This is a tab-delimited list of names of native and naturalised taxa that are currently
(Sat Dec 22 20:34:22 2012) 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		native	
Abies lasiocarpa var. lasiocarpa	PINACEAE	SUBALPINE FIR	native	
Abies magnifica	PINACEAE	CALIFORNIA RED FIR	native	
Abies magnifica var. critchfieldii	PINACEAE		native	acceptance uncertain
Abies magnifica var. magnifica	PINACEAE		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		native	
Abronia maritima	NYCTAGINACEAE	RED SAND-VERBENA	native	
Abronia nana	NYCTAGINACEAE		native	
Abronia nana var. covillei	NYCTAGINACEAE	COVILLE'S DWARF ABRONIA	native	
Abronia pogonantha	NYCTAGINACEAE		native	
Abronia turbinata	NYCTAGINACEAE		native	
Abronia umbellata	NYCTAGINACEAE		native	
Abronia umbellata var. breviflora	NYCTAGINACEAE	PINK SAND-VERBENA	native	
Abronia umbellata var. umbellata	NYCTAGINACEAE		native	
Abronia villosa	NYCTAGINACEAE		native	
Abronia villosa var. aurita	NYCTAGINACEAE	CHAPARRAL SAND-VERBENA	native	
Abronia villosa var. villosa	NYCTAGINACEAE		native	
Abutilon palmeri	MALVACEAE		native	
Abutilon parvulum	MALVACEAE	DWARF ABUTILON	native	
Abutilon theophrasti	MALVACEAE	VELVET-LEAF	naturalized	
Acacia baileyana	FABACEAE	COOTAMUNDRA WATTLE	naturalized	
Acacia cyclops	FABACEAE	WESTERN COASTAL WATTLE	naturalized	
Acacia dealbata	FABACEAE	SILVER WATTLE	naturalized	
Acacia farnesiana var. minuta	FABACEAE		naturalized	
Acacia longifolia	FABACEAE	SYDNEY GOLDEN WATTLE	naturalized	
Acacia melanoxylon	FABACEAE	BLACKWOOD ACACIA	naturalized	
Acacia redolens	FABACEAE	VANILLA-SCENTED WATTLE	naturalized	
Acacia saligna	FABACEAE	GOLDEN WREATH WATTLE	naturalized	
Acaena novae-zelandiae	ROSACEAE	BIDDY-BIDDY	naturalized	
Acaena pallida	ROSACEAE		naturalized	
Acaena pinnatifida	ROSACEAE		native	
Acaena pinnatifida var. californica	ROSACEAE		native	
Acalypha californica	EUPHORBIACEAE		native	
Acamptopappus shockleyi	ASTERACEAE	SHOCKLEY'S GOLDENHEAD	native	
Acamptopappus sphaerocephalus	ASTERACEAE	RAYLESS GOLDENHEAD	native	
Acamptopappus sphaerocephalus var. hirtellus	ASTERACEAE		native	
Acamptopappus sphaerocephalus var. sphaerocephalus	ASTERACEAE		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		native	
Acanthomintha obovata subsp. cordata	LAMIACEAE	HEART-LEAVED THORNMINT	native	
Acanthomintha obovata subsp. obovata	LAMIACEAE	SAN BENITO THORNMINT	native	
Acanthoscyphus parishii	POLYGONACEAE	FLOWERY PUNCTUREBRACT	native	
Acanthoscyphus parishii var. abramsii	POLYGONACEAE	ABRAMS' OXYTHECA	native	
Acanthoscyphus parishii var. cienegensis	POLYGONACEAE	CIENEGA SECA OXYTHECA	native	
Acanthoscyphus parishii var. goodmaniana	POLYGONACEAE	CUSHENBURY OXYTHECA	native	
Acanthoscyphus parishii var. parishii	POLYGONACEAE	PARISH'S OXYTHECA	native	
Acer circinatum	SAPINDACEAE	VINE MAPLE	native	
Acer glabrum	SAPINDACEAE	MOUNTAIN MAPLE	native	
Acer glabrum var. diffusum	SAPINDACEAE		native	
Acer glabrum var. glabrum	SAPINDACEAE		native	
Acer macrophyllum	SAPINDACEAE	BIG-LEAF MAPLE	native	
Acer negundo	SAPINDACEAE	BOX ELDER	native	
Acer saccharinum	SAPINDACEAE	SILVER MAPLE	naturalized	
Achillea millefolium	ASTERACEAE		native	
Achlys californica	BERBERIDACEAE		native	
Achlys triphylla	BERBERIDACEAE		native	
Achlys triphylla subsp. triphylla	BERBERIDACEAE		native	
Achyrachaena mollis	ASTERACEAE		native	
Achyronychia cooperi	CARYOPHYLLACEAE	FROST-MAT	native	
Acleisanthes longiflora	NYCTAGINACEAE	ANGEL TRUMPETS	native	
Acleisanthes nevadensis	NYCTAGINACEAE	DESERT WING-FRUIT	native	
Acmispon americanus	FABACEAE		native	
Acmispon americanus var. americanus	FABACEAE		native	
Acmispon argophyllus	FABACEAE		native	
Acmispon argophyllus var. adsurgens	FABACEAE	SAN CLEMENTE ISLAND BIRD'S-FOOT TREFOIL	native	
Acmispon argophyllus var. argenteus	FABACEAE		native	
Acmispon argophyllus var. argophyllus	FABACEAE		native	
Acmispon argophyllus var. fremontii	FABACEAE		native	
Acmispon argophyllus var. niveus	FABACEAE	SANTA CRUZ ISLAND BIRD'S-FOOT TREFOIL	native	
Acmispon argyraeus	FABACEAE		native	
Acmispon argyraeus var. argyraeus	FABACEAE		native	
Acmispon argyraeus var. multicaulis	FABACEAE	SCRUB LOTUS	native	
Acmispon argyraeus var. notitius	FABACEAE	PROVIDENCE MOUNTAINS LOTUS	native	
Acmispon brachycarpus	FABACEAE		native	
Acmispon cytisoides	FABACEAE		native	
Acmispon dendroideus	FABACEAE		native	
Acmispon dendroideus var. dendroideus	FABACEAE	ISLAND BROOM	native	
Acmispon dendroideus var. traskiae	FABACEAE	SAN CLEMENTE ISLAND LOTUS	native	
Acmispon dendroideus var. veatchii	FABACEAE	SAN MIGUEL ISLAND DEERWEED	native	
Acmispon denticulatus	FABACEAE		native	
Acmispon glaber	FABACEAE	CALIFORNIA BROOM	native	
Acmispon glaber var. brevialatus	FABACEAE		native	
Acmispon glaber var. glaber	FABACEAE		native	
Acmispon grandiflorus	FABACEAE		native	
Acmispon grandiflorus var. grandiflorus	FABACEAE		native	
Acmispon grandiflorus var. macranthus	FABACEAE		native	
Acmispon haydonii	FABACEAE	PYGMY LOTUS	native	
Acmispon heermannii	FABACEAE		native	
Acmispon heermannii var. heermannii	FABACEAE		native	
Acmispon heermannii var. orbicularis	FABACEAE		native	
Acmispon junceus	FABACEAE		native	
Acmispon junceus var. biolettii	FABACEAE		native	
Acmispon junceus var. junceus	FABACEAE		native	
Acmispon maritimus	FABACEAE		native	
Acmispon maritimus var. brevivexillus	FABACEAE		native	
Acmispon maritimus var. maritimus	FABACEAE		native	
Acmispon micranthus	FABACEAE		native	
Acmispon nevadensis	FABACEAE		native	
Acmispon nevadensis var. davidsonii	FABACEAE		native	
Acmispon nevadensis var. nevadensis	FABACEAE		native	
Acmispon parviflorus	FABACEAE		native	
Acmispon procumbens	FABACEAE		native	
Acmispon procumbens var. jepsonii	FABACEAE		native	
Acmispon procumbens var. procumbens	FABACEAE		native	
Acmispon prostratus	FABACEAE	NUTTALL'S ACMISPON	native	
Acmispon rigidus	FABACEAE		native	
Acmispon rubriflorus	FABACEAE	RED-FLOWERED BIRD'S-FOOT TREFOIL	native	
Acmispon strigosus	FABACEAE		native	
Acmispon wrangelianus	FABACEAE		native	
Aconitum columbianum	RANUNCULACEAE		native	
Aconitum columbianum subsp. columbianum	RANUNCULACEAE		native	
Aconitum columbianum subsp. viviparum	RANUNCULACEAE		native	
Aconogonon davisiae	POLYGONACEAE		native	
Aconogonon newberryi	POLYGONACEAE		native	
Aconogonon phytolaccifolium	POLYGONACEAE		native	
Acourtia microcephala	ASTERACEAE		native	
Acroptilon repens	ASTERACEAE	RUSSIAN KNAPWEED	naturalized	
Actaea rubra	RANUNCULACEAE		native	
Adenocaulon bicolor	ASTERACEAE	TRAIL PLANT	native	
Adenophyllum cooperi	ASTERACEAE		native	
Adenophyllum porophylloides	ASTERACEAE		native	
Adenostoma fasciculatum	ROSACEAE	GREASEWOOD	native	
Adenostoma fasciculatum var. fasciculatum	ROSACEAE		native	
Adenostoma fasciculatum var. obtusifolium	ROSACEAE		native	
Adenostoma fasciculatum var. prostratum	ROSACEAE		native	
Adenostoma sparsifolium	ROSACEAE	RIBBON WOOD	native	
Adiantum aleuticum	PTERIDACEAE	FIVE-FINGER FERN	native	
Adiantum capillus-veneris	PTERIDACEAE	SOUTHERN MAIDENHAIR	native	
Adiantum jordanii	PTERIDACEAE	CALIFORNIA MAIDENHAIR	native	
Adolphia californica	RHAMNACEAE	CALIFORNIA ADOLPHIA	native	
Adonis aestivalis	RANUNCULACEAE	SUMMER PHEASANT'S EYE	naturalized	
Aegilops cylindrica	POACEAE	JOINTED GOAT GRASS	naturalized	
Aegilops neglecta	POACEAE	THREE-AWNED GOAT GRASS	naturalized	
Aegilops triuncialis	POACEAE	BARBED GOAT GRASS	naturalized	
Aeonium arboreum	CRASSULACEAE		naturalized	
Aeonium arboreum var. arboreum	CRASSULACEAE		naturalized	
Aeonium haworthii	CRASSULACEAE		naturalized	
Aesculus californica	SAPINDACEAE	CALIFORNIA BUCKEYE	native	
Agastache parvifolia	LAMIACEAE		native	
Agastache urticifolia	LAMIACEAE		native	
Agave deserti	AGAVACEAE		native	
Agave deserti var. deserti	AGAVACEAE	DESERT AGAVE	native	
Agave deserti var. simplex	AGAVACEAE	SIMPLE DESERT AGAVE	native	
Agave shawii	AGAVACEAE		native	
Agave shawii var. shawii	AGAVACEAE	SHAW AGAVE	native	
Agave utahensis	AGAVACEAE	UTAH AGAVE	native	
Agave utahensis var. eborispina	AGAVACEAE	IVORY-SPINED AGAVE	native	
Agave utahensis var. nevadensis	AGAVACEAE	CLARK MOUNTAIN AGAVE	native	
Ageratina adenophora	ASTERACEAE	CROFTON WEED	naturalized	
Ageratina herbacea	ASTERACEAE	DESERT AGERATINA	native	
Ageratina occidentalis	ASTERACEAE	WESTERN SNAKEROOT	native	
Ageratina shastensis	ASTERACEAE	SHASTA AGERATINA	native	
Agoseris apargioides	ASTERACEAE		native	
Agoseris apargioides var. apargioides	ASTERACEAE		native	
Agoseris apargioides var. eastwoodiae	ASTERACEAE		native	
Agoseris apargioides var. maritima	ASTERACEAE		native	
Agoseris aurantiaca	ASTERACEAE		native	
Agoseris aurantiaca var. aurantiaca	ASTERACEAE		native	
Agoseris glauca	ASTERACEAE		native	
Agoseris glauca var. glauca	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 monticola	ASTERACEAE		native	
Agoseris parviflora	ASTERACEAE		native	
Agoseris retrorsa	ASTERACEAE		native	
Agrimonia gryposepala	ROSACEAE	COMMON AGRIMONY	native	
Agrimonia striata	ROSACEAE	GROOVED AGRIMONY	native	
Agropyron cristatum	POACEAE		naturalized	
Agropyron cristatum subsp. pectinatum	POACEAE		naturalized	
Agrostemma githago	CARYOPHYLLACEAE		naturalized	
Agrostemma githago var. githago	CARYOPHYLLACEAE		naturalized	
Agrostis avenacea	POACEAE	PACIFIC BENT GRASS	naturalized	
Agrostis blasdalei	POACEAE	BLASDALE'S BENT GRASS	native	
Agrostis capillaris	POACEAE	COLONIAL BENT	naturalized	
Agrostis densiflora	POACEAE	CALIFORNIA BENT GRASS	native	
Agrostis elliottiana	POACEAE	SIERRA BENT GRASS	native	
Agrostis exarata	POACEAE	SPIKE BENT GRASS	native	
Agrostis gigantea	POACEAE	REDTOP	naturalized	
Agrostis hallii	POACEAE	HALL'S BENT GRASS	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	IDAHO REDTOP	native	
Agrostis microphylla	POACEAE	SMALL-LEAF BENT GRASS	native	
Agrostis oregonensis	POACEAE	OREGON REDTOP	native	
Agrostis pallens	POACEAE	DUNE BENT GRASS	native	
Agrostis scabra	POACEAE	ROUGH BENT GRASS	native	
Agrostis stolonifera	POACEAE	CREEPING BENT	naturalized	
Agrostis tandilensis	POACEAE	KENNEDY'S BENT GRASS	naturalized	
Agrostis variabilis	POACEAE	MOUNTAIN BENT GRASS	native	
Ailanthus altissima	SIMAROUBACEAE	TREE OF HEAVEN	naturalized	
Aira caryophyllea	POACEAE	SILVER HAIR GRASS	naturalized	
Aira elegans	POACEAE	ELEGANT HAIR GRASS	naturalized	
Aira praecox	POACEAE	EARLY HAIR GRASS	naturalized	
Albizia julibrissin	FABACEAE	MIMOSA	naturalized	
Albizia lophantha	FABACEAE	PLUME ACACIA	naturalized	
Alcea rosea	MALVACEAE	HOLLYHOCK	naturalized	
Alhagi maurorum	FABACEAE	CAMEL THORN	naturalized	
Aliciella humillima	POLEMONIACEAE	SMALLEST ALICIELLA	native	
Aliciella hutchinsifolia	POLEMONIACEAE	DESERT PALE ALICIELLA	native	
Aliciella latifolia	POLEMONIACEAE		native	
Aliciella latifolia subsp. latifolia	POLEMONIACEAE	BROAD-LEAVED ALICIELLA	native	
Aliciella leptomeria	POLEMONIACEAE	SAND ALICIELLA	native	
Aliciella lottiae	POLEMONIACEAE	LOTT'S ALICIELLA	native	
Aliciella micromeria	POLEMONIACEAE	DAINTY ALICIELLA	native	
Aliciella monoensis	POLEMONIACEAE	MONO LAKE ALICIELLA	native	
Aliciella ripleyi	POLEMONIACEAE	RIPLEY'S ALICIELLA	native	
Aliciella triodon	POLEMONIACEAE	COYOTE GILIA	native	
Alisma gramineum	ALISMATACEAE	GRASS ALISMA	native	
Alisma lanceolatum	ALISMATACEAE		naturalized	
Alisma triviale	ALISMATACEAE		native	
Allenrolfea occidentalis	CHENOPODIACEAE		native	
Allionia incarnata	NYCTAGINACEAE		native	
Allionia incarnata var. incarnata	NYCTAGINACEAE		native	
Allionia incarnata var. villosa	NYCTAGINACEAE		native	
Allium abramsii	ALLIACEAE		native	
Allium acuminatum	ALLIACEAE		native	
Allium amplectens	ALLIACEAE		native	
Allium anceps	ALLIACEAE		native	
Allium atrorubens	ALLIACEAE		native	
Allium atrorubens var. atrorubens	ALLIACEAE	GREAT BASIN ONION	native	
Allium atrorubens var. cristatum	ALLIACEAE	INYO ONION	native	
Allium bisceptrum	ALLIACEAE		native	
Allium bolanderi	ALLIACEAE		native	
Allium bolanderi var. bolanderi	ALLIACEAE		native	
Allium bolanderi var. mirabile	ALLIACEAE		native	
Allium burlewii	ALLIACEAE		native	
Allium campanulatum	ALLIACEAE		native	
Allium cratericola	ALLIACEAE		native	
Allium crispum	ALLIACEAE		native	
Allium denticulatum	ALLIACEAE		native	
Allium diabolense	ALLIACEAE		native	
Allium dichlamydeum	ALLIACEAE		native	
Allium falcifolium	ALLIACEAE		native	
Allium fimbriatum	ALLIACEAE		native	
Allium fimbriatum var. fimbriatum	ALLIACEAE		native	
Allium fimbriatum var. mohavense	ALLIACEAE		native	
Allium fimbriatum var. purdyi	ALLIACEAE	PURDY'S ONION	native	
Allium haematochiton	ALLIACEAE		native	
Allium hickmanii	ALLIACEAE	HICKMAN'S ONION	native	
Allium hoffmanii	ALLIACEAE	BEEGUM ONION	native	
Allium howellii	ALLIACEAE		native	
Allium howellii var. clokeyi	ALLIACEAE	MOUNT PINOS ONION	native	
Allium howellii var. howellii	ALLIACEAE		native	
Allium howellii var. sanbenitense	ALLIACEAE		native	
Allium hyalinum	ALLIACEAE		native	
Allium jepsonii	ALLIACEAE	JEPSON'S ONION	native	
Allium lacunosum	ALLIACEAE		native	
Allium lacunosum var. davisiae	ALLIACEAE		native	
Allium lacunosum var. kernense	ALLIACEAE		native	
Allium lacunosum var. lacunosum	ALLIACEAE		native	
Allium lacunosum var. micranthum	ALLIACEAE		native	
Allium lemmonii	ALLIACEAE		native	
Allium marvinii	ALLIACEAE	YUCAIPA ONION	native	
Allium membranaceum	ALLIACEAE		native	
Allium monticola	ALLIACEAE		native	
Allium munzii	ALLIACEAE	MUNZ'S ONION	native	
Allium neapolitanum	ALLIACEAE		naturalized	
Allium nevadense	ALLIACEAE	NEVADA ONION	native	
Allium obtusum	ALLIACEAE		native	
Allium obtusum var. conspicuum	ALLIACEAE		native	
Allium obtusum var. obtusum	ALLIACEAE		native	
Allium paniculatum	ALLIACEAE		naturalized	
Allium paniculatum var. paniculatum	ALLIACEAE		naturalized	
Allium parishii	ALLIACEAE	PARISH'S ONION	native	
Allium parryi	ALLIACEAE		native	
Allium parvum	ALLIACEAE		native	
Allium peninsulare	ALLIACEAE		native	
Allium peninsulare var. franciscanum	ALLIACEAE	FRANCISCAN ONION	native	
Allium peninsulare var. peninsulare	ALLIACEAE		native	
Allium platycaule	ALLIACEAE		native	
Allium praecox	ALLIACEAE		native	
Allium punctum	ALLIACEAE	DOTTED ONION	native	
Allium sanbornii	ALLIACEAE		native	
Allium sanbornii var. congdonii	ALLIACEAE	CONGDON'S ONION	native	
Allium sanbornii var. sanbornii	ALLIACEAE	SANBORN'S ONION	native	
Allium serra	ALLIACEAE		native	
Allium sharsmithiae	ALLIACEAE	SHARSMITH'S ONION	native	
Allium shevockii	ALLIACEAE	SPANISH NEEDLE ONION	native	
Allium siskiyouense	ALLIACEAE	SISKIYOU ONION	native	
Allium tolmiei	ALLIACEAE		native	
Allium tolmiei var. tolmiei	ALLIACEAE		native	
Allium tribracteatum	ALLIACEAE	THREE-BRACTED ONION	native	
Allium triquetrum	ALLIACEAE		naturalized	
Allium tuolumnense	ALLIACEAE	RAWHIDE HILL ONION	native	
Allium unifolium	ALLIACEAE		native	
Allium validum	ALLIACEAE		native	
Allium vineale	ALLIACEAE		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		native	
Almutaster pauciflorus	ASTERACEAE		native	
Alnus incana	BETULACEAE		native	
Alnus incana subsp. tenuifolia	BETULACEAE	MOUNTAIN ALDER	native	
Alnus rhombifolia	BETULACEAE	WHITE ALDER	native	
Alnus rubra	BETULACEAE	RED ALDER	native	
Alnus viridis	BETULACEAE	GREEN ALDER	native	
Alnus viridis subsp. fruticosa	BETULACEAE	SIBERIAN ALDER	native	
Alnus viridis subsp. sinuata	BETULACEAE	SITKA ALDER	native	
Aloe maculata	ASPHODELACEAE		naturalized	
Alopecurus aequalis	POACEAE	SHORT-AWN FOXTAIL	native	
Alopecurus aequalis var. aequalis	POACEAE		native	
Alopecurus aequalis var. sonomensis	POACEAE	SONOMA ALOPECURUS	native	
Alopecurus carolinianus	POACEAE		native	
Alopecurus geniculatus	POACEAE	WATER FOXTAIL	native	
Alopecurus myosuroides	POACEAE		naturalized	
Alopecurus pratensis	POACEAE	MEADOW FOXTAIL	naturalized	
Alopecurus saccatus	POACEAE		native	
Aloysia wrightii	VERBENACEAE	WRIGHT'S BEEBRUSH	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	SAND AMARANTH	naturalized	
Amaranthus blitoides	AMARANTHACEAE	PROCUMBENT PIGWEED	native	
Amaranthus californicus	AMARANTHACEAE	CALIFORNIAN AMARANTH	native	
Amaranthus deflexus	AMARANTHACEAE		naturalized	
Amaranthus fimbriatus	AMARANTHACEAE	FRINGED AMARANTH	native	
Amaranthus hybridus	AMARANTHACEAE	GREEN AMARANTH	naturalized	
Amaranthus palmeri	AMARANTHACEAE	PALMER'S AMARANTH	native	
Amaranthus powellii	AMARANTHACEAE	POWELL'S AMARANTH	native	
Amaranthus retroflexus	AMARANTHACEAE	REDROOT PIGWEED	naturalized	
Amaranthus torreyi	AMARANTHACEAE	TORREY'S AMARANTH	native	
Amaranthus tuberculatus	AMARANTHACEAE		naturalized	
Amaranthus tuberculatus var. rudis	AMARANTHACEAE	COMMON WATERHEMP	naturalized	
Amaranthus watsonii	AMARANTHACEAE	WATSON'S AMARANTH	native	
Amaryllis belladonna	AMARYLLIDACEAE	NAKED LADIES	naturalized	
Amauriopsis dissecta	ASTERACEAE		native	
Amblyopappus pusillus	ASTERACEAE		native	
Ambrosia acanthicarpa	ASTERACEAE	ANNUAL BUR-SAGE	native	
Ambrosia ambrosioides	ASTERACEAE	BIG BUR-SAGE	native	
Ambrosia artemisiifolia	ASTERACEAE	COMMON RAGWEED	naturalized	
Ambrosia chamissonis	ASTERACEAE	BEACH BUR-SAGE	native	
Ambrosia chenopodiifolia	ASTERACEAE	SAN DIEGO BUR-SAGE	native	
Ambrosia confertiflora	ASTERACEAE		native	
Ambrosia dumosa	ASTERACEAE	WHITE BUR-SAGE	native	
Ambrosia eriocentra	ASTERACEAE	WOOLLY BUR-SAGE	native	
Ambrosia ilicifolia	ASTERACEAE	HOLLY-LEAVED BUR-SAGE	native	
Ambrosia monogyra	ASTERACEAE	SINGLEWHORL BURROBRUSH	native	
Ambrosia psilostachya	ASTERACEAE	WESTERN RAGWEED	native	
Ambrosia pumila	ASTERACEAE	SAN DIEGO AMBROSIA	native	
Ambrosia salsola	ASTERACEAE	CHEESEBUSH	native	
Ambrosia salsola var. pentalepis	ASTERACEAE		native	
Ambrosia salsola var. salsola	ASTERACEAE		native	
Amelanchier alnifolia	ROSACEAE		native	
Amelanchier alnifolia var. pumila	ROSACEAE		native	
Amelanchier alnifolia var. semiintegrifolia	ROSACEAE		native	
Amelanchier utahensis	ROSACEAE	UTAH SERVICE-BERRY	native	
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		native	
Amorpha californica var. californica	FABACEAE		native	
Amorpha californica var. napensis	FABACEAE	NAPA FALSE INDIGO	native	
Amorpha fruticosa	FABACEAE		native	
Ampelodesmos mauritanicus	POACEAE		naturalized	
Ampelopsis brevipedunculata	VITACEAE		naturalized	acceptance uncertain
Amphipappus fremontii	ASTERACEAE		native	
Amphipappus fremontii var. fremontii	ASTERACEAE		native	
Amphipappus fremontii var. spinosus	ASTERACEAE		native	
Amphiscirpus nevadensis	CYPERACEAE		native	
Amsinckia douglasiana	BORAGINACEAE	DOUGLAS' FIDDLENECK	native	
Amsinckia eastwoodiae	BORAGINACEAE	EASTWOOD'S FIDDLENECK	native	
Amsinckia furcata	BORAGINACEAE	FORKED FIDDLENECK	native	
Amsinckia grandiflora	BORAGINACEAE	LARGE-FLOWERED FIDDLENECK	native	
Amsinckia intermedia	BORAGINACEAE	COMMON FIDDLENECK	native	
Amsinckia lunaris	BORAGINACEAE	BENT-FLOWERED FIDDLENECK	native	
Amsinckia lycopsoides	BORAGINACEAE	BUGLOSS-FLOWERED FIDDLENECK	native	
Amsinckia menziesii	BORAGINACEAE	SMALL-FLOWERED FIDDLENECK	native	
Amsinckia retrorsa	BORAGINACEAE	RIGID FIDDLENECK	native	
Amsinckia spectabilis	BORAGINACEAE		native	
Amsinckia spectabilis var. microcarpa	BORAGINACEAE	MESA FIDDLENECK	native	
Amsinckia spectabilis var. spectabilis	BORAGINACEAE	SEASIDE FIDDLENECK	native	
Amsinckia tessellata	BORAGINACEAE		native	
Amsinckia tessellata var. gloriosa	BORAGINACEAE	CARRIZO FIDDLENECK	native	
Amsinckia tessellata var. tessellata	BORAGINACEAE	DESERT FIDDLENECK	native	
Amsinckia vernicosa	BORAGINACEAE	WAXY FIDDLENECK	native	
Amsonia tomentosa	APOCYNACEAE		native	
Anagallis arvensis	MYRSINACEAE	SCARLET PIMPERNEL	naturalized	
Anagallis minima	MYRSINACEAE	CHAFFWEED	native	
Anaphalis margaritacea	ASTERACEAE		native	
Anchusa officinalis	BORAGINACEAE	COMMON ALKANET	naturalized	
Ancistrocarphus filagineus	ASTERACEAE	WOOLLY FISHHOOKS	native	
Ancistrocarphus keilii	ASTERACEAE	SANTA YNEZ GROUNDSTAR	native	
Andropogon glomeratus	POACEAE		native	
Andropogon glomeratus var. scabriglumis	POACEAE	SOUTHWESTERN BUSHY BLUESTEM	native	
Andropogon virginicus	POACEAE		naturalized	
Andropogon virginicus var. virginicus	POACEAE	BROOMSEDGE BLUESTEM	naturalized	
Androsace elongata	PRIMULACEAE		native	
Androsace elongata subsp. acuta	PRIMULACEAE	CALIFORNIA ANDROSACE	native	
Androsace filiformis	PRIMULACEAE	SLENDER-STEMMED ANDROSACE	native	
Androsace occidentalis	PRIMULACEAE	WESTERN ROCK-JASMINE	native	
Androsace septentrionalis	PRIMULACEAE	PYGMY-FLOWER ROCK-JASMINE	native	
Androstephium breviflorum	THEMIDACEAE	SMALL-FLOWERED ANDROSTEPHIUM	native	
Anelsonia eurycarpa	BRASSICACEAE		native	
Anemone deltoidea	RANUNCULACEAE		native	
Anemone drummondii	RANUNCULACEAE		native	
Anemone drummondii var. drummondii	RANUNCULACEAE		native	
Anemone grayi	RANUNCULACEAE		native	
Anemone lyallii	RANUNCULACEAE		native	
Anemone multifida	RANUNCULACEAE		native	
Anemone multifida var. multifida	RANUNCULACEAE		native	
Anemone occidentalis	RANUNCULACEAE		native	
Anemone oregana	RANUNCULACEAE		native	
Anemone oregana var. oregana	RANUNCULACEAE		native	
Anemone tuberosa	RANUNCULACEAE		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	KING'S ANGELICA	native	
Angelica lineariloba	APIACEAE		native	
Angelica lucida	APIACEAE	SEA-WATCH	native	
Angelica tomentosa	APIACEAE		native	
Anisocarpus madioides	ASTERACEAE	WOODLAND TARWEED	native	
Anisocarpus scabridus	ASTERACEAE	SCABRID ALPINE TARPLANT	native	
Anisocoma acaulis	ASTERACEAE		native	
Anoda cristata	MALVACEAE	VIOLETTAS	naturalized	
Antennaria argentea	ASTERACEAE		native	
Antennaria corymbosa	ASTERACEAE		native	
Antennaria dimorpha	ASTERACEAE		native	
Antennaria flagellaris	ASTERACEAE	STOLONIFEROUS PUSSY-TOES	native	
Antennaria geyeri	ASTERACEAE		native	
Antennaria howellii	ASTERACEAE		native	
Antennaria howellii subsp. howellii	ASTERACEAE		native	
Antennaria luzuloides	ASTERACEAE		native	
Antennaria luzuloides subsp. aberrans	ASTERACEAE		native	
Antennaria luzuloides subsp. luzuloides	ASTERACEAE		native	
Antennaria marginata	ASTERACEAE	WHITE-MARGINED EVERLASTING	native	
Antennaria media	ASTERACEAE		native	
Antennaria microphylla	ASTERACEAE		native	
Antennaria pulchella	ASTERACEAE	BEAUTIFUL PUSSY-TOES	native	
Antennaria racemosa	ASTERACEAE		native	
Antennaria rosea	ASTERACEAE		native	
Antennaria rosea subsp. confinis	ASTERACEAE		native	
Antennaria rosea subsp. rosea	ASTERACEAE		native	
Antennaria suffrutescens	ASTERACEAE	EVERGREEN EVERLASTING	native	
Antennaria umbrinella	ASTERACEAE		native	
Anthemis arvensis	ASTERACEAE	CORN CHAMOMILE	naturalized	
Anthemis cotula	ASTERACEAE	MAYWEED	naturalized	
Anthoxanthum aristatum	POACEAE		naturalized	
Anthoxanthum aristatum subsp. aristatum	POACEAE	ANNUAL VERNAL GRASS	naturalized	
Anthoxanthum nitens subsp. nitens	POACEAE	VANILLA GRASS	native	
Anthoxanthum occidentale	POACEAE	CALIFORNIA SWEET GRASS	native	
Anthoxanthum odoratum	POACEAE	SWEET VERNAL GRASS	naturalized	
Anthriscus caucalis	APIACEAE	BUR-CHERVIL	naturalized	
Antirrhinum cornutum	PLANTAGINACEAE		native	
Antirrhinum coulterianum	PLANTAGINACEAE		native	
Antirrhinum filipes	PLANTAGINACEAE		native	
Antirrhinum kelloggii	PLANTAGINACEAE		native	
Antirrhinum kingii	PLANTAGINACEAE		native	
Antirrhinum leptaleum	PLANTAGINACEAE		native	
Antirrhinum multiflorum	PLANTAGINACEAE		native	
Antirrhinum nuttallianum	PLANTAGINACEAE		native	
Antirrhinum nuttallianum subsp. nuttallianum	PLANTAGINACEAE		native	
Antirrhinum nuttallianum subsp. subsessile	PLANTAGINACEAE		native	
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	TWIG-LIKE SNAPDRAGON	native	
