
Potamogeton crispus	POTAMOGETONACEAE	CRISPATE-LEAVED PONDWEED	naturalized	
Potamogeton diversifolius	POTAMOGETONACEAE	DIVERSE-LEAVED PONDWEED	native	
Potamogeton epihydrus	POTAMOGETONACEAE	PONDWEED	native	
Potamogeton foliosus	POTAMOGETONACEAE	LEAFY PONDWEED	native	
Potamogeton foliosus subsp. fibrillosus	POTAMOGETONACEAE		native	
Potamogeton foliosus subsp. foliosus	POTAMOGETONACEAE		native	
Potamogeton gramineus	POTAMOGETONACEAE	GRASS-LEAVED PONDWEED	native	
Potamogeton illinoensis	POTAMOGETONACEAE	SHINING PONDWEED	native	
Potamogeton natans	POTAMOGETONACEAE	FLOATING-LEAVED PONDWEED	native	
Potamogeton nodosus	POTAMOGETONACEAE	LONG-LEAVED PONDWEED	native	
Potamogeton praelongus	POTAMOGETONACEAE	WHITE-STEMMED PONDWEED	native	
Potamogeton pusillus	POTAMOGETONACEAE	SMALL PONDWEED	native	
Potamogeton richardsonii	POTAMOGETONACEAE	RICHARDSON'S PONDWEED	native	
Potamogeton robbinsii	POTAMOGETONACEAE	ROBBINS' PONDWEED	native	
Potamogeton zosteriformis	POTAMOGETONACEAE	EEL-GRASS PONDWEED	native	
Potentilla anglica	ROSACEAE		naturalized	
Potentilla anserina	ROSACEAE	CINQUEFOIL	native	
Potentilla anserina subsp. anserina	ROSACEAE	CINQUEFOIL	native	
Potentilla anserina subsp. pacifica	ROSACEAE	CINQUEFOIL	native	
Potentilla basaltica	ROSACEAE		native	
Potentilla biennis	ROSACEAE	CINQUEFOIL	native	
Potentilla concinna	ROSACEAE	ALPINE CINQUEFOIL	native	
Potentilla concinna var. proxima	ROSACEAE		native	
Potentilla cristae	ROSACEAE	CRESTED POTENTILLA	native	
Potentilla diversifolia	ROSACEAE	CINQUEFOIL	native	
Potentilla diversifolia var. diversifolia	ROSACEAE	CINQUEFOIL	native	
Potentilla drummondii	ROSACEAE	CINQUEFOIL	native	
Potentilla drummondii subsp. breweri	ROSACEAE	CINQUEFOIL	native	
Potentilla drummondii subsp. bruceae	ROSACEAE	CINQUEFOIL	native	
Potentilla drummondii subsp. drummondii	ROSACEAE	CINQUEFOIL	native	
Potentilla flabellifolia	ROSACEAE	FAN-FOIL	native	
Potentilla fruticosa	ROSACEAE	SHRUBBY CINQUEFOIL	native	
Potentilla glandulosa	ROSACEAE	CINQUEFOIL	native	
Potentilla glandulosa subsp. ashlandica	ROSACEAE	CINQUEFOIL	native	
Potentilla glandulosa subsp. ewanii	ROSACEAE	EWAN'S CINQUEFOIL	native	
Potentilla glandulosa subsp. glandulosa	ROSACEAE	CINQUEFOIL	native	
Potentilla glandulosa subsp. globosa	ROSACEAE	CINQUEFOIL	native	
Potentilla glandulosa subsp. hansenii	ROSACEAE	CINQUEFOIL	native	
Potentilla glandulosa subsp. nevadensis	ROSACEAE	CINQUEFOIL	native	
Potentilla glandulosa subsp. pseudorupestris	ROSACEAE	CINQUEFOIL	native	
Potentilla glandulosa subsp. reflexa	ROSACEAE	CINQUEFOIL	native	
Potentilla gracilis	ROSACEAE	CINQUEFOIL	native	
Potentilla gracilis var. elmeri	ROSACEAE	CINQUEFOIL	native	
Potentilla gracilis var. fastigiata	ROSACEAE	CINQUEFOIL	native	
Potentilla gracilis var. flabelliformis	ROSACEAE	CINQUEFOIL	native	
Potentilla gracilis var. gracilis	ROSACEAE	CINQUEFOIL	native	
Potentilla grayi	ROSACEAE	CINQUEFOIL	native	
Potentilla hickmanii	ROSACEAE	HICKMAN'S CINQUEFOIL	native	
Potentilla millefolia	ROSACEAE	CINQUEFOIL	native	
Potentilla morefieldii	ROSACEAE	MOREFIELD'S CINQUEFOIL	native	
Potentilla newberryi	ROSACEAE	NEWBERRY'S CINQUEFOIL	native	
Potentilla norvegica	ROSACEAE	CINQUEFOIL	naturalized	
Potentilla palustris	ROSACEAE	CINQUEFOIL	native	
Potentilla pensylvanica	ROSACEAE	CINQUEFOIL	native	
Potentilla pensylvanica var. ovium	ROSACEAE		native	
Potentilla pseudosericea	ROSACEAE	CINQUEFOIL	native	
Potentilla pulcherrima	ROSACEAE		native	
Potentilla recta	ROSACEAE	CINQUEFOIL	naturalized	
Potentilla rimicola	ROSACEAE	CLIFF CINQUEFOIL	native	
Potentilla rivalis	ROSACEAE	CINQUEFOIL	native	
Potentilla wheeleri	ROSACEAE	CINQUEFOIL	native	
Prenanthella exigua	ASTERACEAE		native	
Primula suffrutescens	PRIMULACEAE	SIERRA PRIMROSE	native	
Proboscidea althaeifolia	MARTYNIACEAE	DESERT UNICORN PLANT	native	
Proboscidea louisianica	MARTYNIACEAE	DEVIL'S CLAW; UNICORN PLANT	naturalized	
Proboscidea louisianica subsp. louisianica	MARTYNIACEAE	COMMON UNICORN PLANT	naturalized	
Proboscidea lutea	MARTYNIACEAE	DEVIL'S CLAW; UNICORN PLANT	naturalized	
Prosartes hookeri	COLCHICACEAE		native	
Prosartes smithii	LILIACEAE		native	
Prosopis glandulosa	FABACEAE	MESQUITE	native	
Prosopis glandulosa var. torreyana	FABACEAE	HONEY MESQUITE; MESQUITE	native	
Prosopis pubescens	FABACEAE	SCREW BEAN; TORNILLO	native	
Prosopis velutina	FABACEAE	MESQUITE	naturalized	
Prunella vulgaris	LAMIACEAE	SELF-HEAL	native	
Prunella vulgaris var. lanceolata	LAMIACEAE	SELF-HEAL	native	
Prunella vulgaris var. vulgaris	LAMIACEAE	SELF-HEAL	naturalized	
Prunus andersonii	ROSACEAE	DESERT PEACH	native	
Prunus avium	ROSACEAE		naturalized	acceptance uncertain
Prunus cerasifera	ROSACEAE	CHERRY PLUM	naturalized	
Prunus dulcis	ROSACEAE	ALMOND	naturalized	
Prunus emarginata	ROSACEAE	BITTER CHERRY	native	
Prunus eremophila	ROSACEAE		native	acceptance uncertain
Prunus fasciculata	ROSACEAE	DESERT ALMOND	native	
Prunus fasciculata var. fasciculata	ROSACEAE		native	
Prunus fasciculata var. punctata	ROSACEAE		native	
Prunus fremontii	ROSACEAE	DESERT APRICOT	native	
Prunus ilicifolia	ROSACEAE		native	
Prunus ilicifolia subsp. ilicifolia	ROSACEAE	HOLLY-LEAFED CHERRY; ISLAY	native	
Prunus ilicifolia subsp. lyonii	ROSACEAE	CATALINA CHERRY	native	
Prunus laurocerasus	ROSACEAE		naturalized	
Prunus subcordata	ROSACEAE		native	
Prunus virginiana	ROSACEAE		native	
Prunus virginiana var. demissa	ROSACEAE	WESTERN CHOKE-CHERRY	native	
Psathyrotes annua	ASTERACEAE		native	
Psathyrotes ramosissima	ASTERACEAE	TURTLEBACK	native	
Pseudobahia bahiifolia	ASTERACEAE	HARTWEG'S PSEUDOBAHIA	native	
Pseudobahia heermannii	ASTERACEAE		native	
Pseudobahia peirsonii	ASTERACEAE	TULARE PSEUDOBAHIA	native	
Pseudognaphalium beneolens	ASTERACEAE		native	
Pseudognaphalium canescens	ASTERACEAE		native	
Pseudognaphalium microcephalum	ASTERACEAE		native	
Pseudognaphalium roseum	ASTERACEAE		native	
Pseudognaphalium thermale	ASTERACEAE		native	
Pseudoroegneria spicata	POACEAE		native	
Pseudoroegneria spicata subsp. spicata	POACEAE		native	
Pseudosasa japonica	POACEAE		naturalized	acceptance uncertain
Pseudostellaria jamesiana	CARYOPHYLLACEAE		native	
Pseudostellaria sierrae	CARYOPHYLLACEAE		native	
Pseudotrillium rivale	MELANTHIACEAE		native	acceptance uncertain
Pseudotsuga macrocarpa	PINACEAE	BIGCONE DOUGLAS-FIR; BIGCONE SPRUCE	native	
Pseudotsuga menziesii	PINACEAE	DOUGLAS-FIR	native	
Pseudotsuga menziesii var. menziesii	PINACEAE	DOUGLAS-FIR	native	
Psilocarphus brevissimus	ASTERACEAE	WOOLLY MARBLES; WOOLLY-HEADS	native	
Psilocarphus brevissimus var. brevissimus	ASTERACEAE	DWARF WOOLLY-HEADS	native	
Psilocarphus brevissimus var. multiflorus	ASTERACEAE	DELTA WOOLLY MARBLES	native	
Psilocarphus chilensis	ASTERACEAE		native	
Psilocarphus elatior	ASTERACEAE	TALL WOOLLY-HEADS	native	
Psilocarphus oregonus	ASTERACEAE	OREGON WOOLLY-HEADS	native	
Psilocarphus tenellus	ASTERACEAE	WOOLLY MARBLES; WOOLLY-HEADS	native	
Psilostrophe cooperi	ASTERACEAE	PAPER-DAISY	native	
Psorothamnus arborescens	FABACEAE		native	
Psorothamnus arborescens var. arborescens	FABACEAE	MOJAVE INDIGO BUSH	native	
Psorothamnus arborescens var. minutifolius	FABACEAE		native	
Psorothamnus arborescens var. simplicifolius	FABACEAE		native	
Psorothamnus emoryi	FABACEAE		native	
Psorothamnus fremontii	FABACEAE		native	
Psorothamnus fremontii var. attenuatus	FABACEAE		native	
Psorothamnus fremontii var. fremontii	FABACEAE		native	
Psorothamnus polydenius	FABACEAE		native	
Psorothamnus schottii	FABACEAE		native	
Psorothamnus spinosus	FABACEAE	SMOKE TREE	native	
Ptelea crenulata	RUTACEAE	HOP TREE	native	
Pteridium aquilinum	DENNSTAEDTIACEAE	BRACKEN; BRAKE	native	
Pteridium aquilinum var. pubescens	DENNSTAEDTIACEAE	BRACKEN; BRAKE	native	
Pteris cretica	PTERIDACEAE	CRETAN BRAKE	naturalized	
Pteris tremula	PTERIDACEAE	BRAKE	naturalized	
Pteris vittata	PTERIDACEAE	BRAKE	naturalized	
Pterospora andromedea	ERICACEAE	PINEDROPS	native	
Pterostegia drymarioides	POLYGONACEAE		native	
Ptilagrostis kingii	POACEAE	KING'S RICEGRASS	native	
Puccinellia distans	POACEAE	EUROPEAN ALKALI GRASS	naturalized	
Puccinellia howellii	POACEAE	HOWELL'S ALKALI GRASS	native	
Puccinellia lemmonii	POACEAE	LEMMON'S ALKALI GRASS	native	
Puccinellia nutkaensis	POACEAE	ALASKA ALKALI GRASS	native	
Puccinellia nuttalliana	POACEAE	NUTTALL'S ALKALI GRASS	native	
Puccinellia parishii	POACEAE	PARISH'S ALKALI GRASS	native	
Puccinellia pumila	POACEAE	DWARF ALKALI GRASS	native	
Puccinellia simplex	POACEAE	ALKALI GRASS	native	
Pulicaria paludosa	ASTERACEAE		naturalized	
Punica granatum	LYTHRACEAE	POMEGRANATE	naturalized	
Purshia mexicana	ROSACEAE	ANTELOPE BUSH	native	
Purshia mexicana var. stansburyana	ROSACEAE	ANTELOPE BUSH	native	
Purshia tridentata	ROSACEAE	ANTELOPE BUSH	native	
Purshia tridentata var. glandulosa	ROSACEAE	ANTELOPE BUSH	native	
Purshia tridentata var. tridentata	ROSACEAE	ANTELOPE BUSH	native	
Pycnanthemum californicum	LAMIACEAE		native	
Pyracantha angustifolia	ROSACEAE	FIRETHORN	naturalized	
Pyracantha crenatoserrata	ROSACEAE		naturalized	
Pyrola asarifolia	ERICACEAE	SHINLEAF; WINTERGREEN	native	
Pyrola asarifolia subsp. asarifolia	ERICACEAE	BOG WINTERGREEN	native	
Pyrola asarifolia subsp. bracteata	ERICACEAE	LONG-BRACTED WINTERGREEN	native	
Pyrola chlorantha	ERICACEAE	GREEN-FLOWERED WINTERGREEN	native	
Pyrola minor	ERICACEAE	LESSER WINTERGREEN	native	
Pyrola picta	ERICACEAE	WHITE-VEINED WINTERGREEN	native	
Pyrrocoma apargioides	ASTERACEAE		native	
Pyrrocoma carthamoides	ASTERACEAE		native	
Pyrrocoma carthamoides var. cusickii	ASTERACEAE		native	
Pyrrocoma hirta	ASTERACEAE		native	
Pyrrocoma hirta var. hirta	ASTERACEAE		native	
Pyrrocoma hirta var. lanulosa	ASTERACEAE		native	
Pyrrocoma lanceolata	ASTERACEAE		native	
Pyrrocoma lanceolata var. lanceolata	ASTERACEAE		native	
Pyrrocoma lanceolata var. subviscosa	ASTERACEAE		native	
Pyrrocoma lucida	ASTERACEAE		native	
Pyrrocoma racemosa	ASTERACEAE		native	
Pyrrocoma racemosa var. congesta	ASTERACEAE	DEL NORTE HAPLOPAPPUS	native	
Pyrrocoma racemosa var. paniculata	ASTERACEAE		native	
Pyrrocoma racemosa var. pinetorum	ASTERACEAE		native	
Pyrrocoma racemosa var. racemosa	ASTERACEAE		native	
Pyrrocoma racemosa var. sessiliflora	ASTERACEAE		native	
Pyrrocoma uniflora	ASTERACEAE		native	
Pyrrocoma uniflora var. gossypina	ASTERACEAE	BEAR VALLEY HAPLOPAPPUS	native	
Pyrrocoma uniflora var. uniflora	ASTERACEAE		native	
Pyrus communis	ROSACEAE		naturalized	acceptance uncertain
Quercus agrifolia	FAGACEAE	COAST LIVE OAK; ENCINA	native	
Quercus agrifolia var. agrifolia	FAGACEAE	OAK	native	
Quercus agrifolia var. oxyadenia	FAGACEAE	OAK	native	
Quercus berberidifolia	FAGACEAE	SCRUB OAK	native	
Quercus cedrosensis	FAGACEAE		native	
Quercus chrysolepis	FAGACEAE	CANYON LIVE OAK; MAUL OAK	native	
Quercus cornelius-mulleri	FAGACEAE	MULLER'S OAK	native	
Quercus douglasii	FAGACEAE	BLUE OAK	native	
Quercus dumosa	FAGACEAE	NUTTALL'S SCRUB OAK	native	
Quercus durata	FAGACEAE	LEATHER OAK	native	
Quercus durata var. durata	FAGACEAE	OAK	native	
Quercus durata var. gabrielensis	FAGACEAE	OAK	native	
Quercus engelmannii	FAGACEAE	ENGELMANN OAK; MESA OAK	native	
Quercus garryana	FAGACEAE	OREGON OAK	native	
Quercus garryana var. breweri	FAGACEAE	OAK	native	
Quercus garryana var. garryana	FAGACEAE	OAK	native	
Quercus garryana var. semota	FAGACEAE		native	
Quercus ilex	FAGACEAE		naturalized	
Quercus john-tuckeri	FAGACEAE	TUCKER'S OAK	native	
Quercus kelloggii	FAGACEAE	CALIFORNIA BLACK OAK	native	
Quercus lobata	FAGACEAE	ROBLE; VALLEY OAK	native	
Quercus pacifica	FAGACEAE		native	
Quercus palmeri	FAGACEAE	PALMER'S OAK	native	
Quercus parvula	FAGACEAE	OAK	native	
Quercus parvula var. parvula	FAGACEAE	SANTA CRUZ ISLAND OAK	native	
Quercus parvula var. shrevei	FAGACEAE	OAK	native	
Quercus parvula var. tamalpaisensis	FAGACEAE		native	
Quercus sadleriana	FAGACEAE	DEER OAK	native	
Quercus tomentella	FAGACEAE	ISLAND OAK	native	
Quercus turbinella	FAGACEAE	SHRUB LIVE OAK	native	
Quercus vacciniifolia	FAGACEAE	HUCKLEBERRY OAK	native	
Quercus wislizeni	FAGACEAE	INTERIOR LIVE OAK	native	
Quercus wislizeni var. frutescens	FAGACEAE	OAK	native	