Anulocaulis annulatus	NYCTAGINACEAE		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	
Apocynum androsaemifolium	APOCYNACEAE	BITTER DOGBANE	native	
Apocynum cannabinum	APOCYNACEAE	INDIAN HEMP	native	
Aponogeton distachyos	APONOGETONACEAE	CAPE-PONDWEED	naturalized	
Aptenia cordifolia	AIZOACEAE	BABY SUN-ROSE	naturalized	
Aquilegia eximia	RANUNCULACEAE		native	
Aquilegia formosa	RANUNCULACEAE		native	
Aquilegia pubescens	RANUNCULACEAE		native	
Aquilegia shockleyi	RANUNCULACEAE		native	
Arabidopsis thaliana	BRASSICACEAE	THALE CRESS	naturalized	
Arabis blepharophylla	BRASSICACEAE	COAST ROCKCRESS	native	
Arabis eschscholtziana	BRASSICACEAE		native	
Arabis mcdonaldiana	BRASSICACEAE	MCDONALD'S ROCKCRESS	native	
Arabis modesta	BRASSICACEAE	MODEST ROCKCRESS	native	
Arabis oregana	BRASSICACEAE	OREGON ROCKCRESS	native	
Arabis pycnocarpa	BRASSICACEAE		native	
Arabis pycnocarpa var. pycnocarpa	BRASSICACEAE		native	
Aralia californica	ARALIACEAE	ELK CLOVER	native	
Araujia sericifera	APOCYNACEAE		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		naturalized	
Arctium minus	ASTERACEAE		naturalized	
Arctomecon merriamii	PAPAVERACEAE	WHITE BEAR POPPY	native	
Arctostaphylos andersonii	ERICACEAE	ANDERSON'S MANZANITA	native	
Arctostaphylos auriculata	ERICACEAE	MOUNT DIABLO MANZANITA	native	
Arctostaphylos bakeri	ERICACEAE		native	
Arctostaphylos bakeri subsp. bakeri	ERICACEAE	BAKER'S MANZANITA	native	
Arctostaphylos bakeri subsp. sublaevis	ERICACEAE	THE CEDARS MANZANITA	native	
Arctostaphylos canescens	ERICACEAE		native	
Arctostaphylos canescens subsp. canescens	ERICACEAE	HOARY MANZANITA	native	
Arctostaphylos canescens subsp. sonomensis	ERICACEAE	SONOMA CANESCENT MANZANITA	native	
Arctostaphylos catalinae	ERICACEAE	SANTA CATALINA ISLAND MANZANITA	native	
Arctostaphylos columbiana	ERICACEAE	COLUMBIA MANZANITA	native	
Arctostaphylos confertiflora	ERICACEAE	SANTA ROSA ISLAND MANZANITA	native	
Arctostaphylos crustacea	ERICACEAE		native	
Arctostaphylos crustacea subsp. crinita	ERICACEAE	CRINITE MANZANITA	native	
Arctostaphylos crustacea subsp. crustacea	ERICACEAE		native	
Arctostaphylos crustacea subsp. eastwoodiana	ERICACEAE	EASTWOOD'S BRITTLE-LEAF MANZANITA	native	
Arctostaphylos crustacea subsp. insulicola	ERICACEAE	ISLAND MANZANITA	native	
Arctostaphylos crustacea subsp. rosei	ERICACEAE	ROSE'S MANZANITA	native	
Arctostaphylos crustacea subsp. subcordata	ERICACEAE	SANTA CRUZ ISLAND MANZANITA	native	
Arctostaphylos cruzensis	ERICACEAE	ARROYO DE LA CRUZ MANZANITA	native	
Arctostaphylos densiflora	ERICACEAE	VINE HILL MANZANITA	native	
Arctostaphylos edmundsii	ERICACEAE	LITTLE SUR MANZANITA	native	
Arctostaphylos franciscana	ERICACEAE	FRANCISCAN MANZANITA	native	
Arctostaphylos gabilanensis	ERICACEAE	GABILAN MOUNTAINS MANZANITA	native	
Arctostaphylos glandulosa	ERICACEAE		native	
Arctostaphylos glandulosa subsp. adamsii	ERICACEAE		native	
Arctostaphylos glandulosa subsp. crassifolia	ERICACEAE	DEL MAR MANZANITA	native	
Arctostaphylos glandulosa subsp. cushingiana	ERICACEAE	CUSHING MANZANITA	native	
Arctostaphylos glandulosa subsp. gabrielensis	ERICACEAE	SAN GABRIEL MANZANITA	native	
Arctostaphylos glandulosa subsp. glandulosa	ERICACEAE		native	
Arctostaphylos glandulosa subsp. howellii	ERICACEAE		native	
Arctostaphylos glandulosa subsp. leucophylla	ERICACEAE		native	
Arctostaphylos glandulosa subsp. mollis	ERICACEAE		native	
Arctostaphylos glauca	ERICACEAE		native	
Arctostaphylos glutinosa	ERICACEAE	SCHREIBER'S MANZANITA	native	
Arctostaphylos hispidula	ERICACEAE	HOWELL'S MANZANITA	native	
Arctostaphylos hookeri	ERICACEAE		native	
Arctostaphylos hookeri subsp. hearstiorum	ERICACEAE	HEARSTS' MANZANITA	native	
Arctostaphylos hookeri subsp. hookeri	ERICACEAE	HOOKER'S MANZANITA	native	
Arctostaphylos hooveri	ERICACEAE	HOOVER'S MANZANITA	native	
Arctostaphylos imbricata	ERICACEAE	SAN BRUNO MOUNTAIN MANZANITA	native	
Arctostaphylos insularis	ERICACEAE		native	
Arctostaphylos klamathensis	ERICACEAE	KLAMATH MANZANITA	native	
Arctostaphylos luciana	ERICACEAE	SANTA LUCIA MANZANITA	native	
Arctostaphylos malloryi	ERICACEAE	MALLORY'S MANZANITA	native	
Arctostaphylos manzanita	ERICACEAE		native	
Arctostaphylos manzanita subsp. elegans	ERICACEAE	KONOCTI MANZANITA	native	
Arctostaphylos manzanita subsp. glaucescens	ERICACEAE		native	
Arctostaphylos manzanita subsp. laevigata	ERICACEAE	CONTRA COSTA MANZANITA	native	
Arctostaphylos manzanita subsp. manzanita	ERICACEAE		native	
Arctostaphylos manzanita subsp. roofii	ERICACEAE		native	
Arctostaphylos manzanita subsp. wieslanderi	ERICACEAE		native	
Arctostaphylos mewukka	ERICACEAE		native	
Arctostaphylos mewukka subsp. mewukka	ERICACEAE		native	
Arctostaphylos mewukka subsp. truei	ERICACEAE	TRUE'S MANZANITA	native	
Arctostaphylos montana	ERICACEAE		native	
Arctostaphylos montana subsp. montana	ERICACEAE	MOUNT TAMALPAIS MANZANITA	native	
Arctostaphylos montana subsp. ravenii	ERICACEAE	PRESIDIO MANZANITA	native	
Arctostaphylos montaraensis	ERICACEAE	MONTARA MANZANITA	native	
Arctostaphylos montereyensis	ERICACEAE	TORO MANZANITA	native	
Arctostaphylos morroensis	ERICACEAE	MORRO MANZANITA	native	
Arctostaphylos myrtifolia	ERICACEAE	IONE MANZANITA	native	
Arctostaphylos nevadensis	ERICACEAE		native	
Arctostaphylos nevadensis subsp. knightii	ERICACEAE	KNIGHT'S MANZANITA	native	
Arctostaphylos nevadensis subsp. nevadensis	ERICACEAE	PINE-MAT MANZANITA	native	
Arctostaphylos nissenana	ERICACEAE	NISSENAN MANZANITA	native	
Arctostaphylos nortensis	ERICACEAE	DEL NORTE MANZANITA	native	
Arctostaphylos nummularia	ERICACEAE		native	
Arctostaphylos nummularia subsp. mendocinoensis	ERICACEAE	PYGMY MANZANITA	native	
Arctostaphylos nummularia subsp. nummularia	ERICACEAE		native	
Arctostaphylos obispoensis	ERICACEAE	BISHOP MANZANITA	native	
Arctostaphylos ohloneana	ERICACEAE	OHLONE MANZANITA	native	
Arctostaphylos osoensis	ERICACEAE	OSO MANZANITA	native	
Arctostaphylos otayensis	ERICACEAE	OTAY MANZANITA	native	
Arctostaphylos pacifica	ERICACEAE	PACIFIC MANZANITA	native	
Arctostaphylos pajaroensis	ERICACEAE	PAJARO MANZANITA	native	
Arctostaphylos pallida	ERICACEAE	PALLID MANZANITA	native	
Arctostaphylos parryana	ERICACEAE		native	
Arctostaphylos parryana subsp. desertica	ERICACEAE	DESERT MANZANITA	native	
Arctostaphylos parryana subsp. parryana	ERICACEAE	PARRY MANZANITA	native	
Arctostaphylos parryana subsp. tumescens	ERICACEAE	INTERIOR MANZANITA	native	
Arctostaphylos patula	ERICACEAE	GREENLEAF MANZANITA	native	
Arctostaphylos pechoensis	ERICACEAE	PECHO MANZANITA	native	
Arctostaphylos pilosula	ERICACEAE	SANTA MARGARITA MANZANITA	native	
Arctostaphylos pringlei	ERICACEAE		native	
Arctostaphylos pringlei subsp. drupacea	ERICACEAE		native	
Arctostaphylos pumila	ERICACEAE	SANDMAT MANZANITA	native	
Arctostaphylos pungens	ERICACEAE		native	
Arctostaphylos purissima	ERICACEAE	LA PURISIMA MANZANITA	native	
Arctostaphylos rainbowensis	ERICACEAE	RAINBOW MANZANITA	native	
Arctostaphylos refugioensis	ERICACEAE	REFUGIO MANZANITA	native	
Arctostaphylos regismontana	ERICACEAE	KINGS MOUNTAIN MANZANITA	native	
Arctostaphylos rudis	ERICACEAE	SAND MESA MANZANITA	native	
Arctostaphylos sensitiva	ERICACEAE		native	
Arctostaphylos silvicola	ERICACEAE	BONNY DOON MANZANITA	native	
Arctostaphylos stanfordiana	ERICACEAE		native	
Arctostaphylos stanfordiana subsp. decumbens	ERICACEAE	RINCON RIDGE MANZANITA	native	
Arctostaphylos stanfordiana subsp. raichei	ERICACEAE	RAICHE'S MANZANITA	native	
Arctostaphylos stanfordiana subsp. stanfordiana	ERICACEAE		native	
Arctostaphylos tomentosa	ERICACEAE		native	
Arctostaphylos tomentosa subsp. bracteosa	ERICACEAE		native	
Arctostaphylos tomentosa subsp. daciticola	ERICACEAE	DACITE MANZANITA	native	
Arctostaphylos tomentosa subsp. hebeclada	ERICACEAE		native	
Arctostaphylos tomentosa subsp. tomentosa	ERICACEAE		native	
Arctostaphylos uva-ursi	ERICACEAE	KINNIKINNICK	native	
Arctostaphylos virgata	ERICACEAE	MARIN MANZANITA	native	
Arctostaphylos viridissima	ERICACEAE	WHITE-HAIRED MANZANITA	native	
Arctostaphylos viscida	ERICACEAE		native	
Arctostaphylos viscida subsp. mariposa	ERICACEAE	MARIPOSA MANZANITA	native	
Arctostaphylos viscida subsp. pulchella	ERICACEAE		native	
Arctostaphylos viscida subsp. viscida	ERICACEAE		native	
Arctotheca calendula	ASTERACEAE	CAPEWEED	naturalized	
Arctotheca prostrata	ASTERACEAE	PROSTRATE CAPEWEED	naturalized	
Arctotis venusta	ASTERACEAE	BLUE-EYED AFRICAN DAISY	naturalized	
Arenaria lanuginosa	CARYOPHYLLACEAE		native	
Arenaria lanuginosa var. saxosa	CARYOPHYLLACEAE	SPREADING SANDWORT	native	
Arenaria paludicola	CARYOPHYLLACEAE	MARSH SANDWORT	native	
Arenaria serpyllifolia	CARYOPHYLLACEAE		naturalized	
Arenaria serpyllifolia var. serpyllifolia	CARYOPHYLLACEAE	THYMELEAF SANDWORT	naturalized	
Argemone corymbosa	PAPAVERACEAE		native	
Argemone munita	PAPAVERACEAE	CHICALOTE	native	
Argyranthemum foeniculaceum	ASTERACEAE		naturalized	
Argyrochosma jonesii	PTERIDACEAE	JONES' FALSE CLOAK-FERN	native	
Argyrochosma limitanea	PTERIDACEAE		native	
Argyrochosma limitanea subsp. limitanea	PTERIDACEAE	SOUTHWESTERN FALSE CLOAK-FERN	native	
Aristida adscensionis	POACEAE	SIXWEEKS THREE-AWN	native	
Aristida californica	POACEAE	MOJAVE THREE-AWN	native	
Aristida dichotoma	POACEAE	CHURCHMOUSE THREE-AWN	naturalized	
Aristida divaricata	POACEAE	POVERTY THREE-AWN	native	
Aristida oligantha	POACEAE	OLDFIELD THREE-AWN	native	
Aristida purpurea	POACEAE		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		native	
Aristida ternipes var. gentilis	POACEAE	HOOK THREE-AWN	native	
Aristocapsa insignis	POLYGONACEAE	INDIAN VALLEY SPINEFLOWER	native	
Aristolochia californica	ARISTOLOCHIACEAE		native	
Armeria maritima	PLUMBAGINACEAE		native	
Armeria maritima subsp. californica	PLUMBAGINACEAE		native	
Armoracia rusticana	BRASSICACEAE	HORSE RADISH	naturalized	
Arnica cernua	ASTERACEAE	SERPENTINE ARNICA	native	
Arnica chamissonis	ASTERACEAE	CHAMISSO ARNICA	native	
Arnica cordifolia	ASTERACEAE	HEARTLEAF ARNICA	native	
Arnica dealbata	ASTERACEAE	MOCK LEOPARDBANE	native	
Arnica discoidea	ASTERACEAE	RAYLESS ARNICA	native	
Arnica fulgens	ASTERACEAE	HILLSIDE ARNICA	native	
Arnica lanceolata subsp. prima	ASTERACEAE	CLASPING ARNICA	native	
Arnica latifolia	ASTERACEAE	BROADLEAF ARNICA	native	
Arnica longifolia	ASTERACEAE	SPEARLEAF ARNICA	native	
Arnica mollis	ASTERACEAE	HAIRY ARNICA	native	
Arnica nevadensis	ASTERACEAE	SIERRA ARNICA	native	
Arnica ovata	ASTERACEAE	STICKY LEAF ARNICA	native	
Arnica parryi	ASTERACEAE	NODDING ARNICA	native	
Arnica sororia	ASTERACEAE	TWIN ARNICA	native	
Arnica spathulata	ASTERACEAE	KLAMATH ARNICA	native	
Arnica venosa	ASTERACEAE	SHASTA COUNTY ARNICA	native	
Arnica viscosa	ASTERACEAE	MOUNT SHASTA ARNICA	native	
Arrhenatherum elatius	POACEAE	TALL OAT GRASS	naturalized	
Artemisia absinthium	ASTERACEAE		naturalized	acceptance uncertain
Artemisia arbuscula	ASTERACEAE	LOW SAGEBRUSH	native	
Artemisia arbuscula subsp. arbuscula	ASTERACEAE		native	
Artemisia arbuscula subsp. longiloba	ASTERACEAE		native	
Artemisia biennis	ASTERACEAE	BIENNIAL WORMWOOD	naturalized	
Artemisia bigelovii	ASTERACEAE	BIGELOW SAGEWORT	native	
Artemisia borealis	ASTERACEAE		native	
Artemisia borealis subsp. borealis	ASTERACEAE	BOREAL SAGE	native	
Artemisia californica	ASTERACEAE	CALIFORNIA SAGEBRUSH	native	
Artemisia campestris var. scouleriana	ASTERACEAE		native	acceptance uncertain
Artemisia cana	ASTERACEAE		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		native	
Artemisia ludoviciana subsp. candicans	ASTERACEAE		native	
Artemisia ludoviciana subsp. incompta	ASTERACEAE		native	
Artemisia ludoviciana subsp. ludoviciana	ASTERACEAE		native	
Artemisia michauxiana	ASTERACEAE	LEMON SAGEWORT	native	
Artemisia nesiotica	ASTERACEAE	ISLAND SAGEBRUSH	native	
Artemisia norvegica	ASTERACEAE		native	
Artemisia norvegica subsp. saxatilis	ASTERACEAE	ALPINE SAGEWORT	native	
Artemisia nova	ASTERACEAE	BLACK SAGEBRUSH	native	
Artemisia palmeri	ASTERACEAE	SAN DIEGO 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		native	
Artemisia tridentata subsp. parishii	ASTERACEAE		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
Arthrocnemum subterminale	CHENOPODIACEAE		native	
Arum italicum	ARACEAE	ITALIAN ARUM	naturalized	
Aruncus dioicus	ROSACEAE		native	
Aruncus dioicus var. acuminatus	ROSACEAE		native	
Arundo donax	POACEAE	GIANT REED	naturalized	
Asarum caudatum	ARISTOLOCHIACEAE		native	
Asarum hartwegii	ARISTOLOCHIACEAE		native	
Asarum lemmonii	ARISTOLOCHIACEAE		native	
Asarum marmoratum	ARISTOLOCHIACEAE	MARBLED WILD-GINGER	native	
Asclepias albicans	APOCYNACEAE	WHITE-STEMMED MILKWEED	native	
Asclepias asperula	APOCYNACEAE		native	
Asclepias asperula subsp. asperula	APOCYNACEAE	ANTELOPE-HORNS	native	
Asclepias californica	APOCYNACEAE	CALIFORNIA MILKWEED	native	
Asclepias cordifolia	APOCYNACEAE	PURPLE MILKWEED	native	
Asclepias cryptoceras	APOCYNACEAE	HUMBOLDT MOUNTAINS MILKWEED	native	
Asclepias eriocarpa	APOCYNACEAE	KOTOLO	native	
Asclepias erosa	APOCYNACEAE	DESERT MILKWEED	native	
Asclepias fascicularis	APOCYNACEAE	NARROW-LEAF MILKWEED	native	
Asclepias nyctaginifolia	APOCYNACEAE	MOJAVE MILKWEED	native	
Asclepias solanoana	APOCYNACEAE	SERPENTINE MILKWEED	native	
Asclepias speciosa	APOCYNACEAE	SHOWY MILKWEED	native	
Asclepias subulata	APOCYNACEAE	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	
Asperugo procumbens	BORAGINACEAE		naturalized	
Asphodelus fistulosus	ASPHODELACEAE		naturalized	
Aspidotis californica	PTERIDACEAE	CALIFORNIA LACE FERN	native	
Aspidotis carlotta-halliae	PTERIDACEAE	CARLOTTA HALL'S LACE FERN	native	
Aspidotis densa	PTERIDACEAE	DENSE LACE FERN	native	
Asplenium septentrionale	ASPLENIACEAE	NORTHERN SPLEENWORT	native	
Asplenium trichomanes	ASPLENIACEAE		native	
Asplenium trichomanes subsp. trichomanes	ASPLENIACEAE	MAIDENHAIR SPLEENWORT	native	
Asplenium vespertinum	ASPLENIACEAE	WESTERN SPLEENWORT	native	
Asplenium viride	ASPLENIACEAE	GREEN SPLEENWORT	native	
Astragalus accidens	FABACEAE		native	
Astragalus accidens var. hendersonii	FABACEAE		native	
Astragalus acutirostris	FABACEAE		native	
Astragalus agnicidus	FABACEAE	HUMBOLDT COUNTY MILKVETCH	native	
Astragalus agrestis	FABACEAE	FIELD MILKVETCH	native	
Astragalus albens	FABACEAE	CUSHENBURY MILKVETCH	native	
Astragalus allochrous	FABACEAE		native	
Astragalus allochrous var. playanus	FABACEAE	PLAYA MILKVETCH	native	
Astragalus andersonii	FABACEAE		native	
Astragalus anxius	FABACEAE	ASH VALLEY MILKVETCH	native	
Astragalus argophyllus	FABACEAE		native	
Astragalus argophyllus var. argophyllus	FABACEAE	SILVER-LEAVED 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	KLAMATH MILKVETCH	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	CHICKPEA MILKVETCH	naturalized	acceptance uncertain
Astragalus cimae	FABACEAE		native	
Astragalus cimae var. cimae	FABACEAE	CIMA MILKVETCH	native	
Astragalus cimae var. sufflatus	FABACEAE	INFLATED CIMA MILKVETCH	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	MORRO MILKVETCH	native	
Astragalus curvicarpus	FABACEAE		native	
Astragalus curvicarpus var. curvicarpus	FABACEAE	SICKLE MILKVETCH	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	MILES' MILKVETCH	native	
Astragalus didymocarpus var. obispoensis	FABACEAE		native	
Astragalus douglasii	FABACEAE	DOUGLAS MILKVETCH	native	
Astragalus douglasii var. douglasii	FABACEAE		native	
Astragalus douglasii var. parishii	FABACEAE		native	
Astragalus douglasii var. perstrictus	FABACEAE	JACUMBA MILKVETCH	native	
Astragalus ertterae	FABACEAE	WALKER PASS MILKVETCH	native	
Astragalus filipes	FABACEAE	BASALT MILKVETCH	native	
Astragalus funereus	FABACEAE	BLACK MILKVETCH	native	
Astragalus gambelianus	FABACEAE	LITTLE BLUE LOCO	native	
Astragalus geyeri	FABACEAE		native	
Astragalus geyeri var. geyeri	FABACEAE	GEYER'S MILKVETCH	native	
Astragalus gibbsii	FABACEAE	GIBBS' MILKVETCH	native	
Astragalus gilmanii	FABACEAE	GILMAN'S MILKVETCH	native	
Astragalus hornii	FABACEAE		native	
Astragalus hornii var. hornii	FABACEAE	HORN'S MILKVETCH	native	
Astragalus insularis	FABACEAE		native	
Astragalus insularis var. harwoodii	FABACEAE	HARWOOD'S MILKVETCH	native	
Astragalus inversus	FABACEAE	SUSANVILLE MILKVETCH	native	
Astragalus inyoensis	FABACEAE	INYO MILKVETCH	native	
Astragalus iodanthus	FABACEAE		native	
Astragalus iodanthus var. diaphanoides	FABACEAE	SNAKE MILKVETCH	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	SPINY MILKVETCH	native	
Astragalus layneae	FABACEAE	LAYNE MILKVETCH	native	
Astragalus lemmonii	FABACEAE	LEMMON'S MILKVETCH	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	FREMONT'S MILKVETCH	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	BIG BEAR VALLEY MILKVETCH	native	
Astragalus lentiginosus var. variabilis	FABACEAE		native	
Astragalus leucolobus	FABACEAE	BIG 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 ISLAND MILKVETCH	native	
Astragalus minthorniae	FABACEAE		native	
Astragalus minthorniae var. villosus	FABACEAE		native	
Astragalus mohavensis	FABACEAE		native	
Astragalus mohavensis var. hemigyrus	FABACEAE	CURVED-POD MILKVETCH	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	NEWBERRY'S MILKVETCH	native	
Astragalus nutans	FABACEAE	PROVIDENCE MOUNTAINS MILKVETCH	native	
Astragalus nuttallianus	FABACEAE	SMALL-FLOWERED MILKVETCH	native	
Astragalus nuttallianus var. cedrosensis	FABACEAE		native	
Astragalus nuttallianus var. imperfectus	FABACEAE		native	
Astragalus nuttallii	FABACEAE	NUTTALL'S MILKVETCH	native	
Astragalus nuttallii var. nuttallii	FABACEAE	OCEAN BLUFF MILKVETCH	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	EGG MILKVETCH	native	
Astragalus oxyphysus	FABACEAE	STANISLAUS MILKVETCH	native	
Astragalus pachypus	FABACEAE		native	
Astragalus pachypus var. jaegeri	FABACEAE	JAEGER'S BUSH MILKVETCH	native	
Astragalus pachypus var. pachypus	FABACEAE	BUSH MILKVETCH	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	PREUSS' MILKVETCH	native	
Astragalus pseudiodanthus	FABACEAE	TONOPAH MILKVETCH	native	
Astragalus pulsiferae	FABACEAE		native	
Astragalus pulsiferae var. coronensis	FABACEAE	MODOC PLATEAU MILKVETCH	native	
Astragalus pulsiferae var. pulsiferae	FABACEAE	PULSIFER'S 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	COASTAL MARSH MILKVETCH	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	SHOCKLEY'S 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 tidestromii	FABACEAE	TIDESTROM'S MILKVETCH	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	ANTISELL MILKVETCH	native	
Astragalus trichopodus var. trichopodus	FABACEAE	SANTA BARBARA MILKVETCH	native	
Astragalus umbraticus	FABACEAE	BALD MOUNTAIN MILKVETCH	native	
Astragalus webberi	FABACEAE	WEBBER'S MILKVETCH	native	
Astragalus whitneyi	FABACEAE	BALLOON MILKVETCH	native	
Astragalus whitneyi var. confusus	FABACEAE		native	
Astragalus whitneyi var. lenophyllus	FABACEAE	WOOLLY-LEAVED MILKVETCH	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		native	
Athyrium filix-femina var. cyclosorum	WOODSIACEAE		native	
Athysanus pusillus	BRASSICACEAE		native	
Athysanus unilateralis	BRASSICACEAE		native	
Atrichoseris platyphylla	ASTERACEAE		native	
Atriplex amnicola	CHENOPODIACEAE	SWAMP SALTBUSH	naturalized	
Atriplex argentea	CHENOPODIACEAE	SILVERSCALE	native	
Atriplex argentea var. argentea	CHENOPODIACEAE		native	
Atriplex argentea var. expansa	CHENOPODIACEAE		native	
Atriplex argentea var. hillmanii	CHENOPODIACEAE	HILLMAN'S SILVERSCALE	native	
Atriplex argentea var. longitrichoma	CHENOPODIACEAE	PAHRUMP ORACH	native	
Atriplex canescens	CHENOPODIACEAE	FOUR-WING SALTBUSH	native	
Atriplex canescens var. canescens	CHENOPODIACEAE		native	
Atriplex canescens var. laciniata	CHENOPODIACEAE	CALEB SALTBUSH	native	
Atriplex canescens var. linearis	CHENOPODIACEAE	SLENDERLEAF SALTBUSH	native	
Atriplex canescens var. macilenta	CHENOPODIACEAE	SALTON SALTBUSH	native	
Atriplex confertifolia	CHENOPODIACEAE	SHADSCALE	native	
Atriplex cordulata	CHENOPODIACEAE	HEARTSCALE	native	
Atriplex cordulata var. cordulata	CHENOPODIACEAE		native	
Atriplex cordulata var. erecticaulis	CHENOPODIACEAE	EARLIMART ORACH	native	
Atriplex coronata	CHENOPODIACEAE		native	
Atriplex coronata var. coronata	CHENOPODIACEAE	CROWNSCALE	native	
Atriplex coronata var. notatior	CHENOPODIACEAE	SAN JACINTO VALLEY CROWNSCALE	native	
Atriplex coronata var. vallicola	CHENOPODIACEAE	LOST HILLS CROWNSCALE	native	
Atriplex coulteri	CHENOPODIACEAE	COULTER'S SALTBUSH	native	
Atriplex depressa	CHENOPODIACEAE	BRITTLESCALE	native	
Atriplex dioica	CHENOPODIACEAE	THICKLEAF ORACH	native	
Atriplex elegans	CHENOPODIACEAE	WHEELSCALE	native	
Atriplex elegans var. elegans	CHENOPODIACEAE		native	
Atriplex elegans var. fasciculata	CHENOPODIACEAE	MECCA ORACH	native	
Atriplex fruticulosa	CHENOPODIACEAE	LITTLE OAK ORACH	native	
Atriplex gardneri	CHENOPODIACEAE		native	
Atriplex gardneri var. falcata	CHENOPODIACEAE	FALCATE SALTBUSH	native	
Atriplex glauca	CHENOPODIACEAE		naturalized	
Atriplex gmelinii	CHENOPODIACEAE		native	
Atriplex gmelinii var. gmelinii	CHENOPODIACEAE	GMELIN'S SALTBUSH	native	
Atriplex hortensis	CHENOPODIACEAE	GARDEN ORACH	naturalized	
Atriplex hymenelytra	CHENOPODIACEAE	DESERT-HOLLY	native	
Atriplex lentiformis	CHENOPODIACEAE	BIG SALTBUSH	native	
Atriplex leucophylla	CHENOPODIACEAE	BEACH SALTBUSH	native	
Atriplex lindleyi	CHENOPODIACEAE		naturalized	
Atriplex micrantha	CHENOPODIACEAE	RUSSIAN ATRIPLEX	naturalized	
Atriplex minuscula	CHENOPODIACEAE	LESSER SALTSCALE	native	
Atriplex nummularia	CHENOPODIACEAE		naturalized	
Atriplex pacifica	CHENOPODIACEAE	SOUTH COAST SALTSCALE	native	
Atriplex parishii	CHENOPODIACEAE	PARISH'S BRITTLESCALE	native	
Atriplex parryi	CHENOPODIACEAE		native	
Atriplex patula	CHENOPODIACEAE	SPEAR ORACH	native	
Atriplex persistens	CHENOPODIACEAE	VERNAL POOL SMALLSCALE	native	
Atriplex polycarpa	CHENOPODIACEAE	ALLSCALE SALTBUSH	native	
Atriplex prostrata	CHENOPODIACEAE	FAT-HEN	naturalized	
Atriplex pusilla	CHENOPODIACEAE	SMOOTH SALTBUSH	native	
Atriplex rosea	CHENOPODIACEAE	TUMBLING ORACH	naturalized	
Atriplex semibaccata	CHENOPODIACEAE	AUSTRALIAN SALTBUSH	naturalized	
Atriplex serenana	CHENOPODIACEAE	STINKING ORACH	native	
Atriplex serenana var. davidsonii	CHENOPODIACEAE	DAVIDSON'S SALTSCALE	native	
Atriplex serenana var. serenana	CHENOPODIACEAE		native	
Atriplex spinifera	CHENOPODIACEAE	SPINY SALTBUSH	native	
Atriplex suberecta	CHENOPODIACEAE	SPRAWLING SALTBUSH	naturalized	
Atriplex subtilis	CHENOPODIACEAE	SUBTLE ORACH	native	
Atriplex torreyi	CHENOPODIACEAE		native	
Atriplex torreyi var. torreyi	CHENOPODIACEAE	TORREY'S SALTBUSH	native	
Atriplex truncata	CHENOPODIACEAE	WEDGESCALE	native	
Atriplex tularensis	CHENOPODIACEAE	BAKERSFIELD SMALLSCALE	native	
Atriplex watsonii	CHENOPODIACEAE		native	
Avena barbata	POACEAE	SLENDER WILD OAT	naturalized	
Avena fatua	POACEAE	WILD OAT	naturalized	
Avena sativa	POACEAE	CULTIVATED OAT	naturalized	
Avena sterilis	POACEAE	ANIMATED OAT	naturalized	
Avicennia marina	ACANTHACEAE		naturalized	
Avicennia marina var. australasica	ACANTHACEAE	GRAY MANGROVE	naturalized	
Ayenia compacta	MALVACEAE	CALIFORNIA AYENIA	native	
Azolla filiculoides	AZOLLACEAE		native	
Azolla microphylla	AZOLLACEAE	MEXICAN MOSQUITO FERN	native	
Baccharis brachyphylla	ASTERACEAE		native	
Baccharis glutinosa	ASTERACEAE	MARSH BACCHARIS	native	