Quercus wislizeni var. wislizeni	FAGACEAE	OAK	native	
Rafinesquia californica	ASTERACEAE	CALIFORNIA CHICORY	native	
Rafinesquia neomexicana	ASTERACEAE	DESERT CHICORY	native	
Raillardella argentea	ASTERACEAE	SILKY RAILLARDELLA	native	
Raillardella pringlei	ASTERACEAE	SHOWY RAILLARDELLA	native	
Raillardella scaposa	ASTERACEAE		native	
Ranunculus acris	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus alismifolius	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus alismifolius var. alismellus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus alismifolius var. alismifolius	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus andersonii	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus aquatilis	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus aquatilis var. aquatilis	RANUNCULACEAE		native	acceptance uncertain
Ranunculus aquatilis var. capillaceus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus aquatilis var. subrigidus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus arvensis	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus bonariensis	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus bonariensis var. trisepalus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus bulbosus	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus californicus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus canus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus cymbalaria	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus eschscholtzii	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus eschscholtzii var. oxynotus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus eschscholtzii var. suksdorfii	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus flabellaris	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus flammula	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus glaberrimus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus glaberrimus var. ellipticus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus glaberrimus var. glaberrimus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus gormanii	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus hebecarpus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus hydrocharoides	RANUNCULACEAE	FROG'S-BIT BUTTERCUP	native	
Ranunculus hystriculus	RANUNCULACEAE		native	
Ranunculus lobbii	RANUNCULACEAE	LOBB'S AQUATIC BUTTERCUP	native	
Ranunculus macounii	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus muricatus	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus occidentalis	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus orthorhynchus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus orthorhynchus var. bloomeri	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus orthorhynchus var. orthorhynchus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus parviflorus	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus populago	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus pusillus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus repens	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus sardous	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus sceleratus	RANUNCULACEAE	BUTTERCUP	native	
Ranunculus testiculatus	RANUNCULACEAE	BUTTERCUP	naturalized	
Ranunculus uncinatus	RANUNCULACEAE	BUTTERCUP	native	
Raphanus raphanistrum	BRASSICACEAE	JOINTED CHARLOCK	naturalized	
Raphanus sativus	BRASSICACEAE	RADISH	naturalized	
Rapistrum rugosum	BRASSICACEAE	WILD TURNIP	naturalized	
Ratibida columnifera	ASTERACEAE		naturalized	acceptance uncertain
Reseda alba	RESEDACEAE	WHITE MIGNONETTE	naturalized	
Reseda lutea	RESEDACEAE	YELLOW MIGNONETTE	naturalized	
Reseda luteola	RESEDACEAE	DYER'S ROCKET	naturalized	
Reseda odorata	RESEDACEAE	GARDEN MIGNONETTE	naturalized	
Rhagadiolus stellatus	ASTERACEAE		naturalized	
Rhamnus alnifolia	RHAMNACEAE	ALDER BUCKTHORN	native	
Rhamnus crocea	RHAMNACEAE	SPINY REDBERRY	native	
Rhamnus ilicifolia	RHAMNACEAE	HOLLY-LEAF REDBERRY	native	
Rhamnus pilosa	RHAMNACEAE	BUCKTHORN	native	
Rhamnus pirifolia	RHAMNACEAE	ISLAND REDBERRY	native	
Rhodiola integrifolia	CRASSULACEAE	WESTERN ROSEROOT	native	
Rhodiola integrifolia subsp. integrifolia	CRASSULACEAE		native	
Rhododendron macrophyllum	ERICACEAE	CALIFORNIA ROSE-BAY	native	
Rhododendron neoglandulosum	ERICACEAE		native	acceptance uncertain
Rhododendron occidentale	ERICACEAE	WESTERN AZALEA	native	
Rhus aromatica	ANACARDIACEAE		native	
Rhus integrifolia	ANACARDIACEAE	LEMONADEBERRY	native	
Rhus lancea	ANACARDIACEAE		naturalized	
Rhus ovata	ANACARDIACEAE	SUGAR BUSH	native	
Rhynchelytrum repens	POACEAE	NATAL GRASS	naturalized	
Rhynchospora alba	CYPERACEAE	WHITE BEAKED-RUSH	native	
Rhynchospora californica	CYPERACEAE	CALIFORNIA BEAKED-RUSH	native	
Rhynchospora capitellata	CYPERACEAE	BEAKED-RUSH	native	
Rhynchospora globularis	CYPERACEAE	BEAKED-RUSH	native	
Rhynchospora globularis var. globularis	CYPERACEAE	ROUND-HEADED BEAKED-RUSH	native	
Ribes amarum	GROSSULARIACEAE	BITTER GOOSEBERRY	native	
Ribes aureum	GROSSULARIACEAE	GOLDEN CURRANT	native	
Ribes aureum var. aureum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes aureum var. gracillimum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes binominatum	GROSSULARIACEAE	TRAILING GOOSEBERRY	native	
Ribes bracteosum	GROSSULARIACEAE	STINK CURRANT	native	
Ribes californicum	GROSSULARIACEAE	HILLSIDE GOOSEBERRY	native	
Ribes californicum var. californicum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes californicum var. hesperium	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes canthariforme	GROSSULARIACEAE	MORENO CURRANT	native	
Ribes cereum	GROSSULARIACEAE	WAX CURRANT	native	
Ribes cereum var. cereum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes cereum var. inebrians	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes divaricatum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes divaricatum var. parishii	GROSSULARIACEAE	PARISH'S GOOSEBERRY	native	
Ribes divaricatum var. pubiflorum	GROSSULARIACEAE	STRAGGLY GOOSEBERRY	native	
Ribes hudsonianum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes hudsonianum var. petiolare	GROSSULARIACEAE	WESTERN BLACK CURRANT	native	
Ribes indecorum	GROSSULARIACEAE	WHITE FLOWERING CURRANT	native	
Ribes inerme	GROSSULARIACEAE	WHITE-STEMMED GOOSEBERRY	native	
Ribes inerme var. inerme	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes inerme var. klamathense	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes lacustre	GROSSULARIACEAE	SWAMP CURRANT	native	
Ribes lasianthum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes laxiflorum	GROSSULARIACEAE	TRAILING BLACK CURRANT	native	
Ribes lobbii	GROSSULARIACEAE	GUMMY GOOSEBERRY	native	
Ribes malvaceum	GROSSULARIACEAE	CHAPARRAL CURRANT	native	
Ribes malvaceum var. malvaceum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes malvaceum var. viridifolium	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes marshallii	GROSSULARIACEAE	MARSHALL'S GOOSEBERRY	native	
Ribes menziesii	GROSSULARIACEAE	CANYON GOOSEBERRY	native	
Ribes menziesii var. ixoderme	GROSSULARIACEAE		native	
Ribes menziesii var. menziesii	GROSSULARIACEAE		native	
Ribes montigenum	GROSSULARIACEAE	MOUNTAIN GOOSEBERRY	native	
Ribes nevadense	GROSSULARIACEAE	MOUNTAIN PINK CURRANT	native	
Ribes quercetorum	GROSSULARIACEAE	OAK GOOSEBERRY	native	
Ribes roezlii	GROSSULARIACEAE	SIERRA GOOSEBERRY	native	
Ribes roezlii var. amictum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes roezlii var. cruentum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes roezlii var. roezlii	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes sanguineum	GROSSULARIACEAE	RED FLOWERING CURRANT	native	
Ribes sanguineum var. glutinosum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes sanguineum var. sanguineum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes sericeum	GROSSULARIACEAE	SANTA LUCIA GOOSEBERRY	native	
Ribes speciosum	GROSSULARIACEAE	FUCHSIA-FLOWERED GOOSEBERRY	native	
Ribes thacherianum	GROSSULARIACEAE	SANTA CRUZ ISLAND GOOSEBERRY	native	
Ribes tularense	GROSSULARIACEAE	SEQUOIA GOOSEBERRY	native	
Ribes velutinum	GROSSULARIACEAE	CURRANT; GOOSEBERRY	native	
Ribes viburnifolium	GROSSULARIACEAE	EVERGREEN CURRANT; SANTA CATALINA ISLAND CURRANT	native	
Ribes victoris	GROSSULARIACEAE	VICTOR'S GOOSEBERRY	native	
Ribes viscosissimum	GROSSULARIACEAE	STICKY CURRANT	native	
Ricinus communis	EUPHORBIACEAE	CASTOR BEAN	naturalized	
Rigiopappus leptocladus	ASTERACEAE		native	
Robinia hispida	FABACEAE		naturalized	
Robinia neomexicana	FABACEAE	DESERT LOCUST	native	
Robinia pseudoacacia	FABACEAE	BLACK LOCUST	naturalized	
Romanzoffia californica	BORAGINACEAE		native	
Romanzoffia sitchensis	BORAGINACEAE		native	
Romanzoffia tracyi	BORAGINACEAE		native	
Romneya coulteri	PAPAVERACEAE	COULTER'S MATILIJA POPPY	native	
Romneya trichocalyx	PAPAVERACEAE	HAIRY MATILIJA POPPY	native	
Romulea rosea	IRIDACEAE		naturalized	
Romulea rosea var. australis	IRIDACEAE		naturalized	
Rorippa austriaca	BRASSICACEAE	AUSTRIAN FIELD-CRESS	naturalized	
Rorippa columbiae	BRASSICACEAE	COLUMBIA YELLOW CRESS	native	
Rorippa curvipes	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa curvipes var. curvipes	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa curvipes var. truncata	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa curvisiliqua	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa palustris	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa palustris var. hispida	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa palustris var. occidentalis	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa sinuata	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa sphaerocarpa	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rorippa subumbellata	BRASSICACEAE	TAHOE WATER CRESS	native	
Rorippa tenerrima	BRASSICACEAE	WATER CRESS; YELLOW CRESS	native	
Rosa bridgesii	ROSACEAE		native	
Rosa californica	ROSACEAE	CALIFORNIA ROSE	native	
Rosa canina	ROSACEAE	DOG ROSE	naturalized	
Rosa gymnocarpa	ROSACEAE	WOOD ROSE	native	
Rosa minutifolia	ROSACEAE	SMALL-LEAVED ROSE	native	
Rosa multiflora	ROSACEAE		naturalized	acceptance uncertain
Rosa nutkana	ROSACEAE		native	
Rosa nutkana var. nutkana	ROSACEAE	NOOTKA ROSE	native	
Rosa pinetorum	ROSACEAE	PINE ROSE	native	
Rosa pisocarpa	ROSACEAE	CLUSTER ROSE	native	
Rosa rubiginosa	ROSACEAE		naturalized	
Rosa spithamea	ROSACEAE	GROUND ROSE	native	
Rosa woodsii	ROSACEAE		native	
Rosa woodsii subsp. gratissima	ROSACEAE		native	
Rosa woodsii var. ultramontana	ROSACEAE	INTERIOR ROSE	native	
Rotala indica	LYTHRACEAE		naturalized	
Rotala ramosior	LYTHRACEAE		native	
Rottboellia cochinchinensis	POACEAE		naturalized	acceptance uncertain
Rubus discolor	ROSACEAE	HIMALAYAN BLACKBERRY	naturalized	
Rubus glaucifolius	ROSACEAE		native	
Rubus laciniatus	ROSACEAE	CUT-LEAVED BLACKBERRY	naturalized	
Rubus lasiococcus	ROSACEAE		native	
Rubus leucodermis	ROSACEAE	BLACKCAP RASPBERRY	native	
Rubus nivalis	ROSACEAE	SNOW DWARF BRAMBLE	native	
Rubus parviflorus	ROSACEAE	THIMBLEBERRY	native	
Rubus pensilvanicus	ROSACEAE		naturalized	
Rubus spectabilis	ROSACEAE	SALMONBERRY	native	
Rubus ulmifolius	ROSACEAE		naturalized	
Rubus ulmifolius var. inermis	ROSACEAE		naturalized	
Rubus ursinus	ROSACEAE	CALIFORNIA BLACKBERRY	native	
Rudbeckia californica	ASTERACEAE	CALIFORNIA CONE-FLOWER	native	
Rudbeckia glaucescens	ASTERACEAE		native	acceptance uncertain
Rudbeckia hirta	ASTERACEAE	CONE-FLOWER	naturalized	
Rudbeckia hirta var. pulcherrima	ASTERACEAE	BLACK-EYED SUSAN	naturalized	
Rudbeckia klamathensis	ASTERACEAE		native	acceptance uncertain
Rudbeckia occidentalis	ASTERACEAE	CONE-FLOWER	native	
Rudbeckia occidentalis var. occidentalis	ASTERACEAE	WESTERN CONE-FLOWER	native	
Rumex acetosella	POLYGONACEAE	SHEEP SORREL	naturalized	
Rumex britannica	POLYGONACEAE		native	
Rumex californicus	POLYGONACEAE		native	
Rumex conglomeratus	POLYGONACEAE	DOCK	naturalized	
Rumex crassus	POLYGONACEAE		native	
Rumex crispus	POLYGONACEAE	CURLY DOCK	naturalized	
Rumex dentatus	POLYGONACEAE	DOCK	naturalized	
Rumex fueginus	POLYGONACEAE		native	
Rumex hymenosepalus	POLYGONACEAE	CANAIGRE; WILD-RHUBARB	native	
Rumex kerneri	POLYGONACEAE	DOCK	naturalized	
Rumex maritimus	POLYGONACEAE	GOLDEN DOCK	native	
Rumex obtusifolius	POLYGONACEAE	BITTER DOCK	naturalized	
Rumex occidentalis	POLYGONACEAE	WESTERN DOCK	native	
Rumex orbiculatus	POLYGONACEAE	DOCK	naturalized	
Rumex paucifolius	POLYGONACEAE	DOCK	native	
Rumex persicarioides	POLYGONACEAE		native	
Rumex pulcher	POLYGONACEAE	FIDDLE DOCK	naturalized	
Rumex salicifolius	POLYGONACEAE	WILLOW DOCK	native	
Rumex salicifolius var. lacustris	POLYGONACEAE	DOCK	native	
Rumex salicifolius var. salicifolius	POLYGONACEAE	DOCK	native	
Rumex salicifolius var. transitorius	POLYGONACEAE	DOCK	native	
Rumex stenophyllus	POLYGONACEAE	DOCK	naturalized	
Rumex triangulivalvis	POLYGONACEAE		native	
Rumex utahensis	POLYGONACEAE		native	
Rumex venosus	POLYGONACEAE	WILD-BEGONIA; WINGED DOCK	native	
Rumex violascens	POLYGONACEAE	MEXICAN DOCK	native	
Rupertia hallii	FABACEAE	RUPERT'S SCURF-PEA	native	
Rupertia physodes	FABACEAE	RUPERT'S SCURF-PEA	native	
Rupertia rigida	FABACEAE	PARISH'S PSORALEA	native	
Ruppia cirrhosa	RUPPIACEAE	DITCH-GRASS	native	
Ruppia maritima	RUPPIACEAE	DITCH-GRASS	native	
Ruta chalepensis	RUTACEAE		naturalized	
Rytidosperma clavatum	POACEAE		naturalized	acceptance uncertain
Rytidosperma penicillatum	POACEAE		naturalized	acceptance uncertain
Rytidosperma racemosum	POACEAE		naturalized	
Saccharum ravennae	POACEAE	RAVENNAGRASS	naturalized	
Sagina apetala	CARYOPHYLLACEAE	DWARF PEARLWORT	naturalized	
Sagina decumbens	CARYOPHYLLACEAE	PEARLWORT	native	
Sagina decumbens subsp. occidentalis	CARYOPHYLLACEAE	WESTERN PEARLWORT	native	
Sagina maxima	CARYOPHYLLACEAE	PEARLWORT	native	
Sagina maxima subsp. crassicaulis	CARYOPHYLLACEAE	PEARLWORT	native	
Sagina procumbens	CARYOPHYLLACEAE	ARCTIC PEARLWORT	naturalized	
Sagina saginoides	CARYOPHYLLACEAE	PEARLWORT	native	
Sagittaria cuneata	ALISMATACEAE	ARROWHEAD; TULE POTATO; WAPATO	native	
Sagittaria latifolia	ALISMATACEAE	ARROWHEAD; TULE POTATO; WAPATO	native	
Sagittaria longiloba	ALISMATACEAE	ARROWHEAD; TULE POTATO; WAPATO	native	
Sagittaria montevidensis	ALISMATACEAE	ARROWHEAD; TULE POTATO; WAPATO	native	
Sagittaria montevidensis subsp. calycina	ALISMATACEAE	ARROWHEAD; TULE POTATO; WAPATO	native	
Sagittaria rigida	ALISMATACEAE		naturalized	
Sagittaria sanfordii	ALISMATACEAE	SANFORD'S ARROWHEAD	native	
Salazaria mexicana	LAMIACEAE	BLADDER SAGE	native	
Salicornia bigelovii	CHENOPODIACEAE	PICKLEWEED	native	
Salicornia depressa	CHENOPODIACEAE		native	
Salicornia subterminalis	CHENOPODIACEAE	PICKLEWEED	native	
Salicornia virginica	CHENOPODIACEAE	PICKLEWEED	native	
Salix alba	SALICACEAE	WHITE WILLOW	naturalized	
Salix babylonica	SALICACEAE	WEEPING WILLOW	naturalized	
Salix bebbiana	SALICACEAE	GRAY WILLOW	native	
Salix boothii	SALICACEAE	BOOTH'S WILLOW	native	
Salix brachycarpa	SALICACEAE	WILLOW	native	
Salix brachycarpa var. brachycarpa	SALICACEAE		native	
Salix breweri	SALICACEAE	BREWER'S WILLOW	native	
Salix delnortensis	SALICACEAE	DEL NORTE WILLOW	native	
Salix drummondiana	SALICACEAE	DRUMMOND'S WILLOW	native	
Salix eastwoodiae	SALICACEAE	SIERRA WILLOW	native	
Salix exigua	SALICACEAE	NARROW-LEAVED WILLOW	native	
Salix exigua var. exigua	SALICACEAE		native	
Salix exigua var. hindsiana	SALICACEAE		native	
Salix geyeriana	SALICACEAE	GEYER'S WILLOW	native	
Salix gooddingii	SALICACEAE	GOODDING'S BLACK WILLOW	native	
Salix hookeriana	SALICACEAE	COASTAL WILLOW	native	
Salix jepsonii	SALICACEAE	JEPSON'S WILLOW	native	
Salix laevigata	SALICACEAE	RED WILLOW	native	
Salix lasiandra	SALICACEAE		native	
Salix lasiandra var. caudata	SALICACEAE		native	
Salix lasiandra var. lasiandra	SALICACEAE		native	
Salix lasiolepis	SALICACEAE	ARROYO WILLOW	native	
Salix lemmonii	SALICACEAE	LEMMON'S WILLOW	native	
Salix ligulifolia	SALICACEAE	STRAP-LEAFED WILLOW	native	
Salix lutea	SALICACEAE	YELLOW WILLOW	native	
Salix melanopsis	SALICACEAE	DUSKY WILLOW	native	
Salix nivalis	SALICACEAE		native	
Salix orestera	SALICACEAE	GRAY-LEAFED SIERRA WILLOW	native	
Salix petrophila	SALICACEAE		native	
Salix planifolia	SALICACEAE	WILLOW	native	
Salix prolixa	SALICACEAE	MACKENZIE'S WILLOW	native	
Salix purpurea	SALICACEAE		naturalized	
Salix scouleriana	SALICACEAE	SCOULER'S WILLOW	native	
Salix sitchensis	SALICACEAE	SITKA WILLOW	native	
Salix tracyi	SALICACEAE		native	
Salpichroa origanifolia	SOLANACEAE		naturalized	
Salsola damascena	CHENOPODIACEAE		naturalized	
Salsola kali	CHENOPODIACEAE		naturalized	acceptance uncertain
Salsola kali subsp. pontica	CHENOPODIACEAE		naturalized	acceptance uncertain
Salsola paulsenii	CHENOPODIACEAE		naturalized	
Salsola soda	CHENOPODIACEAE		naturalized	
Salsola tragus	CHENOPODIACEAE	RUSSIAN THISTLE; TUMBLEWEED	naturalized	
Saltugilia australis	POLEMONIACEAE		native	
Saltugilia caruifolia	POLEMONIACEAE		native	
Saltugilia latimeri	POLEMONIACEAE		native	
Saltugilia splendens	POLEMONIACEAE		native	
Saltugilia splendens subsp. grantii	POLEMONIACEAE		native	
Saltugilia splendens subsp. splendens	POLEMONIACEAE		native	
Salvia aethiopis	LAMIACEAE	MEDITERRANEAN SAGE	naturalized	
Salvia apiana	LAMIACEAE	WHITE SAGE	native	
Salvia brandegeei	LAMIACEAE	BRANDEGEE'S SAGE	native	
Salvia carduacea	LAMIACEAE	THISTLE SAGE	native	
Salvia clevelandii	LAMIACEAE		native	
Salvia columbariae	LAMIACEAE	CHIA	native	
Salvia columbariae var. columbariae	LAMIACEAE		native	acceptance uncertain
Salvia dorrii	LAMIACEAE		native	
Salvia dorrii var. dorrii	LAMIACEAE		native	
Salvia dorrii var. incana	LAMIACEAE	FLESHY SAGE	native	
Salvia dorrii var. pilosa	LAMIACEAE		native	
Salvia eremostachya	LAMIACEAE	DESERT SAGE	native	
Salvia funerea	LAMIACEAE	DEATH VALLEY SAGE	native	
Salvia greatae	LAMIACEAE	OROCOPIA SAGE	native	
Salvia leucophylla	LAMIACEAE	PURPLE SAGE	native	
Salvia longistyla	LAMIACEAE		naturalized	
Salvia mellifera	LAMIACEAE	BLACK SAGE	native	
Salvia mohavensis	LAMIACEAE		native	
Salvia munzii	LAMIACEAE	MUNZ'S SAGE	native	
Salvia pachyphylla	LAMIACEAE		native	
Salvia sonomensis	LAMIACEAE		native	
Salvia spathacea	LAMIACEAE	PITCHER SAGE	native	
Salvia vaseyi	LAMIACEAE		native	
Salvia verbenacea	LAMIACEAE		naturalized	
Salvia virgata	LAMIACEAE		naturalized	acceptance uncertain
Salvinia molesta	SALVINIACEAE		naturalized	acceptance uncertain
Sambucus nigra	ADOXACEAE		native	
Sambucus nigra subsp. caerulea	ADOXACEAE		native	
Sambucus racemosa	ADOXACEAE	RED ELDERBERRY	native	
Sambucus racemosa var. melanocarpa	ADOXACEAE		native	
Sambucus racemosa var. racemosa	ADOXACEAE	ELDERBERRY	native	
Samolus parviflorus	THEOPHRASTACEAE	BROOKWEED; WATER-PIMPERNEL	native	
Sanguisorba minor	ROSACEAE		naturalized	
Sanguisorba minor subsp. muricata	ROSACEAE	GARDEN BURNET	naturalized	
Sanguisorba officinalis	ROSACEAE	GREAT BURNET	native	
Sanicula arctopoides	APIACEAE	FOOTSTEPS OF SPRING; YELLOW MATS	native	
Sanicula arguta	APIACEAE		native	
Sanicula bipinnata	APIACEAE	POISON SANICLE	native	
Sanicula bipinnatifida	APIACEAE	PURPLE SANICLE; SHOE BUTTONS	native	
Sanicula crassicaulis	APIACEAE		native	
Sanicula graveolens	APIACEAE		native	
Sanicula hoffmannii	APIACEAE	HOFFMANN'S SANICLE	native	
Sanicula laciniata	APIACEAE		native	
Sanicula maritima	APIACEAE	ADOBE SANICLE	native	
Sanicula peckiana	APIACEAE	PECK'S SANICLE	native	
Sanicula saxatilis	APIACEAE	ROCK SANICLE	native	
Sanicula tracyi	APIACEAE	TRACY'S SANICLE	native	
Sanicula tuberosa	APIACEAE		native	
Santolina chamaecyparissus	ASTERACEAE	LAVENDER-COTTON	naturalized	
Sanvitalia abertii	ASTERACEAE	ABERT'S SANVITALIA	native	
Sapium sebiferum	EUPHORBIACEAE		naturalized	
Saponaria officinalis	CARYOPHYLLACEAE	BOUNCING BET; SOAPWORT	naturalized	
Sarcobatus baileyi	SARCOBATACEAE		native	
Sarcobatus vermiculatus	SARCOBATACEAE	GREASEWOOD	native	
Sarcodes sanguinea	ERICACEAE	SNOW PLANT	native	
Sarracenia purpurea	SARRACENIACEAE	PITCHER PLANT	naturalized	
Sarracenia purpurea subsp. purpurea	SARRACENIACEAE		naturalized	
Sarracenia purpurea subsp. venosa	SARRACENIACEAE		naturalized	
Satureja calamintha	LAMIACEAE		naturalized	acceptance uncertain
Satureja calamintha subsp. ascendens	LAMIACEAE		naturalized	acceptance uncertain
Satureja chandleri	LAMIACEAE	SAN MIGUEL SAVORY	native	
Satureja douglasii	LAMIACEAE	YERBA BUENA	native	
Satureja mimuloides	LAMIACEAE		native	
Saussurea americana	ASTERACEAE	AMERICAN SAWWORT	native	
Saxifraga aprica	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga bryophora	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga californica	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga cespitosa	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga ferruginea	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga howellii	SAXIFRAGACEAE	HOWELL'S SAXIFRAGE	native	
Saxifraga integrifolia	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga marshallii	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga mertensiana	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga nidifica	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga nidifica var. nidifica	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga nuttallii	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga odontoloma	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga oregana	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga rivularis	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga rufidula	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifraga stolonifera	SAXIFRAGACEAE	STRAWBERRY-GERANIUM	naturalized	
Saxifraga tolmiei	SAXIFRAGACEAE	SAXIFRAGE	native	
Saxifragopsis fragarioides	SAXIFRAGACEAE		native	
Scabiosa atropurpurea	DIPSACACEAE	PINCUSHION FLOWER	naturalized	
Scandix pecten-veneris	APIACEAE	VENUS' NEEDLE	naturalized	
Schedonnardus paniculatus	POACEAE		naturalized	acceptance uncertain
Scheuchzeria palustris	SCHEUCHZERIACEAE		native	
Schinus molle	ANACARDIACEAE	PERUVIAN PEPPER TREE	naturalized	
Schinus polygamus	ANACARDIACEAE		naturalized	
Schinus terebinthifolius	ANACARDIACEAE	BRAZILIAN PEPPER TREE	naturalized	
Schismus arabicus	POACEAE	MEDITERRANEAN GRASS	naturalized	
Schismus barbatus	POACEAE	MEDITERRANEAN GRASS	naturalized	
Schizachyrium scoparium	POACEAE	LITTLE BLUESTEM	naturalized	acceptance uncertain
Schkuhria multiflora	ASTERACEAE		native	
Schkuhria multiflora var. multiflora	ASTERACEAE		native	
Schoenoplectus acutus	CYPERACEAE		native	
Schoenoplectus acutus var. occidentalis	CYPERACEAE		native	
Schoenoplectus americanus	CYPERACEAE		native	
Schoenoplectus californicus	CYPERACEAE		native	
Schoenoplectus heterochaetus	CYPERACEAE		native	
Schoenoplectus mucronatus	CYPERACEAE		naturalized	
Schoenoplectus pungens	CYPERACEAE		native	acceptance uncertain
Schoenoplectus pungens var. badius	CYPERACEAE		native	acceptance uncertain
Schoenoplectus pungens var. longispicatus	CYPERACEAE		native	acceptance uncertain
Schoenoplectus saximontanus	CYPERACEAE		native	
Schoenoplectus subterminalis	CYPERACEAE		native	
Schoenoplectus tabernaemontani	CYPERACEAE		native	
Schoenoplectus × contortus	CYPERACEAE		native	
Schoenus nigricans	CYPERACEAE	BLACK SEDGE	native	
Scirpus congdonii	CYPERACEAE		native	
Scirpus cyperinus	CYPERACEAE		naturalized	
Scirpus diffusus	CYPERACEAE		native	
Scirpus microcarpus	CYPERACEAE		native	
Scirpus pendulus	CYPERACEAE		native	
Scleranthus annuus	CARYOPHYLLACEAE	KNAWEL	naturalized	
Scleranthus annuus subsp. annuus	CARYOPHYLLACEAE	KNAWEL	naturalized	
Sclerocactus polyancistrus	CACTACEAE	MOJAVE FISH-HOOK CACTUS	native	
Sclerochloa dura	POACEAE	HARDGRASS	naturalized	
Sclerolinon digynum	LINACEAE		native	
Scleropogon brevifolius	POACEAE	BURRO GRASS	native	
Scoliopus bigelovii	LILIACEAE		native	
Scolymus hispanicus	ASTERACEAE	GOLDEN THISTLE	naturalized	
Scopulophila rixfordii	CARYOPHYLLACEAE	RIXFORD ROCKWORT	native	
Scorzonera hispanica	ASTERACEAE	SPANISH SALSIFY; VIPER'S GRASS	naturalized	
Scribneria bolanderi	POACEAE		native	
Scrophularia atrata	SCROPHULARIACEAE	BLACK-FLOWERED FIGWORT	native	
Scrophularia californica	SCROPHULARIACEAE	CALIFORNIA FIGWORT	native	