Baccharis malibuensis	ASTERACEAE	MALIBU BACCHARIS	native	
Baccharis pilularis	ASTERACEAE	COYOTE BRUSH	native	
Baccharis pilularis subsp. consanguinea	ASTERACEAE		native	
Baccharis pilularis subsp. pilularis	ASTERACEAE		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		native	
Baccharis salicifolia subsp. salicifolia	ASTERACEAE	MULE FAT	native	
Baccharis salicina	ASTERACEAE		native	
Baccharis sarothroides	ASTERACEAE	BROOM BACCHARIS	native	
Baccharis sergiloides	ASTERACEAE	DESERT BACCHARIS	native	
Baccharis vanessae	ASTERACEAE	ENCINITAS BACCHARIS	native	
Bacopa eisenii	PLANTAGINACEAE		native	
Bacopa monnieri	PLANTAGINACEAE		naturalized	
Bacopa rotundifolia	PLANTAGINACEAE		naturalized	
Bahia neomexicana	ASTERACEAE		native	
Bahiopsis laciniata	ASTERACEAE	SAN DIEGO VIGUIERA	native	
Bahiopsis parishii	ASTERACEAE	PARISH'S GOLDENEYE	native	
Bahiopsis reticulata	ASTERACEAE	DEATH VALLEY GOLDENEYE	native	
Baileya multiradiata	ASTERACEAE		native	
Baileya pauciradiata	ASTERACEAE		native	
Baileya pleniradiata	ASTERACEAE		native	
Balsamorhiza deltoidea	ASTERACEAE		native	
Balsamorhiza hirsuta	ASTERACEAE		native	
Balsamorhiza hookeri	ASTERACEAE		native	
Balsamorhiza macrolepis	ASTERACEAE		native	
Balsamorhiza sagittata	ASTERACEAE		native	
Balsamorhiza sericea	ASTERACEAE	SILKY BALSAMROOT	native	
Balsamorhiza serrata	ASTERACEAE	SERRATED BALSAMROOT	native	
Barbarea orthoceras	BRASSICACEAE		native	
Barbarea verna	BRASSICACEAE	EARLY WINTER CRESS	naturalized	
Barbarea vulgaris	BRASSICACEAE	YELLOW ROCKET	naturalized	
Bassia hyssopifolia	CHENOPODIACEAE		naturalized	
Batis maritima	BATACEAE	BEACHWORT	native	
Bebbia juncea	ASTERACEAE		native	
Bebbia juncea var. aspera	ASTERACEAE		native	
Beckmannia syzigachne	POACEAE	AMERICAN SLOUGH GRASS	native	
Bellardia trixago	OROBANCHACEAE	MEDITERRANEAN LINSEED	naturalized	
Bellis perennis	ASTERACEAE	ENGLISH DAISY	naturalized	
Benitoa occidentalis	ASTERACEAE		native	
Bensoniella oregona	SAXIFRAGACEAE	BENSONIELLA	native	
Berberis aquifolium	BERBERIDACEAE		native	
Berberis aquifolium var. aquifolium	BERBERIDACEAE		native	
Berberis aquifolium var. dictyota	BERBERIDACEAE		native	
Berberis aquifolium var. repens	BERBERIDACEAE		native	
Berberis darwinii	BERBERIDACEAE		naturalized	
Berberis fremontii	BERBERIDACEAE		native	
Berberis haematocarpa	BERBERIDACEAE		native	
Berberis harrisoniana	BERBERIDACEAE	KOFA MOUNTAIN BARBERRY	native	
Berberis higginsiae	BERBERIDACEAE		native	
Berberis nervosa	BERBERIDACEAE		native	
Berberis nevinii	BERBERIDACEAE	NEVIN'S BARBERRY	native	
Berberis pinnata	BERBERIDACEAE		native	
Berberis pinnata subsp. insularis	BERBERIDACEAE	ISLAND BARBERRY	native	
Berberis pinnata subsp. pinnata	BERBERIDACEAE		native	
Berberis vulgaris	BERBERIDACEAE		naturalized	
Bergerocactus emoryi	CACTACEAE	GOLDEN-SPINED CEREUS	native	
Bergia texana	ELATINACEAE		native	
Bernardia incana	EUPHORBIACEAE		native	
Berteroa incana	BRASSICACEAE		naturalized	
Berula erecta	APIACEAE		native	
Beta vulgaris	CHENOPODIACEAE		naturalized	
Beta vulgaris subsp. maritima	CHENOPODIACEAE	SEA BEET	naturalized	
Betula glandulosa	BETULACEAE	DWARF RESIN BIRCH	native	
Betula occidentalis	BETULACEAE	WATER BIRCH	native	
Bidens cernua	ASTERACEAE	NODDING BUR-MARIGOLD	native	
Bidens frondosa	ASTERACEAE	STICKTIGHT	native	
Bidens laevis	ASTERACEAE	BUR-MARIGOLD	native	
Bidens pilosa	ASTERACEAE	COMMON BEGGAR-TICKS	naturalized	
Bidens tripartita	ASTERACEAE		naturalized	
Bidens vulgata	ASTERACEAE		naturalized	
Billardiera heterophylla	PITTOSPORACEAE	AUSTRALIAN BLUEBELL	naturalized	
Bistorta bistortoides	POLYGONACEAE	WESTERN BISTORT	native	
Bituminaria bituminosa	FABACEAE	ARABIAN PEA	naturalized	
Blechnum spicant	BLECHNACEAE	DEER FERN	native	
Blennosperma bakeri	ASTERACEAE	SONOMA SUNSHINE	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 TARPLANT	native	
Bloomeria clevelandii	THEMIDACEAE	SAN DIEGO GOLDENSTAR	native	
Bloomeria crocea	THEMIDACEAE	COMMON GOLDENSTAR	native	
Bloomeria crocea var. aurea	THEMIDACEAE		native	
Bloomeria crocea var. crocea	THEMIDACEAE		native	
Bloomeria crocea var. montana	THEMIDACEAE	MOUNTAIN GOLDENSTAR	native	
Bloomeria humilis	THEMIDACEAE	DWARF GOLDENSTAR	native	
Boechera acutina	BRASSICACEAE	POINTED ROCKCRESS	native	
Boechera arcuata	BRASSICACEAE	ARCHING ROCKCRESS	native	
Boechera bodiensis	BRASSICACEAE	BODIE HILLS ROCKCRESS	native	
Boechera breweri	BRASSICACEAE		native	
Boechera breweri subsp. breweri	BRASSICACEAE	BREWER'S ROCKCRESS	native	
Boechera breweri subsp. shastaensis	BRASSICACEAE	SHASTA ROCKCRESS	native	
Boechera calderi	BRASSICACEAE	CALDER'S ROCKCRESS	native	
Boechera californica	BRASSICACEAE	CALIFORNIA ROCKCRESS	native	
Boechera cobrensis	BRASSICACEAE	MASONIC ROCKCRESS	native	
Boechera constancei	BRASSICACEAE	CONSTANCE'S ROCKCRESS	native	
Boechera covillei	BRASSICACEAE	COVILLE'S ROCKCRESS	native	
Boechera davidsonii	BRASSICACEAE	DAVIDSON'S ROCKCRESS	native	
Boechera depauperata	BRASSICACEAE	SOLDIER ROCKCRESS	native	
Boechera dispar	BRASSICACEAE	PINYON ROCKCRESS	native	
Boechera divaricarpa	BRASSICACEAE	SPREADINGPOD ROCKCRESS	native	
Boechera elkoensis	BRASSICACEAE	ELKO ROCKCRESS	native	
Boechera evadens	BRASSICACEAE	HIDDEN ROCKCRESS	native	
Boechera glaucovalvula	BRASSICACEAE	BLUEPOD ROCKCRESS	native	
Boechera hoffmannii	BRASSICACEAE	HOFFMANN'S ROCKCRESS	native	
Boechera howellii	BRASSICACEAE	HOWELL'S ROCKCRESS	native	
Boechera inyoensis	BRASSICACEAE	INYO ROCKCRESS	native	
Boechera johnstonii	BRASSICACEAE	JOHNSTON'S ROCKCRESS	native	
Boechera koehleri	BRASSICACEAE	KOEHLER'S ROCKCRESS	native	
Boechera lemmonii	BRASSICACEAE	LEMMON'S ROCKCRESS	native	
Boechera lincolnensis	BRASSICACEAE	LINCOLN ROCKCRESS	native	
Boechera lyallii	BRASSICACEAE	LYALL'S ROCKCRESS	native	
Boechera parishii	BRASSICACEAE	PARISH'S ROCKCRESS	native	
Boechera pauciflora	BRASSICACEAE	HAIRY STEM ROCKCRESS	native	
Boechera paupercula	BRASSICACEAE	SMALL-FLOWERED ROCKCRESS	native	
Boechera peirsonii	BRASSICACEAE	PEIRSON'S ROCKCRESS	native	
Boechera pendulina	BRASSICACEAE	RABBIT-EAR ROCKCRESS	native	
Boechera pendulocarpa	BRASSICACEAE	DROPSEED ROCKCRESS	native	
Boechera perennans	BRASSICACEAE	PERENNIAL ROCKCRESS	native	
Boechera pinetorum	BRASSICACEAE	WOODLAND ROCKCRESS	native	
Boechera pinzliae	BRASSICACEAE	PINZL'S ROCKCRESS	native	
Boechera platysperma	BRASSICACEAE	PIONEER ROCKCRESS	native	
Boechera pratincola	BRASSICACEAE	MEADOW ROCKCRESS	native	
Boechera puberula	BRASSICACEAE	SILVER ROCKCRESS	native	
Boechera pulchra	BRASSICACEAE	BEAUTIFUL ROCKCRESS	native	
Boechera pygmaea	BRASSICACEAE	TULARE COUNTY ROCKCRESS	native	
Boechera rectissima	BRASSICACEAE	BRISTLY LEAF ROCKCRESS	native	
Boechera repanda	BRASSICACEAE	YOSEMITE ROCKCRESS	native	
Boechera retrofracta	BRASSICACEAE	REFLEXED ROCKCRESS	native	
Boechera rigidissima	BRASSICACEAE	TRINITY MOUNTAIN ROCKCRESS	native	
Boechera rollei	BRASSICACEAE	ROLLE'S ROCKCRESS	native	
Boechera rubicundula	BRASSICACEAE	MOUNT DAY ROCKCRESS	native	
Boechera serpenticola	BRASSICACEAE	SERPENTINE ROCKCRESS	native	
Boechera shevockii	BRASSICACEAE	SHEVOCK'S ROCKCRESS	native	
Boechera shockleyi	BRASSICACEAE	SHOCKLEY'S ROCKCRESS	native	
Boechera sparsiflora	BRASSICACEAE	SICKLEPOD ROCKCRESS	native	
Boechera stricta	BRASSICACEAE	DRUMMOND'S ROCKCRESS	native	
Boechera subpinnatifida	BRASSICACEAE	KLAMATH ROCKCRESS	native	
Boechera suffrutescens	BRASSICACEAE	WOODY ROCKCRESS	native	
Boechera tiehmii	BRASSICACEAE	TIEHM'S ROCKCRESS	native	
Boechera tularensis	BRASSICACEAE	TULARE ROCKCRESS	native	
Boechera ultraalsa	BRASSICACEAE	SNOW MOUNTAIN ROCKCRESS	native	
Boechera xylopoda	BRASSICACEAE	BIGFOOT HYBRID ROCKCRESS	native	
Boechera yorkii	BRASSICACEAE	LAST CHANCE ROCKCRESS	native	
Boehmeria cylindrica	URTICACEAE		naturalized	
Boerhavia coccinea	NYCTAGINACEAE	SCARLET SPIDERLING	native	
Boerhavia coulteri	NYCTAGINACEAE		native	
Boerhavia coulteri var. palmeri	NYCTAGINACEAE		native	
Boerhavia diffusa	NYCTAGINACEAE		naturalized	
Boerhavia triquetra	NYCTAGINACEAE		native	
Boerhavia triquetra var. intermedia	NYCTAGINACEAE		native	
Boerhavia wrightii	NYCTAGINACEAE		native	
Bolandra californica	SAXIFRAGACEAE	SIERRA BOLANDRA	native	
Bolboschoenus fluviatilis	CYPERACEAE	RIVER BULRUSH	native	
Bolboschoenus glaucus	CYPERACEAE		naturalized	
Bolboschoenus maritimus	CYPERACEAE		native	
Bolboschoenus maritimus subsp. paludosus	CYPERACEAE	ALKALI BULRUSH	native	
Bolboschoenus robustus	CYPERACEAE	SEACOAST BULRUSH	native	
Borago officinalis	BORAGINACEAE		naturalized	
Bothriochloa barbinodis	POACEAE	CANE BLUESTEM	native	
Bothriochloa laguroides	POACEAE		naturalized	
Bothriochloa laguroides subsp. torreyana	POACEAE	SILVER BLUESTEM	naturalized	
Botrychium ascendens	OPHIOGLOSSACEAE	UPSWEPT MOONWORT	native	
Botrychium crenulatum	OPHIOGLOSSACEAE	SCALLOPED MOONWORT	native	
Botrychium lineare	OPHIOGLOSSACEAE	SLENDER MOONWORT	native	
Botrychium lunaria	OPHIOGLOSSACEAE	COMMON MOONWORT	native	
Botrychium minganense	OPHIOGLOSSACEAE	MINGAN MOONWORT	native	
Botrychium montanum	OPHIOGLOSSACEAE	WESTERN GOBLIN	native	
Botrychium paradoxum	OPHIOGLOSSACEAE	PARADOX MOONWORT	native	
Botrychium pinnatum	OPHIOGLOSSACEAE	NORTHWESTERN MOONWORT	native	
Botrychium pumicola	OPHIOGLOSSACEAE	PUMICE MOONWORT	native	
Botrychium simplex	OPHIOGLOSSACEAE		native	
Botrychium simplex var. compositum	OPHIOGLOSSACEAE	YOSEMITE MOONWORT	native	
Botrychium tunux	OPHIOGLOSSACEAE	MOOSEWORT	native	
Botrychium yaaxudakeit	OPHIOGLOSSACEAE	GIANT MOONWORT	native	
Botrypus virginianus	OPHIOGLOSSACEAE		native	
Bouteloua aristidoides	POACEAE		native	
Bouteloua aristidoides var. aristidoides	POACEAE	NEEDLE GRAMA	native	
Bouteloua barbata	POACEAE		native	
Bouteloua barbata var. barbata	POACEAE	SIXWEEKS GRAMA	native	
Bouteloua curtipendula	POACEAE	SIDE-OATS GRAMA	native	
Bouteloua eriopoda	POACEAE	BLACK GRAMA	native	
Bouteloua gracilis	POACEAE	BLUE GRAMA	native	
Bouteloua trifida	POACEAE	THREE-AWNED GRAMA	native	
Bowlesia incana	APIACEAE		native	
Boykinia major	SAXIFRAGACEAE		native	
Boykinia occidentalis	SAXIFRAGACEAE		native	
Boykinia rotundifolia	SAXIFRAGACEAE		native	
Brachypodium distachyon	POACEAE		naturalized	
Brachypodium sylvaticum	POACEAE		naturalized	
Brandegea bigelovii	CUCURBITACEAE		native	
Brasenia schreberi	CABOMBACEAE		native	
Brassica fruticulosa	BRASSICACEAE		naturalized	
Brassica juncea	BRASSICACEAE	INDIA MUSTARD	naturalized	
Brassica napus	BRASSICACEAE	RAPESEED	naturalized	
Brassica nigra	BRASSICACEAE	BLACK MUSTARD	naturalized	
Brassica oleracea	BRASSICACEAE	CABBAGE	naturalized	
Brassica rapa	BRASSICACEAE	FIELD MUSTARD	naturalized	
Brassica tournefortii	BRASSICACEAE		naturalized	
Brickellia atractyloides	ASTERACEAE		native	
Brickellia atractyloides var. arguta	ASTERACEAE	PUNGENT BRICKELLBUSH	native	
Brickellia atractyloides var. atractyloides	ASTERACEAE	SPEARLEAF BRICKELLBUSH	native	
Brickellia atractyloides var. odontolepis	ASTERACEAE		native	
Brickellia californica	ASTERACEAE	CALIFORNIA BRICKELLBUSH	native	
Brickellia desertorum	ASTERACEAE		native	
Brickellia frutescens	ASTERACEAE		native	
Brickellia grandiflora	ASTERACEAE		native	
Brickellia greenei	ASTERACEAE		native	
Brickellia incana	ASTERACEAE		native	
Brickellia knappiana	ASTERACEAE		native	
Brickellia longifolia	ASTERACEAE		native	
Brickellia longifolia var. longifolia	ASTERACEAE		native	
Brickellia longifolia var. multiflora	ASTERACEAE		native	
Brickellia microphylla	ASTERACEAE		native	
Brickellia microphylla var. microphylla	ASTERACEAE		native	
Brickellia microphylla var. scabra	ASTERACEAE		native	
Brickellia nevinii	ASTERACEAE		native	
Brickellia oblongifolia	ASTERACEAE		native	
Brickellia oblongifolia var. linifolia	ASTERACEAE		native	
Briza maxima	POACEAE	LARGE QUAKING GRASS	naturalized	
Briza minor	POACEAE	SMALL QUAKING GRASS	naturalized	
Brodiaea appendiculata	THEMIDACEAE		native	
Brodiaea californica	THEMIDACEAE	CALIFORNIA BRODIAEA	native	
Brodiaea coronaria	THEMIDACEAE	GARLAND BRODIAEA	native	
Brodiaea elegans	THEMIDACEAE		native	
Brodiaea elegans subsp. elegans	THEMIDACEAE	HARVEST BRODIAEA	native	
Brodiaea filifolia	THEMIDACEAE	THREAD-LEAVED BRODIAEA	native	
Brodiaea insignis	THEMIDACEAE	KAWEAH BRODIAEA	native	
Brodiaea jolonensis	THEMIDACEAE	CHAPARRAL CLUSTER-LILY	native	
Brodiaea kinkiensis	THEMIDACEAE	SAN CLEMENTE ISLAND BRODIAEA	native	
Brodiaea leptandra	THEMIDACEAE	NARROW-FLOWERED CALIFORNIA BRODIAEA	native	
Brodiaea matsonii	THEMIDACEAE		native	
Brodiaea minor	THEMIDACEAE	SMALL BRODIAEA	native	
Brodiaea nana	THEMIDACEAE	DWARF BRODIAEA	native	
Brodiaea orcuttii	THEMIDACEAE	ORCUTT'S BRODIAEA	native	
Brodiaea pallida	THEMIDACEAE	CHINESE CAMP BRODIAEA	native	
Brodiaea rosea	THEMIDACEAE	INDIAN VALLEY BRODIAEA	native	
Brodiaea santarosae	THEMIDACEAE	SANTA ROSA BASALT BRODIAEA	native	
Brodiaea sierrae	THEMIDACEAE	SIERRA FOOTHILLS BRODIAEA	native	
Brodiaea stellaris	THEMIDACEAE	STAR BRODIAEA	native	
Brodiaea terrestris	THEMIDACEAE		native	
Brodiaea terrestris subsp. kernensis	THEMIDACEAE		native	
Brodiaea terrestris subsp. terrestris	THEMIDACEAE		native	
Bromus arenarius	POACEAE	AUSTRALIAN CHESS	naturalized	
Bromus arizonicus	POACEAE	ARIZONA BROME	native	
Bromus berteroanus	POACEAE	CHILEAN CHESS	naturalized	
Bromus briziformis	POACEAE	RATTLESNAKE CHESS	naturalized	
Bromus carinatus	POACEAE	CALIFORNIA BROME	native	
Bromus carinatus var. carinatus	POACEAE		native	
Bromus carinatus var. marginatus	POACEAE	MOUNTAIN BROME	native	
Bromus caroli-henrici	POACEAE		naturalized	
Bromus catharticus	POACEAE		naturalized	
Bromus catharticus var. catharticus	POACEAE	RESCUE GRASS	naturalized	
Bromus catharticus var. elatus	POACEAE	CHILEAN BROME	naturalized	
Bromus ciliatus	POACEAE	FRINGED BROME	native	
Bromus commutatus	POACEAE	MEADOW BROME	naturalized	
Bromus diandrus	POACEAE	RIPGUT GRASS	naturalized	
Bromus grandis	POACEAE	TALL BROME	native	
Bromus hallii	POACEAE	HALL'S BROME	native	
Bromus hordeaceus	POACEAE	SOFT CHESS	naturalized	
Bromus inermis	POACEAE	HUNGARIAN BROME	naturalized	
Bromus japonicus	POACEAE	JAPANESE BROME	naturalized	
Bromus laevipes	POACEAE	WOODLAND BROME	native	
Bromus madritensis	POACEAE		naturalized	
Bromus madritensis subsp. madritensis	POACEAE	MADRID BROME	naturalized	
Bromus madritensis subsp. rubens	POACEAE	RED BROME	naturalized	
Bromus maritimus	POACEAE	MARITIME BROME	native	
Bromus orcuttianus	POACEAE	ORCUTT'S BROME	native	
Bromus polyanthus	POACEAE	COLORADO BROME	native	
Bromus porteri	POACEAE	NODDING BROME	native	
Bromus pseudolaevipes	POACEAE	WOODLAND BROME	native	
Bromus racemosus	POACEAE	SMOOTH BROME	naturalized	
Bromus richardsonii	POACEAE	RICHARDSON'S BROME	native	
Bromus secalinus	POACEAE	RYE BROME	naturalized	
Bromus sitchensis	POACEAE	ALASKA BROME	native	
Bromus squarrosus	POACEAE	CORN BROME	naturalized	
Bromus sterilis	POACEAE	POVERTY BROME	naturalized	
Bromus suksdorfii	POACEAE	SUKSDORF'S BROME	native	
Bromus tectorum	POACEAE	DOWNY CHESS	naturalized	
Bromus vulgaris	POACEAE	COLUMBIA BROME	native	
Buddleja davidii	SCROPHULARIACEAE	SUMMER LILAC	naturalized	
Buddleja saligna	SCROPHULARIACEAE	FALSE OLIVE	naturalized	
Buddleja utahensis	SCROPHULARIACEAE	PANAMINT BUTTERFLY BUSH	native	
Bulbostylis capillaris	CYPERACEAE	THREAD-LEAVED BEAKSEED	native	
Bursera microphylla	BURSERACEAE	LITTLELEAF ELEPHANT TREE	native	
Cabomba caroliniana	CABOMBACEAE		naturalized	
Cacaliopsis nardosmia	ASTERACEAE		native	
Caesalpinia gilliesii	FABACEAE	BIRD-OF-PARADISE	naturalized	
Caesalpinia spinosa	FABACEAE	TARA	naturalized	
Cakile edentula	BRASSICACEAE		naturalized	
Cakile maritima	BRASSICACEAE		naturalized	
Calamagrostis bolanderi	POACEAE	BOLANDER'S REED GRASS	native	
Calamagrostis breweri	POACEAE	SHORT HAIR REED GRASS	native	
Calamagrostis canadensis	POACEAE		native	
Calamagrostis canadensis var. canadensis	POACEAE	BLUEJOINT REED GRASS	native	
Calamagrostis canadensis var. langsdorffii	POACEAE		native	
Calamagrostis foliosa	POACEAE	LEAFY REED GRASS	native	
Calamagrostis koelerioides	POACEAE	DENSE-PINE REED GRASS	native	
Calamagrostis muiriana	POACEAE	MUIR'S REED GRASS	native	
Calamagrostis nutkaensis	POACEAE	PACIFIC REED GRASS	native	
Calamagrostis ophitidis	POACEAE	SERPENTINE REED GRASS	native	
Calamagrostis purpurascens	POACEAE	PURPLE REED GRASS	native	
Calamagrostis rubescens	POACEAE	PINE REED GRASS	native	
Calamagrostis stricta	POACEAE	SLIPSTEM REED GRASS	native	
Calamagrostis stricta subsp. inexpansa	POACEAE		native	
Calamagrostis stricta subsp. stricta	POACEAE		native	
Calandrinia breweri	MONTIACEAE	BREWER'S CALANDRINIA	native	
Calendula arvensis	ASTERACEAE	FIELD-MARIGOLD	naturalized	
Calendula officinalis	ASTERACEAE	POT-MARIGOLD	naturalized	
California macrophylla	GERANIACEAE	ROUND-LEAVED FILAREE	native	
Calliandra eriophylla	FABACEAE	PINK FAIRY-DUSTER	native	
Callitriche fassettii	PLANTAGINACEAE		native	
Callitriche heterophylla	PLANTAGINACEAE		native	
Callitriche heterophylla var. bolanderi	PLANTAGINACEAE		native	
Callitriche heterophylla var. heterophylla	PLANTAGINACEAE		native	
Callitriche longipedunculata	PLANTAGINACEAE		native	
Callitriche marginata	PLANTAGINACEAE		native	
Callitriche palustris	PLANTAGINACEAE		native	
Callitriche stagnalis	PLANTAGINACEAE		naturalized	
Callitriche trochlearis	PLANTAGINACEAE		native	
Callitropsis nootkatensis	CUPRESSACEAE	ALASKA CEDAR	native	
Calocedrus decurrens	CUPRESSACEAE		native	
Calochortus albus	LILIACEAE	FAIRY-LANTERN	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 fimbriatus	LILIACEAE		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	YELLOW STAR-TULIP	native	
Calochortus nudus	LILIACEAE		native	
Calochortus obispoensis	LILIACEAE	SAN LUIS MARIPOSA LILY	native	
Calochortus palmeri	LILIACEAE		native	
Calochortus palmeri var. munzii	LILIACEAE	SAN JACINTO 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	THE CEDARS FAIRY-LANTERN	native	
Calochortus simulans	LILIACEAE	LA PANZA MARIPOSA LILY	native	
Calochortus splendens	LILIACEAE		native	
Calochortus striatus	LILIACEAE	ALKALI MARIPOSA LILY	native	
Calochortus superbus	LILIACEAE		native	
Calochortus syntrophus	LILIACEAE	CALLAHAN'S MARIPOSA LILY	native	
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 MARIPOSA LILY	native	
Calochortus venustus	LILIACEAE		native	
Calochortus vestae	LILIACEAE		native	
Calochortus weedii	LILIACEAE		native	
Calochortus weedii var. intermedius	LILIACEAE	INTERMEDIATE MARIPOSA LILY	native	
Calochortus weedii var. weedii	LILIACEAE		native	
Calochortus westonii	LILIACEAE	SHIRLEY MEADOWS STAR-TULIP	native	
Caltha leptosepala	RANUNCULACEAE		native	
Caltha palustris	RANUNCULACEAE		naturalized	
Calycadenia fremontii	ASTERACEAE		native	
Calycadenia hooveri	ASTERACEAE	HOOVER'S CALYCADENIA	native	
Calycadenia micrantha	ASTERACEAE	SMALL-FLOWERED CALYCADENIA	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 villosa	ASTERACEAE	DWARF CALYCADENIA	native	
Calycanthus occidentalis	CALYCANTHACEAE	SPICEBUSH	native	
Calycoseris parryi	ASTERACEAE	YELLOW TACK-STEM	native	
Calycoseris wrightii	ASTERACEAE	WHITE TACK-STEM	native	
Calypso bulbosa	ORCHIDACEAE		native	
Calypso bulbosa var. occidentalis	ORCHIDACEAE		native	
Calyptridium monandrum	MONTIACEAE		native	
Calyptridium monospermum	MONTIACEAE		native	
Calyptridium parryi	MONTIACEAE		native	
Calyptridium parryi var. arizonicum	MONTIACEAE		native	
Calyptridium parryi var. hesseae	MONTIACEAE	SANTA CRUZ MOUNTAINS PUSSYPAWS	native	
Calyptridium parryi var. nevadense	MONTIACEAE		native	
Calyptridium parryi var. parryi	MONTIACEAE		native	
Calyptridium pulchellum	MONTIACEAE	MARIPOSA PUSSYPAWS	native	
Calyptridium pygmaeum	MONTIACEAE	PYGMY PUSSYPAWS	native	
Calyptridium quadripetalum	MONTIACEAE	FOUR-PETALED PUSSYPAWS	native	
Calyptridium roseum	MONTIACEAE	ROSY CALYPTRIDIUM	native	
Calyptridium umbellatum	MONTIACEAE		native	
Calystegia atriplicifolia	CONVOLVULACEAE		native	
Calystegia atriplicifolia subsp. buttensis	CONVOLVULACEAE	BUTTE COUNTY MORNING-GLORY	native	
Calystegia collina	CONVOLVULACEAE		native	
Calystegia collina subsp. collina	CONVOLVULACEAE		native	
Calystegia collina subsp. oxyphylla	CONVOLVULACEAE	MOUNT SAINT HELENA MORNING-GLORY	native	
Calystegia collina subsp. tridactylosa	CONVOLVULACEAE	THREE-FINGERED MORNING-GLORY	native	
Calystegia collina subsp. venusta	CONVOLVULACEAE	SOUTH COAST RANGE MORNING-GLORY	native	
Calystegia longipes	CONVOLVULACEAE		native	
Calystegia macrostegia	CONVOLVULACEAE		native	
Calystegia macrostegia subsp. amplissima	CONVOLVULACEAE	ISLAND MORNING-GLORY	native	
Calystegia macrostegia subsp. arida	CONVOLVULACEAE		native	
Calystegia macrostegia subsp. cyclostegia	CONVOLVULACEAE		native	
Calystegia macrostegia subsp. intermedia	CONVOLVULACEAE		native	
Calystegia macrostegia subsp. macrostegia	CONVOLVULACEAE		native	
Calystegia macrostegia subsp. tenuifolia	CONVOLVULACEAE		native	
Calystegia malacophylla	CONVOLVULACEAE		native	
Calystegia malacophylla subsp. malacophylla	CONVOLVULACEAE		native	
Calystegia malacophylla subsp. pedicellata	CONVOLVULACEAE		native	
Calystegia occidentalis	CONVOLVULACEAE		native	
Calystegia occidentalis subsp. fulcrata	CONVOLVULACEAE		native	
Calystegia occidentalis subsp. occidentalis	CONVOLVULACEAE		native	
Calystegia peirsonii	CONVOLVULACEAE	PEIRSON'S MORNING-GLORY	native	
Calystegia purpurata	CONVOLVULACEAE		native	
Calystegia purpurata subsp. purpurata	CONVOLVULACEAE		native	
Calystegia purpurata subsp. saxicola	CONVOLVULACEAE	COASTAL BLUFF MORNING-GLORY	native	
Calystegia sepium	CONVOLVULACEAE	HEDGE BINDWEED	native	
Calystegia sepium subsp. binghamiae	CONVOLVULACEAE	SANTA BARBARA MORNING-GLORY	native	
Calystegia sepium subsp. limnophila	CONVOLVULACEAE		native	
Calystegia silvatica	CONVOLVULACEAE		naturalized	
Calystegia silvatica subsp. disjuncta	CONVOLVULACEAE	LARGE BINDWEED	naturalized	
Calystegia soldanella	CONVOLVULACEAE		native	
Calystegia stebbinsii	CONVOLVULACEAE	STEBBINS' MORNING-GLORY	native	
Calystegia subacaulis	CONVOLVULACEAE		native	
Calystegia subacaulis subsp. episcopalis	CONVOLVULACEAE	CAMBRIA MORNING-GLORY	native	
Calystegia subacaulis subsp. subacaulis	CONVOLVULACEAE		native	
Camassia leichtlinii	AGAVACEAE		native	
Camassia leichtlinii subsp. suksdorfii	AGAVACEAE		native	
Camassia quamash	AGAVACEAE		native	
Camassia quamash subsp. breviflora	AGAVACEAE		native	
Camelina microcarpa	BRASSICACEAE		naturalized	
Camissonia benitensis	ONAGRACEAE	SAN BENITO EVENING-PRIMROSE	native	
Camissonia campestris	ONAGRACEAE		native	
Camissonia campestris subsp. campestris	ONAGRACEAE		native	
Camissonia campestris subsp. obispoensis	ONAGRACEAE		native	
Camissonia contorta	ONAGRACEAE		native	
Camissonia integrifolia	ONAGRACEAE	KERN RIVER EVENING-PRIMROSE	native	
Camissonia kernensis	ONAGRACEAE		native	
Camissonia kernensis subsp. gilmanii	ONAGRACEAE		native	
Camissonia kernensis subsp. kernensis	ONAGRACEAE	KERN COUNTY EVENING-PRIMROSE	native	
Camissonia lacustris	ONAGRACEAE		native	
Camissonia parvula	ONAGRACEAE		native	
Camissonia pubens	ONAGRACEAE		native	
Camissonia pusilla	ONAGRACEAE		native	
Camissonia sierrae	ONAGRACEAE		native	
Camissonia sierrae subsp. alticola	ONAGRACEAE	MONO HOT SPRINGS EVENING-PRIMROSE	native	
Camissonia sierrae subsp. sierrae	ONAGRACEAE	YOSEMITE EVENING-PRIMROSE	native	
Camissonia strigulosa	ONAGRACEAE		native	
Camissoniopsis bistorta	ONAGRACEAE	CALIFORNIA SUN CUP	native	