Scrophularia californica subsp. californica	SCROPHULARIACEAE	FIGWORT	native	
Scrophularia californica subsp. floribunda	SCROPHULARIACEAE	FIGWORT	native	
Scrophularia desertorum	SCROPHULARIACEAE	FIGWORT	native	
Scrophularia lanceolata	SCROPHULARIACEAE	FIGWORT	native	
Scrophularia peregrina	SCROPHULARIACEAE		naturalized	
Scrophularia villosa	SCROPHULARIACEAE	SANTA CATALINA FIGWORT	native	
Scutellaria antirrhinoides	LAMIACEAE	SKULLCAP	native	
Scutellaria bolanderi	LAMIACEAE	SKULLCAP	native	
Scutellaria bolanderi subsp. austromontana	LAMIACEAE	SOUTHERN SKULLCAP	native	
Scutellaria bolanderi subsp. bolanderi	LAMIACEAE	SKULLCAP	native	
Scutellaria californica	LAMIACEAE	SKULLCAP	native	
Scutellaria galericulata	LAMIACEAE	MARSH SKULLCAP	native	
Scutellaria lateriflora	LAMIACEAE	BLUE SKULLCAP	native	
Scutellaria nana	LAMIACEAE	SKULLCAP	native	
Scutellaria siphocampyloides	LAMIACEAE	SKULLCAP	native	
Scutellaria tuberosa	LAMIACEAE	SKULLCAP	native	
Secale cereale	POACEAE	RYE	naturalized	
Sedella leiocarpa	CRASSULACEAE		native	
Sedella pentandra	CRASSULACEAE		native	
Sedella pumila	CRASSULACEAE		native	
Sedum albomarginatum	CRASSULACEAE	FEATHER RIVER STONECROP	native	
Sedum album	CRASSULACEAE		naturalized	
Sedum divergens	CRASSULACEAE	CASCADE STONECROP	native	
Sedum lanceolatum	CRASSULACEAE		native	
Sedum laxum	CRASSULACEAE		native	
Sedum laxum subsp. eastwoodiae	CRASSULACEAE		native	
Sedum laxum subsp. flavidum	CRASSULACEAE	PALE YELLOW STONECROP	native	
Sedum laxum subsp. heckneri	CRASSULACEAE	HECKNER'S STONECROP	native	
Sedum laxum subsp. laxum	CRASSULACEAE		native	
Sedum niveum	CRASSULACEAE	DAVIDSON'S STONECROP	native	
Sedum oblanceolatum	CRASSULACEAE	APPLEGATE STONECROP	native	
Sedum obtusatum	CRASSULACEAE		native	
Sedum obtusatum subsp. boreale	CRASSULACEAE		native	
Sedum obtusatum subsp. obtusatum	CRASSULACEAE		native	
Sedum obtusatum subsp. paradisum	CRASSULACEAE		native	
Sedum obtusatum subsp. retusum	CRASSULACEAE		native	
Sedum oreganum	CRASSULACEAE		native	
Sedum oregonense	CRASSULACEAE		native	
Sedum praealtum	CRASSULACEAE		naturalized	
Sedum radiatum	CRASSULACEAE		native	
Sedum spathulifolium	CRASSULACEAE		native	
Sedum stenopetalum	CRASSULACEAE		native	
Selaginella asprella	SELAGINELLACEAE	BLUISH SPIKE-MOSS	native	
Selaginella bigelovii	SELAGINELLACEAE	SPIKE-MOSS	native	
Selaginella cinerascens	SELAGINELLACEAE	ASHY SPIKE-MOSS	native	
Selaginella eremophila	SELAGINELLACEAE	DESERT SPIKE-MOSS	native	
Selaginella hansenii	SELAGINELLACEAE	SPIKE-MOSS	native	
Selaginella kraussiana	SELAGINELLACEAE		naturalized	acceptance uncertain
Selaginella leucobryoides	SELAGINELLACEAE	MOJAVE SPIKE-MOSS	native	
Selaginella oregana	SELAGINELLACEAE	SPIKE-MOSS	native	
Selaginella scopulorum	SELAGINELLACEAE		native	
Selaginella wallacei	SELAGINELLACEAE	SPIKE-MOSS	native	
Selaginella watsonii	SELAGINELLACEAE	SPIKE-MOSS	native	
Senecio aphanactis	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio aronicoides	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio astephanus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio blochmaniae	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio californicus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio clarkianus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio elegans	ASTERACEAE	PURPLE RAGWORT	naturalized	
Senecio flaccidus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio flaccidus var. douglasii	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio flaccidus var. monoensis	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio fremontii	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio fremontii var. fremontii	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio fremontii var. occidentalis	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio glomeratus f. ex	ASTERACEAE		naturalized	
Senecio hydrophiloides	ASTERACEAE	SWEET MARSH RAGWORT	native	
Senecio hydrophilus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio integerrimus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio integerrimus var. exaltatus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio integerrimus var. major	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio integerrimus var. ochroleucus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio jacobaea	ASTERACEAE	TANSY RAGWORT	naturalized	
Senecio lyonii	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio minimus	ASTERACEAE		naturalized	
Senecio mohavensis	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio pattersonensis	ASTERACEAE	MONO RAGWORT	native	
Senecio scorzonella	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio serra	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio serra var. serra	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio spartioides	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio sylvaticus	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	naturalized	
Senecio triangularis	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	native	
Senecio vulgaris	ASTERACEAE	BUTTERWEED; GROUNDSEL; RAGWORT	naturalized	
Senegalia greggii	FABACEAE		native	
Senna armata	FABACEAE	SPINY SENNA	native	
Senna artemisioides	FABACEAE		naturalized	
Senna covesii	FABACEAE	COUES' CASSIA	native	
Senna didymobotrya	FABACEAE		naturalized	
Senna multiglandulosa	FABACEAE		naturalized	
Sequoia sempervirens	CUPRESSACEAE	REDWOOD	native	
Sequoiadendron giganteum	CUPRESSACEAE	GIANT SEQUOIA	native	
Sericocarpus oregonensis	ASTERACEAE		native	
Sericocarpus oregonensis subsp. californicus	ASTERACEAE		native	
Sericocarpus oregonensis subsp. oregonensis	ASTERACEAE		native	
Sesbania herbacea	FABACEAE		native	
Sesbania punicea	FABACEAE		naturalized	
Sesuvium verrucosum	AIZOACEAE	WESTERN SEA-PURSLANE	native	
Setaria adhaerens	POACEAE		naturalized	acceptance uncertain
Setaria faberi	POACEAE		naturalized	
Setaria gracilis	POACEAE		native	
Setaria parviflora	POACEAE		native	acceptance uncertain
Setaria pumila	POACEAE		naturalized	
Setaria pumila subsp. pallidefusca	POACEAE		naturalized	acceptance uncertain
Setaria pumila subsp. pumila	POACEAE		naturalized	acceptance uncertain
Setaria sphacelata	POACEAE		naturalized	
Setaria verticillata	POACEAE		naturalized	
Setaria viridis	POACEAE		naturalized	
Shepherdia argentea	ELAEAGNACEAE	BUFFALO BERRY	native	
Shepherdia canadensis	ELAEAGNACEAE		native	
Sherardia arvensis	RUBIACEAE	FIELD MADDER	naturalized	
Sibara deserti	BRASSICACEAE		native	
Sibara filifolia	BRASSICACEAE	SANTA CRUZ ISLAND ROCK CRESS	native	
Sibara rosulata	BRASSICACEAE		native	
Sibara virginica	BRASSICACEAE		native	
Sibaropsis hammittii	BRASSICACEAE		native	
Sibbaldia procumbens	ROSACEAE		native	
Sida rhombifolia	MALVACEAE		naturalized	
Sida spinosa	MALVACEAE		naturalized	acceptance uncertain
Sidalcea calycosa	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea calycosa subsp. calycosa	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea calycosa subsp. rhizomata	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea covillei	MALVACEAE	OWENS VALLEY CHECKERBLOOM	native	
Sidalcea diploscypha	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea glaucescens	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea hartwegii	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea hickmanii	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea hickmanii subsp. anomala	MALVACEAE	CUESTA PASS CHECKERBLOOM	native	
Sidalcea hickmanii subsp. hickmanii	MALVACEAE	HICKMAN'S CHECKERBLOOM	native	
Sidalcea hickmanii subsp. napensis	MALVACEAE		native	
Sidalcea hickmanii subsp. parishii	MALVACEAE	PARISH'S CHECKERBLOOM	native	
Sidalcea hickmanii subsp. pillsburiensis	MALVACEAE		native	
Sidalcea hickmanii subsp. viridis	MALVACEAE	MARIN CHECKERBLOOM	native	
Sidalcea hirsuta	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea keckii	MALVACEAE	KECK'S CHECKERBLOOM	native	
Sidalcea malachroides	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora	MALVACEAE	CHECKER MALLOW	native	
Sidalcea malviflora subsp. asprella	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora subsp. californica	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora subsp. dolosa	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora subsp. laciniata	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora subsp. malviflora	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora subsp. patula	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora subsp. purpurea	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea malviflora subsp. sparsifolia	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea multifida	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea neomexicana	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea oregana	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea oregana subsp. eximia	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea oregana subsp. hydrophila	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea oregana subsp. oregana	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea oregana subsp. spicata	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea oregana subsp. valida	MALVACEAE	KENWOOD MARSH CHECKERBLOOM	native	
Sidalcea pedata	MALVACEAE	BIRD-FOOTED CHECKERBLOOM	native	
Sidalcea ranunculacea	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea reptans	MALVACEAE	CHECKER MALLOW; CHECKERBLOOM	native	
Sidalcea robusta	MALVACEAE	BUTTE COUNTY CHECKERBLOOM	native	
Sidalcea stipularis	MALVACEAE	SCADDEN FLAT CHECKERBLOOM	native	
Sidotheca caryophylloides	POLYGONACEAE		native	
Sidotheca emarginata	POLYGONACEAE		native	
Sidotheca trilobata	POLYGONACEAE		native	
Silene antirrhina	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene aperta	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene armeria	CARYOPHYLLACEAE		naturalized	
Silene bernardina	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene bolanderi	CARYOPHYLLACEAE		native	
Silene bridgesii	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene campanulata	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene campanulata subsp. campanulata	CARYOPHYLLACEAE	RED MOUNTAIN CATCHFLY	native	
Silene campanulata subsp. glandulosa	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene coniflora	CARYOPHYLLACEAE		naturalized	
Silene conoidea	CARYOPHYLLACEAE	CAMPION; CATCHFLY	naturalized	
Silene dichotoma	CARYOPHYLLACEAE	CAMPION; CATCHFLY	naturalized	
Silene dichotoma subsp. dichotoma	CARYOPHYLLACEAE		naturalized	
Silene douglasii	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene douglasii var. douglasii	CARYOPHYLLACEAE		native	
Silene gallica	CARYOPHYLLACEAE	CAMPION; CATCHFLY	naturalized	
Silene grayi	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene hookeri	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene invisa	CARYOPHYLLACEAE	SHORT-PETALED CAMPION	native	
Silene laciniata	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene laciniata subsp. californica	CARYOPHYLLACEAE		native	
Silene laciniata subsp. laciniata	CARYOPHYLLACEAE		native	
Silene latifolia	CARYOPHYLLACEAE	CAMPION; CATCHFLY	naturalized	
Silene lemmonii	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene marmorensis	CARYOPHYLLACEAE	MARBLE MOUNTAIN CAMPION	native	
Silene menziesii	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene noctiflora	CARYOPHYLLACEAE	CAMPION; CATCHFLY	naturalized	
Silene nuda	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene occidentalis	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene oregana	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene parishii	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene salmonacea	CARYOPHYLLACEAE		native	
Silene sargentii	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene scouleri	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene scouleri subsp. scouleri	CARYOPHYLLACEAE		native	
Silene serpentinicola	CARYOPHYLLACEAE		native	
Silene suksdorfii	CARYOPHYLLACEAE	CASCADE ALPINE CAMPION	native	
Silene verecunda	CARYOPHYLLACEAE	CAMPION; CATCHFLY	native	
Silene vulgaris	CARYOPHYLLACEAE	CAMPION; CATCHFLY	naturalized	
Silybum marianum	ASTERACEAE	MILK THISTLE	naturalized	
Simmondsia chinensis	SIMMONDSIACEAE	GOAT-NUT; JOJOBA; PIG-NUT	native	
Sinapis alba	BRASSICACEAE	WHITE MUSTARD	naturalized	
Sinapis arvensis	BRASSICACEAE	CHARLOCK	naturalized	
Sisymbrium altissimum	BRASSICACEAE	JIM HILL MUSTARD; TUMBLE MUSTARD	naturalized	
Sisymbrium erysimoides	BRASSICACEAE		naturalized	
Sisymbrium irio	BRASSICACEAE	LONDON ROCKET	naturalized	
Sisymbrium loeselii	BRASSICACEAE		naturalized	
Sisymbrium officinale	BRASSICACEAE	HEDGE MUSTARD	naturalized	
Sisymbrium orientale	BRASSICACEAE		naturalized	
Sisyrinchium bellum	IRIDACEAE	BLUE-EYED-GRASS	native	
Sisyrinchium californicum	IRIDACEAE	GOLDEN-EYED-GRASS	native	
Sisyrinchium elmeri	IRIDACEAE		native	
Sisyrinchium funereum	IRIDACEAE		native	
Sisyrinchium halophilum	IRIDACEAE		native	
Sisyrinchium hitchcockii	IRIDACEAE		native	
Sisyrinchium idahoense	IRIDACEAE		native	
Sisyrinchium idahoense var. idahoense	IRIDACEAE		native	
Sisyrinchium idahoense var. occidentale	IRIDACEAE		native	
Sisyrinchium longipes	IRIDACEAE		native	
Sium suave	APIACEAE		native	
Smelowskia ovalis	BRASSICACEAE		native	
Smelowskia ovalis var. congesta	BRASSICACEAE	LASSEN PEAK SMELOWSKIA	native	
Smilax californica	SMILACACEAE		native	
Smilax jamesii	SMILACACEAE	ENGLISH PEAK GREENBRIAR	native	
Solanum americanum	SOLANACEAE	NIGHTSHADE	native	
Solanum aviculare	SOLANACEAE	NIGHTSHADE	naturalized	
Solanum carolinense	SOLANACEAE	CAROLINA HORSE-NETTLE	naturalized	
Solanum douglasii	SOLANACEAE	NIGHTSHADE	native	
Solanum dulcamara	SOLANACEAE	NIGHTSHADE	naturalized	
Solanum elaeagnifolium	SOLANACEAE	WHITE HORSE-NETTLE	naturalized	
Solanum furcatum	SOLANACEAE	NIGHTSHADE	naturalized	
Solanum lanceolatum	SOLANACEAE	LANCELEAF NIGHTSHADE	naturalized	
Solanum marginatum	SOLANACEAE	WHITE-MARGINED NIGHTSHADE	naturalized	
Solanum mauritianum	SOLANACEAE		naturalized	
Solanum nigrum	SOLANACEAE	BLACK NIGHTSHADE	naturalized	
Solanum parishii	SOLANACEAE	NIGHTSHADE	native	
Solanum physalifolium	SOLANACEAE		naturalized	
Solanum physalifolium var. nitidibaccatum	SOLANACEAE		naturalized	
Solanum rostratum	SOLANACEAE	BUFFALO BERRY	naturalized	
Solanum sisymbriifolium	SOLANACEAE	NIGHTSHADE	naturalized	
Solanum triflorum	SOLANACEAE	NIGHTSHADE	naturalized	
Solanum umbelliferum	SOLANACEAE	NIGHTSHADE	native	
Solanum wallacei	SOLANACEAE	WALLACE'S NIGHTSHADE	native	
Solanum xanti	SOLANACEAE	NIGHTSHADE	native	
Soleirolia soleirolii	URTICACEAE	BABY'S TEARS	naturalized	
Solidago altissima	ASTERACEAE	GOLDENROD	naturalized	
Solidago altissima var. altissima	ASTERACEAE	LATE GOLDENROD	naturalized	
Solidago canadensis	ASTERACEAE	GOLDENROD	native	
Solidago canadensis subsp. elongata	ASTERACEAE	CANADA GOLDENROD	native	
Solidago confinis	ASTERACEAE	SOUTHERN GOLDENROD	native	
Solidago gigantea	ASTERACEAE	SMOOTH GOLDENROD	native	acceptance uncertain
Solidago guiradonis	ASTERACEAE	GUIRADO'S GOLDENROD	native	
Solidago multiradiata	ASTERACEAE	NORTHERN GOLDENROD	native	
Solidago sparsiflora	ASTERACEAE	GOLDENROD	native	
Solidago spathulata	ASTERACEAE	GOLDENROD	native	
Solidago spathulata subsp. spathulata	ASTERACEAE	COAST GOLDENROD	native	
Solidago spectabilis	ASTERACEAE	SHOWY GOLDENROD	native	
Solidago velutina	ASTERACEAE		native	
Solidago velutina subsp. californica	ASTERACEAE		native	
Soliva sessilis	ASTERACEAE		naturalized	
Sonchus arvensis	ASTERACEAE	PERENNIAL SOW THISTLE	naturalized	
Sonchus asper	ASTERACEAE	SOW THISTLE	naturalized	
Sonchus asper subsp. asper	ASTERACEAE	PRICKLY SOW THISTLE	naturalized	
Sonchus oleraceus	ASTERACEAE	COMMON SOW THISTLE	naturalized	
Sonchus tenerrimus	ASTERACEAE	SOW THISTLE	naturalized	
Sorbus aucuparia	ROSACEAE	MOUNTAIN ASH	naturalized	
Sorbus californica	ROSACEAE	MOUNTAIN ASH	native	
Sorbus scopulina	ROSACEAE	MOUNTAIN ASH	native	
Sorbus scopulina var. cascadensis	ROSACEAE	MOUNTAIN ASH	native	
Sorbus scopulina var. scopulina	ROSACEAE	MOUNTAIN ASH	native	
Sorbus sitchensis	ROSACEAE	MOUNTAIN ASH	native	
Sorbus sitchensis var. grayi	ROSACEAE	MOUNTAIN ASH	native	
Sorghum bicolor	POACEAE	MILO; SORGHUM; SUDAN GRASS	naturalized	
Sorghum halepense	POACEAE	JOHNSONGRASS	naturalized	
Sparganium angustifolium	TYPHACEAE	NARROW-LEAVED BUR-REED	native	
Sparganium emersum	TYPHACEAE	BUR-REED	native	
Sparganium emersum subsp. emersum	TYPHACEAE	BUR-REED	native	
Sparganium erectum	TYPHACEAE	BUR-REED	native	
Sparganium erectum subsp. stoloniferum	TYPHACEAE	BUR-REED	native	
Sparganium eurycarpum	TYPHACEAE	BUR-REED	native	
Sparganium eurycarpum subsp. eurycarpum	TYPHACEAE	BUR-REED	native	
Sparganium natans	TYPHACEAE	SMALL BUR-REED	native	
Spartina alterniflora	POACEAE	SALT-WATER CORD GRASS	naturalized	
Spartina anglica	POACEAE		naturalized	
Spartina densiflora	POACEAE	DENSE-FLOWERED CORD GRASS	naturalized	
Spartina foliosa	POACEAE	CALIFORNIA CORD GRASS	native	
Spartina gracilis	POACEAE	ALKALI CORD GRASS	native	
Spartina patens	POACEAE	SALT-MEADOW CORD GRASS	naturalized	
Spartium junceum	FABACEAE	SPANISH BROOM	naturalized	
Spergula arvensis	CARYOPHYLLACEAE	SPURREY	naturalized	
Spergularia atrosperma	CARYOPHYLLACEAE	SAND-SPURREY	native	
Spergularia bocconi	CARYOPHYLLACEAE		naturalized	
Spergularia canadensis	CARYOPHYLLACEAE	SAND-SPURREY	native	
Spergularia canadensis var. occidentalis	CARYOPHYLLACEAE	SAND-SPURREY	native	
Spergularia macrotheca	CARYOPHYLLACEAE	SAND-SPURREY	native	
Spergularia macrotheca var. leucantha	CARYOPHYLLACEAE	SAND-SPURREY	native	
Spergularia macrotheca var. longistyla	CARYOPHYLLACEAE	SAND-SPURREY	native	
Spergularia macrotheca var. macrotheca	CARYOPHYLLACEAE	SAND-SPURREY	native	
Spergularia media	CARYOPHYLLACEAE	SAND-SPURREY	naturalized	
Spergularia media var. media	CARYOPHYLLACEAE		naturalized	
Spergularia platensis	CARYOPHYLLACEAE	SAND-SPURREY	naturalized	
Spergularia platensis var. platensis	CARYOPHYLLACEAE		naturalized	
Spergularia rubra	CARYOPHYLLACEAE	SAND-SPURREY	naturalized	
Spergularia salina	CARYOPHYLLACEAE		native	
Spergularia villosa	CARYOPHYLLACEAE	SAND-SPURREY	naturalized	
Spermolepis echinata	APIACEAE		native	
Sphaeralcea ambigua	MALVACEAE	APRICOT MALLOW	native	
Sphaeralcea ambigua var. ambigua	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea ambigua var. rosacea	MALVACEAE	PARISH MALLOW	native	
Sphaeralcea ambigua var. rugosa	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea angustifolia	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea coulteri	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea emoryi	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea emoryi var. emoryi	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea grossulariifolia	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea grossulariifolia var. grossulariifolia	MALVACEAE		native	acceptance uncertain
Sphaeralcea munroana	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea orcuttii	MALVACEAE	CARRIZO MALLOW	native	
Sphaeralcea rusbyi	MALVACEAE	GLOBEMALLOW	native	
Sphaeralcea rusbyi var. eremicola	MALVACEAE	PANAMINT MALLOW; RUSBY'S DESERT MALLOW	native	
Sphaeromeria cana	ASTERACEAE		native	
Sphaeromeria potentilloides	ASTERACEAE		native	
Sphaeromeria potentilloides var. nitrophila	ASTERACEAE		native	
Sphaeromeria potentilloides var. potentilloides	ASTERACEAE		native	
Sphenopholis obtusata	POACEAE	PRAIRIE WEDGEGRASS	native	
Sphenosciadium capitellatum	APIACEAE	RANGER'S BUTTONS; SWAMP WHITE HEADS	native	
Spinacia oleracea	CHENOPODIACEAE		naturalized	acceptance uncertain
Spiraea douglasii	ROSACEAE		native	
Spiranthes porrifolia	ORCHIDACEAE	LADIES TRESSES	native	
Spiranthes romanzoffiana	ORCHIDACEAE	LADIES TRESSES	native	
Spirodela polyrhiza	ARACEAE		native	
Sporobolus airoides	POACEAE	ALKALI SACATON	native	
Sporobolus contractus	POACEAE	SPIKE DROPSEED	native	
Sporobolus creber	POACEAE		naturalized	
Sporobolus cryptandrus	POACEAE	SAND DROPSEED	native	
Sporobolus flexuosus	POACEAE	MESA DROPSEED	native	
Sporobolus indicus	POACEAE	SMUTGRASS	naturalized	
Sporobolus vaginiflorus	POACEAE	POVERTY GRASS	naturalized	
Stachys ajugoides	LAMIACEAE	HEDGE NETTLE	native	
Stachys ajugoides var. ajugoides	LAMIACEAE	HEDGE NETTLE	native	
Stachys ajugoides var. rigida	LAMIACEAE	HEDGE NETTLE	native	
Stachys albens	LAMIACEAE	HEDGE NETTLE	native	
Stachys arvensis	LAMIACEAE	HEDGE NETTLE	naturalized	
Stachys bullata	LAMIACEAE	HEDGE NETTLE	native	
Stachys chamissonis	LAMIACEAE	HEDGE NETTLE	native	
Stachys palustris	LAMIACEAE	HEDGE NETTLE	native	
Stachys palustris subsp. pilosa	LAMIACEAE	HEDGE NETTLE	native	
Stachys pycnantha	LAMIACEAE	SHORT-SPIKED HEDGE NETTLE	native	
Stachys stebbinsii	LAMIACEAE		native	acceptance uncertain
Stachys stricta	LAMIACEAE	HEDGE NETTLE	native	
Stanleya elata	BRASSICACEAE	PRINCE'S PLUME	native	
Stanleya pinnata	BRASSICACEAE	PRINCE'S PLUME	native	
Stanleya pinnata var. inyoensis	BRASSICACEAE	PRINCE'S PLUME	native	
Stanleya pinnata var. pinnata	BRASSICACEAE	PRINCE'S PLUME	native	
Stanleya viridiflora	BRASSICACEAE	PRINCE'S PLUME	native	
Staphylea bolanderi	STAPHYLEACEAE	SIERRA BLADDERNUT	native	
Stebbinsoseris decipiens	ASTERACEAE	SANTA CRUZ MICROSERIS	native	
Stebbinsoseris heterocarpa	ASTERACEAE		native	
Stellaria borealis	CARYOPHYLLACEAE	CHICKWEED; STARWORT	native	
Stellaria borealis subsp. sitchana	CARYOPHYLLACEAE	CHICKWEED; STARWORT	native	
Stellaria calycantha	CARYOPHYLLACEAE	CHICKWEED; STARWORT	native	
Stellaria crispa	CARYOPHYLLACEAE	CHICKWEED; STARWORT	native	
Stellaria graminea	CARYOPHYLLACEAE	CHICKWEED; STARWORT	naturalized	
Stellaria littoralis	CARYOPHYLLACEAE	CHICKWEED; STARWORT	native	
Stellaria longifolia	CARYOPHYLLACEAE	LONG-LEAVED STARWORT	native	
Stellaria longipes	CARYOPHYLLACEAE	CHICKWEED; STARWORT	native	
Stellaria longipes subsp. longipes	CARYOPHYLLACEAE		native	
Stellaria media	CARYOPHYLLACEAE	COMMON CHICKWEED	naturalized	
Stellaria neglecta	CARYOPHYLLACEAE		naturalized	
Stellaria nitens	CARYOPHYLLACEAE	SHINING CHICKWEED	native	
Stellaria obtusa	CARYOPHYLLACEAE	OBTUSE STELLARIA	native	
Stellaria pallida	CARYOPHYLLACEAE	CHICKWEED; STARWORT	naturalized	
Stellaria umbellata	CARYOPHYLLACEAE	CHICKWEED; STARWORT	native	
Stemodia durantifolia	PLANTAGINACEAE		native	
Stenanthium occidentale	MELANTHIACEAE		native	
Stenotaphrum secundatum	POACEAE	SAINT AUGUSTINE GRASS	naturalized	
Stenotus acaulis	ASTERACEAE		native	
Stenotus lanuginosus	ASTERACEAE	WOOLLY STENOTUS	native	
Stenotus stenophyllus	ASTERACEAE		native	acceptance uncertain
Stephanomeria cichoriacea	ASTERACEAE		native	
Stephanomeria diegensis	ASTERACEAE		native	
Stephanomeria elata	ASTERACEAE		native	
Stephanomeria exigua	ASTERACEAE		native	
Stephanomeria exigua subsp. carotifera	ASTERACEAE		native	
Stephanomeria exigua subsp. coronaria	ASTERACEAE		native	
Stephanomeria exigua subsp. deanei	ASTERACEAE		native	
Stephanomeria exigua subsp. exigua	ASTERACEAE		native	
Stephanomeria exigua subsp. macrocarpa	ASTERACEAE		native	
Stephanomeria lactucina	ASTERACEAE		native	
Stephanomeria paniculata	ASTERACEAE		native	
Stephanomeria parryi	ASTERACEAE		native	
Stephanomeria pauciflora	ASTERACEAE	WIRE-LETTUCE	native	
Stephanomeria tenuifolia	ASTERACEAE	WIRE LETTUCE	native	
Stephanomeria virgata	ASTERACEAE		native	
Stephanomeria virgata subsp. pleurocarpa	ASTERACEAE		native	
Stephanomeria virgata subsp. virgata	ASTERACEAE		native	
Stillingia linearifolia	EUPHORBIACEAE		native	
Stillingia paucidentata	EUPHORBIACEAE		native	
Stillingia spinulosa	EUPHORBIACEAE		native	
Streptanthella longirostris	BRASSICACEAE		native	
Streptanthus albidus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus albidus subsp. albidus	BRASSICACEAE	METCALF CANYON JEWELFLOWER	native	
Streptanthus albidus subsp. peramoenus	BRASSICACEAE	UNCOMMON JEWELFLOWER	native	
Streptanthus barbatus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus barbiger	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus batrachopus	BRASSICACEAE	TAMALPAIS JEWELFLOWER	native	
Streptanthus bernardinus	BRASSICACEAE	LAGUNA MOUNTAINS JEWELFLOWER	native	
Streptanthus brachiatus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus brachiatus subsp. brachiatus	BRASSICACEAE	SOCRATES MINE JEWELFLOWER	native	