Camissoniopsis cheiranthifolia	ONAGRACEAE	BEACH EVENING-PRIMROSE	native	
Camissoniopsis cheiranthifolia subsp. cheiranthifolia	ONAGRACEAE		native	
Camissoniopsis cheiranthifolia subsp. suffruticosa	ONAGRACEAE		native	
Camissoniopsis confusa	ONAGRACEAE		native	
Camissoniopsis guadalupensis	ONAGRACEAE		native	
Camissoniopsis guadalupensis subsp. clementina	ONAGRACEAE	SAN CLEMENTE ISLAND EVENING-PRIMROSE	native	
Camissoniopsis hardhamiae	ONAGRACEAE	HARDHAM'S EVENING-PRIMROSE	native	
Camissoniopsis hirtella	ONAGRACEAE		native	
Camissoniopsis ignota	ONAGRACEAE		native	
Camissoniopsis intermedia	ONAGRACEAE		native	
Camissoniopsis lewisii	ONAGRACEAE	LEWIS' EVENING-PRIMROSE	native	
Camissoniopsis luciae	ONAGRACEAE		native	
Camissoniopsis micrantha	ONAGRACEAE		native	
Camissoniopsis pallida	ONAGRACEAE		native	
Camissoniopsis pallida subsp. hallii	ONAGRACEAE		native	
Camissoniopsis pallida subsp. pallida	ONAGRACEAE		native	
Camissoniopsis robusta	ONAGRACEAE		native	
Campanula angustiflora	CAMPANULACEAE		native	
Campanula californica	CAMPANULACEAE	SWAMP HAREBELL	native	
Campanula exigua	CAMPANULACEAE	CHAPARRAL HAREBELL	native	
Campanula griffinii	CAMPANULACEAE		native	
Campanula rotundifolia	CAMPANULACEAE		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	WHITE PYGMY-POPPY	native	
Cannabis sativa	CANNABACEAE	MARIJUANA	naturalized	
Capsella bursa-pastoris	BRASSICACEAE		naturalized	
Cardamine angulata	BRASSICACEAE		native	
Cardamine bellidifolia	BRASSICACEAE		native	
Cardamine breweri	BRASSICACEAE		native	
Cardamine californica	BRASSICACEAE	TOOTH WORT	native	
Cardamine cordifolia	BRASSICACEAE		native	
Cardamine hirsuta	BRASSICACEAE		naturalized	
Cardamine nuttallii	BRASSICACEAE		native	
Cardamine occidentalis	BRASSICACEAE		native	
Cardamine oligosperma	BRASSICACEAE		native	
Cardamine pachystigma	BRASSICACEAE		native	
Cardamine pensylvanica	BRASSICACEAE		native	
Cardionema ramosissimum	CARYOPHYLLACEAE		native	
Carduus acanthoides	ASTERACEAE		naturalized	
Carduus acanthoides subsp. acanthoides	ASTERACEAE	PLUMELESS THISTLE	naturalized	
Carduus nutans	ASTERACEAE	MUSK THISTLE	naturalized	
Carduus pycnocephalus	ASTERACEAE		naturalized	
Carduus pycnocephalus subsp. pycnocephalus	ASTERACEAE	ITALIAN THISTLE	naturalized	
Carduus tenuiflorus	ASTERACEAE		naturalized	
Carex abrupta	CYPERACEAE	ABRUPT-BEAKED SEDGE	native	
Carex albonigra	CYPERACEAE	BLACK-AND-WHITE SEDGE	native	
Carex alma	CYPERACEAE	STURDY SEDGE	native	
Carex amplifolia	CYPERACEAE	BIG-LEAF SEDGE	native	
Carex angustata	CYPERACEAE	NARROW-LEAVED SEDGE	native	
Carex aquatilis	CYPERACEAE		native	
Carex aquatilis var. aquatilis	CYPERACEAE	WATER SEDGE	native	
Carex aquatilis var. dives	CYPERACEAE	SITKA SEDGE	native	
Carex arcta	CYPERACEAE	NORTHERN CLUSTERED SEDGE	native	
Carex atherodes	CYPERACEAE	WHEAT SEDGE	native	
Carex athrostachya	CYPERACEAE	LONG-BRACTED SEDGE	native	
Carex aurea	CYPERACEAE	GOLDEN SEDGE	native	
Carex barbarae	CYPERACEAE	SANTA BARBARA SEDGE	native	
Carex bolanderi	CYPERACEAE	BOLANDER'S SEDGE	native	
Carex brainerdii	CYPERACEAE	BRAINERD'S SEDGE	native	
Carex brevicaulis	CYPERACEAE	SHORT-STEMMED SEDGE	native	
Carex breweri	CYPERACEAE	BREWER'S SEDGE	native	
Carex buxbaumii	CYPERACEAE	BUXBAUM'S SEDGE	native	
Carex californica	CYPERACEAE	CALIFORNIA SEDGE	native	
Carex canescens	CYPERACEAE		native	
Carex canescens subsp. canescens	CYPERACEAE	SILVERY SEDGE	native	
Carex capitata	CYPERACEAE	CAPITATE SEDGE	native	
Carex comosa	CYPERACEAE	BRISTLY SEDGE	native	
Carex concinnoides	CYPERACEAE	NORTHWESTERN SEDGE	native	
Carex congdonii	CYPERACEAE	CONGDON'S SEDGE	native	
Carex cusickii	CYPERACEAE	CUSICK'S SEDGE	native	
Carex davyi	CYPERACEAE	DAVY'S SEDGE	native	
Carex deflexa	CYPERACEAE		native	
Carex deflexa var. boottii	CYPERACEAE	MOUNTAIN MAT SEDGE	native	
Carex densa	CYPERACEAE	DENSE SEDGE	native	
Carex diandra	CYPERACEAE	LESSER TUSSOCK SEDGE	native	
Carex disperma	CYPERACEAE	TWO-SEEDED SEDGE	native	
Carex divulsa	CYPERACEAE		naturalized	
Carex divulsa subsp. divulsa	CYPERACEAE	GRAY SEDGE	naturalized	
Carex douglasii	CYPERACEAE	DOUGLAS' SEDGE	native	
Carex duriuscula	CYPERACEAE	SPIKELETRUSH SEDGE	native	
Carex echinata	CYPERACEAE		native	
Carex echinata subsp. echinata	CYPERACEAE	STAR SEDGE	native	
Carex echinata subsp. phyllomanica	CYPERACEAE	COASTAL STAR SEDGE	native	
Carex exsiccata	CYPERACEAE	WESTERN INFLATED SEDGE	native	
Carex feta	CYPERACEAE	GREEN-SHEATHED SEDGE	native	
Carex filifolia	CYPERACEAE		native	
Carex filifolia var. erostrata	CYPERACEAE	SAGEBRUSH SEDGE	native	
Carex filifolia var. filifolia	CYPERACEAE	THREAD-LEAVED SEDGE	native	
Carex fissuricola	CYPERACEAE	CLEFT SEDGE	native	
Carex fracta	CYPERACEAE	FRAGILE-SHEATHED SEDGE	native	
Carex geyeri	CYPERACEAE	GEYER'S SEDGE	native	
Carex globosa	CYPERACEAE	ROUND-FRUITED SEDGE	native	
Carex gracilior	CYPERACEAE	SLENDER SEDGE	native	
Carex gynodynama	CYPERACEAE	WONDER-WOMAN SEDGE	native	
Carex halliana	CYPERACEAE	OREGON SEDGE	native	
Carex harfordii	CYPERACEAE	MONTEREY SEDGE	native	
Carex hassei	CYPERACEAE	HASSE'S SEDGE	native	
Carex haydeniana	CYPERACEAE	HAYDEN'S SEDGE	native	
Carex helleri	CYPERACEAE	HELLER'S SEDGE	native	
Carex hendersonii	CYPERACEAE	HENDERSON'S SEDGE	native	
Carex heteroneura	CYPERACEAE	SMOOTH-FRUITED SEDGE	native	
Carex hirtissima	CYPERACEAE	FUZZY SEDGE	native	
Carex hoodii	CYPERACEAE	HOOD'S SEDGE	native	
Carex hystericina	CYPERACEAE	PORCUPINE SEDGE	native	
Carex idahoa	CYPERACEAE	IDAHO SEDGE	native	
Carex illota	CYPERACEAE	SHEEP SEDGE	native	
Carex incurviformis	CYPERACEAE	INCURVED SEDGE	native	
Carex infirminervia	CYPERACEAE	WEAKLY VEINED SEDGE	native	
Carex inops	CYPERACEAE		native	
Carex inops subsp. inops	CYPERACEAE	LONG-RHIZOMED SEDGE	native	
Carex integra	CYPERACEAE	SMOOTH-BEAKED SEDGE	native	
Carex interior	CYPERACEAE	INLAND SEDGE	native	
Carex inversa	CYPERACEAE	KNOB SEDGE	naturalized	
Carex jonesii	CYPERACEAE	JONES' SEDGE	native	
Carex klamathensis	CYPERACEAE	KLAMATH SEDGE	native	
Carex laeviculmis	CYPERACEAE	SMOOTH-STEMMED SEDGE	native	
Carex lasiocarpa	CYPERACEAE	WOOLLY-FRUITED SEDGE	native	
Carex lemmonii	CYPERACEAE	LEMMON'S SEDGE	native	
Carex lenticularis	CYPERACEAE		native	
Carex lenticularis var. impressa	CYPERACEAE	TARN SEDGE	native	
Carex lenticularis var. limnophila	CYPERACEAE	LAGOON SEDGE	native	
Carex lenticularis var. lipocarpa	CYPERACEAE	LAKESHORE SEDGE	native	
Carex leporina	CYPERACEAE	OVAL SEDGE	native	
Carex leporinella	CYPERACEAE	BOG HARE SEDGE	native	
Carex leptalea	CYPERACEAE	BRISTLE-STALKED SEDGE	native	
Carex leptopoda	CYPERACEAE	SLENDER-FOOTED SEDGE	native	
Carex limosa	CYPERACEAE	MUD SEDGE	native	
Carex longii	CYPERACEAE	GREEN-AND-WHITE SEDGE	naturalized	
Carex luzulifolia	CYPERACEAE	LITTLE-LEAVED SEDGE	native	
Carex luzulina	CYPERACEAE	WOODRUSH SEDGE	native	
Carex lyngbyei	CYPERACEAE	LYNGBYE'S SEDGE	native	
Carex mariposana	CYPERACEAE	MARIPOSA SEDGE	native	
Carex mendocinensis	CYPERACEAE	MENDOCINO SEDGE	native	
Carex mertensii	CYPERACEAE	MERTENS' SEDGE	native	
Carex microptera	CYPERACEAE	SMALL-WINGED SEDGE	native	
Carex multicaulis	CYPERACEAE	STICK SEDGE	native	
Carex multicostata	CYPERACEAE	MANY-RIBBED SEDGE	native	
Carex nebrascensis	CYPERACEAE	NEBRASKA SEDGE	native	
Carex nervina	CYPERACEAE	SIERRA SEDGE	native	
Carex neurophora	CYPERACEAE	ALPINE NERVED SEDGE	native	
Carex nigricans	CYPERACEAE	BLACK ALPINE SEDGE	native	
Carex nudata	CYPERACEAE	TORRENT SEDGE	native	
Carex obispoensis	CYPERACEAE	SAN LUIS OBISPO SEDGE	native	
Carex obnupta	CYPERACEAE	SLOUGH SEDGE	native	
Carex occidentalis	CYPERACEAE	WESTERN SEDGE	native	
Carex pachystachya	CYPERACEAE	STARRY BROOMSEDGE	native	
Carex pansa	CYPERACEAE	SANDDUNE SEDGE	native	
Carex pellita	CYPERACEAE	WOOLLY SEDGE	native	
Carex pendula	CYPERACEAE	PENDULOUS SEDGE	naturalized	
Carex petasata	CYPERACEAE	LIDDON'S SEDGE	native	
Carex phaeocephala	CYPERACEAE	ALPINE HARE SEDGE	native	
Carex praeceptorum	CYPERACEAE	TEACHER SEDGE	native	
Carex praegracilis	CYPERACEAE	FREEWAY SEDGE	native	
Carex praticola	CYPERACEAE	NORTHERN MEADOW SEDGE	native	
Carex preslii	CYPERACEAE	PRESL'S SEDGE	native	
Carex proposita	CYPERACEAE	POTATO CHIP SEDGE	native	
Carex raynoldsii	CYPERACEAE	RAYNOLD'S SEDGE	native	
Carex rossii	CYPERACEAE	ROSS' SEDGE	native	
Carex saliniformis	CYPERACEAE	DECEIVING SEDGE	native	
Carex sartwelliana	CYPERACEAE	YOSEMITE SEDGE	native	
Carex scabriuscula	CYPERACEAE	SISKIYOU SEDGE	native	
Carex schottii	CYPERACEAE	SCHOTT'S SEDGE	native	
Carex scirpoidea	CYPERACEAE		native	
Carex scirpoidea subsp. pseudoscirpoidea	CYPERACEAE	WESTERN SINGLE-SPIKED SEDGE	native	
Carex scoparia	CYPERACEAE		native	
Carex scoparia var. scoparia	CYPERACEAE	POINTED BROOMSEDGE	native	
Carex scopulorum	CYPERACEAE		native	
Carex scopulorum var. bracteosa	CYPERACEAE	MOUNTAIN SEDGE	native	
Carex senta	CYPERACEAE	WESTERN ROUGH SEDGE	native	
Carex serpenticola	CYPERACEAE	SERPENTINE SEDGE	native	
Carex serratodens	CYPERACEAE	SAW-TOOTHED SEDGE	native	
Carex sheldonii	CYPERACEAE	SHELDON'S SEDGE	native	
Carex simulata	CYPERACEAE	ANALOG SEDGE	native	
Carex specifica	CYPERACEAE	NARROW-FRUITED SEDGE	native	
Carex spectabilis	CYPERACEAE	SHOWY SEDGE	native	
Carex spissa	CYPERACEAE	SAN DIEGO SEDGE	native	
Carex stevenii	CYPERACEAE	STEVEN'S SEDGE	native	
Carex stipata	CYPERACEAE		native	
Carex stipata var. stipata	CYPERACEAE	AWL-FRUITED SEDGE	native	
Carex straminiformis	CYPERACEAE	MOUNT SHASTA SEDGE	native	
Carex subbracteata	CYPERACEAE	SMALL-BRACTED SEDGE	native	
Carex subfusca	CYPERACEAE	PALE BROOMSEDGE	native	
Carex subnigricans	CYPERACEAE	DARK MOUNTAIN SEDGE	native	
Carex tahoensis	CYPERACEAE	TAHOE SEDGE	native	
Carex texensis	CYPERACEAE	TEXAS SEDGE	naturalized	
Carex tiogana	CYPERACEAE	TIOGA PASS SEDGE	native	
Carex tompkinsii	CYPERACEAE	TOMPKINS' SEDGE	native	
Carex triquetra	CYPERACEAE	TRIGONOUS SEDGE	native	
Carex tumulicola	CYPERACEAE	FOOTHILL SEDGE	native	
Carex unilateralis	CYPERACEAE	ONE-SIDED SEDGE	native	
Carex utriculata	CYPERACEAE	SOUTHERN BEAKED SEDGE	native	
Carex vallicola	CYPERACEAE	WESTERN VALLEY SEDGE	native	
Carex vernacula	CYPERACEAE	FOETID SEDGE	native	
Carex vesicaria	CYPERACEAE	INFLATED SEDGE	native	
Carex viridula	CYPERACEAE		native	
Carex viridula subsp. viridula	CYPERACEAE	GREEN YELLOW SEDGE	native	
Carex vulpinoidea	CYPERACEAE	BROWN FOX SEDGE	naturalized	
Carex whitneyi	CYPERACEAE	WHITNEY'S SEDGE	native	
Carlowrightia arizonica	ACANTHACEAE	ARIZONA WRIGHTWORT	native	
Carlquistia muirii	ASTERACEAE	MUIR'S TARPLANT	native	
Carnegiea gigantea	CACTACEAE		native	
Carpenteria californica	HYDRANGEACEAE	TREE-ANEMONE	native	
Carpobrotus chilensis	AIZOACEAE	SEA FIG	naturalized	
Carpobrotus edulis	AIZOACEAE	FREEWAY ICEPLANT	naturalized	
Carsonia sparsifolia	CLEOMACEAE		native	
Carthamus creticus	ASTERACEAE	SMOOTH DISTAFF THISTLE	naturalized	
Carthamus lanatus	ASTERACEAE	WOOLLY DISTAFF THISTLE	naturalized	
Carya illinoinensis	JUGLANDACEAE	PECAN	naturalized	
Cascadia nuttallii	SAXIFRAGACEAE		native	
Cassiope mertensiana	ERICACEAE	WHITE HEATHER	native	
Castela emoryi	SIMAROUBACEAE	EMORY'S CRUCIFIXION-THORN	native	
Castilleja affinis	OROBANCHACEAE		native	
Castilleja affinis subsp. affinis	OROBANCHACEAE		native	
Castilleja affinis subsp. litoralis	OROBANCHACEAE	OREGON COAST PAINTBRUSH	native	
Castilleja affinis subsp. neglecta	OROBANCHACEAE	TIBURON PAINTBRUSH	native	
Castilleja ambigua	OROBANCHACEAE	JOHNNY-NIP	native	
Castilleja ambigua subsp. ambigua	OROBANCHACEAE		native	
Castilleja ambigua subsp. humboldtiensis	OROBANCHACEAE	HUMBOLDT BAY OWL'S-CLOVER	native	
Castilleja ambigua subsp. insalutata	OROBANCHACEAE		native	
Castilleja ambigua var. meadii	OROBANCHACEAE		native	acceptance uncertain
Castilleja applegatei	OROBANCHACEAE		native	
Castilleja applegatei subsp. disticha	OROBANCHACEAE		native	
Castilleja applegatei subsp. martinii	OROBANCHACEAE		native	
Castilleja applegatei subsp. pallida	OROBANCHACEAE		native	
Castilleja applegatei subsp. pinetorum	OROBANCHACEAE		native	
Castilleja arachnoidea	OROBANCHACEAE		native	
Castilleja attenuata	OROBANCHACEAE	VALLEY TASSELS	native	
Castilleja brevilobata	OROBANCHACEAE	SHORT-LOBED PAINTBRUSH	native	
Castilleja brevistyla	OROBANCHACEAE		native	
Castilleja campestris	OROBANCHACEAE		native	
Castilleja campestris subsp. campestris	OROBANCHACEAE		native	
Castilleja campestris subsp. succulenta	OROBANCHACEAE	SUCCULENT OWL'S-CLOVER	native	
Castilleja chromosa	OROBANCHACEAE	DESERT PAINTBRUSH	native	
Castilleja cinerea	OROBANCHACEAE	ASH-GRAY PAINTBRUSH	native	
Castilleja densiflora	OROBANCHACEAE		native	
Castilleja densiflora subsp. densiflora	OROBANCHACEAE		native	
Castilleja densiflora subsp. gracilis	OROBANCHACEAE		native	
Castilleja densiflora subsp. obispoensis	OROBANCHACEAE	SAN LUIS OBISPO OWL'S-CLOVER	native	
Castilleja exserta	OROBANCHACEAE	PURPLE OWL'S-CLOVER	native	
Castilleja exserta subsp. exserta	OROBANCHACEAE		native	
Castilleja exserta subsp. latifolia	OROBANCHACEAE		native	
Castilleja exserta subsp. venusta	OROBANCHACEAE		native	
Castilleja foliolosa	OROBANCHACEAE	WOOLLY PAINTBRUSH	native	
Castilleja gleasoni	OROBANCHACEAE	MOUNT GLEASON PAINTBRUSH	native	
Castilleja grisea	OROBANCHACEAE	SAN CLEMENTE ISLAND PAINTBRUSH	native	
Castilleja hololeuca	OROBANCHACEAE	ISLAND PAINTBRUSH	native	
Castilleja lacera	OROBANCHACEAE		native	
Castilleja lasiorhyncha	OROBANCHACEAE	SAN BERNARDINO MOUNTAINS OWL'S-CLOVER	native	
Castilleja latifolia	OROBANCHACEAE	MONTEREY COAST PAINTBRUSH	native	
Castilleja lemmonii	OROBANCHACEAE		native	
Castilleja linariifolia	OROBANCHACEAE		native	
Castilleja lineariloba	OROBANCHACEAE		native	
Castilleja mendocinensis	OROBANCHACEAE	MENDOCINO COAST PAINTBRUSH	native	
Castilleja miniata	OROBANCHACEAE		native	
Castilleja miniata subsp. elata	OROBANCHACEAE	SISKIYOU PAINTBRUSH	native	
Castilleja miniata subsp. miniata	OROBANCHACEAE		native	
Castilleja minor	OROBANCHACEAE		native	
Castilleja minor subsp. minor	OROBANCHACEAE		native	
Castilleja minor subsp. spiralis	OROBANCHACEAE		native	
Castilleja mollis	OROBANCHACEAE	SOFT-LEAVED PAINTBRUSH	native	
Castilleja montigena	OROBANCHACEAE	HECKARD'S PAINTBRUSH	native	
Castilleja nana	OROBANCHACEAE		native	
Castilleja peirsonii	OROBANCHACEAE		native	
Castilleja pilosa	OROBANCHACEAE		native	
Castilleja plagiotoma	OROBANCHACEAE	MOJAVE PAINTBRUSH	native	
Castilleja praeterita	OROBANCHACEAE		native	
Castilleja pruinosa	OROBANCHACEAE		native	
Castilleja rubicundula	OROBANCHACEAE	CREAM SACS	native	
Castilleja rubicundula subsp. lithospermoides	OROBANCHACEAE		native	
Castilleja rubicundula subsp. rubicundula	OROBANCHACEAE	PINK CREAMSACS	native	
Castilleja schizotricha	OROBANCHACEAE	SPLIT-HAIR PAINTBRUSH	native	
Castilleja subinclusa	OROBANCHACEAE		native	
Castilleja subinclusa subsp. franciscana	OROBANCHACEAE		native	
Castilleja subinclusa subsp. subinclusa	OROBANCHACEAE		native	
Castilleja tenuis	OROBANCHACEAE		native	
Castilleja wightii	OROBANCHACEAE		native	
Catalpa bignonioides	BIGNONIACEAE		naturalized	
Catalpa speciosa	BIGNONIACEAE		naturalized	
Caulanthus amplexicaulis	BRASSICACEAE		native	
Caulanthus anceps	BRASSICACEAE		native	
Caulanthus californicus	BRASSICACEAE	CALIFORNIA JEWELFLOWER	native	
Caulanthus cooperi	BRASSICACEAE		native	
Caulanthus coulteri	BRASSICACEAE		native	
Caulanthus coulteri var. coulteri	BRASSICACEAE		native	
Caulanthus crassicaulis	BRASSICACEAE	THICK-STEM WILD CABBAGE	native	
Caulanthus flavescens	BRASSICACEAE		native	
Caulanthus glaucus	BRASSICACEAE		native	
Caulanthus hallii	BRASSICACEAE		native	
Caulanthus heterophyllus	BRASSICACEAE		native	
Caulanthus inflatus	BRASSICACEAE	DESERT CANDLE	native	
Caulanthus lasiophyllus	BRASSICACEAE	CALIFORNIA MUSTARD	native	
Caulanthus lemmonii	BRASSICACEAE	LEMMON'S JEWELFLOWER	native	
Caulanthus major	BRASSICACEAE		native	
Caulanthus pilosus	BRASSICACEAE	CHOCOLATE DROPS	native	
Caulanthus simulans	BRASSICACEAE	PAYSON'S JEWELFLOWER	native	
Ceanothus arboreus	RHAMNACEAE	FELTLEAF CEANOTHUS	native	
Ceanothus arcuatus	RHAMNACEAE	ARCHING CEANOTHUS	native	
Ceanothus confusus	RHAMNACEAE	RINCON RIDGE CEANOTHUS	native	
Ceanothus cordulatus	RHAMNACEAE	MOUNTAIN WHITETHORN	native	
Ceanothus crassifolius	RHAMNACEAE	HOARYLEAF CEANOTHUS	native	
Ceanothus crassifolius var. crassifolius	RHAMNACEAE		native	
Ceanothus crassifolius var. planus	RHAMNACEAE		native	
Ceanothus cuneatus	RHAMNACEAE		native	
Ceanothus cuneatus var. cuneatus	RHAMNACEAE	BUCKBRUSH	native	
Ceanothus cuneatus var. fascicularis	RHAMNACEAE	LOMPOC CEANOTHUS	native	
Ceanothus cuneatus var. ramulosus	RHAMNACEAE		native	
Ceanothus cyaneus	RHAMNACEAE	LAKESIDE CEANOTHUS	native	
Ceanothus dentatus	RHAMNACEAE		native	
Ceanothus divergens	RHAMNACEAE	CALISTOGA CEANOTHUS	native	
Ceanothus diversifolius	RHAMNACEAE	PINE MAT	native	
Ceanothus ferrisiae	RHAMNACEAE	COYOTE CEANOTHUS	native	
Ceanothus foliosus	RHAMNACEAE		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 CEANOTHUS	native	
Ceanothus gloriosus	RHAMNACEAE		native	
Ceanothus gloriosus var. exaltatus	RHAMNACEAE	GLORY BRUSH	native	
Ceanothus gloriosus var. gloriosus	RHAMNACEAE	POINT REYES CEANOTHUS	native	
Ceanothus gloriosus var. porrectus	RHAMNACEAE	MOUNT VISION CEANOTHUS	native	
Ceanothus hearstiorum	RHAMNACEAE	HEARSTS' CEANOTHUS	native	
Ceanothus impressus	RHAMNACEAE		native	
Ceanothus impressus var. impressus	RHAMNACEAE		native	
Ceanothus impressus var. nipomensis	RHAMNACEAE		native	
Ceanothus incanus	RHAMNACEAE	COAST WHITETHORN	native	
Ceanothus integerrimus	RHAMNACEAE	DEER BRUSH	native	
Ceanothus integerrimus var. integerrimus	RHAMNACEAE		native	
Ceanothus integerrimus var. macrothyrsus	RHAMNACEAE		native	
Ceanothus jepsonii	RHAMNACEAE	MUSK BRUSH	native	
Ceanothus lemmonii	RHAMNACEAE		native	
Ceanothus leucodermis	RHAMNACEAE	CHAPARRAL WHITETHORN	native	
Ceanothus maritimus	RHAMNACEAE	MARITIME CEANOTHUS	native	
Ceanothus masonii	RHAMNACEAE	MASON'S CEANOTHUS	native	
Ceanothus megacarpus	RHAMNACEAE		native	
Ceanothus megacarpus var. insularis	RHAMNACEAE	ISLAND CEANOTHUS	native	
Ceanothus megacarpus var. megacarpus	RHAMNACEAE	BIGPOD CEANOTHUS	native	
Ceanothus oliganthus	RHAMNACEAE		native	
Ceanothus oliganthus var. oliganthus	RHAMNACEAE		native	
Ceanothus oliganthus var. orcuttii	RHAMNACEAE		native	
Ceanothus oliganthus var. sorediatus	RHAMNACEAE	JIM BRUSH	native	
Ceanothus ophiochilus	RHAMNACEAE	VAIL LAKE CEANOTHUS	native	
Ceanothus otayensis	RHAMNACEAE	OTAY MOUNTAIN CEANOTHUS	native	
Ceanothus palmeri	RHAMNACEAE	PALMER CEANOTHUS	native	
Ceanothus papillosus	RHAMNACEAE	WARTLEAF CEANOTHUS	native	
Ceanothus papillosus var. papillosus	RHAMNACEAE		native	
Ceanothus parryi	RHAMNACEAE		native	
Ceanothus parvifolius	RHAMNACEAE		native	
Ceanothus perplexans	RHAMNACEAE		native	
Ceanothus pinetorum	RHAMNACEAE	KERN CEANOTHUS	native	
Ceanothus prostratus	RHAMNACEAE		native	
Ceanothus prostratus var. occidentalis	RHAMNACEAE		native	
Ceanothus prostratus var. prostratus	RHAMNACEAE	MAHALA MAT	native	
Ceanothus pumilus	RHAMNACEAE	SISKIYOU MAT	native	
Ceanothus purpureus	RHAMNACEAE	HOLLY-LEAVED CEANOTHUS	native	
Ceanothus rigidus	RHAMNACEAE		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		native	
Ceanothus thyrsiflorus var. griseus	RHAMNACEAE	CARMEL CEANOTHUS	native	
Ceanothus thyrsiflorus var. thyrsiflorus	RHAMNACEAE	BLUE BLOSSOM	native	
Ceanothus tomentosus	RHAMNACEAE		native	
Ceanothus velutinus	RHAMNACEAE		native	
Ceanothus verrucosus	RHAMNACEAE	WART-STEMMED CEANOTHUS	native	
Ceanothus vestitus	RHAMNACEAE	MOJAVE CEANOTHUS	native	
Cedronella canariensis	LAMIACEAE		naturalized	acceptance uncertain
Celtis australis	CANNABACEAE	NETTLE-TREE	naturalized	
Celtis reticulata	CANNABACEAE	NETLEAF HACKBERRY	native	
Celtis sinensis	CANNABACEAE	CHINESE HACKBERRY	naturalized	
Cenchrus echinatus	POACEAE	SOUTHERN SANDBUR	naturalized	
Cenchrus incertus	POACEAE	COMMON SANDBUR	naturalized	
Cenchrus longispinus	POACEAE	MAT SANDBUR	naturalized	
Centaurea benedicta	ASTERACEAE	BLESSED THISTLE	naturalized	
Centaurea biebersteinii	ASTERACEAE		naturalized	acceptance uncertain
Centaurea calcitrapa	ASTERACEAE	PURPLE STAR-THISTLE	naturalized	
Centaurea cineraria	ASTERACEAE	DUSTY MILLER	naturalized	
Centaurea cyanus	ASTERACEAE	CORNFLOWER	naturalized	
Centaurea diffusa	ASTERACEAE	DIFFUSE KNAPWEED	naturalized	
Centaurea diluta	ASTERACEAE	NORTH AFRICAN KNAPWEED	naturalized	
Centaurea iberica	ASTERACEAE	IBERIAN STAR-THISTLE	naturalized	
Centaurea jacea	ASTERACEAE		naturalized	
Centaurea jacea subsp. jacea	ASTERACEAE	BROWN KNAPWEED	naturalized	
Centaurea jacea subsp. nigra	ASTERACEAE	BLACK KNAPWEED	naturalized	
Centaurea jacea subsp. pratensis	ASTERACEAE		naturalized	
Centaurea melitensis	ASTERACEAE	TOCALOTE	naturalized	
Centaurea pouzinii	ASTERACEAE	POUZIN'S STAR-THISTLE	naturalized	
Centaurea solstitialis	ASTERACEAE	YELLOW STAR-THISTLE	naturalized	
Centaurea stoebe	ASTERACEAE		naturalized	
Centaurea stoebe subsp. micranthos	ASTERACEAE	SPOTTED KNAPWEED	naturalized	
Centaurea sulphurea	ASTERACEAE	SICILIAN STAR-THISTLE	naturalized	
Centaurea virgata	ASTERACEAE		naturalized	
Centaurea virgata subsp. squarrosa	ASTERACEAE		naturalized	
Centaurium erythraea	GENTIANACEAE	EUROPEAN CENTAURY	naturalized	
Centaurium tenuiflorum	GENTIANACEAE	SLENDER CENTAURY	naturalized	
Centranthus ruber	VALERIANACEAE	RED VALERIAN	naturalized	
Centromadia fitchii	ASTERACEAE		native	
Centromadia parryi	ASTERACEAE		native	
Centromadia parryi subsp. australis	ASTERACEAE	SOUTHERN TARPLANT	native	
Centromadia parryi subsp. congdonii	ASTERACEAE	CONGDON'S TARPLANT	native	
Centromadia parryi subsp. parryi	ASTERACEAE	PAPPOSE TARPLANT	native	
Centromadia parryi subsp. rudis	ASTERACEAE	PARRY'S ROUGH TARPLANT	native	
Centromadia pungens	ASTERACEAE		native	
Centromadia pungens subsp. laevis	ASTERACEAE	SMOOTH TARPLANT	native	
Centromadia pungens subsp. pungens	ASTERACEAE	COMMON SPIKEWEED	native	
Centrostegia thurberi	POLYGONACEAE	RED TRIANGLES	native	
Cephalanthera austiniae	ORCHIDACEAE	PHANTOM ORCHID	native	
Cephalanthus occidentalis	RUBIACEAE	CALIFORNIA BUTTON WILLOW	native	
Cerastium arvense	CARYOPHYLLACEAE		native	
Cerastium arvense subsp. strictum	CARYOPHYLLACEAE	FIELD MOUSE-EAR CHICKWEED	native	
Cerastium beeringianum	CARYOPHYLLACEAE	BERING MOUSE-EAR CHICKWEED	native	
Cerastium dichotomum	CARYOPHYLLACEAE	FORKED MOUSE-EAR CHICKWEED	naturalized	
Cerastium diffusum	CARYOPHYLLACEAE	DARK GREEN MOUSE-EAR CHICKWEED	naturalized	
Cerastium fontanum	CARYOPHYLLACEAE		naturalized	
Cerastium fontanum subsp. vulgare	CARYOPHYLLACEAE	COMMON MOUSE-EAR CHICKWEED	naturalized	
Cerastium glomeratum	CARYOPHYLLACEAE	STICKY MOUSE-EAR CHICKWEED	naturalized	
Cerastium viride	CARYOPHYLLACEAE	WESTERN FIELD MOUSE-EAR CHICKWEED	native	
Ceratonia siliqua	FABACEAE		naturalized	
Ceratophyllum demersum	CERATOPHYLLACEAE		native	
Cercis occidentalis	FABACEAE	WESTERN REDBUD	native	
Cercocarpus betuloides	ROSACEAE		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		native	
Cercocarpus ledifolius	ROSACEAE	CURL-LEAF MOUNTAIN-MAHOGANY	native	
Cercocarpus ledifolius var. intermontanus	ROSACEAE		native	
Cercocarpus ledifolius var. intricatus	ROSACEAE		native	
Cercocarpus ledifolius var. ledifolius	ROSACEAE		native	
Cercocarpus minutiflorus	ROSACEAE		native	
Cercocarpus traskiae	ROSACEAE	CATALINA ISLAND MOUNTAIN-MAHOGANY	native	
Cestrum nocturnum	SOLANACEAE		naturalized	
Chaenactis alpigena	ASTERACEAE	SHARSMITH PINCUSHION	native	
Chaenactis artemisiifolia	ASTERACEAE	WHITE PINCUSHION	native	
Chaenactis carphoclinia	ASTERACEAE	PEBBLE PINCUSHION	native	
Chaenactis carphoclinia var. carphoclinia	ASTERACEAE		native	
Chaenactis carphoclinia var. peirsonii	ASTERACEAE	PEIRSON'S PINCUSHION	native	
Chaenactis douglasii	ASTERACEAE		native	
Chaenactis douglasii var. alpina	ASTERACEAE	ALPINE DUSTY-MAIDENS	native	
Chaenactis douglasii var. douglasii	ASTERACEAE	DUSTY-MAIDENS	native	
Chaenactis fremontii	ASTERACEAE	FREMONT PINCUSHION	native	
Chaenactis glabriuscula	ASTERACEAE	YELLOW PINCUSHION	native	
Chaenactis glabriuscula var. glabriuscula	ASTERACEAE		native	
Chaenactis glabriuscula var. heterocarpha	ASTERACEAE	INNER COAST RANGE PINCUSHION	native	
Chaenactis glabriuscula var. lanosa	ASTERACEAE	SAND BUTTONS	native	
Chaenactis glabriuscula var. megacephala	ASTERACEAE		native	
Chaenactis glabriuscula var. orcuttiana	ASTERACEAE	ORCUTT'S PINCUSHION	native	
Chaenactis macrantha	ASTERACEAE	MOJAVE PINCUSHION	native	
Chaenactis nevadensis	ASTERACEAE	SIERRA PINCUSHION	native	
Chaenactis parishii	ASTERACEAE	PARISH'S CHAENACTIS	native	
Chaenactis santolinoides	ASTERACEAE	SANTOLINA PINCUSHION	native	
Chaenactis stevioides	ASTERACEAE	DESERT PINCUSHION	native	
Chaenactis suffrutescens	ASTERACEAE	SHASTA CHAENACTIS	native	
Chaenactis xantiana	ASTERACEAE	FLESHY PINCUSHION	native	
Chaetadelpha wheeleri	ASTERACEAE	WHEELER'S DUNE-BROOM	native	
Chaetopappa ericoides	ASTERACEAE	ROSE-HEATH	native	
Chamaebatia australis	ROSACEAE	SOUTHERN MOUNTAIN MISERY	native	
Chamaebatia foliolosa	ROSACEAE	MOUNTAIN MISERY	native	
Chamaebatiaria millefolium	ROSACEAE		native	
Chamaecyparis lawsoniana	CUPRESSACEAE	LAWSON CYPRESS	native	
Chamaecytisus proliferus	FABACEAE		naturalized	
Chamaemelum fuscatum	ASTERACEAE	CHAMOMILE	naturalized	
Chamaesaracha coronopus	SOLANACEAE		native	
Chamaesaracha nana	SOLANACEAE		native	
Chamerion angustifolium	ONAGRACEAE		native	
Chamerion angustifolium subsp. circumvagum	ONAGRACEAE	FIREWEED	native	
Chamerion latifolium	ONAGRACEAE		native	
Chasmanthe floribunda	IRIDACEAE		naturalized	
Cheilanthes clevelandii	PTERIDACEAE	CLEVELAND'S LIP FERN	native	
Cheilanthes cooperae	PTERIDACEAE	COOPER'S LIP FERN	native	
Cheilanthes covillei	PTERIDACEAE	COVILLE'S LIP FERN	native	
Cheilanthes feei	PTERIDACEAE	SLENDER LIP FERN	native	
Cheilanthes gracillima	PTERIDACEAE	LACE LIP FERN	native	
Cheilanthes intertexta	PTERIDACEAE	COASTAL LIP FERN	native	
Cheilanthes newberryi	PTERIDACEAE	NEWBERRY'S LIP FERN	native	
Cheilanthes parryi	PTERIDACEAE	PARRY'S LIP FERN	native	
Cheilanthes viscida	PTERIDACEAE	VISCID LACE FERN	native	
Cheilanthes wootonii	PTERIDACEAE	WOOTON'S LIP FERN	native	
Chenopodium album	CHENOPODIACEAE	LAMB'S QUARTERS	naturalized	
Chenopodium atrovirens	CHENOPODIACEAE		native	
Chenopodium berlandieri	CHENOPODIACEAE	PITSEED GOOSEFOOT	native	
Chenopodium berlandieri var. sinuatum	CHENOPODIACEAE		native	
Chenopodium berlandieri var. zschackei	CHENOPODIACEAE		native	
Chenopodium californicum	CHENOPODIACEAE	CALIFORNIA GOOSEFOOT	native	
Chenopodium capitatum	CHENOPODIACEAE	STRAWBERRY-BLITE	native	
Chenopodium capitatum var. capitatum	CHENOPODIACEAE		naturalized	
Chenopodium capitatum var. parvicapitatum	CHENOPODIACEAE		native	
Chenopodium chenopodioides	CHENOPODIACEAE		naturalized	
Chenopodium desiccatum	CHENOPODIACEAE		native	
Chenopodium foliosum	CHENOPODIACEAE		naturalized	
Chenopodium fremontii	CHENOPODIACEAE		native	
Chenopodium glaucum	CHENOPODIACEAE		native	
Chenopodium glaucum var. salinum	CHENOPODIACEAE		native	
Chenopodium hians	CHENOPODIACEAE		native	
Chenopodium incanum	CHENOPODIACEAE		native	
Chenopodium incanum var. occidentale	CHENOPODIACEAE		native	
Chenopodium leptophyllum	CHENOPODIACEAE		native	
Chenopodium littoreum	CHENOPODIACEAE		native	
Chenopodium macrospermum	CHENOPODIACEAE		naturalized	
Chenopodium missouriense	CHENOPODIACEAE		naturalized	
Chenopodium murale	CHENOPODIACEAE		naturalized	
Chenopodium nevadense	CHENOPODIACEAE		native	
Chenopodium pratericola	CHENOPODIACEAE		native	
Chenopodium rubrum	CHENOPODIACEAE	RED PIGWEED	native	
Chenopodium rubrum var. humile	CHENOPODIACEAE		native	
Chenopodium rubrum var. rubrum	CHENOPODIACEAE		native	
Chenopodium simplex	CHENOPODIACEAE	LARGE-SEEDED GOOSEFOOT	native	
Chenopodium strictum	CHENOPODIACEAE		naturalized	
Chenopodium strictum var. glaucophyllum	CHENOPODIACEAE		naturalized	
Chenopodium vulvaria	CHENOPODIACEAE		naturalized	
Chenopodium watsonii	CHENOPODIACEAE		native	
Chilopsis linearis	BIGNONIACEAE		native	
Chilopsis linearis subsp. arcuata	BIGNONIACEAE		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 truncata	POACEAE	BLACK WINDMILL GRASS	naturalized	
Chloris verticillata	POACEAE	WINDMILL GRASS	naturalized	
Chloris virgata	POACEAE	FEATHER FINGER GRASS	naturalized	
Chlorogalum angustifolium	AGAVACEAE		native	
Chlorogalum grandiflorum	AGAVACEAE	RED HILLS SOAPROOT	native	
Chlorogalum parviflorum	AGAVACEAE		native	
Chlorogalum pomeridianum	AGAVACEAE		native	
Chlorogalum pomeridianum var. divaricatum	AGAVACEAE		native	
Chlorogalum pomeridianum var. minus	AGAVACEAE	DWARF SOAPROOT	native	
Chlorogalum pomeridianum var. pomeridianum	AGAVACEAE		native	
Chlorogalum purpureum	AGAVACEAE		native	
Chlorogalum purpureum var. purpureum	AGAVACEAE	SANTA LUCIA PURPLE AMOLE	native	
Chlorogalum purpureum var. reductum	AGAVACEAE	CAMATTA CANYON AMOLE	native	
Chloropyron maritimum	OROBANCHACEAE		native	
Chloropyron maritimum subsp. canescens	OROBANCHACEAE		native	
Chloropyron maritimum subsp. maritimum	OROBANCHACEAE	SALT MARSH BIRD'S-BEAK	native	
Chloropyron maritimum subsp. palustre	OROBANCHACEAE	POINT REYES SALTY BIRD'S-BEAK	native	
Chloropyron molle	OROBANCHACEAE		native	
Chloropyron molle subsp. hispidum	OROBANCHACEAE	HISPID SALTY BIRD'S-BEAK	native	
Chloropyron molle subsp. molle	OROBANCHACEAE	SOFT SALTY BIRD'S-BEAK	native	
Chloropyron palmatum	OROBANCHACEAE	PALMATE SALTY BIRD'S-BEAK	native	
Chloropyron tecopense	OROBANCHACEAE	TECOPA SALTY BIRD'S-BEAK	native	
Chondrilla juncea	ASTERACEAE	SKELETON WEED	naturalized	
Chorispora tenella	BRASSICACEAE		naturalized	
Chorizanthe angustifolia	POLYGONACEAE	NARROW-LEAF SPINEFLOWER	native	
Chorizanthe biloba	POLYGONACEAE		native	
Chorizanthe biloba var. biloba	POLYGONACEAE	TWO-LOBE SPINEFLOWER	native	
Chorizanthe biloba var. immemora	POLYGONACEAE	HERNANDEZ SPINEFLOWER	native	
Chorizanthe blakleyi	POLYGONACEAE	BLAKLEY'S SPINEFLOWER	native	
Chorizanthe brevicornu	POLYGONACEAE		native	
Chorizanthe brevicornu var. brevicornu	POLYGONACEAE	BRITTLE SPINEFLOWER	native	
Chorizanthe brevicornu var. spathulata	POLYGONACEAE	GREAT BASIN BRITTLE SPINEFLOWER	native	
Chorizanthe breweri	POLYGONACEAE	BREWER'S SPINEFLOWER	native	
Chorizanthe clevelandii	POLYGONACEAE	CLEVELAND'S SPINEFLOWER	native	
Chorizanthe corrugata	POLYGONACEAE	WRINKLED SPINEFLOWER	native	
Chorizanthe cuspidata	POLYGONACEAE		native	
Chorizanthe cuspidata var. cuspidata	POLYGONACEAE	SAN FRANCISCO BAY SPINEFLOWER	native	
Chorizanthe cuspidata var. villosa	POLYGONACEAE	WOOLLY-HEADED SPINEFLOWER	native	
Chorizanthe diffusa	POLYGONACEAE	DIFFUSE SPINEFLOWER	native	
Chorizanthe douglasii	POLYGONACEAE	DOUGLAS' SPINEFLOWER	native	
Chorizanthe fimbriata	POLYGONACEAE		native	
Chorizanthe fimbriata var. fimbriata	POLYGONACEAE	FRINGED SPINEFLOWER	native	
Chorizanthe fimbriata var. laciniata	POLYGONACEAE	LACINIATE SPINEFLOWER	native	
Chorizanthe howellii	POLYGONACEAE	HOWELL'S SPINEFLOWER	native	
Chorizanthe leptotheca	POLYGONACEAE	PENINSULAR SPINEFLOWER	native	
Chorizanthe membranacea	POLYGONACEAE	PINK SPINEFLOWER	native	
Chorizanthe obovata	POLYGONACEAE	SPOON-SEPAL SPINEFLOWER	native	
Chorizanthe orcuttiana	POLYGONACEAE	ORCUTT'S SPINEFLOWER	native	
Chorizanthe palmeri	POLYGONACEAE	PALMER'S SPINEFLOWER	native	
Chorizanthe parryi	POLYGONACEAE		native	
Chorizanthe parryi var. fernandina	POLYGONACEAE	SAN FERNANDO VALLEY SPINEFLOWER	native	
Chorizanthe parryi var. parryi	POLYGONACEAE	PARRY'S SPINEFLOWER	native	
Chorizanthe polygonoides	POLYGONACEAE		native	
Chorizanthe polygonoides var. longispina	POLYGONACEAE	LONG-SPINED SPINEFLOWER	native	
Chorizanthe polygonoides var. polygonoides	POLYGONACEAE	KNOTWEED SPINEFLOWER	native	
Chorizanthe procumbens	POLYGONACEAE	PROSTRATE SPINEFLOWER	native	
Chorizanthe pungens	POLYGONACEAE		native	
Chorizanthe pungens var. hartwegiana	POLYGONACEAE	BEN LOMOND SPINEFLOWER	native	
Chorizanthe pungens var. pungens	POLYGONACEAE	MONTEREY SPINEFLOWER	native	
Chorizanthe rectispina	POLYGONACEAE	STRAIGHT-AWNED SPINEFLOWER	native	
Chorizanthe rigida	POLYGONACEAE	DEVIL'S SPINEFLOWER	native	
Chorizanthe robusta	POLYGONACEAE		native	
Chorizanthe robusta var. hartwegii	POLYGONACEAE	SCOTTS VALLEY SPINEFLOWER	native	
Chorizanthe robusta var. robusta	POLYGONACEAE	ROBUST SPINEFLOWER	native	
Chorizanthe spinosa	POLYGONACEAE	MOJAVE SPINEFLOWER	native	
Chorizanthe staticoides	POLYGONACEAE	TURKISH RUGGING	native	
Chorizanthe stellulata	POLYGONACEAE	STARLITE SPINEFLOWER	native	
Chorizanthe uniaristata	POLYGONACEAE	ONE-AWN SPINEFLOWER	native	
Chorizanthe valida	POLYGONACEAE	SONOMA SPINEFLOWER	native	
Chorizanthe ventricosa	POLYGONACEAE	POTBELLIED SPINEFLOWER	native	
Chorizanthe watsonii	POLYGONACEAE	WATSON'S SPINEFLOWER	native	
Chorizanthe wheeleri	POLYGONACEAE	WHEELER'S SPINEFLOWER	native	
Chorizanthe xanti	POLYGONACEAE		native	
Chorizanthe xanti var. leucotheca	POLYGONACEAE	WHITE-BRACTED SPINEFLOWER	native	
Chorizanthe xanti var. xanti	POLYGONACEAE	PINYON SPINEFLOWER	native	
Chrysanthemoides monilifera	ASTERACEAE		naturalized	
Chrysanthemoides monilifera subsp. monilifera	ASTERACEAE	BITOU BUSH	naturalized	
Chrysolepis chrysophylla	FAGACEAE	GIANT CHINQUAPIN	native	
Chrysolepis chrysophylla var. chrysophylla	FAGACEAE		native	
Chrysolepis chrysophylla var. minor	FAGACEAE		native	
Chrysolepis sempervirens	FAGACEAE	BUSH CHINQUAPIN	native	
Chrysosplenium glechomifolium	SAXIFRAGACEAE		native	
Chrysothamnus depressus	ASTERACEAE		native	
Chrysothamnus greenei	ASTERACEAE	GREENE'S RABBITBRUSH	native	
Chrysothamnus humilis	ASTERACEAE		native	
Chrysothamnus viscidiflorus	ASTERACEAE	YELLOW RABBITBRUSH	native	
Chrysothamnus viscidiflorus subsp. axillaris	ASTERACEAE		native	
Chrysothamnus viscidiflorus subsp. lanceolatus	ASTERACEAE		native	
Chrysothamnus viscidiflorus subsp. puberulus	ASTERACEAE		native	
Chrysothamnus viscidiflorus subsp. viscidiflorus	ASTERACEAE		native	
Chylismia arenaria	ONAGRACEAE		native	
Chylismia brevipes	ONAGRACEAE		native	
Chylismia brevipes subsp. arizonica	ONAGRACEAE		native	
Chylismia brevipes subsp. brevipes	ONAGRACEAE		native	
Chylismia brevipes subsp. pallidula	ONAGRACEAE		native	
Chylismia cardiophylla	ONAGRACEAE		native	
Chylismia cardiophylla subsp. cardiophylla	ONAGRACEAE		native	
Chylismia cardiophylla subsp. robusta	ONAGRACEAE		native	
Chylismia claviformis	ONAGRACEAE		native	
Chylismia claviformis subsp. aurantiaca	ONAGRACEAE		native	
Chylismia claviformis subsp. claviformis	ONAGRACEAE		native	
Chylismia claviformis subsp. cruciformis	ONAGRACEAE		native	
Chylismia claviformis subsp. funerea	ONAGRACEAE		native	
Chylismia claviformis subsp. integrior	ONAGRACEAE		native	
Chylismia claviformis subsp. lancifolia	ONAGRACEAE		native	
Chylismia claviformis subsp. peirsonii	ONAGRACEAE		native	
Chylismia claviformis subsp. yumae	ONAGRACEAE		native	
Chylismia heterochroma	ONAGRACEAE	SHOCKLEY'S EVENING-PRIMROSE	native	
Chylismia munzii	ONAGRACEAE		native	
Chylismia walkeri	ONAGRACEAE		native	
Chylismia walkeri subsp. tortilis	ONAGRACEAE		native	
Chylismiella pterosperma	ONAGRACEAE		native	
Cicendia quadrangularis	GENTIANACEAE	TIMWORT	native	
Cichorium intybus	ASTERACEAE		naturalized	
Cicuta douglasii	APIACEAE		native	
Cicuta maculata	APIACEAE		native	
Cicuta maculata var. angustifolia	APIACEAE		native	
Cicuta maculata var. bolanderi	APIACEAE	BOLANDER'S WATER-HEMLOCK	native	
Cinna bolanderi	POACEAE	BOLANDER'S WOODREED	native	
Cinna latifolia	POACEAE	SLENDER WOODREED	native	
Cinnamomum camphora	LAURACEAE	CAMPHOR TREE	naturalized	
Circaea alpina	ONAGRACEAE		native	
Circaea alpina subsp. pacifica	ONAGRACEAE		native	
Cirsium andersonii	ASTERACEAE		native	
Cirsium andrewsii	ASTERACEAE	FRANCISCAN THISTLE	native	
Cirsium arizonicum	ASTERACEAE		native	
Cirsium arizonicum var. arizonicum	ASTERACEAE	ARIZONA THISTLE	native	
Cirsium arizonicum var. tenuisectum	ASTERACEAE	DESERT MOUNTAIN THISTLE	native	
Cirsium arvense	ASTERACEAE	CANADA THISTLE	naturalized	
Cirsium brevistylum	ASTERACEAE		native	
Cirsium canescens	ASTERACEAE	PRAIRIE THISTLE	naturalized	
Cirsium ciliolatum	ASTERACEAE	ASHLAND THISTLE	native	
Cirsium crassicaule	ASTERACEAE	SLOUGH THISTLE	native	
Cirsium cymosum	ASTERACEAE		native	
Cirsium cymosum var. canovirens	ASTERACEAE	GRAY-GREEN THISTLE	native	
Cirsium cymosum var. cymosum	ASTERACEAE	PEREGRINE THISTLE	native	
Cirsium douglasii	ASTERACEAE	SWAMP THISTLE	native	
Cirsium douglasii var. breweri	ASTERACEAE		native	
Cirsium douglasii var. douglasii	ASTERACEAE		native	
Cirsium fontinale	ASTERACEAE	FOUNTAIN THISTLE	native	
Cirsium fontinale var. campylon	ASTERACEAE	MOUNT HAMILTON FOUNTAIN THISTLE	native	
Cirsium fontinale var. fontinale	ASTERACEAE	CRYSTAL SPRINGS FOUNTAIN THISTLE	native	
Cirsium fontinale var. obispoense	ASTERACEAE	SAN LUIS OBISPO FOUNTAIN THISTLE	native	
Cirsium hydrophilum	ASTERACEAE		native	
Cirsium hydrophilum var. hydrophilum	ASTERACEAE	SUISUN THISTLE	native	
Cirsium hydrophilum var. vaseyi	ASTERACEAE	MOUNT TAMALPAIS THISTLE	native	
Cirsium inamoenum	ASTERACEAE		native	
Cirsium inamoenum var. inamoenum	ASTERACEAE	GREENE'S THISTLE	native	
Cirsium mohavense	ASTERACEAE	MOJAVE THISTLE	native	
Cirsium neomexicanum	ASTERACEAE	DESERT THISTLE	native	
Cirsium occidentale	ASTERACEAE		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. coulteri	ASTERACEAE	COULTER'S THISTLE	native	
Cirsium occidentale var. lucianum	ASTERACEAE	CUESTA RIDGE THISTLE	native	
Cirsium occidentale var. occidentale	ASTERACEAE	COBWEBBY THISTLE	native	
Cirsium occidentale var. venustum	ASTERACEAE	VENUS THISTLE	native	
Cirsium ochrocentrum	ASTERACEAE		naturalized	
Cirsium ochrocentrum var. ochrocentrum	ASTERACEAE	YELLOWSPINE THISTLE	naturalized	
Cirsium quercetorum	ASTERACEAE	BROWNIE THISTLE	native	
Cirsium remotifolium	ASTERACEAE		native	
Cirsium remotifolium var. odontolepis	ASTERACEAE	PACIFIC FRINGED THISTLE	native	
Cirsium remotifolium var. remotifolium	ASTERACEAE	REMOTE-LEAVED THISTLE	native	
Cirsium remotifolium var. rivulare	ASTERACEAE	KLAMATH THISTLE	native	
Cirsium rhothophilum	ASTERACEAE	SURF THISTLE	native	
Cirsium scariosum	ASTERACEAE	MEADOW THISTLE	native	
Cirsium scariosum var. americanum	ASTERACEAE	DINNERPLATE THISTLE	native	
Cirsium scariosum var. citrinum	ASTERACEAE	SOUTHERN MEADOW THISTLE	native	
Cirsium scariosum var. congdonii	ASTERACEAE	ROSETTE THISTLE	native	
Cirsium scariosum var. loncholepis	ASTERACEAE	LA GRACIOSA THISTLE	native	
Cirsium scariosum var. robustum	ASTERACEAE	SHASTA VALLEY THISTLE	native	
Cirsium scariosum var. scariosum	ASTERACEAE	ELK THISTLE	native	
Cirsium undulatum	ASTERACEAE	WAVYLEAF THISTLE	native	
Cirsium vulgare	ASTERACEAE	BULL THISTLE	naturalized	
Cistanthe ambigua	MONTIACEAE	DESERT CISTANTHE	native	
Cistanthe maritima	MONTIACEAE	SEASIDE CISTANTHE	native	
Cistus incanus	CISTACEAE		naturalized	
Cistus ladanifer	CISTACEAE	GUM CISTUS	naturalized	
Cistus monspeliensis	CISTACEAE		naturalized	
Cistus salviifolius	CISTACEAE		naturalized	
Citrullus lanatus	CUCURBITACEAE		naturalized	
Citrullus lanatus var. citroides	CUCURBITACEAE	WILD WATERMELON	naturalized	
Cladium californicum	CYPERACEAE	CALIFORNIA SAWGRASS	native	
Clarkia affinis	ONAGRACEAE		native	
Clarkia amoena	ONAGRACEAE	FAREWELL-TO-SPRING	native	
Clarkia amoena subsp. amoena	ONAGRACEAE		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	BRANDEGEE'S CLARKIA	native	
Clarkia borealis	ONAGRACEAE		native	
Clarkia borealis subsp. arida	ONAGRACEAE	SHASTA CLARKIA	native	
Clarkia borealis subsp. borealis	ONAGRACEAE	NORTHERN CLARKIA	native	
Clarkia bottae	ONAGRACEAE	PUNCHBOWL GODETIA	native	
Clarkia breweri	ONAGRACEAE	BREWER'S CLARKIA	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	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	TRACY'S CLARKIA	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		native	
Clarkia mildrediae subsp. lutescens	ONAGRACEAE	GOLDEN-ANTHERED CLARKIA	native	
Clarkia mildrediae subsp. mildrediae	ONAGRACEAE	MILDRED'S CLARKIA	native	
Clarkia modesta	ONAGRACEAE		native	
Clarkia mosquinii	ONAGRACEAE	MOSQUIN'S CLARKIA	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	KERN CANYON CLARKIA	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	STREAMBANK SPRING BEAUTY	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	GREAT BASIN CLAYTONIA	native	
Claytonia washingtoniana	MONTIACEAE		native	
Clematis lasiantha	RANUNCULACEAE	PIPESTEM CLEMATIS	native	
Clematis ligusticifolia	RANUNCULACEAE	WESTERN VIRGIN'S BOWER	native	
Clematis pauciflora	RANUNCULACEAE	FEW-FLOWERED CLEMATIS	native	
Cleomella brevipes	CLEOMACEAE	SHORT-PEDICELLED CLEOMELLA	native	
Cleomella hillmanii	CLEOMACEAE		native	
Cleomella hillmanii var. hillmanii	CLEOMACEAE	HILLMAN'S CLEOMELLA	native	
Cleomella obtusifolia	CLEOMACEAE	MOJAVE STINKWEED	native	
Cleomella parviflora	CLEOMACEAE		native	
Cleomella plocasperma	CLEOMACEAE		native	
Clinopodium chandleri	LAMIACEAE	SAN MIGUEL SAVORY	native	
Clinopodium douglasii	LAMIACEAE	YERBA BUENA	native	
Clinopodium mimuloides	LAMIACEAE	MONKEY-FLOWER SAVORY	native	
Clintonia andrewsiana	LILIACEAE		native	
Clintonia uniflora	LILIACEAE		native	
Cneoridium dumosum	RUTACEAE	BUSHRUE	native	
Cochlearia groenlandica	BRASSICACEAE	GREENLAND COCHLEARIA	native	
Coincya monensis	BRASSICACEAE		naturalized	
Coincya monensis subsp. recurvata	BRASSICACEAE	STAR MUSTARD	naturalized	
Coleogyne ramosissima	ROSACEAE		native	
Collinsia antonina	PLANTAGINACEAE	SAN ANTONIO COLLINSIA	native	
Collinsia bartsiifolia	PLANTAGINACEAE		native	
Collinsia bartsiifolia var. bartsiifolia	PLANTAGINACEAE		native	
Collinsia bartsiifolia var. davidsonii	PLANTAGINACEAE		native	
Collinsia bartsiifolia var. stricta	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		native	
Collinsia heterophylla var. austromontana	PLANTAGINACEAE	DOWNY CHINESE-HOUSES	native	
Collinsia heterophylla var. 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. 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	LARGE-FLOWERED COLLOMIA	native	
Collomia heterophylla	POLEMONIACEAE	VARIABLE-LEAF COLLOMIA	native	
Collomia larsenii	POLEMONIACEAE	TALUS COLLOMIA	native	
Collomia linearis	POLEMONIACEAE	NARROW-LEAF MOUNTAIN TRUMPET	native	
Collomia rawsoniana	POLEMONIACEAE	RAWSON'S FLAMING-TRUMPET	native	
Collomia tenella	POLEMONIACEAE	SLENDER COLLOMIA	native	
Collomia tinctoria	POLEMONIACEAE	STAINING COLLOMIA	native	
Collomia tracyi	POLEMONIACEAE	TRACY'S COLLOMIA	native	
Colubrina californica	RHAMNACEAE	LAS ANIMAS COLUBRINA	native	
Colutea arborescens	FABACEAE		naturalized	
Comandra umbellata	COMANDRACEAE		native	
Comandra umbellata subsp. californica	COMANDRACEAE		native	
Comarostaphylis diversifolia	ERICACEAE		native	
Comarostaphylis diversifolia subsp. diversifolia	ERICACEAE	SUMMER HOLLY	native	
Comarostaphylis diversifolia subsp. planifolia	ERICACEAE		native	
Comarum palustre	ROSACEAE	MARSH CINQUEFOIL	native	
Comastoma tenellum	GENTIANACEAE	SAMILAND GENTIAN	native	
Commelina benghalensis	COMMELINACEAE	TROPICAL SPIDERWORT	naturalized	
Condalia globosa	RHAMNACEAE		native	
Condalia globosa var. pubescens	RHAMNACEAE	SPINY ABROJO	native	
Condea emoryi	LAMIACEAE		native	
Conicosia pugioniformis	AIZOACEAE	NARROWLEAF ICEPLANT	naturalized	
Conioselinum pacificum	APIACEAE		native	
Conium maculatum	APIACEAE		naturalized	
Conringia orientalis	BRASSICACEAE		naturalized	
Consolida ajacis	RANUNCULACEAE		naturalized	
Constancea nevinii	ASTERACEAE	NEVIN'S WOOLLY SUNFLOWER	native	
Convolvulus arvensis	CONVOLVULACEAE	ORCHARD MORNING-GLORY	naturalized	
Convolvulus simulans	CONVOLVULACEAE	SMALL-FLOWERED MORNING-GLORY	native	
Coptis laciniata	RANUNCULACEAE	OREGON 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	OROBANCHACEAE	YAKIMA BIRD'S-BEAK	native	
Cordylanthus eremicus	OROBANCHACEAE		native	
Cordylanthus eremicus subsp. eremicus	OROBANCHACEAE	DESERT BIRD'S-BEAK	native	
Cordylanthus eremicus subsp. kernensis	OROBANCHACEAE	KERN PLATEAU BIRD'S-BEAK	native	
Cordylanthus kingii	OROBANCHACEAE		native	
Cordylanthus kingii subsp. helleri	OROBANCHACEAE		native	
Cordylanthus nevinii	OROBANCHACEAE		native	
Cordylanthus nidularius	OROBANCHACEAE	MOUNT DIABLO BIRD'S-BEAK	native	
Cordylanthus parviflorus	OROBANCHACEAE	SMALL-FLOWERED BIRD'S-BEAK	native	
Cordylanthus pilosus	OROBANCHACEAE		native	
Cordylanthus pilosus subsp. hansenii	OROBANCHACEAE		native	
Cordylanthus pilosus subsp. pilosus	OROBANCHACEAE		native	
Cordylanthus pilosus subsp. trifidus	OROBANCHACEAE		native	
Cordylanthus pringlei	OROBANCHACEAE		native	
Cordylanthus ramosus	OROBANCHACEAE		native	
Cordylanthus rigidus	OROBANCHACEAE		native	
Cordylanthus rigidus subsp. brevibracteatus	OROBANCHACEAE	SHORT-BRACTED BIRD'S-BEAK	native	
Cordylanthus rigidus subsp. littoralis	OROBANCHACEAE	SEASIDE BIRD'S-BEAK	native	
Cordylanthus rigidus subsp. rigidus	OROBANCHACEAE		native	
Cordylanthus rigidus subsp. setigerus	OROBANCHACEAE		native	
Cordylanthus tenuis	OROBANCHACEAE		native	
Cordylanthus tenuis subsp. barbatus	OROBANCHACEAE	FRESNO COUNTY BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. brunneus	OROBANCHACEAE	SERPENTINE BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. capillaris	OROBANCHACEAE	PENNELL'S BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. pallescens	OROBANCHACEAE	PALLID BIRD'S-BEAK	native	
Cordylanthus tenuis subsp. tenuis	OROBANCHACEAE		native	
Cordylanthus tenuis subsp. viscidus	OROBANCHACEAE		native	
Cordyline australis	LAXMANNIACEAE	NEW ZEALAND CABBAGE TREE	naturalized	
Coreopsis lanceolata	ASTERACEAE	GARDEN COREOPSIS	naturalized	
Coreopsis tinctoria	ASTERACEAE	CALLIOPSIS	naturalized	
Corethrogyne filaginifolia	ASTERACEAE		native	
Coriandrum sativum	APIACEAE	CILANTRO	naturalized	
Corispermum americanum	CHENOPODIACEAE		native	
Corispermum americanum var. americanum	CHENOPODIACEAE	AMERICAN BUGSEED	native	
Cornus canadensis	CORNACEAE	BUNCHBERRY	native	
Cornus glabrata	CORNACEAE		native	
Cornus nuttallii	CORNACEAE	MOUNTAIN DOGWOOD	native	
Cornus sericea	CORNACEAE	AMERICAN DOGWOOD	native	
Cornus sericea subsp. occidentalis	CORNACEAE		native	
Cornus sericea subsp. sericea	CORNACEAE		native	
Cornus sessilis	CORNACEAE		native	
Coronilla varia	FABACEAE	CROWN VETCH	naturalized	
Cortaderia jubata	POACEAE		naturalized	
Cortaderia selloana	POACEAE	PAMPAS GRASS	naturalized	
Corydalis aurea	PAPAVERACEAE	GOLDEN CORYDALIS	native	
Corydalis caseana	PAPAVERACEAE		native	
Corydalis caseana subsp. caseana	PAPAVERACEAE	FITWEED	native	
Corylus cornuta	BETULACEAE		native	
Corylus cornuta subsp. californica	BETULACEAE	CALIFORNIA HAZEL	native	
Coryphantha alversonii	CACTACEAE	FOXTAIL CACTUS	native	
Coryphantha chlorantha	CACTACEAE	DESERT PINCUSHION	native	
Coryphantha vivipara	CACTACEAE		native	