Streptanthus brachiatus subsp. hoffmanii	BRASSICACEAE	FREED'S JEWELFLOWER	native	
Streptanthus breweri	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus breweri var. breweri	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus breweri var. hesperidis	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus callistus	BRASSICACEAE	MOUNT HAMILTON JEWELFLOWER	native	
Streptanthus campestris	BRASSICACEAE	SOUTHERN JEWELFLOWER	native	
Streptanthus cordatus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus cordatus var. cordatus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus cordatus var. duranii	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus cordatus var. piutensis	BRASSICACEAE	PIUTE MOUNTAINS JEWELFLOWER	native	
Streptanthus diversifolius	BRASSICACEAE	VARIED-LEAVED JEWELFLOWER	native	
Streptanthus drepanoides	BRASSICACEAE	SICKLE-FRUIT JEWELFLOWER	native	
Streptanthus farnsworthianus	BRASSICACEAE	FARNSWORTH'S JEWELFLOWER	native	
Streptanthus fenestratus	BRASSICACEAE	TEHIPITE VALLEY JEWELFLOWER	native	
Streptanthus glandulosus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus glandulosus subsp. glandulosus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus glandulosus subsp. pulchellus	BRASSICACEAE	MOUNT TAMALPAIS JEWELFLOWER	native	
Streptanthus glandulosus subsp. secundus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus gracilis	BRASSICACEAE	ALPINE JEWELFLOWER	native	
Streptanthus hispidus	BRASSICACEAE	MOUNT DIABLO JEWELFLOWER	native	
Streptanthus howellii	BRASSICACEAE	HOWELL'S JEWELFLOWER	native	
Streptanthus insignis	BRASSICACEAE	SAN BENITO JEWELFLOWER	native	
Streptanthus insignis subsp. insignis	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus insignis subsp. lyonii	BRASSICACEAE	ARBURUA RANCH JEWELFLOWER	native	
Streptanthus longisiliquus	BRASSICACEAE		native	acceptance uncertain
Streptanthus morrisonii	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus niger	BRASSICACEAE	TIBURON JEWELFLOWER	native	
Streptanthus oliganthus	BRASSICACEAE	MASONIC MOUNTAIN JEWELFLOWER	native	
Streptanthus polygaloides	BRASSICACEAE	MILKWORT JEWELFLOWER	native	
Streptanthus tortuosus	BRASSICACEAE	MOUNTAIN JEWELFLOWER	native	
Streptanthus tortuosus var. flavescens	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus tortuosus var. orbiculatus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus tortuosus var. suffrutescens	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus tortuosus var. tortuosus	BRASSICACEAE	JEWELFLOWER	native	
Streptanthus vernalis	BRASSICACEAE		native	acceptance uncertain
Streptopus amplexifolius	LILIACEAE	TWISTED-STALK	native	
Streptopus amplexifolius var. americanus	LILIACEAE	TWISTED-STALK	native	
Stuckenia filiformis	POTAMOGETONACEAE		native	
Stuckenia filiformis subsp. alpina	POTAMOGETONACEAE		native	
Stuckenia pectinata	POTAMOGETONACEAE		native	
Stuckenia striata	POTAMOGETONACEAE		native	
Stylocline citroleum	ASTERACEAE	OIL NEST STRAW	native	
Stylocline gnaphaloides	ASTERACEAE	EVERLASTING NEST STRAW	native	
Stylocline intertexta	ASTERACEAE	NEST STRAW	native	
Stylocline masonii	ASTERACEAE	MASON NEST STRAW	native	
Stylocline micropoides	ASTERACEAE	DESERT NEST STRAW	native	
Stylocline psilocarphoides	ASTERACEAE	PECK NEST STRAW	native	
Stylocline sonorensis	ASTERACEAE	MESQUITE NEST STRAW	native	
Styrax redivivus	STYRACACEAE		native	
Suaeda calceoliformis	CHENOPODIACEAE	HORNED SEA-BLITE	native	
Suaeda californica	CHENOPODIACEAE	CALIFORNIA SEA-BLITE	native	
Suaeda esteroa	CHENOPODIACEAE	ESTUARY SEA-BLITE	native	
Suaeda nigra	CHENOPODIACEAE	BUSH SEEPWEED	native	
Suaeda taxifolia	CHENOPODIACEAE	WOOLLY SEA-BLITE	native	
Subularia aquatica	BRASSICACEAE	AWLWORT	native	
Subularia aquatica var. americana	BRASSICACEAE	AWLWORT	native	
Suksdorfia ranunculifolia	SAXIFRAGACEAE		native	
Swallenia alexandrae	POACEAE	EUREKA VALLEY DUNE GRASS	native	
Swertia albicaulis	GENTIANACEAE		native	
Swertia albicaulis var. albicaulis	GENTIANACEAE		native	
Swertia albicaulis var. modocensis	GENTIANACEAE		native	
Swertia albicaulis var. nitida	GENTIANACEAE		native	
Swertia albomarginata	GENTIANACEAE		native	
Swertia albomarginata var. albomarginata	GENTIANACEAE		native	
Swertia albomarginata var. induta	GENTIANACEAE		native	
Swertia neglecta	GENTIANACEAE	PINE GREEN-GENTIAN	native	
Swertia parryi	GENTIANACEAE		native	
Swertia perennis	GENTIANACEAE		native	
Swertia puberulenta	GENTIANACEAE		native	
Swertia radiata	GENTIANACEAE	MONUMENT PLANT	native	
Swertia radiata var. radiata	GENTIANACEAE		native	
Swertia shastaensis	GENTIANACEAE		native	
Swertia tubulosa	GENTIANACEAE		native	
Swertia umpquaensis	GENTIANACEAE		native	
Syagrus romanzoffiana	ARECACEAE		naturalized	acceptance uncertain
Symphoricarpos albus	CAPRIFOLIACEAE	SNOWBERRY; WAXBERRY	native	
Symphoricarpos albus var. laevigatus	CAPRIFOLIACEAE	SNOWBERRY	native	
Symphoricarpos longiflorus	CAPRIFOLIACEAE	FRAGRANT SNOWBERRY	native	
Symphoricarpos mollis	CAPRIFOLIACEAE	CREEPING SNOWBERRY; TRIP VINE	native	
Symphoricarpos rotundifolius	CAPRIFOLIACEAE	SNOWBERRY; WAXBERRY	native	
Symphoricarpos rotundifolius var. parishii	CAPRIFOLIACEAE	SNOWBERRY; WAXBERRY	native	
Symphoricarpos rotundifolius var. rotundifolius	CAPRIFOLIACEAE	SNOWBERRY; WAXBERRY	native	
Symphyotrichum ascendens	ASTERACEAE		native	
Symphyotrichum campestre	ASTERACEAE		native	
Symphyotrichum chilense	ASTERACEAE		native	
Symphyotrichum defoliatum	ASTERACEAE		native	
Symphyotrichum eatonii	ASTERACEAE		native	
Symphyotrichum foliaceum	ASTERACEAE		native	
Symphyotrichum foliaceum var. apricum	ASTERACEAE		native	
Symphyotrichum foliaceum var. parryi	ASTERACEAE		native	
Symphyotrichum frondosum	ASTERACEAE		native	
Symphyotrichum greatae	ASTERACEAE		native	
Symphyotrichum lanceolatum	ASTERACEAE		native	
Symphyotrichum lanceolatum var. hesperium	ASTERACEAE		native	
Symphyotrichum lentum	ASTERACEAE		native	
Symphyotrichum spathulatum	ASTERACEAE		native	
Symphyotrichum spathulatum var. intermedium	ASTERACEAE		native	
Symphyotrichum spathulatum var. spathulatum	ASTERACEAE		native	
Symphyotrichum spathulatum var. yosemitanum	ASTERACEAE		native	
Symphyotrichum subspicatum	ASTERACEAE		native	acceptance uncertain
Symphyotrichum subulatum	ASTERACEAE		native	
Symphyotrichum subulatum var. parviflorum	ASTERACEAE		native	
Symphytum asperum	BORAGINACEAE	COMFREY	naturalized	
Symphytum officinale	BORAGINACEAE	COMFREY	naturalized	
Synthyris cordata	PLANTAGINACEAE		native	
Synthyris missurica	PLANTAGINACEAE	KITTENTAILS	native	
Synthyris missurica subsp. missurica	PLANTAGINACEAE		native	
Synthyris reniformis	PLANTAGINACEAE	SNOW QUEEN	native	
Syntrichopappus fremontii	ASTERACEAE		native	
Syntrichopappus lemmonii	ASTERACEAE	LEMMON'S SYNTRICHOPAPPUS	native	
Systenotheca vortriedei	POLYGONACEAE	VORTRIEDE'S SPINEFLOWER	native	
Taeniatherum caput-medusae	POACEAE		naturalized	
Tagetes erecta	ASTERACEAE	AFRICAN MARIGOLD; FRENCH MARIGOLD	naturalized	
Tagetes minuta	ASTERACEAE	MARIGOLD	naturalized	
Tamarix aphylla	TAMARICACEAE	ATHEL	naturalized	
Tamarix chinensis	TAMARICACEAE	TAMARISK	naturalized	
Tamarix gallica	TAMARICACEAE	TAMARISK	naturalized	
Tamarix parviflora	TAMARICACEAE	TAMARISK	naturalized	
Tamarix ramosissima	TAMARICACEAE	TAMARISK	naturalized	
Tanacetum camphoratum	ASTERACEAE	DUNE TANSY	native	
Tanacetum parthenium	ASTERACEAE	FEVERFEW	naturalized	
Tanacetum vulgare	ASTERACEAE	TANSY	naturalized	
Taraxacum californicum	ASTERACEAE	CALIFORNIA DANDELION	native	
Taraxacum ceratophorum	ASTERACEAE		native	
Taraxacum officinale	ASTERACEAE		naturalized	
Tauschia arguta	APIACEAE		native	
Tauschia glauca	APIACEAE	GLAUCOUS TAUSCHIA	native	
Tauschia hartwegii	APIACEAE		native	
Tauschia howellii	APIACEAE	HOWELL'S TAUSCHIA	native	
Tauschia kelloggii	APIACEAE		native	
Tauschia parishii	APIACEAE		native	
Taxus brevifolia	TAXACEAE	PACIFIC YEW	native	
Taxus brevifolia var. brevifolia	TAXACEAE		native	acceptance uncertain
Taxus brevifolia var. polychaeta	TAXACEAE		native	acceptance uncertain
Taxus brevifolia var. reptaneta	TAXACEAE		native	acceptance uncertain
Teesdalia coronopifolia	BRASSICACEAE		naturalized	
Teesdalia nudicaulis	BRASSICACEAE		naturalized	acceptance uncertain
Tellima grandiflora	SAXIFRAGACEAE	FRINGE CUPS	native	
Tetracoccus dioicus	PICRODENDRACEAE	PARRY'S TETRACOCCUS	native	
Tetracoccus hallii	PICRODENDRACEAE		native	
Tetracoccus ilicifolius	PICRODENDRACEAE	HOLLY-LEAVED TETRACOCCUS	native	
Tetradymia argyraea	ASTERACEAE	STRIPED HORSEBRUSH	native	
Tetradymia axillaris	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia axillaris var. axillaris	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia axillaris var. longispina	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia canescens	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia comosa	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia glabrata	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia spinosa	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia stenolepis	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetradymia tetrameres	ASTERACEAE	COTTON-THORN; HORSEBRUSH	native	
Tetragonia tetragonioides	AIZOACEAE	NEW ZEALAND SPINACH	naturalized	
Tetraneuris acaulis	ASTERACEAE		native	
Tetraneuris acaulis var. arizonica	ASTERACEAE		native	
Teucrium cubense	LAMIACEAE		native	
Teucrium cubense subsp. depressum	LAMIACEAE		native	
Teucrium fruticans	LAMIACEAE		naturalized	acceptance uncertain
Teucrium glandulosum	LAMIACEAE		native	
Thalictrum alpinum	RANUNCULACEAE	MEADOW-RUE	native	
Thalictrum fendleri	RANUNCULACEAE	MEADOW-RUE	native	
Thalictrum occidentale	RANUNCULACEAE	MEADOW-RUE	native	
Thalictrum polycarpum	RANUNCULACEAE		native	acceptance uncertain
Thalictrum sparsiflorum	RANUNCULACEAE	MEADOW-RUE	native	
Thamnosma montana	RUTACEAE	TURPENTINE-BROOM	native	
Thelesperma megapotamicum	ASTERACEAE		naturalized	
Thelypodium brachycarpum	BRASSICACEAE	SHORT-PODDED THELYPODIUM	native	
Thelypodium crispum	BRASSICACEAE		native	
Thelypodium flexuosum	BRASSICACEAE		native	
Thelypodium howellii	BRASSICACEAE		native	
Thelypodium howellii subsp. howellii	BRASSICACEAE		native	
Thelypodium integrifolium	BRASSICACEAE		native	
Thelypodium integrifolium subsp. affine	BRASSICACEAE		native	
Thelypodium integrifolium subsp. complanatum	BRASSICACEAE		native	
Thelypodium laciniatum	BRASSICACEAE		native	
Thelypodium milleflorum	BRASSICACEAE		native	
Thelypodium stenopetalum	BRASSICACEAE	SLENDER-PETALED THELYPODIUM	native	
Thelypteris nevadensis	THELYPTERIDACEAE		native	
Thelypteris puberula	THELYPTERIDACEAE		native	
Thelypteris puberula var. sonorensis	THELYPTERIDACEAE	SONORAN MAIDEN FERN	native	
Thermopsis californica	FABACEAE		native	acceptance uncertain
Thermopsis californica var. argentata	FABACEAE		native	acceptance uncertain
Thermopsis californica var. californica	FABACEAE		native	acceptance uncertain
Thermopsis californica var. semota	FABACEAE		native	acceptance uncertain
Thermopsis gracilis	FABACEAE		native	acceptance uncertain
Thermopsis macrophylla	FABACEAE	FALSE-LUPINE; GOLDEN PEA	native	
Thermopsis robusta	FABACEAE		native	acceptance uncertain
Thlaspi arvense	BRASSICACEAE	FAN-WEED	naturalized	
Thuja plicata	CUPRESSACEAE	CANOE CEDAR; WESTERN RED CEDAR	native	
Thymophylla pentachaeta	ASTERACEAE		native	
Thymophylla pentachaeta var. belenidium	ASTERACEAE		native	
Thymophylla tenuiloba var. tenuiloba	ASTERACEAE		naturalized	
Thysanocarpus conchuliferus	BRASSICACEAE	SANTA CRUZ ISLAND FRINGEPOD	native	
Thysanocarpus curvipes	BRASSICACEAE	FRINGEPOD; LACEPOD	native	
Thysanocarpus laciniatus	BRASSICACEAE	FRINGEPOD; LACEPOD	native	
Thysanocarpus radians	BRASSICACEAE	FRINGEPOD; LACEPOD	native	
Tiarella trifoliata	SAXIFRAGACEAE	LACE FLOWER	native	
Tiarella trifoliata var. trifoliata	SAXIFRAGACEAE	FOAMFLOWER; SUGAR-SCOOP	native	
Tiarella trifoliata var. unifoliata	SAXIFRAGACEAE	FOAMFLOWER; SUGAR-SCOOP	native	
Tidestromia lanuginosa	AMARANTHACEAE		native	
Tidestromia lanuginosa subsp. eliassoniana	AMARANTHACEAE		native	acceptance uncertain
Tidestromia oblongifolia	AMARANTHACEAE		native	acceptance uncertain
Tiquilia canescens	BORAGINACEAE		native	
Tiquilia canescens var. canescens	BORAGINACEAE		native	
Tiquilia canescens var. pulchella	BORAGINACEAE		native	
Tiquilia nuttallii	BORAGINACEAE		native	
Tiquilia palmeri	BORAGINACEAE		native	
Tiquilia plicata	BORAGINACEAE		native	
Tolmiea menziesii	SAXIFRAGACEAE	PIG-A-BACK PLANT	native	
Tolpis barbata	ASTERACEAE		naturalized	
Tonella tenella	PLANTAGINACEAE		native	
Tonestus eximius	ASTERACEAE		native	
Tonestus lyallii	ASTERACEAE	LYALL'S HAPLOPAPPUS	native	
Tonestus peirsonii	ASTERACEAE		native	acceptance uncertain
Torilis arvensis	APIACEAE		naturalized	
Torilis nodosa	APIACEAE		naturalized	
Torreya californica	TAXACEAE	CALIFORNIA NUTMEG	native	
Torreyochloa erecta	POACEAE		native	
Torreyochloa pallida	POACEAE		native	
Torreyochloa pallida var. pauciflora	POACEAE	WEAK MANNAGRASS	native	
Townsendia condensata	ASTERACEAE		native	
Townsendia leptotes	ASTERACEAE		native	
Townsendia scapigera	ASTERACEAE		native	
Toxicodendron diversilobum	ANACARDIACEAE	WESTERN POISON OAK	native	
Toxicoscordion brevibracteatum	MELANTHIACEAE		native	
Toxicoscordion exaltatum	MELANTHIACEAE		native	
Toxicoscordion fontanum	MELANTHIACEAE		native	
Toxicoscordion fremontii	MELANTHIACEAE		native	
Toxicoscordion micranthum	MELANTHIACEAE		native	
Toxicoscordion paniculatum	MELANTHIACEAE		native	
Toxicoscordion venenosum	MELANTHIACEAE		native	
Toxicoscordion venenosum var. venenosum	MELANTHIACEAE		native	
Tracyina rostrata	ASTERACEAE	BEAKED TRACYINA	native	
Tradescantia fluminensis	COMMELINACEAE	SPIDERWORT	naturalized	
Tragia ramosa	EUPHORBIACEAE	NOSEBURN	native	
Tragopogon dubius	ASTERACEAE	GOAT'S BEARD	naturalized	
Tragopogon porrifolius	ASTERACEAE	OYSTER PLANT; SALSIFY	naturalized	
Tragopogon pratensis	ASTERACEAE	GOAT'S BEARD	naturalized	
Trautvetteria caroliniensis	RANUNCULACEAE		native	
Trautvetteria caroliniensis var. occidentalis	RANUNCULACEAE		native	
Triantha occidentalis	TOFIELDIACEAE		native	
Triantha occidentalis subsp. occidentalis	TOFIELDIACEAE		native	
Trianthema portulacastrum	AIZOACEAE	HORSE-PURSLANE	native	
Tribolium obliterum	POACEAE		naturalized	
Tribulus terrestris	ZYGOPHYLLACEAE	CALTROP; PUNCTURE VINE	naturalized	
Tricardia watsonii	BORAGINACEAE	THREE HEARTS	native	
Trichocoronis wrightii	ASTERACEAE		naturalized	
Trichocoronis wrightii var. wrightii	ASTERACEAE		naturalized	
Trichophorum clementis	CYPERACEAE		native	
Trichophorum pumilum	CYPERACEAE		native	
Trichoptilium incisum	ASTERACEAE		native	
Trichostema austromontanum	LAMIACEAE	BLUECURLS	native	
Trichostema austromontanum subsp. austromontanum	LAMIACEAE	BLUECURLS	native	
Trichostema austromontanum subsp. compactum	LAMIACEAE	HIDDEN LAKE BLUECURLS	native	
Trichostema lanatum	LAMIACEAE	WOOLLY BLUECURLS	native	
Trichostema lanceolatum	LAMIACEAE	VINEGAR WEED	native	
Trichostema laxum	LAMIACEAE	TURPENTINE WEED	native	
Trichostema micranthum	LAMIACEAE	SMALL-FLOWERED BLUECURLS	native	
Trichostema oblongum	LAMIACEAE	BLUECURLS	native	
Trichostema ovatum	LAMIACEAE	SAN JOAQUIN BLUECURLS	native	
Trichostema parishii	LAMIACEAE	BLUECURLS	native	
Trichostema rubisepalum	LAMIACEAE	HERNANDEZ BLUECURLS	native	
Trichostema ruygtii	LAMIACEAE		native	
Trichostema simulatum	LAMIACEAE	BLUECURLS	native	
Tridens muticus	POACEAE	SLIM TRIDENS	native	
Trientalis europaea	MYRSINACEAE		native	
Trientalis latifolia	MYRSINACEAE	STARFLOWER	native	
Trifolium albopurpureum	FABACEAE	CLOVER	native	
Trifolium albopurpureum var. albopurpureum	FABACEAE	CLOVER	native	
Trifolium albopurpureum var. dichotomum	FABACEAE	CLOVER	native	
Trifolium albopurpureum var. olivaceum	FABACEAE	CLOVER	native	
Trifolium amoenum	FABACEAE	SHOWY INDIAN CLOVER	native	
Trifolium andersonii	FABACEAE	CLOVER	native	
Trifolium andersonii var. andersonii	FABACEAE	CLOVER	native	
Trifolium andersonii var. beatleyae	FABACEAE	BEATLEY'S FIVE-LEAVED CLOVER	native	
Trifolium angustifolium	FABACEAE	CLOVER	naturalized	
Trifolium arvense	FABACEAE	RABBITFOOT CLOVER	naturalized	
Trifolium aureum	FABACEAE	HOP CLOVER	naturalized	
Trifolium barbigerum	FABACEAE	CLOVER	native	
Trifolium barbigerum var. andrewsii	FABACEAE	GRAY'S CLOVER	native	
Trifolium barbigerum var. barbigerum	FABACEAE	CLOVER	native	
Trifolium beckwithii	FABACEAE	CLOVER	native	
Trifolium bifidum	FABACEAE	CLOVER	native	
Trifolium bifidum var. bifidum	FABACEAE	CLOVER	native	
Trifolium bifidum var. decipiens	FABACEAE	CLOVER	native	
Trifolium bolanderi	FABACEAE	BOLANDER'S CLOVER	native	
Trifolium breweri	FABACEAE	CLOVER	native	
Trifolium buckwestiorum	FABACEAE	CLOVER	native	
Trifolium campestre	FABACEAE	HOP CLOVER	naturalized	
Trifolium cernuum	FABACEAE		naturalized	
Trifolium ciliolatum	FABACEAE	CLOVER	native	
Trifolium cyathiferum	FABACEAE	CLOVER	native	
Trifolium depauperatum	FABACEAE	CLOVER	native	
Trifolium depauperatum var. amplectens	FABACEAE	CLOVER	native	
Trifolium depauperatum var. depauperatum	FABACEAE	CLOVER	native	
Trifolium depauperatum var. hydrophilum	FABACEAE	CLOVER	native	
Trifolium depauperatum var. truncatum	FABACEAE	CLOVER	native	
Trifolium dubium	FABACEAE	LITTLE HOP CLOVER; SHAMROCK	naturalized	
Trifolium eriocephalum	FABACEAE	CLOVER	native	
Trifolium eriocephalum var. eriocephalum	FABACEAE	CLOVER	native	
Trifolium eriocephalum var. harneyense	FABACEAE		native	
Trifolium fragiferum	FABACEAE	STRAWBERRY CLOVER	naturalized	
Trifolium fucatum	FABACEAE	CLOVER	native	
Trifolium glomeratum	FABACEAE	CLOVER	naturalized	
Trifolium gracilentum	FABACEAE	CLOVER	native	
Trifolium gracilentum var. gracilentum	FABACEAE	CLOVER	native	
Trifolium gracilentum var. palmeri	FABACEAE	PALMER'S CLOVER	native	
Trifolium gymnocarpon	FABACEAE	CLOVER	native	
Trifolium gymnocarpon var. plummerae	FABACEAE	CLOVER	native	
Trifolium hirtum	FABACEAE	ROSE CLOVER	naturalized	
Trifolium howellii	FABACEAE	HOWELL'S CLOVER	native	
Trifolium hybridum	FABACEAE	ALSIKE CLOVER	naturalized	
Trifolium incarnatum	FABACEAE	CRIMSON CLOVER	naturalized	
Trifolium jokerstii	FABACEAE		native	
Trifolium kingii	FABACEAE	CLOVER	native	
Trifolium kingii var. productum	FABACEAE	CLOVER	native	
Trifolium lemmonii	FABACEAE	LEMMON'S CLOVER	native	
Trifolium longipes	FABACEAE	CLOVER	native	
Trifolium longipes var. elmeri	FABACEAE	CLOVER	native	
Trifolium longipes var. nevadense	FABACEAE	CLOVER	native	
Trifolium longipes var. oreganum	FABACEAE	CLOVER	native	
Trifolium longipes var. shastense	FABACEAE	CLOVER	native	
Trifolium macilentum	FABACEAE	CLOVER	native	
Trifolium macilentum var. dedeckerae	FABACEAE	DEDECKER'S CLOVER	native	
Trifolium macraei	FABACEAE	CLOVER	native	
Trifolium macrocephalum	FABACEAE	CLOVER	native	
Trifolium microcephalum	FABACEAE	CLOVER	native	
Trifolium microdon	FABACEAE	CLOVER	native	
Trifolium monanthum	FABACEAE	CLOVER	native	
Trifolium monanthum var. grantianum	FABACEAE	CLOVER	native	
Trifolium monanthum var. monanthum	FABACEAE	CLOVER	native	
Trifolium obtusiflorum	FABACEAE	CLOVER	native	
Trifolium oliganthum	FABACEAE	CLOVER	native	
Trifolium pratense	FABACEAE	RED CLOVER	naturalized	
Trifolium repens	FABACEAE	WHITE CLOVER	naturalized	
Trifolium resupinatum	FABACEAE		naturalized	acceptance uncertain
Trifolium retusum	FABACEAE		naturalized	
Trifolium striatum	FABACEAE		naturalized	
Trifolium subterraneum	FABACEAE	SUBTERRANEAN CLOVER	naturalized	
Trifolium tomentosum	FABACEAE		naturalized	
Trifolium tomentosum var. tomentosum	FABACEAE		naturalized	
Trifolium trichocalyx	FABACEAE	MONTEREY CLOVER	native	
Trifolium variegatum	FABACEAE	CLOVER	native	
Trifolium vesiculosum	FABACEAE		naturalized	
Trifolium willdenovii	FABACEAE	CLOVER	native	
Trifolium wormskioldii	FABACEAE	CLOVER	native	
Trifolium wormskioldii var. arizonicum	FABACEAE		native	acceptance uncertain
Trifolium wormskioldii var. siskiyouense	FABACEAE		native	
Triglochin maritima	JUNCAGINACEAE	SEASIDE ARROW-GRASS	native	
Triglochin palustris	JUNCAGINACEAE	MARSH ARROW-GRASS	native	
Triglochin striata	JUNCAGINACEAE	THREE-RIBBED ARROW-GRASS	native	
Trillium albidum	MELANTHIACEAE	TRILLIUM; WAKEROBIN	native	
Trillium angustipetalum	MELANTHIACEAE	TRILLIUM; WAKEROBIN	native	
Trillium chloropetalum	MELANTHIACEAE	GIANT TRILLIUM	native	
Trillium ovatum	MELANTHIACEAE	WESTERN TRILLIUM; WHITE TRILLIUM	native	
Trillium ovatum subsp. oettingeri	MELANTHIACEAE	SALMON MOUNTAINS WAKEROBIN	native	
Trillium ovatum subsp. ovatum	MELANTHIACEAE	TRILLIUM; WAKEROBIN	native	
Triodanis biflora	CAMPANULACEAE	VENUS LOOKING-GLASS	native	
Triodanis perfoliata	CAMPANULACEAE	VENUS LOOKING-GLASS	native	
Triphysaria eriantha	SCROPHULARIACEAE	BUTTER-AND-EGGS; JOHNNY-TUCK	native	
Triphysaria eriantha subsp. eriantha	SCROPHULARIACEAE		native	
Triphysaria eriantha subsp. rosea	SCROPHULARIACEAE		native	
Triphysaria floribunda	SCROPHULARIACEAE	SAN FRANCISCO OWL'S-CLOVER	native	
Triphysaria micrantha	SCROPHULARIACEAE		native	
Triphysaria pusilla	SCROPHULARIACEAE		native	
Triphysaria versicolor	SCROPHULARIACEAE		native	
Triphysaria versicolor subsp. faucibarbata	SCROPHULARIACEAE		native	
Triphysaria versicolor subsp. versicolor	SCROPHULARIACEAE		native	
Tripleurospermum inodorum	ASTERACEAE		naturalized	
Tripterocalyx crux-maltae	NYCTAGINACEAE		native	
Tripterocalyx micranthus	NYCTAGINACEAE		native	
Trisetum canescens	POACEAE		native	acceptance uncertain
Trisetum cernuum	POACEAE		native	
Trisetum flavescens	POACEAE		naturalized	
Trisetum spicatum	POACEAE		native	
Trisetum wolfii	POACEAE		native	acceptance uncertain
Triteleia bridgesii	THEMIDACEAE		native	
Triteleia clementina	THEMIDACEAE	SAN CLEMENTE ISLAND TRITELEIA	native	
Triteleia crocea	THEMIDACEAE		native	
Triteleia dudleyi	THEMIDACEAE		native	
Triteleia grandiflora	THEMIDACEAE		native	
Triteleia hendersonii	THEMIDACEAE		native	
Triteleia hyacinthina	THEMIDACEAE	WHITE BRODIAEA	native	
Triteleia ixioides	THEMIDACEAE		native	
Triteleia ixioides subsp. anilina	THEMIDACEAE	PRETTY FACE	native	
Triteleia ixioides subsp. cookii	THEMIDACEAE	COOK'S TRITELEIA	native	
Triteleia ixioides subsp. ixioides	THEMIDACEAE	GOLDEN BRODIAEA	native	
Triteleia ixioides subsp. scabra	THEMIDACEAE		native	
Triteleia ixioides subsp. unifolia	THEMIDACEAE		native	
Triteleia laxa	THEMIDACEAE	ITHURIEL'S SPEAR	native	
Triteleia lilacina	THEMIDACEAE		native	
Triteleia lugens	THEMIDACEAE		native	
Triteleia montana	THEMIDACEAE		native	
Triteleia peduncularis	THEMIDACEAE	LONG-RAYED BRODIAEA	native	
Trixis californica	ASTERACEAE		native	
Trixis californica var. californica	ASTERACEAE		native	
Tropaeolum majus	TROPAEOLACEAE	GARDEN NASTURTIUM	naturalized	
Tropidocarpum californicum	BRASSICACEAE		native	
Tropidocarpum capparideum	BRASSICACEAE	CAPER-FRUITED TROPIDOCARPUM	native	
Tropidocarpum gracile	BRASSICACEAE		native	
Tsuga heterophylla	PINACEAE	WESTERN HEMLOCK	native	
Tsuga mertensiana	PINACEAE	MOUNTAIN HEMLOCK	native	
Tuberaria guttata	CISTACEAE		naturalized	
Tuctoria greenei	POACEAE	GREENE'S TUCTORIA	native	
Tuctoria mucronata	POACEAE	CRAMPTON'S TUCTORIA	native	
Tulipa clusiana	LILIACEAE		naturalized	
Turricula parryi	BORAGINACEAE	POODLE-DOG BUSH	native	
Typha angustifolia	TYPHACEAE	NARROW-LEAVED CATTAIL	native	acceptance uncertain
Typha domingensis	TYPHACEAE	SOUTHERN CATTAIL	native	
Typha latifolia	TYPHACEAE	BROAD-LEAVED CATTAIL	native	
Ulex europaeus	FABACEAE	FURZE; GORSE	naturalized	
Ulmus americana	ULMACEAE		naturalized	acceptance uncertain
Ulmus minor	ULMACEAE	ENGLISH ELM; SMOOTH-LEAVED ELM	naturalized	acceptance uncertain
Ulmus parvifolia	ULMACEAE	CHINESE ELM	naturalized	
Ulmus pumila	ULMACEAE	SIBERIAN ELM	naturalized	
Umbellularia californica	LAURACEAE	CALIFORNIA BAY; CALIFORNIA LAUREL; PEPPERWOOD	native	
Urochloa arizonica	POACEAE		native	acceptance uncertain
Uropappus lindleyi	ASTERACEAE	SILVER PUFFS	native	
Urospermum picroides	ASTERACEAE		naturalized	
Urtica dioica	URTICACEAE	STINGING NETTLE	native	
Urtica dioica subsp. gracilis	URTICACEAE	AMERICAN STINGING NETTLE	native	
Urtica dioica subsp. holosericea	URTICACEAE	HOARY NETTLE	native	
Urtica urens	URTICACEAE	DWARF NETTLE	naturalized	
Utricularia gibba	LENTIBULARIACEAE	BLADDERWORT	native	
Utricularia intermedia	LENTIBULARIACEAE	BLADDERWORT	native	