Coryphantha vivipara var. rosea	CACTACEAE	VIVIPAROUS FOXTAIL CACTUS	native	
Cosmos bipinnatus	ASTERACEAE	GARDEN COSMOS	naturalized	
Cotoneaster franchetii	ROSACEAE	FRANCHET'S COTONEASTER	naturalized	
Cotoneaster frigidus	ROSACEAE	TREE COTONEASTER	naturalized	
Cotoneaster hodjingensis	ROSACEAE	EARTHQUAKE COTONEASTER	naturalized	
Cotoneaster horizontalis	ROSACEAE	HERRINGBONE COTONEASTER	naturalized	
Cotoneaster integrifolius	ROSACEAE	ENTIRE-LEAVED COTONEASTER	naturalized	
Cotoneaster lacteus	ROSACEAE	LATE COTONEASTER	naturalized	
Cotoneaster pannosus	ROSACEAE	SILVERLEAF COTONEASTER	naturalized	
Cotoneaster simonsii	ROSACEAE	HIMALAYAN COTONEASTER	naturalized	
Cotula australis	ASTERACEAE	AUSTRALIAN COTULA	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	CHINESE PINE-TREE	naturalized	
Crassula tillaea	CRASSULACEAE		naturalized	
Crataegus castlegarensis	ROSACEAE		native	
Crataegus douglasii	ROSACEAE		native	
Crataegus gaylussacia	ROSACEAE		native	
Crataegus monogyna	ROSACEAE		naturalized	
Crepis acuminata	ASTERACEAE		native	
Crepis bakeri	ASTERACEAE		native	
Crepis bakeri subsp. bakeri	ASTERACEAE		native	
Crepis bakeri subsp. cusickii	ASTERACEAE		native	
Crepis bakeri subsp. idahoensis	ASTERACEAE		native	
Crepis capillaris	ASTERACEAE		naturalized	
Crepis intermedia	ASTERACEAE		native	
Crepis modocensis	ASTERACEAE		native	
Crepis modocensis subsp. modocensis	ASTERACEAE		native	
Crepis modocensis subsp. subacaulis	ASTERACEAE		native	
Crepis monticola	ASTERACEAE		native	
Crepis nana	ASTERACEAE		native	
Crepis occidentalis	ASTERACEAE		native	
Crepis occidentalis subsp. conjuncta	ASTERACEAE		native	
Crepis occidentalis subsp. costata	ASTERACEAE		native	
Crepis occidentalis subsp. occidentalis	ASTERACEAE		native	
Crepis occidentalis subsp. pumila	ASTERACEAE		native	
Crepis pleurocarpa	ASTERACEAE		native	
Crepis runcinata	ASTERACEAE		native	
Crepis runcinata subsp. andersonii	ASTERACEAE		native	
Crepis runcinata subsp. hallii	ASTERACEAE	HALL'S MEADOW HAWKSBEARD	native	
Crepis setosa	ASTERACEAE		naturalized	
Crepis tectorum	ASTERACEAE		naturalized	
Crepis vesicaria	ASTERACEAE		naturalized	
Crepis vesicaria subsp. taraxacifolia	ASTERACEAE		naturalized	
Cressa truxillensis	CONVOLVULACEAE	ALKALI WEED	native	
Crocanthemum aldersonii	CISTACEAE		native	
Crocanthemum greenei	CISTACEAE		native	
Crocanthemum scoparium	CISTACEAE		native	
Crocanthemum scoparium var. scoparium	CISTACEAE		native	
Crocanthemum scoparium var. vulgare	CISTACEAE		native	
Crocanthemum suffrutescens	CISTACEAE		native	
Crocidium multicaule	ASTERACEAE		native	
Crocosmia	IRIDACEAE		naturalized	
Crossosoma bigelovii	CROSSOSOMATACEAE		native	
Crossosoma californicum	CROSSOSOMATACEAE	CATALINA CROSSOSOMA	native	
Croton californicus	EUPHORBIACEAE		native	
Croton setiger	EUPHORBIACEAE	TURKEY-MULLEIN	native	
Croton wigginsii	EUPHORBIACEAE	WIGGINS' CROTON	native	
Crucianella angustifolia	RUBIACEAE		naturalized	
Crupina vulgaris	ASTERACEAE	BEARDED CREEPER	naturalized	
Crypsis alopecuroides	POACEAE	FOXTAIL PRICKLE GRASS	naturalized	
Crypsis schoenoides	POACEAE	SWAMP PRICKLE GRASS	naturalized	
Crypsis vaginiflora	POACEAE	MODEST PRICKLE GRASS	naturalized	
Cryptantha affinis	BORAGINACEAE	SIDE-GROOVED CRYPTANTHA	native	
Cryptantha ambigua	BORAGINACEAE	WILKES' CRYPTANTHA	native	
Cryptantha angustifolia	BORAGINACEAE	NARROW-LEAVED CRYPTANTHA	native	
Cryptantha barbigera	BORAGINACEAE		native	
Cryptantha barbigera var. barbigera	BORAGINACEAE	BEARDED CRYPTANTHA	native	
Cryptantha barbigera var. fergusoniae	BORAGINACEAE	PALM SPRINGS CRYPTANTHA	native	
Cryptantha celosioides	BORAGINACEAE	COCKS-COMB CAT'S-EYE	native	
Cryptantha cinerea	BORAGINACEAE		native	
Cryptantha cinerea var. abortiva	BORAGINACEAE	BOW-NUT CRYPTANTHA	native	
Cryptantha circumscissa	BORAGINACEAE		native	
Cryptantha circumscissa var. circumscissa	BORAGINACEAE	CUSHION CRYPTANTHA	native	
Cryptantha circumscissa var. rosulata	BORAGINACEAE	ROSETTE CUSHION CRYPTANTHA	native	
Cryptantha clevelandii	BORAGINACEAE		native	
Cryptantha clevelandii var. clevelandii	BORAGINACEAE	CLEVELAND'S CRYPTANTHA	native	
Cryptantha clevelandii var. florosa	BORAGINACEAE	COASTAL CRYPTANTHA	native	
Cryptantha clokeyi	BORAGINACEAE	CLOKEY'S CRYPTANTHA	native	
Cryptantha confertiflora	BORAGINACEAE	YELLOW-FLOWERED CRYPTANTHA	native	
Cryptantha corollata	BORAGINACEAE	COAST RANGE CRYPTANTHA	native	
Cryptantha costata	BORAGINACEAE	RIBBED CRYPTANTHA	native	
Cryptantha crinita	BORAGINACEAE	SILKY CRYPTANTHA	native	
Cryptantha crymophila	BORAGINACEAE	SUBALPINE CRYPTANTHA	native	
Cryptantha decipiens	BORAGINACEAE	GRAVEL CRYPTANTHA	native	
Cryptantha dissita	BORAGINACEAE	LAKE CRYPTANTHA	native	
Cryptantha dumetorum	BORAGINACEAE	SCRAMBLING CRYPTANTHA	native	
Cryptantha echinella	BORAGINACEAE	HEDGEHOG CRYPTANTHA	native	
Cryptantha excavata	BORAGINACEAE	DEEP-SCARRED CRYPTANTHA	native	
Cryptantha fendleri	BORAGINACEAE	SANDDUNE CRYPTANTHA	native	
Cryptantha flaccida	BORAGINACEAE	PALE CRYPTANTHA	native	
Cryptantha flavoculata	BORAGINACEAE	YELLOW-EYED CRYPTANTHA	native	
Cryptantha ganderi	BORAGINACEAE	GANDER'S CRYPTANTHA	native	
Cryptantha glomeriflora	BORAGINACEAE	CLUSTERED-FLOWER CRYPTANTHA	native	
Cryptantha gracilis	BORAGINACEAE	SLENDER CRYPTANTHA	native	
Cryptantha hispidula	BORAGINACEAE	NAPA CRYPTANTHA	native	
Cryptantha hoffmannii	BORAGINACEAE	WHITE MOUNTAINS CRYPTANTHA	native	
Cryptantha holoptera	BORAGINACEAE	WINGED CRYPTANTHA	native	
Cryptantha hooveri	BORAGINACEAE	HOOVER'S CRYPTANTHA	native	
Cryptantha humilis	BORAGINACEAE	LOW CRYPTANTHA	native	
Cryptantha inaequata	BORAGINACEAE	PANAMINT CRYPTANTHA	native	
Cryptantha incana	BORAGINACEAE	TULARE CRYPTANTHA	native	
Cryptantha intermedia	BORAGINACEAE		native	
Cryptantha intermedia var. hendersonii	BORAGINACEAE	HENDERSON'S CRYPTANTHA	native	
Cryptantha intermedia var. intermedia	BORAGINACEAE		native	
Cryptantha leiocarpa	BORAGINACEAE	BEACH CRYPTANTHA	native	
Cryptantha mariposae	BORAGINACEAE	MARIPOSA CRYPTANTHA	native	
Cryptantha maritima	BORAGINACEAE	GUADALUPE CRYPTANTHA	native	
Cryptantha micrantha	BORAGINACEAE		native	
Cryptantha micrantha var. lepida	BORAGINACEAE	MOUNTAIN RED-ROOT CRYPTANTHA	native	
Cryptantha micrantha var. micrantha	BORAGINACEAE	RED-ROOT CRYPTANTHA	native	
Cryptantha micromeres	BORAGINACEAE	MINUTE-FLOWERED CRYPTANTHA	native	
Cryptantha microstachys	BORAGINACEAE	TEJON CRYPTANTHA	native	
Cryptantha milobakeri	BORAGINACEAE	MILO BAKER'S CRYPTANTHA	native	
Cryptantha mohavensis	BORAGINACEAE	MOJAVE CRYPTANTHA	native	
Cryptantha muricata	BORAGINACEAE		native	
Cryptantha muricata var. denticulata	BORAGINACEAE	PRICKLY-NUT CRYPTANTHA	native	
Cryptantha muricata var. jonesii	BORAGINACEAE	JONES' CRYPTANTHA	native	
Cryptantha muricata var. muricata	BORAGINACEAE	SHOWY PRICKLY-NUT CRYPTANTHA	native	
Cryptantha nemaclada	BORAGINACEAE	COLUSA CRYPTANTHA	native	
Cryptantha nevadensis	BORAGINACEAE		native	
Cryptantha nevadensis var. nevadensis	BORAGINACEAE	NEVADA CRYPTANTHA	native	
Cryptantha nevadensis var. rigida	BORAGINACEAE	RIGID CRYPTANTHA	native	
Cryptantha nubigena	BORAGINACEAE	SIERRA CRYPTANTHA	native	
Cryptantha oxygona	BORAGINACEAE	SHARP-NUT CRYPTANTHA	native	
Cryptantha pterocarya	BORAGINACEAE		native	
Cryptantha pterocarya var. cycloptera	BORAGINACEAE	TUCSON CRYPTANTHA	native	
Cryptantha pterocarya var. pterocarya	BORAGINACEAE	WINGED-NUT CRYPTANTHA	native	
Cryptantha pterocarya var. purpusii	BORAGINACEAE	PURPUS' CRYPTANTHA	native	
Cryptantha racemosa	BORAGINACEAE	SHRUBBY CRYPTANTHA	native	
Cryptantha rattanii	BORAGINACEAE	RATTAN'S CRYPTANTHA	native	
Cryptantha recurvata	BORAGINACEAE	CURVED-NUT CRYPTANTHA	native	
Cryptantha roosiorum	BORAGINACEAE	BRISTLECONE CRYPTANTHA	native	
Cryptantha rostellata	BORAGINACEAE	RED-STEMMED CRYPTANTHA	native	
Cryptantha schoolcraftii	BORAGINACEAE	SCHOOLCRAFT'S CRYPTANTHA	native	
Cryptantha scoparia	BORAGINACEAE	GRAY CRYPTANTHA	native	
Cryptantha similis	BORAGINACEAE	DOME CRYPTANTHA	native	
Cryptantha simulans	BORAGINACEAE	PINE CRYPTANTHA	native	
Cryptantha sparsiflora	BORAGINACEAE	FEW-FLOWERED CRYPTANTHA	native	
Cryptantha spithamaea	BORAGINACEAE		native	
Cryptantha subretusa	BORAGINACEAE	CRATER LAKE CRYPTANTHA	native	
Cryptantha torreyana	BORAGINACEAE		native	
Cryptantha torreyana var. pumila	BORAGINACEAE	DWARF CRYPTANTHA	native	
Cryptantha torreyana var. torreyana	BORAGINACEAE	TORREY'S CRYPTANTHA	native	
Cryptantha traskiae	BORAGINACEAE	TRASK'S CRYPTANTHA	native	
Cryptantha tumulosa	BORAGINACEAE	NEW YORK MOUNTAINS CRYPTANTHA	native	
Cryptantha utahensis	BORAGINACEAE	SCENTED CRYPTANTHA	native	
Cryptantha virginensis	BORAGINACEAE	VIRGIN RIVER CRYPTANTHA	native	
Cryptantha watsonii	BORAGINACEAE	WATSON'S CRYPTANTHA	native	
Cryptantha wigginsii	BORAGINACEAE		native	acceptance uncertain
Cryptogramma acrostichoides	PTERIDACEAE	AMERICAN PARSLEY FERN	native	
Cryptogramma cascadensis	PTERIDACEAE	CASCADE PARSLEY FERN	native	
Cucumis melo	CUCURBITACEAE		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	FIELD PUMPKIN	naturalized	acceptance uncertain
Cuniculotinus gramineus	ASTERACEAE		native	
Cupaniopsis anacardioides	SAPINDACEAE		naturalized	acceptance uncertain
Cuscuta approximata	CONVOLVULACEAE	ALFALFA DODDER	naturalized	
Cuscuta brachycalyx	CONVOLVULACEAE		native	
Cuscuta californica	CONVOLVULACEAE	CHAPARRAL DODDER	native	
Cuscuta californica var. apiculata	CONVOLVULACEAE		native	
Cuscuta californica var. californica	CONVOLVULACEAE		native	
Cuscuta californica var. papillosa	CONVOLVULACEAE		native	
Cuscuta campestris	CONVOLVULACEAE	FIELD DODDER	native	
Cuscuta cephalanthi	CONVOLVULACEAE	BUTTONBUSH DODDER	native	
Cuscuta denticulata	CONVOLVULACEAE	SMALL-TOOTH DODDER	native	
Cuscuta howelliana	CONVOLVULACEAE	BOGGS LAKE DODDER	native	
Cuscuta indecora	CONVOLVULACEAE		native	
Cuscuta indecora var. indecora	CONVOLVULACEAE	LARGE-SEEDED DODDER	native	
Cuscuta jepsonii	CONVOLVULACEAE		native	
Cuscuta nevadensis	CONVOLVULACEAE		native	
Cuscuta occidentalis	CONVOLVULACEAE		native	
Cuscuta pacifica	CONVOLVULACEAE	GOLDENTHREAD	native	
Cuscuta pacifica var. pacifica	CONVOLVULACEAE		native	
Cuscuta pacifica var. papillata	CONVOLVULACEAE		native	
Cuscuta salina	CONVOLVULACEAE	SALT DODDER	native	
Cuscuta subinclusa	CONVOLVULACEAE		native	
Cuscuta suksdorfii	CONVOLVULACEAE	MOUNTAIN DODDER	native	
Cusickiella douglasii	BRASSICACEAE		native	
Cusickiella quadricostata	BRASSICACEAE	BODIE HILLS CUSICKIELLA	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		naturalized	
Cyclospermum leptophyllum	APIACEAE		naturalized	
Cydonia oblonga	ROSACEAE		naturalized	acceptance uncertain
Cylindropuntia	CACTACEAE	PINK TEDDY-BEAR CHOLLA	native	
Cylindropuntia acanthocarpa	CACTACEAE		native	
Cylindropuntia acanthocarpa var. coloradensis	CACTACEAE	BUCKHORN CHOLLA	native	
Cylindropuntia bigelovii	CACTACEAE	TEDDY-BEAR CHOLLA	native	
Cylindropuntia californica	CACTACEAE		native	
Cylindropuntia californica var. californica	CACTACEAE	SNAKE CHOLLA	native	
Cylindropuntia californica var. parkeri	CACTACEAE	VALLEY CHOLLA	native	
Cylindropuntia echinocarpa	CACTACEAE	GOLDEN CHOLLA	native	
Cylindropuntia ganderi	CACTACEAE	GANDER'S CHOLLA	native	
Cylindropuntia munzii	CACTACEAE	MUNZ'S CHOLLA	native	
Cylindropuntia prolifera	CACTACEAE	COAST CHOLLA	native	
Cylindropuntia ramosissima	CACTACEAE	PENCIL CACTUS	native	
Cylindropuntia wolfii	CACTACEAE	WOLF'S CHOLLA	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	GLOBOSE CYMOPTERUS	native	
Cymopterus multinervatus	APIACEAE	PURPLE-NERVE CYMOPTERUS	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		naturalized	
Cynara cardunculus subsp. cardunculus	ASTERACEAE	ARTICHOKE	naturalized	
Cynara cardunculus subsp. flavescens	ASTERACEAE		naturalized	
Cynodon dactylon	POACEAE	BERMUDA GRASS	naturalized	
Cynoglossum grande	BORAGINACEAE	GRAND HOUND'S TONGUE	native	
Cynoglossum occidentale	BORAGINACEAE	WESTERN HOUND'S TONGUE	native	
Cynoglossum officinale	BORAGINACEAE	COMMON HOUND'S TONGUE	naturalized	
Cynosurus cristatus	POACEAE	CRESTED DOGTAIL GRASS	naturalized	
Cynosurus echinatus	POACEAE	BRISTLY DOGTAIL GRASS	naturalized	
Cyperus acuminatus	CYPERACEAE		native	
Cyperus bipartitus	CYPERACEAE		native	
Cyperus difformis	CYPERACEAE		naturalized	
Cyperus eragrostis	CYPERACEAE		native	
Cyperus erythrorhizos	CYPERACEAE		native	
Cyperus esculentus	CYPERACEAE		native	
Cyperus esculentus var. leptostachyus	CYPERACEAE		native	
Cyperus flavescens	CYPERACEAE		naturalized	
Cyperus flavicomus	CYPERACEAE		naturalized	
Cyperus fuscus	CYPERACEAE		naturalized	
Cyperus involucratus	CYPERACEAE		naturalized	
Cyperus iria	CYPERACEAE		naturalized	
Cyperus laevigatus	CYPERACEAE		native	
Cyperus niger	CYPERACEAE		native	
Cyperus odoratus	CYPERACEAE		native	
Cyperus parishii	CYPERACEAE		native	
Cyperus prolifer	CYPERACEAE		naturalized	acceptance uncertain
Cyperus rotundus	CYPERACEAE	PURPLE NUTSEDGE	naturalized	
Cyperus squarrosus	CYPERACEAE		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	NORTHERN SMALL YELLOW LADY'S-SLIPPER	native	
Cypselea humifusa	AIZOACEAE		naturalized	
Cyrtomium falcatum	DRYOPTERIDACEAE		naturalized	
Cystopteris fragilis	WOODSIACEAE		native	
Cytisus multiflorus	FABACEAE	PORTUGUESE BROOM	naturalized	
Cytisus proliferus	FABACEAE	TREE LUCERNE	naturalized	
Cytisus scoparius	FABACEAE	SCOTCH BROOM	naturalized	
Cytisus striatus	FABACEAE		naturalized	
Dactylis glomerata	POACEAE		naturalized	
Dactyloctenium aegyptium	POACEAE	DURBAN CROWFOOT	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 OAT GRASS	native	
Danthonia intermedia	POACEAE		native	
Danthonia intermedia subsp. intermedia	POACEAE	INTERMEDIATE OAT GRASS	native	
Danthonia unispicata	POACEAE	ONE-SPIKE OAT GRASS	native	
Darlingtonia californica	SARRACENIACEAE		native	
Darmera peltata	SAXIFRAGACEAE		native	
Dasiphora fruticosa	ROSACEAE	SHRUBBY CINQUEFOIL	native	
Dasyochloa pulchella	POACEAE		native	
Datisca glomerata	DATISCACEAE	DURANGO ROOT	native	
Datura discolor	SOLANACEAE		native	
Datura ferox	SOLANACEAE		naturalized	
Datura stramonium	SOLANACEAE		naturalized	
Datura wrightii	SOLANACEAE		native	
Daucus carota	APIACEAE	QUEEN ANNE'S LACE	naturalized	
Daucus pusillus	APIACEAE		native	
Dedeckera eurekensis	POLYGONACEAE	JULY GOLD	native	
Deinandra arida	ASTERACEAE	RED ROCK TARPLANT	native	
Deinandra bacigalupii	ASTERACEAE	LIVERMORE TARPLANT	native	
Deinandra clementina	ASTERACEAE	ISLAND TARPLANT	native	
Deinandra conjugens	ASTERACEAE	OTAY TARPLANT	native	
Deinandra corymbosa	ASTERACEAE		native	
Deinandra corymbosa subsp. corymbosa	ASTERACEAE		native	
Deinandra corymbosa subsp. macrocephala	ASTERACEAE		native	
Deinandra fasciculata	ASTERACEAE		native	
Deinandra floribunda	ASTERACEAE	TECATE TARPLANT	native	
Deinandra halliana	ASTERACEAE	HALL'S TARPLANT	native	
Deinandra increscens	ASTERACEAE		native	
Deinandra increscens subsp. increscens	ASTERACEAE		native	
Deinandra increscens subsp. villosa	ASTERACEAE	GAVIOTA TARPLANT	native	
Deinandra kelloggii	ASTERACEAE		native	
Deinandra lobbii	ASTERACEAE		native	
Deinandra minthornii	ASTERACEAE	SANTA SUSANA TARPLANT	native	
Deinandra mohavensis	ASTERACEAE	MOJAVE TARPLANT	native	
Deinandra pallida	ASTERACEAE		native	
Deinandra paniculata	ASTERACEAE	PANICULATE TARPLANT	native	
Deinandra pentactis	ASTERACEAE		native	
Delairea odorata	ASTERACEAE		naturalized	
Delosperma litorale	AIZOACEAE		naturalized	
Delphinium andersonii	RANUNCULACEAE	ANDERSON'S LARKSPUR	native	
Delphinium antoninum	RANUNCULACEAE	ANTHONY PEAK LARKSPUR	native	
Delphinium bakeri	RANUNCULACEAE	BAKER'S LARKSPUR	native	
Delphinium californicum	RANUNCULACEAE		native	
Delphinium californicum subsp. californicum	RANUNCULACEAE	CALIFORNIA LARKSPUR	native	
Delphinium californicum subsp. interius	RANUNCULACEAE	HOSPITAL CANYON LARKSPUR	native	
Delphinium cardinale	RANUNCULACEAE	SCARLET LARKSPUR	native	
Delphinium decorum	RANUNCULACEAE		native	
Delphinium decorum subsp. decorum	RANUNCULACEAE	COAST LARKSPUR	native	
Delphinium decorum subsp. tracyi	RANUNCULACEAE	TRACY'S LARKSPUR	native	
Delphinium depauperatum	RANUNCULACEAE	MOUNTAIN LARKSPUR	native	
Delphinium glaucum	RANUNCULACEAE	TALL LARKSPUR	native	
Delphinium gracilentum	RANUNCULACEAE	GREENE'S LARKSPUR	native	
Delphinium gypsophilum	RANUNCULACEAE	GYPSUM-LOVING LARKSPUR	native	
Delphinium hansenii	RANUNCULACEAE		native	
Delphinium hansenii subsp. ewanianum	RANUNCULACEAE	EWAN'S LARKSPUR	native	
Delphinium hansenii subsp. hansenii	RANUNCULACEAE	HANSEN'S LARKSPUR	native	
Delphinium hansenii subsp. kernense	RANUNCULACEAE	KERN COUNTY LARKSPUR	native	
Delphinium hesperium	RANUNCULACEAE		native	
Delphinium hesperium subsp. cuyamacae	RANUNCULACEAE	CUYAMACA LARKSPUR	native	
Delphinium hesperium subsp. hesperium	RANUNCULACEAE	WESTERN LARKSPUR	native	
Delphinium hesperium subsp. pallescens	RANUNCULACEAE	PALE-FLOWERED WESTERN LARKSPUR	native	
Delphinium hutchinsoniae	RANUNCULACEAE	HUTCHINSON'S LARKSPUR	native	
Delphinium inopinum	RANUNCULACEAE	UNEXPECTED LARKSPUR	native	
Delphinium luteum	RANUNCULACEAE	GOLDEN LARKSPUR	native	
Delphinium nudicaule	RANUNCULACEAE	ORANGE LARKSPUR	native	
Delphinium nuttallianum	RANUNCULACEAE	SONNE'S LARKSPUR	native	
Delphinium parishii	RANUNCULACEAE		native	
Delphinium parishii subsp. pallidum	RANUNCULACEAE	PALE-FLOWERED PARISH'S LARKSPUR	native	
Delphinium parishii subsp. parishii	RANUNCULACEAE	MOJAVE LARKSPUR	native	
Delphinium parishii subsp. subglobosum	RANUNCULACEAE	COLORADO DESERT LARKSPUR	native	
Delphinium parryi	RANUNCULACEAE		native	
Delphinium parryi subsp. blochmaniae	RANUNCULACEAE	DUNE LARKSPUR	native	
Delphinium parryi subsp. eastwoodiae	RANUNCULACEAE	EASTWOOD'S LARKSPUR	native	
Delphinium parryi subsp. maritimum	RANUNCULACEAE	MARITIME LARKSPUR	native	
Delphinium parryi subsp. parryi	RANUNCULACEAE	PARRY'S LARKSPUR	native	
Delphinium parryi subsp. purpureum	RANUNCULACEAE	MOUNT PINOS LARKSPUR	native	
Delphinium patens	RANUNCULACEAE	ZIGZAG LARKSPUR	native	
Delphinium patens subsp. hepaticoideum	RANUNCULACEAE		native	
Delphinium patens subsp. montanum	RANUNCULACEAE		native	
Delphinium patens subsp. patens	RANUNCULACEAE		native	
Delphinium polycladon	RANUNCULACEAE	HIGH MOUNTAIN LARKSPUR	native	
Delphinium purpusii	RANUNCULACEAE	ROSE-FLOWERED LARKSPUR	native	
Delphinium recurvatum	RANUNCULACEAE	RECURVED LARKSPUR	native	
Delphinium scaposum	RANUNCULACEAE	BARE-STEM LARKSPUR	native	
Delphinium stachydeum	RANUNCULACEAE	SPIKED LARKSPUR	native	
Delphinium trolliifolium	RANUNCULACEAE	POISON LARKSPUR	native	
Delphinium uliginosum	RANUNCULACEAE	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		native	
Dendromecon harfordii	PAPAVERACEAE	CHANNEL ISLAND TREE POPPY	native	
Dendromecon rigida	PAPAVERACEAE	BUSH POPPY	native	
Deschampsia cespitosa	POACEAE	TUFTED HAIR GRASS	native	
Deschampsia cespitosa subsp. beringensis	POACEAE		native	
Deschampsia cespitosa subsp. cespitosa	POACEAE		native	
Deschampsia cespitosa subsp. holciformis	POACEAE		native	
Deschampsia danthonioides	POACEAE	ANNUAL HAIR GRASS	native	
Deschampsia elongata	POACEAE	SLENDER HAIR GRASS	native	
Descurainia adenophora	BRASSICACEAE		native	
Descurainia californica	BRASSICACEAE		native	
Descurainia incana	BRASSICACEAE		native	
Descurainia incisa	BRASSICACEAE		native	
Descurainia incisa subsp. incisa	BRASSICACEAE		native	
Descurainia longipedicellata	BRASSICACEAE		native	
Descurainia nelsonii	BRASSICACEAE		native	
Descurainia paradisa	BRASSICACEAE		native	
Descurainia pinnata	BRASSICACEAE		native	
Descurainia pinnata subsp. brachycarpa	BRASSICACEAE		native	
Descurainia pinnata subsp. glabra	BRASSICACEAE		native	
Descurainia pinnata subsp. ochroleuca	BRASSICACEAE		native	
Descurainia sophia	BRASSICACEAE		naturalized	
Desmazeria rigida	POACEAE		naturalized	
Dianthus armeria	CARYOPHYLLACEAE		naturalized	
Dianthus armeria subsp. armeria	CARYOPHYLLACEAE	DEPTFORD PINK	naturalized	
Dianthus barbatus	CARYOPHYLLACEAE		naturalized	
Dianthus barbatus subsp. barbatus	CARYOPHYLLACEAE	SWEET-WILLIAM	naturalized	
Dianthus deltoides	CARYOPHYLLACEAE		naturalized	
Dianthus deltoides subsp. deltoides	CARYOPHYLLACEAE	MEADOW PINK	naturalized	
Dicentra formosa	PAPAVERACEAE	PACIFIC 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	FORK-TOOTHED OOKOW	native	
Dichelostemma ida-maia	THEMIDACEAE	FIRECRACKER FLOWER	native	
Dichelostemma multiflorum	THEMIDACEAE	WILD HYACINTH	native	
Dichelostemma volubile	THEMIDACEAE	SNAKE LILY	native	
Dichondra donelliana	CONVOLVULACEAE		native	
Dichondra micrantha	CONVOLVULACEAE		naturalized	
Dichondra occidentalis	CONVOLVULACEAE	WESTERN DICHONDRA	native	
Dicoria canescens	ASTERACEAE		native	
Dicranostegia orcuttiana	OROBANCHACEAE	BAJA BIRD'S-BEAK	native	
Dieteria asteroides	ASTERACEAE		native	
Dieteria asteroides var. asteroides	ASTERACEAE		native	
Dieteria asteroides var. lagunensis	ASTERACEAE	MOUNT LAGUNA ASTER	native	
Dieteria canescens	ASTERACEAE	HOARY-ASTER	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	ZIEGLER'S ASTER	native	
Digitalis purpurea	PLANTAGINACEAE		naturalized	
Digitaria californica	POACEAE		native	
Digitaria californica var. californica	POACEAE	ARIZONA COTTONTOP	native	
Digitaria ciliaris	POACEAE		naturalized	
Digitaria ciliaris var. ciliaris	POACEAE	SOUTHERN CRAB GRASS	naturalized	
Digitaria ischaemum	POACEAE	SMOOTH CRAB GRASS	naturalized	
Digitaria sanguinalis	POACEAE	HAIRY CRAB GRASS	naturalized	
Dimeresia howellii	ASTERACEAE	DOUBLET	native	
Dimorphotheca ecklonis	ASTERACEAE	BLUE & WHITE DAISYBUSH	naturalized	
Dimorphotheca fruticosa	ASTERACEAE	TRAILING AFRICAN DAISY	naturalized	
Dimorphotheca sinuata	ASTERACEAE	NAMAQUALAND DAISY	naturalized	
Diospyros virginiana	EBENACEAE		naturalized	
Diospyros virginiana var. virginiana	EBENACEAE		naturalized	
Diplotaxis muralis	BRASSICACEAE		naturalized	
Diplotaxis tenuifolia	BRASSICACEAE		naturalized	
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 littoralis	POACEAE	SHORE GRASS	native	
Distichlis spicata	POACEAE	SALT GRASS	native	
Ditaxis claryana	EUPHORBIACEAE	GLANDULAR DITAXIS	native	
Ditaxis lanceolata	EUPHORBIACEAE		native	
Ditaxis neomexicana	EUPHORBIACEAE		native	
Ditaxis serrata	EUPHORBIACEAE		native	
Ditaxis serrata var. californica	EUPHORBIACEAE	CALIFORNIA DITAXIS	native	
Ditaxis serrata var. serrata	EUPHORBIACEAE		native	
Dithyrea californica	BRASSICACEAE		native	
Dithyrea maritima	BRASSICACEAE	BEACH SPECTACLEPOD	native	
Dittrichia graveolens	ASTERACEAE	STINKWORT	naturalized	
Dodecahema leptoceras	POLYGONACEAE	SLENDER-HORNED SPINEFLOWER	native	
Dodecatheon alpinum	PRIMULACEAE	ALPINE SHOOTING STAR	native	
Dodecatheon clevelandii	PRIMULACEAE		native	
Dodecatheon clevelandii subsp. clevelandii	PRIMULACEAE		native	
Dodecatheon clevelandii subsp. insulare	PRIMULACEAE		native	
Dodecatheon clevelandii subsp. patulum	PRIMULACEAE		native	
Dodecatheon clevelandii subsp. sanctarum	PRIMULACEAE		native	
Dodecatheon conjugens	PRIMULACEAE		native	
Dodecatheon hendersonii	PRIMULACEAE	SAILOR CAPS	native	
Dodecatheon jeffreyi	PRIMULACEAE	SIERRA SHOOTING STAR	native	
Dodecatheon pulchellum	PRIMULACEAE	BEAUTIFUL SHOOTING STAR	native	
Dodecatheon redolens	PRIMULACEAE		native	
Dodecatheon subalpinum	PRIMULACEAE		native	
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	GREAT BASIN DOWNINGIA	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	DWARF DOWNINGIA	native	