Utricularia macrorhiza	LENTIBULARIACEAE		native	
Utricularia minor	LENTIBULARIACEAE	BLADDERWORT	native	
Utricularia ochroleuca	LENTIBULARIACEAE		native	
Utricularia subulata	LENTIBULARIACEAE		naturalized	
Vaccaria hispanica	CARYOPHYLLACEAE	COCKLE; COW-HERB	naturalized	
Vaccinium cespitosum	ERICACEAE		native	
Vaccinium deliciosum	ERICACEAE	CASCADE BILBERRY	native	
Vaccinium macrocarpon	ERICACEAE	CRANBERRY	naturalized	
Vaccinium membranaceum	ERICACEAE	THINLEAF HUCKLEBERRY	native	
Vaccinium ovatum	ERICACEAE	CALIFORNIA HUCKLEBERRY	native	
Vaccinium parvifolium	ERICACEAE	RED HUCKLEBERRY	native	
Vaccinium scoparium	ERICACEAE	LITTLELEAF HUCKLEBERRY	native	
Vaccinium uliginosum	ERICACEAE	BLUEBERRY; CRANBERRY; HUCKLEBERRY	native	
Vaccinium uliginosum subsp. occidentale	ERICACEAE	WESTERN BLUEBERRY	native	
Vachellia farnesiana	FABACEAE		native	
Vachellia farnesiana var. farnesiana	FABACEAE		native	
Vachellia farnesiana var. minuta	FABACEAE		native	
Valeriana californica	VALERIANACEAE	VALERIAN	native	
Valeriana hookeri	VALERIANACEAE		native	
Valeriana occidentalis	VALERIANACEAE	VALERIAN	native	
Valeriana pubicarpa	VALERIANACEAE	VALERIAN	native	
Valeriana sitchensis	VALERIANACEAE	VALERIAN	native	
Valerianella carinata	VALERIANACEAE		naturalized	acceptance uncertain
Valerianella locusta	VALERIANACEAE	CORN SALAD	naturalized	
Vancouveria chrysantha	BERBERIDACEAE	SISKIYOU INSIDE-OUT-FLOWER	native	
Vancouveria hexandra	BERBERIDACEAE		native	
Vancouveria planipetala	BERBERIDACEAE	REDWOOD IVY	native	
Velezia rigida	CARYOPHYLLACEAE		naturalized	
Venegasia carpesioides	ASTERACEAE	CANYON-SUNFLOWER	native	
Ventenata dubia	POACEAE		naturalized	
Veratrum californicum	MELANTHIACEAE	CORN LILY; FALSE HELLEBORE	native	
Veratrum californicum var. californicum	MELANTHIACEAE	CORN LILY; FALSE HELLEBORE	native	
Veratrum fimbriatum	MELANTHIACEAE	FRINGED FALSE HELLEBORE	native	
Veratrum insolitum	MELANTHIACEAE	SISKIYOU FALSE HELLEBORE	native	
Veratrum viride	MELANTHIACEAE	CORN LILY; FALSE HELLEBORE	native	
Veratrum viride var. eschscholzianum	MELANTHIACEAE		native	acceptance uncertain
Verbascum blattaria	SCROPHULARIACEAE	MOTH MULLEIN	naturalized	
Verbascum olympicum	SCROPHULARIACEAE		naturalized	
Verbascum speciosum	SCROPHULARIACEAE	SHOWY MULLEIN	naturalized	
Verbascum thapsus	SCROPHULARIACEAE	WOOLLY MULLEIN	naturalized	
Verbascum virgatum	SCROPHULARIACEAE	WAND MULLEIN	naturalized	
Verbena bonariensis	VERBENACEAE		naturalized	
Verbena bracteata	VERBENACEAE		native	
Verbena californica	VERBENACEAE	CALIFORNIA VERVAIN	native	
Verbena gooddingii	VERBENACEAE		native	
Verbena hastata	VERBENACEAE		native	
Verbena lasiostachys	VERBENACEAE		native	
Verbena lasiostachys var. lasiostachys	VERBENACEAE		native	
Verbena lasiostachys var. scabrida	VERBENACEAE		native	
Verbena litoralis	VERBENACEAE		naturalized	
Verbena menthifolia	VERBENACEAE		native	
Verbena pulchella	VERBENACEAE		naturalized	acceptance uncertain
Verbena scabra	VERBENACEAE		native	
Verbesina dissita	ASTERACEAE	CROWNBEARD	native	
Verbesina encelioides	ASTERACEAE	CROWNBEARD	naturalized	
Verbesina encelioides subsp. exauriculata	ASTERACEAE	GOLDEN CROWNBEARD	naturalized	
Veronica americana	PLANTAGINACEAE	AMERICAN BROOKLIME	native	
Veronica anagallis-aquatica	PLANTAGINACEAE	WATER SPEEDWELL	naturalized	
Veronica arvensis	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	naturalized	
Veronica beccabunga	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	naturalized	
Veronica catenata	PLANTAGINACEAE	CHAIN SPEEDWELL	naturalized	
Veronica chamaedrys	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	naturalized	
Veronica copelandii	PLANTAGINACEAE	COPELAND'S SPEEDWELL	native	
Veronica cusickii	PLANTAGINACEAE	CUSICK'S SPEEDWELL	native	
Veronica filiformis	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	naturalized	
Veronica hederifolia	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	naturalized	
Veronica peregrina	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	native	
Veronica peregrina subsp. xalapensis	PLANTAGINACEAE	PURSLANE SPEEDWELL	native	
Veronica persica	PLANTAGINACEAE	PERSIAN SPEEDWELL	naturalized	
Veronica scutellata	PLANTAGINACEAE	MARSH SPEEDWELL	native	
Veronica serpyllifolia	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	native	
Veronica serpyllifolia subsp. humifusa	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	native	
Veronica triphyllos	PLANTAGINACEAE	BROOKLIME; SPEEDWELL	naturalized	
Veronica wormskjoldii	PLANTAGINACEAE	AMERICAN ALPINE SPEEDWELL	native	
Viburnum edule	ADOXACEAE		native	
Viburnum ellipticum	ADOXACEAE		native	
Vicia americana	FABACEAE	VETCH	native	
Vicia americana var. americana	FABACEAE	AMERICAN VETCH	native	
Vicia benghalensis	FABACEAE	PURPLE VETCH	naturalized	
Vicia bithynica	FABACEAE		naturalized	acceptance uncertain
Vicia cracca	FABACEAE	VETCH	naturalized	acceptance uncertain
Vicia disperma	FABACEAE	VETCH	naturalized	
Vicia faba	FABACEAE	BROAD BEAN; HORSE BEAN	naturalized	
Vicia gigantea	FABACEAE	VETCH	native	
Vicia hassei	FABACEAE	VETCH	native	
Vicia hirsuta	FABACEAE	VETCH	naturalized	
Vicia lathyroides	FABACEAE	VETCH	naturalized	
Vicia ludoviciana	FABACEAE	VETCH	native	
Vicia ludoviciana var. ludoviciana	FABACEAE	VETCH	native	
Vicia lutea	FABACEAE	VETCH	naturalized	
Vicia pannonica	FABACEAE	HUNGARIAN VETCH	naturalized	
Vicia sativa	FABACEAE	VETCH	naturalized	
Vicia sativa subsp. nigra	FABACEAE	COMMON VETCH; NARROW-LEAVED VETCH	naturalized	
Vicia sativa subsp. sativa	FABACEAE	COMMON VETCH; SPRING VETCH	naturalized	
Vicia tetrasperma	FABACEAE	VETCH	naturalized	
Vicia villosa	FABACEAE	HAIRY VETCH; WINTER VETCH	naturalized	
Vicia villosa subsp. varia	FABACEAE	VETCH	naturalized	
Vicia villosa subsp. villosa	FABACEAE	VETCH	naturalized	
Viguiera purisimae	ASTERACEAE		native	acceptance uncertain
Vinca major	APOCYNACEAE	GREATER PERIWINKLE	naturalized	
Viola adunca	VIOLACEAE	WESTERN DOG VIOLET	native	
Viola adunca subsp. adunca	VIOLACEAE		native	
Viola arvensis	VIOLACEAE	VIOLET	naturalized	
Viola bakeri	VIOLACEAE	VIOLET	native	
Viola beckwithii	VIOLACEAE	GREAT BASIN VIOLET	native	
Viola cuneata	VIOLACEAE	VIOLET	native	
Viola douglasii	VIOLACEAE	DOUGLAS VIOLET	native	
Viola glabella	VIOLACEAE	STREAM VIOLET	native	
Viola hallii	VIOLACEAE	VIOLET	native	
Viola langsdorffii	VIOLACEAE		native	
Viola lobata	VIOLACEAE	PINE VIOLET	native	
Viola lobata subsp. integrifolia	VIOLACEAE	VIOLET	native	
Viola lobata subsp. lobata	VIOLACEAE	VIOLET	native	
Viola macloskeyi	VIOLACEAE	VIOLET	native	
Viola ocellata	VIOLACEAE	WESTERN HEART'S EASE	native	
Viola odorata	VIOLACEAE	ENGLISH VIOLET	naturalized	
Viola palustris	VIOLACEAE	MARSH VIOLET	native	
Viola pedunculata	VIOLACEAE	JOHNNY-JUMP-UP	native	
Viola pinetorum	VIOLACEAE	VIOLET	native	
Viola pinetorum subsp. grisea	VIOLACEAE	VIOLET	native	
Viola pinetorum subsp. pinetorum	VIOLACEAE	VIOLET	native	
Viola praemorsa	VIOLACEAE	ASTORIA VIOLET	native	
Viola praemorsa subsp. linguifolia	VIOLACEAE	VIOLET	native	
Viola praemorsa subsp. praemorsa	VIOLACEAE	VIOLET	native	
Viola primulifolia	VIOLACEAE	VIOLET	native	
Viola primulifolia subsp. occidentalis	VIOLACEAE	WESTERN BOG VIOLET	native	
Viola purpurea	VIOLACEAE	VIOLET	native	
Viola purpurea subsp. aurea	VIOLACEAE		native	
Viola purpurea subsp. integrifolia	VIOLACEAE	VIOLET	native	
Viola purpurea subsp. mohavensis	VIOLACEAE	VIOLET	native	
Viola purpurea subsp. purpurea	VIOLACEAE	MOUNTAIN VIOLET	native	
Viola purpurea subsp. quercetorum	VIOLACEAE	VIOLET	native	
Viola purpurea subsp. venosa	VIOLACEAE	VIOLET	native	
Viola sempervirens	VIOLACEAE	EVERGREEN VIOLET	native	
Viola sheltonii	VIOLACEAE	VIOLET	native	
Viola sororia	VIOLACEAE	VIOLET	native	
Viola sororia subsp. affinis	VIOLACEAE	LECONTE VIOLET	native	
Viola tomentosa	VIOLACEAE	WOOLLY VIOLET	native	
Viscum album	VISCACEAE	EUROPEAN MISTLETOE	naturalized	
Vitex agnus-castus	VERBENACEAE		naturalized	acceptance uncertain
Vitex agnus-castus var. agnus-castus	VERBENACEAE		naturalized	acceptance uncertain
Vitis californica	VITACEAE	CALIFORNIA WILD GRAPE	native	
Vitis girdiana	VITACEAE	DESERT WILD GRAPE	native	
Vitis vinifera	VITACEAE	CULTIVATED GRAPE; WINE GRAPE	naturalized	
Volutaria muricata	ASTERACEAE		naturalized	
Vulpia bromoides	POACEAE		naturalized	
Vulpia microstachys	POACEAE		native	
Vulpia microstachys var. ciliata	POACEAE		native	
Vulpia microstachys var. confusa	POACEAE		native	
Vulpia microstachys var. microstachys	POACEAE		native	
Vulpia microstachys var. pauciflora	POACEAE		native	
Vulpia myuros	POACEAE		naturalized	
Vulpia myuros var. hirsuta	POACEAE		naturalized	
Vulpia myuros var. myuros	POACEAE		naturalized	
Vulpia octoflora	POACEAE		native	
Vulpia octoflora var. hirtella	POACEAE		native	
Vulpia octoflora var. octoflora	POACEAE		native	
Washingtonia filifera	ARECACEAE	CALIFORNIA FAN PALM	native	
Washingtonia robusta	ARECACEAE		naturalized	acceptance uncertain
Watsonia meriana	IRIDACEAE		naturalized	
Whipplea modesta	PHILADELPHACEAE	MODESTY; YERBA DE SELVA	native	
Wigandia caracasana	BORAGINACEAE		naturalized	acceptance uncertain
Wislizenia refracta	BRASSICACEAE	JACKASS CLOVER	native	
Wislizenia refracta subsp. californica	BRASSICACEAE		native	
Wislizenia refracta subsp. palmeri	BRASSICACEAE		native	
Wislizenia refracta subsp. refracta	BRASSICACEAE	JACKASS CLOVER	native	
Wolffia arrhiza	ARACEAE	WATER-MEAL	naturalized	
Wolffia borealis	ARACEAE	WATER-MEAL	native	
Wolffia brasiliensis	ARACEAE	WATER-MEAL	native	
Wolffia columbiana	ARACEAE	WATER-MEAL	native	
Wolffia globosa	ARACEAE	WATER-MEAL	native	
Wolffiella lingulata	ARACEAE	MUD-MIDGET	native	
Wolffiella oblonga	ARACEAE	MUD-MIDGET	native	
Woodsia oregana	WOODSIACEAE	CLIFF FERN	native	
Woodsia plummerae	WOODSIACEAE	PLUMMER'S WOODSIA	native	
Woodsia scopulina	WOODSIACEAE	CLIFF FERN	native	
Woodwardia fimbriata	BLECHNACEAE	GIANT CHAIN FERN	native	
Wyethia angustifolia	ASTERACEAE	MULES EARS	native	
Wyethia bolanderi	ASTERACEAE	MULES EARS	native	
Wyethia elata	ASTERACEAE	HALL'S WYETHIA	native	
Wyethia glabra	ASTERACEAE	MULES EARS	native	
Wyethia helenioides	ASTERACEAE	MULES EARS	native	
Wyethia invenusta	ASTERACEAE	MULES EARS	native	
Wyethia longicaulis	ASTERACEAE	HUMBOLDT COUNTY WYETHIA	native	
Wyethia mollis	ASTERACEAE	MULES EARS	native	
Wyethia ovata	ASTERACEAE	MULES EARS	native	
Wyethia reticulata	ASTERACEAE	EL DORADO COUNTY MULE EARS	native	
Xanthisma gracile	ASTERACEAE		native	
Xanthisma junceum	ASTERACEAE		native	
Xanthisma spinulosum	ASTERACEAE		native	
Xanthisma spinulosum var. gooddingii	ASTERACEAE		native	
Xanthium spinosum	ASTERACEAE	SPINY COCKLEBUR	native	
Xanthium strumarium	ASTERACEAE	COCKLEBUR	native	
Xerophyllum tenax	MELANTHIACEAE	BEAR-GRASS; INDIAN BASKET-GRASS	native	
Xylococcus bicolor	ERICACEAE		native	
Xylorhiza cognata	ASTERACEAE	MECCA-ASTER	native	
Xylorhiza orcuttii	ASTERACEAE	ORCUTT'S WOODY-ASTER	native	
Xylorhiza tortifolia	ASTERACEAE	DESERT-ASTER	native	
Xylorhiza tortifolia var. tortifolia	ASTERACEAE	MOJAVE-ASTER	native	
Yabea microcarpa	APIACEAE		native	
Yucca baccata	AGAVACEAE	SPANISH BAYONET	native	
Yucca brevifolia	AGAVACEAE	JOSHUA TREE	native	
Yucca schidigera	AGAVACEAE	MOHAVE YUCCA	native	
Yucca whipplei	AGAVACEAE	OUR LORD'S CANDLE	native	
Zannichellia palustris	ZANNICHELLIACEAE	HORNED-PONDWEED	native	
Zantedeschia aethiopica	ARACEAE	CALLA LILY	naturalized	
Zeltnera davyi	GENTIANACEAE		native	
Zeltnera exaltata	GENTIANACEAE		native	
Zeltnera muehlenbergii	GENTIANACEAE		native	
Zeltnera namophila	GENTIANACEAE		native	
Zeltnera trichantha	GENTIANACEAE		native	
Zeltnera venusta	GENTIANACEAE		native	
Zizania palustris var. interior	POACEAE	WILD RICE	naturalized	
Ziziphus obtusifolia	RHAMNACEAE		native	
Ziziphus obtusifolia var. canescens	RHAMNACEAE	GRAYTHORN	native	
Ziziphus parryi	RHAMNACEAE		native	
Zostera asiatica	ZOSTERACEAE		naturalized	acceptance uncertain
Zostera japonica	ZOSTERACEAE		naturalized	acceptance uncertain
Zostera pacifica	ZOSTERACEAE	EEL-GRASS	native	
Zoysia pacifica	POACEAE		naturalized	acceptance uncertain
Zygophyllum fabago	ZYGOPHYLLACEAE	BEAN-CAPER	naturalized