Downingia willamettensis	CAMPANULACEAE		native	
Draba albertina	BRASSICACEAE		native	
Draba asterophora	BRASSICACEAE		native	
Draba aureola	BRASSICACEAE	GOLDEN ALPINE DRABA	native	
Draba breweri	BRASSICACEAE		native	
Draba californica	BRASSICACEAE	CALIFORNIA DRABA	native	
Draba cana	BRASSICACEAE	CANESCENT DRABA	native	
Draba carnosula	BRASSICACEAE	MOUNT EDDY DRABA	native	
Draba corrugata	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 lonchocarpa	BRASSICACEAE	SPEAR-FRUITED DRABA	native	
Draba longisquamosa	BRASSICACEAE		native	
Draba monoensis	BRASSICACEAE	WHITE MOUNTAINS DRABA	native	
Draba novolympica	BRASSICACEAE		native	
Draba oligosperma	BRASSICACEAE		native	
Draba praealta	BRASSICACEAE	TALL DRABA	native	
Draba pterosperma	BRASSICACEAE	WINGED-SEED DRABA	native	
Draba saxosa	BRASSICACEAE	SOUTHERN CALIFORNIA ROCK DRABA	native	
Draba sharsmithii	BRASSICACEAE	MOUNT WHITNEY DRABA	native	
Draba sierrae	BRASSICACEAE	SIERRA DRABA	native	
Draba subumbellata	BRASSICACEAE	MOUND DRABA	native	
Draba verna	BRASSICACEAE		native	
Draperia systyla	BORAGINACEAE		native	
Drosanthemum floribundum	AIZOACEAE		naturalized	
Drosera anglica	DROSERACEAE	ENGLISH SUNDEW	native	
Drosera rotundifolia	DROSERACEAE	ROUND-LEAVED SUNDEW	native	
Drymocallis cuneifolia	ROSACEAE		native	
Drymocallis cuneifolia var. cuneifolia	ROSACEAE	WEDGELEAF WOODBEAUTY	native	
Drymocallis cuneifolia var. ewanii	ROSACEAE	EWAN'S WOODBEAUTY	native	
Drymocallis glandulosa	ROSACEAE		native	
Drymocallis glandulosa var. glandulosa	ROSACEAE		native	
Drymocallis glandulosa var. reflexa	ROSACEAE		native	
Drymocallis glandulosa var. viscida	ROSACEAE		native	
Drymocallis glandulosa var. wrangelliana	ROSACEAE		native	
Drymocallis hansenii	ROSACEAE	YOSEMITE WOODBEAUTY	native	
Drymocallis lactea	ROSACEAE		native	
Drymocallis lactea var. austiniae	ROSACEAE	AUSTIN'S WOODBEAUTY	native	
Drymocallis lactea var. lactea	ROSACEAE	SIERRAN WOODBEAUTY	native	
Drymocallis pseudorupestris	ROSACEAE		native	
Drymocallis pseudorupestris var. crumiana	ROSACEAE	CRUM'S WOODBEAUTY	native	
Drymocallis pseudorupestris var. saxicola	ROSACEAE	CLIFF WOODBEAUTY	native	
Drymocallis rhomboidea	ROSACEAE		native	
Dryopteris arguta	DRYOPTERIDACEAE		native	
Dryopteris expansa	DRYOPTERIDACEAE		native	
Dryopteris filix-mas	DRYOPTERIDACEAE	MALE FERN	native	
Duchesnea indica	ROSACEAE		naturalized	
Duchesnea indica var. 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 DUDLEYA	native	
Dudleya abramsii subsp. calcicola	CRASSULACEAE	LIMESTONE DUDLEYA	native	
Dudleya abramsii subsp. murina	CRASSULACEAE	MOUSE-GRAY DUDLEYA	native	
Dudleya abramsii subsp. setchellii	CRASSULACEAE	SANTA CLARA VALLEY DUDLEYA	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	SHORTLEAVED DUDLEYA	native	
Dudleya caespitosa	CRASSULACEAE		native	
Dudleya candelabrum	CRASSULACEAE	CANDLEHOLDER DUDLEYA	native	
Dudleya cymosa	CRASSULACEAE		native	
Dudleya cymosa subsp. agourensis	CRASSULACEAE	AGOURA HILLS DUDLEYA	native	
Dudleya cymosa subsp. costatifolia	CRASSULACEAE	PIERPOINT SPRINGS DUDLEYA	native	
Dudleya cymosa subsp. crebrifolia	CRASSULACEAE	SAN GABRIEL RIVER DUDLEYA	native	
Dudleya cymosa subsp. cymosa	CRASSULACEAE		native	
Dudleya cymosa subsp. marcescens	CRASSULACEAE	MARCESCENT DUDLEYA	native	
Dudleya cymosa subsp. ovatifolia	CRASSULACEAE	SANTA MONICA 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	BLUFF LETTUCE	native	
Dudleya gnoma	CRASSULACEAE	MUNCHKIN DUDLEYA	native	
Dudleya greenei	CRASSULACEAE	GREENE'S DUDLEYA	native	
Dudleya lanceolata	CRASSULACEAE	LANCE-LEAVED DUDLEYA	native	
Dudleya multicaulis	CRASSULACEAE	MANY-STEMMED DUDLEYA	native	
Dudleya nesiotica	CRASSULACEAE	SANTA CRUZ ISLAND DUDLEYA	native	
Dudleya palmeri	CRASSULACEAE	PALMER'S DUDLEYA	native	
Dudleya parva	CRASSULACEAE	CONEJO DUDLEYA	native	
Dudleya pulverulenta	CRASSULACEAE	CHALK DUDLEYA	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		native	
Dudleya virens subsp. hassei	CRASSULACEAE		native	
Dudleya virens subsp. insularis	CRASSULACEAE	ISLAND GREEN DUDLEYA	native	
Dudleya virens subsp. virens	CRASSULACEAE	BRIGHT GREEN DUDLEYA	native	
Dudleya viscida	CRASSULACEAE	STICKY DUDLEYA	native	
Dulichium arundinaceum	CYPERACEAE		native	
Dulichium arundinaceum var. arundinaceum	CYPERACEAE	THREE-WAY SEDGE	native	
Dysphania ambrosioides	CHENOPODIACEAE	MEXICAN TEA	naturalized	
Dysphania anthelmintica	CHENOPODIACEAE	WORMSEED	naturalized	
Dysphania botrys	CHENOPODIACEAE	JERUSALEM OAK	naturalized	
Dysphania chilensis	CHENOPODIACEAE		naturalized	
Dysphania multifida	CHENOPODIACEAE		naturalized	
Dysphania pumilio	CHENOPODIACEAE		naturalized	
Dyssodia tenuiloba var. tenuiloba	ASTERACEAE		naturalized	acceptance uncertain
Eastwoodia elegans	ASTERACEAE		native	
Eatonella nivea	ASTERACEAE		native	
Echinocactus polycephalus	CACTACEAE		native	
Echinocactus polycephalus var. polycephalus	CACTACEAE		native	
Echinocereus engelmannii	CACTACEAE		native	
Echinocereus mojavensis	CACTACEAE		native	
Echinochloa colona	POACEAE		naturalized	
Echinochloa crus-galli	POACEAE		naturalized	
Echinochloa crus-pavonis	POACEAE		naturalized	
Echinochloa crus-pavonis var. crus-pavonis	POACEAE		naturalized	
Echinochloa muricata	POACEAE		native	
Echinochloa muricata var. microstachya	POACEAE		native	
Echinochloa oryzoides	POACEAE		naturalized	
Echinodorus berteroi	ALISMATACEAE		native	
Echium candicans	BORAGINACEAE	PRIDE OF MADEIRA	naturalized	
Echium pininana	BORAGINACEAE	TOWER OF JEWELS	naturalized	
Echium plantagineum	BORAGINACEAE	SALVATION JANE	naturalized	
Eclipta prostrata	ASTERACEAE	FALSE DAISY	native	
Egeria densa	HYDROCHARITACEAE		naturalized	
Ehrendorferia chrysantha	PAPAVERACEAE	GOLDEN EARDROPS	native	
Ehrendorferia ochroleuca	PAPAVERACEAE	WHITE EARDROPS	native	
Ehrharta calycina	POACEAE	PERENNIAL VELDT GRASS	naturalized	
Ehrharta erecta	POACEAE	PANIC VELDT GRASS	naturalized	
Ehrharta longiflora	POACEAE	ANNUAL VELDT GRASS	naturalized	
Eichhornia crassipes	PONTEDERIACEAE		naturalized	
Elaeagnus angustifolia	ELAEAGNACEAE	RUSSIAN OLIVE	naturalized	
Elatine ambigua	ELATINACEAE		naturalized	
Elatine brachysperma	ELATINACEAE		native	
Elatine californica	ELATINACEAE		native	
Elatine chilensis	ELATINACEAE		native	
Elatine heterandra	ELATINACEAE		native	
Elatine rubella	ELATINACEAE		native	
Eleocharis acicularis	CYPERACEAE	NEEDLE SPIKERUSH	native	
Eleocharis acicularis var. acicularis	CYPERACEAE		native	
Eleocharis acicularis var. gracilescens	CYPERACEAE		native	
Eleocharis acicularis var. occidentalis	CYPERACEAE		native	
Eleocharis atropurpurea	CYPERACEAE		native	
Eleocharis bella	CYPERACEAE		native	
Eleocharis bernardina	CYPERACEAE		native	
Eleocharis bolanderi	CYPERACEAE		native	
Eleocharis coloradoensis	CYPERACEAE		native	
Eleocharis decumbens	CYPERACEAE		native	
Eleocharis engelmannii	CYPERACEAE		native	
Eleocharis engelmannii var. detonsa	CYPERACEAE		native	
Eleocharis engelmannii var. engelmannii	CYPERACEAE		native	
Eleocharis flavescens	CYPERACEAE		native	
Eleocharis flavescens var. flavescens	CYPERACEAE		native	
Eleocharis geniculata	CYPERACEAE		native	
Eleocharis macrostachya	CYPERACEAE		native	
Eleocharis montevidensis	CYPERACEAE		native	
Eleocharis obtusa	CYPERACEAE		native	
Eleocharis ovata	CYPERACEAE		native	
Eleocharis pachycarpa	CYPERACEAE		naturalized	
Eleocharis palustris	CYPERACEAE		native	
Eleocharis parishii	CYPERACEAE		native	
Eleocharis parvula	CYPERACEAE	SMALL SPIKERUSH	native	
Eleocharis quadrangulata	CYPERACEAE	SQUARESTEM SPIKERUSH	naturalized	
Eleocharis quinqueflora	CYPERACEAE		native	
Eleocharis radicans	CYPERACEAE		native	
Eleocharis rostellata	CYPERACEAE		native	
Eleocharis suksdorfiana	CYPERACEAE		native	
Eleocharis torticulmis	CYPERACEAE	CALIFORNIA TWISTED SPIKERUSH	native	
Eleusine coracana	POACEAE		naturalized	
Eleusine coracana subsp. africana	POACEAE	AFRICAN FINGER MILLET	naturalized	
Eleusine indica	POACEAE	INDIA GOOSE GRASS	naturalized	
Eleusine tristachya	POACEAE	THREE-SPIKED GOOSE GRASS	naturalized	
Elodea bifoliata	HYDROCHARITACEAE	TWO-LEAF WATERWEED	native	
Elodea canadensis	HYDROCHARITACEAE	COMMON WATERWEED	native	
Elodea nuttallii	HYDROCHARITACEAE	NUTTALL'S WATERWEED	native	
Elymus californicus	POACEAE	CALIFORNIA BOTTLE-BRUSH GRASS	native	
Elymus caput-medusae	POACEAE	MEDUSA HEAD	naturalized	
Elymus cinereus	POACEAE	GREAT BASIN WILD-RYE	native	
Elymus condensatus	POACEAE	GIANT WILD-RYE	native	
Elymus elymoides	POACEAE	SQUIRRELTAIL	native	
Elymus elymoides var. brevifolius	POACEAE		native	
Elymus elymoides var. californicus	POACEAE		native	
Elymus elymoides var. elymoides	POACEAE		native	
Elymus farctus	POACEAE		naturalized	
Elymus farctus subsp. boreo-atlanticus	POACEAE		naturalized	
Elymus glaucus	POACEAE	WESTERN WILD-RYE	native	
Elymus glaucus subsp. glaucus	POACEAE		native	
Elymus glaucus subsp. virescens	POACEAE		native	
Elymus hispidus	POACEAE		naturalized	
Elymus lanceolatus	POACEAE		native	
Elymus lanceolatus subsp. lanceolatus	POACEAE	THICK-SPIKE WHEAT GRASS	native	
Elymus mollis subsp. mollis	POACEAE	SEA LYME GRASS	native	
Elymus multisetus	POACEAE	BIG SQUIRRELTAIL	native	
Elymus pacificus	POACEAE	PACIFIC WILD-RYE	native	
Elymus ponticus	POACEAE	TALL WHEAT GRASS	naturalized	
Elymus repens	POACEAE	QUACK GRASS	naturalized	
Elymus salina	POACEAE	SALINA PASS WILD-RYE	native	
Elymus scribneri	POACEAE	SCRIBNER'S WHEAT GRASS	native	
Elymus sierrae	POACEAE		native	
Elymus smithii	POACEAE	WESTERN WHEAT GRASS	native	
Elymus spicatus	POACEAE	BLUE BUNCH WHEAT GRASS	native	
Elymus stebbinsii	POACEAE	STEBBINS' WHEAT GRASS	native	
Elymus trachycaulus	POACEAE		native	
Elymus trachycaulus subsp. trachycaulus	POACEAE	SLENDER WHEAT GRASS	native	
Elymus triticoides	POACEAE	BEARDLESS WILD RYE	native	
Emex australis	POLYGONACEAE	SOUTHERN 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	ERICACEAE	BLACK CROWBERRY	native	
Encelia actoni	ASTERACEAE		native	
Encelia californica	ASTERACEAE		native	
Encelia farinosa	ASTERACEAE	BRITTLEBUSH	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	WESTERN RUE-ANEMONE	native	
Enemion stipitatum	RANUNCULACEAE	SISKIYOU RUE-ANEMONE	native	
Enneapogon desvauxii	POACEAE	NINE-AWNED PAPPUS GRASS	native	
Ephedra aspera	EPHEDRACEAE	BOUNDARY EPHEDRA	native	
Ephedra californica	EPHEDRACEAE	DESERT TEA	native	
Ephedra foeminea	EPHEDRACEAE		naturalized	
Ephedra funerea	EPHEDRACEAE	DEATH VALLEY EPHEDRA	native	
Ephedra nevadensis	EPHEDRACEAE	NEVADA EPHEDRA	native	
Ephedra trifurca	EPHEDRACEAE	LONGLEAF EPHEDRA	native	
Ephedra viridis	EPHEDRACEAE	GREEN EPHEDRA	native	
Epilobium anagallidifolium	ONAGRACEAE		native	
Epilobium brachycarpum	ONAGRACEAE		native	
Epilobium campestre	ONAGRACEAE		native	
Epilobium canum	ONAGRACEAE	ZAUSCHNERIA	native	
Epilobium canum subsp. canum	ONAGRACEAE		native	
Epilobium canum subsp. garrettii	ONAGRACEAE		native	
Epilobium canum subsp. latifolium	ONAGRACEAE		native	
Epilobium ciliatum	ONAGRACEAE		native	
Epilobium ciliatum subsp. ciliatum	ONAGRACEAE		native	
Epilobium ciliatum subsp. glandulosum	ONAGRACEAE		native	
Epilobium ciliatum subsp. watsonii	ONAGRACEAE		native	
Epilobium clavatum	ONAGRACEAE		native	
Epilobium cleistogamum	ONAGRACEAE		native	
Epilobium densiflorum	ONAGRACEAE		native	
Epilobium foliosum	ONAGRACEAE		native	
Epilobium glaberrimum	ONAGRACEAE		native	
Epilobium glaberrimum subsp. fastigiatum	ONAGRACEAE		native	
Epilobium glaberrimum subsp. glaberrimum	ONAGRACEAE		native	
Epilobium hallianum	ONAGRACEAE		native	
Epilobium hornemannii	ONAGRACEAE		native	
Epilobium hornemannii subsp. hornemannii	ONAGRACEAE		native	
Epilobium howellii	ONAGRACEAE	SUBALPINE FIREWEED	native	
Epilobium lactiflorum	ONAGRACEAE		native	
Epilobium leptophyllum	ONAGRACEAE		naturalized	
Epilobium luteum	ONAGRACEAE	YELLOW WILLOWHERB	native	
Epilobium minutum	ONAGRACEAE		native	
Epilobium nivium	ONAGRACEAE	SNOW MOUNTAIN WILLOWHERB	native	
Epilobium obcordatum	ONAGRACEAE		native	
Epilobium oreganum	ONAGRACEAE	OREGON FIREWEED	native	
Epilobium oregonense	ONAGRACEAE		native	
Epilobium pallidum	ONAGRACEAE		native	
Epilobium palustre	ONAGRACEAE	MARSH WILLOWHERB	native	
Epilobium rigidum	ONAGRACEAE	SISKIYOU MOUNTAINS WILLOWHERB	native	
Epilobium saximontanum	ONAGRACEAE		native	
Epilobium septentrionale	ONAGRACEAE	HUMBOLDT COUNTY FUCHSIA	native	
Epilobium siskiyouense	ONAGRACEAE	SISKIYOU FIREWEED	native	
Epilobium torreyi	ONAGRACEAE		native	
Epipactis gigantea	ORCHIDACEAE	STREAM ORCHID	native	
Epipactis helleborine	ORCHIDACEAE	BROAD-LEAVED HELLEBORINE	naturalized	
Equisetum arvense	EQUISETACEAE	COMMON HORSETAIL	native	
Equisetum hyemale	EQUISETACEAE		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		native	
Equisetum telmateia subsp. braunii	EQUISETACEAE	GIANT HORSETAIL	native	
Eragrostis barrelieri	POACEAE	MEDITERRANEAN LOVE GRASS	naturalized	
Eragrostis cilianensis	POACEAE	STINK GRASS	naturalized	
Eragrostis curvula	POACEAE	WEEPING LOVE GRASS	naturalized	
Eragrostis hypnoides	POACEAE	CREEPING LOVE GRASS	native	
Eragrostis lehmanniana	POACEAE	LEHMANN'S LOVE GRASS	naturalized	
Eragrostis lutescens	POACEAE	SIX-WEEKS LOVE GRASS	native	
Eragrostis mexicana	POACEAE		native	
Eragrostis mexicana subsp. mexicana	POACEAE	MEXICAN LOVE GRASS	native	
Eragrostis mexicana subsp. virescens	POACEAE	CHILEAN LOVE GRASS	native	
Eragrostis minor	POACEAE	LITTLE LOVE GRASS	naturalized	
Eragrostis pectinacea	POACEAE		native	
Eragrostis pectinacea var. miserrima	POACEAE	GULF LOVE GRASS	native	
Eragrostis pectinacea var. pectinacea	POACEAE	CAROLINA LOVE GRASS	native	
Eragrostis pilosa	POACEAE		naturalized	
Eragrostis pilosa var. pilosa	POACEAE		naturalized	
Eremalche exilis	MALVACEAE	WHITE MALLOW	native	
Eremalche parryi	MALVACEAE		native	
Eremalche parryi subsp. kernensis	MALVACEAE	KERN MALLOW	native	
Eremalche parryi subsp. parryi	MALVACEAE	PARRY'S MALLOW	native	
Eremalche rotundifolia	MALVACEAE	DESERT FIVESPOT	native	
Eremogone aculeata	CARYOPHYLLACEAE	PRICKLY SANDWORT	native	
Eremogone cliftonii	CARYOPHYLLACEAE	CLIFTON'S SANDWORT	native	
Eremogone congesta	CARYOPHYLLACEAE	BALLHEAD SANDWORT	native	
Eremogone congesta var. charlestonensis	CARYOPHYLLACEAE	CHARLESTON SANDWORT	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	SUFFRUTESCENT SANDWORT	native	
Eremogone ferrisiae	CARYOPHYLLACEAE	FERRIS' SANDWORT	native	
Eremogone kingii	CARYOPHYLLACEAE		native	
Eremogone kingii var. glabrescens	CARYOPHYLLACEAE	KING'S SANDWORT	native	
Eremogone macradenia	CARYOPHYLLACEAE	DESERT SANDWORT	native	
Eremogone macradenia var. arcuifolia	CARYOPHYLLACEAE		native	
Eremogone macradenia var. macradenia	CARYOPHYLLACEAE		native	
Eremogone ursina	CARYOPHYLLACEAE	BIG BEAR VALLEY SANDWORT	native	
Eremothera boothii	ONAGRACEAE		native	
Eremothera boothii subsp. alyssoides	ONAGRACEAE	PINE CREEK EVENING-PRIMROSE	native	
Eremothera boothii subsp. boothii	ONAGRACEAE	BOOTH'S EVENING-PRIMROSE	native	
Eremothera boothii subsp. condensata	ONAGRACEAE		native	
Eremothera boothii subsp. decorticans	ONAGRACEAE	SHREDDING EVENING-PRIMROSE	native	
Eremothera boothii subsp. desertorum	ONAGRACEAE		native	
Eremothera boothii subsp. intermedia	ONAGRACEAE	BOOTH'S HAIRY EVENING-PRIMROSE	native	
Eremothera chamaenerioides	ONAGRACEAE		native	
Eremothera minor	ONAGRACEAE	NELSON'S EVENING-PRIMROSE	native	
Eremothera refracta	ONAGRACEAE		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 harwoodii	POLEMONIACEAE		native	
Eriastrum hooveri	POLEMONIACEAE	HOOVER'S ERIASTRUM	native	
Eriastrum luteum	POLEMONIACEAE	YELLOW-FLOWERED ERIASTRUM	native	
Eriastrum pluriflorum	POLEMONIACEAE		native	
Eriastrum pluriflorum subsp. pluriflorum	POLEMONIACEAE	MANY-FLOWERED ERIASTRUM	native	
Eriastrum pluriflorum subsp. sherman-hoytiae	POLEMONIACEAE		native	
Eriastrum sapphirinum	POLEMONIACEAE		native	
Eriastrum sapphirinum subsp. dasyanthum	POLEMONIACEAE		native	
Eriastrum sapphirinum subsp. sapphirinum	POLEMONIACEAE		native	
Eriastrum signatum	POLEMONIACEAE		native	
Eriastrum sparsiflorum	POLEMONIACEAE		native	
Eriastrum sparsiflorum subsp. harwoodii	POLEMONIACEAE		native	
Eriastrum virgatum	POLEMONIACEAE	VIRGATE ERIASTRUM	native	
Eriastrum wilcoxii	POLEMONIACEAE		native	
Erica lusitanica	ERICACEAE		naturalized	
Ericameria albida	ASTERACEAE	WHITE-FLOWERED RABBITBRUSH	native	
Ericameria arborescens	ASTERACEAE	GOLDEN-FLEECE	native	
Ericameria bloomeri	ASTERACEAE	BLOOMER'S GOLDENBUSH	native	
Ericameria brachylepis	ASTERACEAE	BOUNDARY GOLDENBUSH	native	
Ericameria cooperi	ASTERACEAE		native	
Ericameria cooperi var. cooperi	ASTERACEAE	COOPER'S GOLDENBUSH	native	
Ericameria cuneata	ASTERACEAE	WEDGELEAF GOLDENBUSH	native	
Ericameria cuneata var. cuneata	ASTERACEAE	CLIFF GOLDENBUSH	native	
Ericameria cuneata var. macrocephala	ASTERACEAE	LAGUNA MOUNTAINS GOLDENBUSH	native	
Ericameria cuneata var. spathulata	ASTERACEAE		native	
Ericameria discoidea	ASTERACEAE	WHITESTEM GOLDENBUSH	native	
Ericameria ericoides	ASTERACEAE	CALIFORNIA GOLDENBUSH	native	
Ericameria fasciculata	ASTERACEAE	EASTWOOD'S GOLDENBUSH	native	
Ericameria gilmanii	ASTERACEAE	GILMAN'S GOLDENBUSH	native	
Ericameria greenei	ASTERACEAE	GREENE'S GOLDENBUSH	native	
Ericameria laricifolia	ASTERACEAE	TURPENTINE-BRUSH	native	
Ericameria linearifolia	ASTERACEAE	INTERIOR GOLDENBUSH	native	
Ericameria nana	ASTERACEAE	DWARF GOLDENBUSH	native	
Ericameria nauseosa	ASTERACEAE	RUBBER RABBITBRUSH	native	
Ericameria nauseosa var. bernardina	ASTERACEAE	BERNARDINA RABBITBRUSH	native	
Ericameria nauseosa var. ceruminosa	ASTERACEAE	DESERT RABBITBRUSH	native	
Ericameria nauseosa var. hololeuca	ASTERACEAE	WHITE RABBITBRUSH	native	
Ericameria nauseosa var. leiosperma	ASTERACEAE	SMOOTH-FRUIT RABBITBRUSH	native	
Ericameria nauseosa var. mohavensis	ASTERACEAE	MOJAVE RABBITBRUSH	native	
Ericameria nauseosa var. oreophila	ASTERACEAE	GREAT BASIN RABBITBRUSH	native	
Ericameria nauseosa var. speciosa	ASTERACEAE	SHOWY RABBITBRUSH	native	
Ericameria nauseosa var. washoensis	ASTERACEAE	WASHOE RABBITBRUSH	native	
Ericameria ophitidis	ASTERACEAE	SERPENTINE GOLDENBUSH	native	
Ericameria palmeri	ASTERACEAE		native	
Ericameria palmeri var. pachylepis	ASTERACEAE	THICKBRACTED GOLDENBUSH	native	
Ericameria palmeri var. palmeri	ASTERACEAE	PALMER'S GOLDENBUSH	native	
Ericameria paniculata	ASTERACEAE	BLACK-BANDED RABBITBRUSH	native	
Ericameria parishii	ASTERACEAE		native	
Ericameria parishii var. parishii	ASTERACEAE	PARISH'S GOLDENBUSH	native	
Ericameria parryi	ASTERACEAE	PARRY'S GOLDENBUSH	native	
Ericameria parryi var. aspera	ASTERACEAE	ROUGH RABBITBRUSH	native	
Ericameria parryi var. imula	ASTERACEAE	LOW RABBITBRUSH	native	
Ericameria parryi var. latior	ASTERACEAE	WIDELEAF RABBITBRUSH	native	
Ericameria parryi var. monocephala	ASTERACEAE	ONE-HEADED RABBITBRUSH	native	
Ericameria parryi var. nevadensis	ASTERACEAE	NEVADA RABBITBRUSH	native	
Ericameria parryi var. vulcanica	ASTERACEAE	VULCAN RABBITBRUSH	native	
Ericameria pinifolia	ASTERACEAE	PINE-BUSH	native	
Ericameria suffruticosa	ASTERACEAE	SINGLEHEAD GOLDENBUSH	native	
Ericameria teretifolia	ASTERACEAE	ROUND-LEAF RABBITBRUSH	native	
Erigeron aequifolius	ASTERACEAE	HALL'S DAISY	native	
Erigeron algidus	ASTERACEAE	SIERRA FLEABANE	native	
Erigeron aliceae	ASTERACEAE	ALICE EASTWOOD'S FLEABANE	native	
Erigeron annuus	ASTERACEAE	ANNUAL FLEABANE	naturalized	
Erigeron aphanactis	ASTERACEAE	RAYLESS SHAGGY FLEABANE	native	
Erigeron aphanactis var. aphanactis	ASTERACEAE		native	
Erigeron aphanactis var. congestus	ASTERACEAE		native	
Erigeron argentatus	ASTERACEAE	SILVER FLEABANE	native	
Erigeron barbellulatus	ASTERACEAE	SHINING FLEABANE	native	
Erigeron biolettii	ASTERACEAE	STREAMSIDE DAISY	native	
Erigeron blochmaniae	ASTERACEAE	BLOCHMAN'S LEAFY DAISY	native	
Erigeron bloomeri	ASTERACEAE	BLOOMER'S FLEABANE	native	
Erigeron bloomeri var. bloomeri	ASTERACEAE		native	
Erigeron bloomeri var. nudatus	ASTERACEAE	WALDO DAISY	native	
Erigeron bonariensis	ASTERACEAE	FLAX-LEAVED HORSEWEED	naturalized	
Erigeron breweri	ASTERACEAE	BREWER'S FLEABANE	native	
Erigeron breweri var. bisanctus	ASTERACEAE		native	
Erigeron breweri var. breweri	ASTERACEAE		native	
Erigeron breweri var. covillei	ASTERACEAE		native	
Erigeron breweri var. jacinteus	ASTERACEAE	SAN JACINTO MOUNTAINS DAISY	native	
Erigeron breweri var. porphyreticus	ASTERACEAE		native	
Erigeron calvus	ASTERACEAE	BALD DAISY	native	
Erigeron canadensis	ASTERACEAE	HORSEWEED	native	
Erigeron cervinus	ASTERACEAE	SISKIYOU DAISY	native	
Erigeron chrysopsidis	ASTERACEAE		native	
Erigeron chrysopsidis var. austiniae	ASTERACEAE	DWARF YELLOW FLEABANE	native	
Erigeron clokeyi	ASTERACEAE		native	
Erigeron clokeyi var. pinzliae	ASTERACEAE	PINZL'S FLEABANE	native	
Erigeron compactus	ASTERACEAE	COMPACT DAISY	native	
Erigeron compositus	ASTERACEAE	CUT-LEAF FLEABANE	native	
Erigeron concinnus	ASTERACEAE		native	
Erigeron concinnus var. concinnus	ASTERACEAE	NAVAJO FLEABANE	native	
Erigeron coulteri	ASTERACEAE	COULTER'S FLEABANE	native	
Erigeron divergens	ASTERACEAE	SPREADING FLEABANE	native	
Erigeron eatonii	ASTERACEAE	EATON'S FLEABANE	native	
Erigeron eatonii var. nevadincola	ASTERACEAE	NEVADA DAISY	native	
Erigeron eatonii var. plantagineus	ASTERACEAE		native	
Erigeron eatonii var. sonnei	ASTERACEAE		native	
Erigeron elegantulus	ASTERACEAE	VOLCANIC DAISY	native	
Erigeron elmeri	ASTERACEAE	ELMER'S FLEABANE	native	
Erigeron filifolius	ASTERACEAE	THREAD-LEAF FLEABANE	native	
Erigeron flagellaris	ASTERACEAE	TRAILING FLEABANE	native	
Erigeron foliosus	ASTERACEAE	LEAFY FLEABANE	native	
Erigeron foliosus var. confinis	ASTERACEAE		native	
Erigeron foliosus var. foliosus	ASTERACEAE		native	
Erigeron foliosus var. franciscensis	ASTERACEAE		native	
Erigeron foliosus var. hartwegii	ASTERACEAE		native	
Erigeron foliosus var. mendocinus	ASTERACEAE		native	
Erigeron glacialis	ASTERACEAE	SUBALPINE FLEABANE	native	
Erigeron glacialis var. glacialis	ASTERACEAE		native	
Erigeron glacialis var. hirsutus	ASTERACEAE		native	
Erigeron glaucus	ASTERACEAE	SEASIDE DAISY	native	
Erigeron greenei	ASTERACEAE	GREENE'S NARROW-LEAVED DAISY	native	
Erigeron inornatus	ASTERACEAE	WESTERN RAYLESS FLEABANE	native	
Erigeron inornatus var. calidipetris	ASTERACEAE	HOT ROCK DAISY	native	
Erigeron inornatus var. inornatus	ASTERACEAE		native	
Erigeron inornatus var. keilii	ASTERACEAE	KEIL'S DAISY	native	
Erigeron karvinskianus	ASTERACEAE	SANTA BARBARA DAISY	naturalized	
Erigeron klamathensis	ASTERACEAE	KLAMATH FLEABANE	native	
Erigeron lassenianus	ASTERACEAE	LASSEN FLEABANE	native	
Erigeron lassenianus var. deficiens	ASTERACEAE		native	
Erigeron lassenianus var. lassenianus	ASTERACEAE		native	
Erigeron linearis	ASTERACEAE	DESERT YELLOW FLEABANE	native	
Erigeron lobatus	ASTERACEAE		native	
Erigeron lonchophyllus	ASTERACEAE	SHORT-RAYED FLEABANE	native	
Erigeron maniopotamicus	ASTERACEAE	MAD RIVER FLEABANE DAISY	native	
Erigeron mariposanus	ASTERACEAE	MARIPOSA DAISY	native	
Erigeron miser	ASTERACEAE	STARVED DAISY	native	
Erigeron multiceps	ASTERACEAE	KERN RIVER DAISY	native	
Erigeron nivalis	ASTERACEAE	SNOW FLEABANE DAISY	native	
Erigeron oxyphyllus	ASTERACEAE	WAND-LIKE FLEABANE DAISY	native	
Erigeron parishii	ASTERACEAE	PARISH'S DAISY	native	
Erigeron petrophilus	ASTERACEAE	ROCK-LOVING FLEABANE	native	
Erigeron petrophilus var. petrophilus	ASTERACEAE		native	
Erigeron petrophilus var. sierrensis	ASTERACEAE	NORTHERN SIERRA DAISY	native	
Erigeron petrophilus var. viscidulus	ASTERACEAE	KLAMATH ROCK DAISY	native	
Erigeron philadelphicus	ASTERACEAE		native	
Erigeron philadelphicus var. philadelphicus	ASTERACEAE	PHILADELPHIA FLEABANE	native	
Erigeron pumilus	ASTERACEAE		native	
Erigeron pumilus var. intermedius	ASTERACEAE	SHAGGY FLEABANE	native	
Erigeron pygmaeus	ASTERACEAE	PYGMY FLEABANE	native	
Erigeron reductus	ASTERACEAE	LITTLE RAYLESS FLEABANE	native	
Erigeron reductus var. angustatus	ASTERACEAE		native	
Erigeron reductus var. reductus	ASTERACEAE	CALIFORNIA RAYLESS DAISY	native	
Erigeron robustior	ASTERACEAE	ROBUST DAISY	native	
Erigeron sanctarum	ASTERACEAE	SAINTS' DAISY	native	
Erigeron serpentinus	ASTERACEAE	SERPENTINE DAISY	native	
Erigeron strigosus	ASTERACEAE		naturalized	
Erigeron strigosus var. strigosus	ASTERACEAE	PRAIRIE FLEABANE	naturalized	
Erigeron sumatrensis	ASTERACEAE	TROPICAL HORSEWEED	naturalized	
Erigeron supplex	ASTERACEAE	SUPPLE DAISY	native	
Erigeron tener	ASTERACEAE	THIN DAISY	native	
Erigeron uncialis	ASTERACEAE		native	
Erigeron uncialis var. uncialis	ASTERACEAE	LIMESTONE DAISY	native	
Erigeron utahensis	ASTERACEAE	UTAH DAISY	native	
Erigeron vagus	ASTERACEAE	RAMBLING FLEABANE	native	
Eriochloa acuminata	POACEAE		native	
Eriochloa acuminata var. acuminata	POACEAE	SUMMER GRASS	native	
Eriochloa aristata	POACEAE		naturalized	
Eriochloa aristata var. aristata	POACEAE	AWNED CUP GRASS	naturalized	
Eriochloa contracta	POACEAE	PRAIRIE CUP GRASS	naturalized	
Eriodictyon altissimum	BORAGINACEAE	INDIAN KNOB MOUNTAINBALM	native	
Eriodictyon angustifolium	BORAGINACEAE	NARROW-LEAVED YERBA SANTA	native	
Eriodictyon californicum	BORAGINACEAE	CALIFORNIA YERBA SANTA	native	
Eriodictyon capitatum	BORAGINACEAE	LOMPOC YERBA SANTA	native	
Eriodictyon crassifolium	BORAGINACEAE		native	
Eriodictyon crassifolium var. crassifolium	BORAGINACEAE	THICK-LEAVED YERBA SANTA	native	
Eriodictyon crassifolium var. nigrescens	BORAGINACEAE	BICOLORED YERBA SANTA	native	
Eriodictyon lobbii	BORAGINACEAE	MATTED YERBA SANTA	native	
Eriodictyon parryi	BORAGINACEAE	POODLE-DOG BUSH	native	
Eriodictyon tomentosum	BORAGINACEAE	WOOLLY YERBA SANTA	native	
Eriodictyon traskiae	BORAGINACEAE		native	
Eriodictyon traskiae subsp. smithii	BORAGINACEAE	SMITH'S YERBA SANTA	native	
Eriodictyon traskiae subsp. traskiae	BORAGINACEAE	TRASK'S YERBA SANTA	native	
Eriodictyon trichocalyx	BORAGINACEAE		native	
Eriodictyon trichocalyx var. lanatum	BORAGINACEAE	SAN DIEGO YERBA SANTA	native	
Eriodictyon trichocalyx var. trichocalyx	BORAGINACEAE	HAIRY YERBA SANTA	native	
Eriogonum alexanderae	POLYGONACEAE		native	acceptance uncertain
Eriogonum alpinum	POLYGONACEAE	TRINITY BUCKWHEAT	native	
Eriogonum ampullaceum	POLYGONACEAE	MONO WILD BUCKWHEAT	native	
Eriogonum angulosum	POLYGONACEAE	ANGLE-STEM WILD BUCKWHEAT	native	
Eriogonum apiculatum	POLYGONACEAE	SAN JACINTO WILD BUCKWHEAT	native	
Eriogonum apiculatum var. apiculatum	POLYGONACEAE		native	
Eriogonum apricum	POLYGONACEAE		native	
Eriogonum apricum var. apricum	POLYGONACEAE	IONE BUCKWHEAT	native	
Eriogonum apricum var. prostratum	POLYGONACEAE	IRISH HILL BUCKWHEAT	native	
Eriogonum arborescens	POLYGONACEAE	SANTA CRUZ ISLAND WILD BUCKWHEAT	native	
Eriogonum argillosum	POLYGONACEAE	CLAY BUCKWHEAT	native	
Eriogonum baileyi	POLYGONACEAE		native	
Eriogonum baileyi var. baileyi	POLYGONACEAE	BAILEY'S WILD BUCKWHEAT	native	
Eriogonum baileyi var. praebens	POLYGONACEAE	BAILEY'S WOOLLY BUCKWHEAT	native	
Eriogonum bifurcatum	POLYGONACEAE	FORKED BUCKWHEAT	native	
Eriogonum brachyanthum	POLYGONACEAE	SHORT-FLOWER WILD BUCKWHEAT	native	
Eriogonum brachypodum	POLYGONACEAE	PARRY'S WILD BUCKWHEAT	native	
Eriogonum breedlovei	POLYGONACEAE		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	MATTED WILD BUCKWHEAT	native	
Eriogonum callistum	POLYGONACEAE	TEHACHAPI BUCKWHEAT	native	
Eriogonum cedrorum	POLYGONACEAE	THE CEDARS BUCKWHEAT	native	
Eriogonum cernuum	POLYGONACEAE	NODDING WILD BUCKWHEAT	native	
Eriogonum cinereum	POLYGONACEAE	COASTAL WILD BUCKWHEAT	native	
Eriogonum cithariforme	POLYGONACEAE		native	
Eriogonum cithariforme var. agninum	POLYGONACEAE	SANTA YNEZ WILD BUCKWHEAT	native	
Eriogonum cithariforme var. cithariforme	POLYGONACEAE	CITHARA WILD BUCKWHEAT	native	
Eriogonum clavatum	POLYGONACEAE	HOOVER'S DESERT TRUMPET	native	
Eriogonum collinum	POLYGONACEAE	HILL BUCKWHEAT	native	
Eriogonum compositum	POLYGONACEAE		native	
Eriogonum compositum var. compositum	POLYGONACEAE	ARROW-LEAF WILD BUCKWHEAT	native	
Eriogonum congdonii	POLYGONACEAE	CONGDON'S BUCKWHEAT	native	
Eriogonum contiguum	POLYGONACEAE	REVEAL'S BUCKWHEAT	native	
Eriogonum covilleanum	POLYGONACEAE	COVILLE'S WILD BUCKWHEAT	native	
Eriogonum crocatum	POLYGONACEAE	CONEJO BUCKWHEAT	native	
Eriogonum crosbyae	POLYGONACEAE		native	
Eriogonum dasyanthemum	POLYGONACEAE	CHAPARRAL WILD BUCKWHEAT	native	
Eriogonum davidsonii	POLYGONACEAE	DAVIDSON'S WILD BUCKWHEAT	native	
Eriogonum deflexum	POLYGONACEAE	SKELETON WEED	native	
Eriogonum deflexum var. baratum	POLYGONACEAE	TALL SKELETON WEED	native	
Eriogonum deflexum var. deflexum	POLYGONACEAE	FLAT-TOPPED SKELETON WEED	native	
Eriogonum deflexum var. nevadense	POLYGONACEAE	NEVADA SKELETON WEED	native	
Eriogonum deserticola	POLYGONACEAE	COLORADO DESERT WILD BUCKWHEAT	native	
Eriogonum diclinum	POLYGONACEAE	JAYNES CANYON BUCKWHEAT	native	
Eriogonum douglasii	POLYGONACEAE		native	
Eriogonum douglasii var. meridionale	POLYGONACEAE	SOUTHERN WILD BUCKWHEAT	native	
Eriogonum eastwoodianum	POLYGONACEAE	EASTWOOD'S BUCKWHEAT	native	
Eriogonum elatum	POLYGONACEAE		native	
Eriogonum elatum var. elatum	POLYGONACEAE	TALL WILD BUCKWHEAT	native	
Eriogonum elatum var. villosum	POLYGONACEAE	TALL WOOLLY WILD BUCKWHEAT	native	
Eriogonum elegans	POLYGONACEAE	ELEGANT WILD BUCKWHEAT	native	
Eriogonum elongatum	POLYGONACEAE		native	
Eriogonum elongatum var. elongatum	POLYGONACEAE	LONG-STEM WILD BUCKWHEAT	native	
Eriogonum eremicola	POLYGONACEAE	WILDROSE CANYON BUCKWHEAT	native	
Eriogonum esmeraldense	POLYGONACEAE		native	
Eriogonum esmeraldense var. esmeraldense	POLYGONACEAE	ESMERALDA WILD BUCKWHEAT	native	
Eriogonum evanidum	POLYGONACEAE	VANISHING WILD BUCKWHEAT	native	
Eriogonum exaltatum	POLYGONACEAE	LADDER WILD BUCKWHEAT	native	
Eriogonum fasciculatum	POLYGONACEAE	CALIFORNIA BUCKWHEAT	native	
Eriogonum fasciculatum var. fasciculatum	POLYGONACEAE	COASTAL CALIFORNIA BUCKWHEAT	native	
Eriogonum fasciculatum var. flavoviride	POLYGONACEAE	SONORAN DESERT CALIFORNIA BUCKWHEAT	native	
Eriogonum fasciculatum var. foliolosum	POLYGONACEAE	LEAFY CALIFORNIA BUCKWHEAT	native	
Eriogonum fasciculatum var. polifolium	POLYGONACEAE	MOJAVE DESERT CALIFORNIA BUCKWHEAT	native	
Eriogonum giganteum	POLYGONACEAE	ST. CATHERINE'S-LACE	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	GLANDULAR WILD BUCKWHEAT	native	
Eriogonum gossypinum	POLYGONACEAE	COTTONY BUCKWHEAT	native	
Eriogonum gracile	POLYGONACEAE		native	
Eriogonum gracile var. gracile	POLYGONACEAE	SLENDER WOOLLY WILD BUCKWHEAT	native	
Eriogonum gracile var. incultum	POLYGONACEAE	PALOMAR MOUNTAIN WILD BUCKWHEAT	native	
Eriogonum gracilipes	POLYGONACEAE	WHITE MOUNTAINS WILD BUCKWHEAT	native	
Eriogonum gracillimum	POLYGONACEAE	ROSE-AND-WHITE WILD BUCKWHEAT	native	
Eriogonum grande	POLYGONACEAE		native	
Eriogonum grande var. grande	POLYGONACEAE	ISLAND BUCKWHEAT	native	
Eriogonum grande var. rubescens	POLYGONACEAE	RED-FLOWERED BUCKWHEAT	native	
Eriogonum grande var. timorum	POLYGONACEAE	SAN NICOLAS ISLAND BUCKWHEAT	native	
Eriogonum heermannii	POLYGONACEAE		native	
Eriogonum heermannii var. argense	POLYGONACEAE	HEERMANN'S ROUGH WILD BUCKWHEAT	native	
Eriogonum heermannii var. floccosum	POLYGONACEAE	CLARK MOUNTAIN BUCKWHEAT	native	
Eriogonum heermannii var. heermannii	POLYGONACEAE	HEERMANN'S WILD BUCKWHEAT	native	
Eriogonum heermannii var. humilius	POLYGONACEAE	HEERMANN'S GREAT BASIN WILD BUCKWHEAT	native	
Eriogonum heermannii var. occidentale	POLYGONACEAE	WESTERN HEERMANN'S BUCKWHEAT	native	
Eriogonum heermannii var. sulcatum	POLYGONACEAE	HEERMANN'S GROOVED WILD BUCKWHEAT	native	
Eriogonum heracleoides	POLYGONACEAE		native	
Eriogonum heracleoides var. heracleoides	POLYGONACEAE	PARSNIP-FLOWERED BUCKWHEAT	native	
Eriogonum hirtellum	POLYGONACEAE	KLAMATH MOUNTAIN BUCKWHEAT	native	
Eriogonum hirtiflorum	POLYGONACEAE	HAIRY-FLOWER WILD BUCKWHEAT	native	
Eriogonum hoffmannii	POLYGONACEAE		native	
Eriogonum hoffmannii var. hoffmannii	POLYGONACEAE	HOFFMANN'S BUCKWHEAT	native	
Eriogonum hoffmannii var. robustius	POLYGONACEAE	ROBUST HOFFMANN'S BUCKWHEAT	native	
Eriogonum hookeri	POLYGONACEAE	HOOKER'S WILD BUCKWHEAT	native	
Eriogonum incanum	POLYGONACEAE	FROSTED WILD BUCKWHEAT	native	
Eriogonum inerme	POLYGONACEAE		native	
Eriogonum inerme var. hispidulum	POLYGONACEAE	GOODMAN'S UNARMED WILD BUCKWHEAT	native	
Eriogonum inerme var. inerme	POLYGONACEAE	UNARMED WILD BUCKWHEAT	native	
Eriogonum inflatum	POLYGONACEAE	DESERT TRUMPET	native	
Eriogonum intrafractum	POLYGONACEAE	JOINTED BUCKWHEAT	native	
Eriogonum kelloggii	POLYGONACEAE	KELLOGG'S BUCKWHEAT	native	
Eriogonum kennedyi	POLYGONACEAE		native	
Eriogonum kennedyi var. alpigenum	POLYGONACEAE	SOUTHERN ALPINE BUCKWHEAT	native	
Eriogonum kennedyi var. austromontanum	POLYGONACEAE	SOUTHERN MOUNTAIN BUCKWHEAT	native	
Eriogonum kennedyi var. kennedyi	POLYGONACEAE	KENNEDY'S WILD BUCKWHEAT	native	
Eriogonum kennedyi var. pinicola	POLYGONACEAE	KERN BUCKWHEAT	native	
Eriogonum kennedyi var. purpusii	POLYGONACEAE	PURPUS' WILD BUCKWHEAT	native	
Eriogonum latens	POLYGONACEAE	INYO WILD BUCKWHEAT	native	
Eriogonum latifolium	POLYGONACEAE	SEASIDE WILD BUCKWHEAT	native	
Eriogonum libertini	POLYGONACEAE	DUBAKELLA MOUNTAIN BUCKWHEAT	native	
Eriogonum lobbii	POLYGONACEAE	LOBB'S WILD BUCKWHEAT	native	
Eriogonum luteolum	POLYGONACEAE		native	
Eriogonum luteolum var. caninum	POLYGONACEAE	TIBURON BUCKWHEAT	native	
Eriogonum luteolum var. luteolum	POLYGONACEAE	GOLDEN-CARPET WILD BUCKWHEAT	native	
Eriogonum luteolum var. pedunculatum	POLYGONACEAE	MOKELUMNE HILL WILD BUCKWHEAT	native	
Eriogonum luteolum var. saltuarium	POLYGONACEAE	JACK'S WILD BUCKWHEAT	native	
Eriogonum maculatum	POLYGONACEAE	SPOTTED WILD BUCKWHEAT	native	
Eriogonum marifolium	POLYGONACEAE		native	
Eriogonum marifolium var. cupulatum	POLYGONACEAE	MCCLOUD WILD BUCKWHEAT	native	
Eriogonum marifolium var. marifolium	POLYGONACEAE	MARUM-LEAF WILD BUCKWHEAT	native	
Eriogonum mensicola	POLYGONACEAE	PINYON MESA BUCKWHEAT	native	
Eriogonum microthecum	POLYGONACEAE		native	
Eriogonum microthecum var. alpinum	POLYGONACEAE	NORTHERN LIMESTONE BUCKWHEAT	native	
Eriogonum microthecum var. ambiguum	POLYGONACEAE	YELLOW-FLOWERED WILD BUCKWHEAT	native	
Eriogonum microthecum var. corymbosoides	POLYGONACEAE	SAN BERNARDINO WILD BUCKWHEAT	native	
Eriogonum microthecum var. johnstonii	POLYGONACEAE	JOHNSTON'S BUCKWHEAT	native	
Eriogonum microthecum var. lacus-ursi	POLYGONACEAE	BEAR LAKE BUCKWHEAT	native	
Eriogonum microthecum var. lapidicola	POLYGONACEAE	INYO MOUNTAINS BUCKWHEAT	native	
Eriogonum microthecum var. laxiflorum	POLYGONACEAE	GREAT BASIN WILD BUCKWHEAT	native	
Eriogonum microthecum var. panamintense	POLYGONACEAE	PANAMINT MOUNTAINS BUCKWHEAT	native	
Eriogonum microthecum var. schoolcraftii	POLYGONACEAE	SCHOOLCRAFT'S WILD BUCKWHEAT	native	
Eriogonum microthecum var. simpsonii	POLYGONACEAE	SIMPSON'S WILD BUCKWHEAT	native	
Eriogonum mohavense	POLYGONACEAE	WESTERN MOJAVE WILD BUCKWHEAT	native	
Eriogonum molestum	POLYGONACEAE	PINELAND WILD BUCKWHEAT	native	
Eriogonum nervulosum	POLYGONACEAE	SNOW MOUNTAIN BUCKWHEAT	native	
Eriogonum nidularium	POLYGONACEAE	BIRDNEST WILD BUCKWHEAT	native	
Eriogonum nortonii	POLYGONACEAE	PINNACLES BUCKWHEAT	native	
Eriogonum nudum	POLYGONACEAE		native	
Eriogonum nudum var. auriculatum	POLYGONACEAE	EAR-SHAPED WILD BUCKWHEAT	native	
Eriogonum nudum var. decurrens	POLYGONACEAE	BEN LOMOND BUCKWHEAT	native	
Eriogonum nudum var. deductum	POLYGONACEAE	REDUCED WILD BUCKWHEAT	native	
Eriogonum nudum var. indictum	POLYGONACEAE	PROTRUDING BUCKWHEAT	native	
Eriogonum nudum var. murinum	POLYGONACEAE	MOUSE BUCKWHEAT	native	
Eriogonum nudum var. nudum	POLYGONACEAE	NAKED WILD BUCKWHEAT	native	
Eriogonum nudum var. oblongifolium	POLYGONACEAE	HARFORD'S WILD BUCKWHEAT	native	
Eriogonum nudum var. paralinum	POLYGONACEAE	DEL NORTE BUCKWHEAT	native	
Eriogonum nudum var. pauciflorum	POLYGONACEAE	LITTLE-FLOWER WILD BUCKWHEAT	native	
Eriogonum nudum var. psychicola	POLYGONACEAE	ANTIOCH DUNES BUCKWHEAT	native	
Eriogonum nudum var. pubiflorum	POLYGONACEAE	FREMONT'S WILD BUCKWHEAT	native	
Eriogonum nudum var. regirivum	POLYGONACEAE	KINGS RIVER BUCKWHEAT	native	
Eriogonum nudum var. scapigerum	POLYGONACEAE	SIERRAN CREST WILD BUCKWHEAT	native	
Eriogonum nudum var. westonii	POLYGONACEAE	WESTON'S WILD BUCKWHEAT	native	
Eriogonum nummulare	POLYGONACEAE	MONEY WILD BUCKWHEAT	native	
Eriogonum nutans	POLYGONACEAE		native	
Eriogonum nutans var. nutans	POLYGONACEAE	DUGWAY WILD BUCKWHEAT	native	
Eriogonum ochrocephalum	POLYGONACEAE		native	
Eriogonum ochrocephalum var. ochrocephalum	POLYGONACEAE	OCHRE-FLOWERED BUCKWHEAT	native	
Eriogonum ordii	POLYGONACEAE	FORT MOHAVE WILD BUCKWHEAT	native	
Eriogonum ovalifolium	POLYGONACEAE		native	
Eriogonum ovalifolium var. caelestinum	POLYGONACEAE	HEAVENLY WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. depressum	POLYGONACEAE	DEPRESSED WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. eximium	POLYGONACEAE	BROWN-MARGINED BUCKWHEAT	native	
Eriogonum ovalifolium var. monarchense	POLYGONACEAE	MONARCH BUCKWHEAT	native	
Eriogonum ovalifolium var. nivale	POLYGONACEAE	SIERRAN CUSHION WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. ovalifolium	POLYGONACEAE	CUSHION WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. purpureum	POLYGONACEAE	PURPLE CUSHION WILD BUCKWHEAT	native	
Eriogonum ovalifolium var. vineum	POLYGONACEAE	CUSHENBURY BUCKWHEAT	native	
Eriogonum palmerianum	POLYGONACEAE	PALMER'S WILD BUCKWHEAT	native	
Eriogonum panamintense	POLYGONACEAE	PANAMINT MOUNTAIN WILD BUCKWHEAT	native	
Eriogonum parishii	POLYGONACEAE	PARISH'S WILD BUCKWHEAT	native	
Eriogonum parvifolium	POLYGONACEAE	SEACLIFF WILD BUCKWHEAT	native	
Eriogonum pendulum	POLYGONACEAE	WALDO WILD BUCKWHEAT	native	
Eriogonum plumatella	POLYGONACEAE	YUCCA WILD BUCKWHEAT	native	
Eriogonum polypodum	POLYGONACEAE	TULARE COUNTY BUCKWHEAT	native	
Eriogonum prattenianum	POLYGONACEAE		native	
Eriogonum prattenianum var. avium	POLYGONACEAE	KETTLE DOME BUCKWHEAT	native	
Eriogonum prattenianum var. prattenianum	POLYGONACEAE	PROSTRATE BUCKWHEAT	native	
Eriogonum prociduum	POLYGONACEAE		native	
Eriogonum pusillum	POLYGONACEAE	YELLOW TURBANS	native	
Eriogonum pyrolifolium	POLYGONACEAE		native	
Eriogonum pyrolifolium var. coryphaeum	POLYGONACEAE	HAIRY SHASTA WILD BUCKWHEAT	native	
Eriogonum pyrolifolium var. pyrolifolium	POLYGONACEAE	PYROLA-LEAVED BUCKWHEAT	native	
Eriogonum reniforme	POLYGONACEAE	KIDNEY-LEAF WILD BUCKWHEAT	native	
Eriogonum rixfordii	POLYGONACEAE	PAGODA WILD BUCKWHEAT	native	
Eriogonum rosense	POLYGONACEAE		native	
Eriogonum rosense var. rosense	POLYGONACEAE	MOUNT ROSE WILD BUCKWHEAT	native	
Eriogonum roseum	POLYGONACEAE	WAND WILD BUCKWHEAT	native	
Eriogonum rupinum	POLYGONACEAE	WYMAN CREEK WILD BUCKWHEAT	native	
Eriogonum saxatile	POLYGONACEAE	HOARY WILD BUCKWHEAT	native	
Eriogonum shockleyi	POLYGONACEAE		native	
Eriogonum shockleyi var. shockleyi	POLYGONACEAE	SHOCKLEY'S BUCKWHEAT	native	
Eriogonum siskiyouense	POLYGONACEAE	SISKIYOU BUCKWHEAT	native	
Eriogonum spectabile	POLYGONACEAE	BARRON'S BUCKWHEAT	native	
Eriogonum spergulinum	POLYGONACEAE		native	
Eriogonum spergulinum var. pratense	POLYGONACEAE	MOUNTAIN MEADOW WILD BUCKWHEAT	native	
Eriogonum spergulinum var. reddingianum	POLYGONACEAE	REDDING'S WILD BUCKWHEAT	native	
Eriogonum spergulinum var. spergulinum	POLYGONACEAE	SPURRY WILD BUCKWHEAT	native	
Eriogonum sphaerocephalum	POLYGONACEAE		native	
Eriogonum sphaerocephalum var. halimioides	POLYGONACEAE	HALIMIUM WILD BUCKWHEAT	native	
Eriogonum sphaerocephalum var. sphaerocephalum	POLYGONACEAE	ROCK WILD BUCKWHEAT	native	
Eriogonum strictum	POLYGONACEAE		native	
Eriogonum strictum var. anserinum	POLYGONACEAE	GOOSE LAKE WILD BUCKWHEAT	native	
Eriogonum strictum var. greenei	POLYGONACEAE	GREENE'S BUCKWHEAT	native	
Eriogonum strictum var. proliferum	POLYGONACEAE	PROLIFEROUS WILD BUCKWHEAT	native	
Eriogonum temblorense	POLYGONACEAE	TEMBLOR BUCKWHEAT	native	
Eriogonum ternatum	POLYGONACEAE	TERNATE BUCKWHEAT	native	
Eriogonum thomasii	POLYGONACEAE	THOMAS' WILD BUCKWHEAT	native	
Eriogonum thornei	POLYGONACEAE	THORNE'S BUCKWHEAT	native	
Eriogonum thurberi	POLYGONACEAE	THURBER'S WILD BUCKWHEAT	native	
Eriogonum trichopes	POLYGONACEAE	LITTLE DESERT TRUMPET	native	
Eriogonum tripodum	POLYGONACEAE	TRIPOD BUCKWHEAT	native	
Eriogonum truncatum	POLYGONACEAE	MOUNT DIABLO BUCKWHEAT	native	
Eriogonum twisselmannii	POLYGONACEAE	TWISSELMANN'S BUCKWHEAT	native	
Eriogonum umbellatum	POLYGONACEAE	SULPHUR FLOWER	native	
Eriogonum umbellatum var. ahartii	POLYGONACEAE	AHART'S BUCKWHEAT	native	
Eriogonum umbellatum var. argus	POLYGONACEAE	ONE-EYED SULPHUR FLOWER	native	
Eriogonum umbellatum var. bahiiforme	POLYGONACEAE	BAY BUCKWHEAT	native	
Eriogonum umbellatum var. canifolium	POLYGONACEAE	SHERMAN PASS SULPHUR FLOWER	native	
Eriogonum umbellatum var. chlorothamnus	POLYGONACEAE	SHERWIN GRADE SULPHUR FLOWER	native	
Eriogonum umbellatum var. covillei	POLYGONACEAE	COVILLE'S SULPHUR FLOWER	native	
Eriogonum umbellatum var. dichrocephalum	POLYGONACEAE	BICOLOR SULPHUR FLOWER	native	
Eriogonum umbellatum var. dumosum	POLYGONACEAE	AMERICAN VALLEY SULPHUR FLOWER	native	
Eriogonum umbellatum var. furcosum	POLYGONACEAE	SIERRA NEVADA SULPHUR FLOWER	native	
Eriogonum umbellatum var. glaberrimum	POLYGONACEAE	WARNER MOUNTAINS BUCKWHEAT	native	
Eriogonum umbellatum var. goodmanii	POLYGONACEAE	GOODMAN'S SULPHUR FLOWER	native	
Eriogonum umbellatum var. humistratum	POLYGONACEAE	MOUNT EDDY BUCKWHEAT	native	
Eriogonum umbellatum var. juniporinum	POLYGONACEAE	JUNIPER SULPHUR-FLOWERED BUCKWHEAT	native	
Eriogonum umbellatum var. lautum	POLYGONACEAE	SCOTT VALLEY BUCKWHEAT	native	
Eriogonum umbellatum var. minus	POLYGONACEAE	ALPINE SULPHUR-FLOWERED BUCKWHEAT	native	
Eriogonum umbellatum var. modocense	POLYGONACEAE	MODOC SULPHUR FLOWER	native	
Eriogonum umbellatum var. munzii	POLYGONACEAE	MUNZ'S SULPHUR FLOWER	native	
Eriogonum umbellatum var. nelsoniorum	POLYGONACEAE	NELSONS' SULPHUR FLOWER	native	
Eriogonum umbellatum var. nevadense	POLYGONACEAE	NEVADA SULPHUR FLOWER	native	
Eriogonum umbellatum var. smallianum	POLYGONACEAE	SMALL'S SULPHUR FLOWER	native	
Eriogonum umbellatum var. speciosum	POLYGONACEAE	BEAUTIFUL SULPHUR FLOWER	native	
Eriogonum umbellatum var. subaridum	POLYGONACEAE	FERRIS' SULPHUR FLOWER	native	
Eriogonum umbellatum var. torreyanum	POLYGONACEAE	DONNER PASS BUCKWHEAT	native	
Eriogonum umbellatum var. versicolor	POLYGONACEAE	PANAMINT SULPHUR FLOWER	native	
Eriogonum ursinum	POLYGONACEAE		native	
Eriogonum ursinum var. erubescens	POLYGONACEAE	BLUSHING WILD BUCKWHEAT	native	
Eriogonum ursinum var. ursinum	POLYGONACEAE	BEAR VALLEY WILD BUCKWHEAT	native	
Eriogonum vestitum	POLYGONACEAE	IDRIA BUCKWHEAT	native	
Eriogonum vimineum	POLYGONACEAE	WICKER-STEM WILD BUCKWHEAT	native	
Eriogonum viridescens	POLYGONACEAE	TWO-TOOTHED WILD BUCKWHEAT	native	
Eriogonum wrightii	POLYGONACEAE	BASTARD-SAGE	native	
Eriogonum wrightii var. membranaceum	POLYGONACEAE	RINGED-STEM BASTARD-SAGE	native	
Eriogonum wrightii var. nodosum	POLYGONACEAE	KNOT-STEM BASTARD-SAGE	native	
Eriogonum wrightii var. olanchense	POLYGONACEAE	OLANCHA PEAK BUCKWHEAT	native	
Eriogonum wrightii var. subscaposum	POLYGONACEAE	SHORT-STEMMED BASTARD-SAGE	native	
Eriogonum wrightii var. trachygonum	POLYGONACEAE	ROUGH-NODE BASTARD-SAGE	native	
Eriogonum wrightii var. wrightii	POLYGONACEAE	WRIGHT'S BASTARD-SAGE	native	
Erioneuron pilosum	POACEAE	HAIRY ERIONEURON	native	
Eriophorum crinigerum	CYPERACEAE		native	
Eriophorum gracile	CYPERACEAE	SLENDER COTTONGRASS	native	
Eriophyllum ambiguum	ASTERACEAE		native	
Eriophyllum ambiguum var. ambiguum	ASTERACEAE	BEAUTIFUL WOOLLY SUNFLOWER	native	
Eriophyllum ambiguum var. paleaceum	ASTERACEAE		native	
Eriophyllum confertiflorum	ASTERACEAE	YELLOW-YARROW	native	
Eriophyllum confertiflorum var. confertiflorum	ASTERACEAE		native	
Eriophyllum confertiflorum var. tanacetiflorum	ASTERACEAE	TANSY-FLOWERED WOOLLY SUNFLOWER	native	
Eriophyllum congdonii	ASTERACEAE	CONGDON'S WOOLLY SUNFLOWER	native	
Eriophyllum jepsonii	ASTERACEAE	JEPSON'S WOOLLY SUNFLOWER	native	
Eriophyllum lanatum	ASTERACEAE	COMMON WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. achilleoides	ASTERACEAE		native	
Eriophyllum lanatum var. arachnoideum	ASTERACEAE		native	
Eriophyllum lanatum var. croceum	ASTERACEAE		native	
Eriophyllum lanatum var. grandiflorum	ASTERACEAE		native	
Eriophyllum lanatum var. hallii	ASTERACEAE	FORT TEJON WOOLLY SUNFLOWER	native	
Eriophyllum lanatum var. integrifolium	ASTERACEAE	OREGON SUNSHINE	native	
Eriophyllum lanatum var. lanceolatum	ASTERACEAE		native	
Eriophyllum lanatum var. obovatum	ASTERACEAE	SOUTHERN SIERRA WOOLLY SUNFLOWER	native	
Eriophyllum lanosum	ASTERACEAE		native	
Eriophyllum latilobum	ASTERACEAE	SAN MATEO WOOLLY SUNFLOWER	native	
Eriophyllum mohavense	ASTERACEAE	BARSTOW WOOLLY SUNFLOWER	native	
Eriophyllum multicaule	ASTERACEAE	MANY-STEM WOOLLY SUNFLOWER	native	
Eriophyllum nubigenum	ASTERACEAE	YOSEMITE WOOLLY SUNFLOWER	native	
Eriophyllum pringlei	ASTERACEAE	PRINGLE'S WOOLLY SUNFLOWER	native	
Eriophyllum staechadifolium	ASTERACEAE	SEASIDE WOOLLY SUNFLOWER	native	
Eriophyllum wallacei	ASTERACEAE	WALLACE'S WOOLLY DAISY	native	
Erodium botrys	GERANIACEAE		naturalized	
Erodium brachycarpum	GERANIACEAE		naturalized	
Erodium cicutarium	GERANIACEAE	REDSTEM FILAREE	naturalized	
Erodium malacoides	GERANIACEAE		naturalized	
Erodium moschatum	GERANIACEAE	GREENSTEM FILAREE	naturalized	
Erodium texanum	GERANIACEAE	TEXAS FILAREE	native	
Eruca vesicaria	BRASSICACEAE		naturalized	
Eruca vesicaria subsp. sativa	BRASSICACEAE		naturalized	
Eryngium alismifolium	APIACEAE	ALISMA-LEAVED BUTTON-CELERY	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	COASTAL BUTTON-CELERY	native	
Eryngium articulatum	APIACEAE	BEETHISTLE	native	
Eryngium castrense	APIACEAE	GREAT VALLEY COYOTE-THISTLE	native	
Eryngium constancei	APIACEAE	LOCH LOMOND BUTTON-CELERY	native	
Eryngium jepsonii	APIACEAE		native	
Eryngium mathiasiae	APIACEAE	MATHIAS' BUTTON-CELERY	native	
Eryngium pendletonense	APIACEAE	PENDLETON BUTTON-CELERY	native	
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	COYOTE-THISTLE	native	
Eryngium vaseyi var. vallicola	APIACEAE		native	
Eryngium vaseyi var. vaseyi	APIACEAE		native	
Erysimum ammophilum	BRASSICACEAE	SAND-LOVING WALLFLOWER	native	
Erysimum capitatum	BRASSICACEAE	WESTERN WALLFLOWER	native	
Erysimum capitatum var. capitatum	BRASSICACEAE		native	
Erysimum capitatum var. purshii	BRASSICACEAE		native	
Erysimum cheiranthoides	BRASSICACEAE	WORMSEED MUSTARD	naturalized	
Erysimum cheiri	BRASSICACEAE		naturalized	
Erysimum concinnum	BRASSICACEAE		native	
Erysimum franciscanum	BRASSICACEAE	SAN FRANCISCO WALLFLOWER	native	
Erysimum insulare	BRASSICACEAE	ISLAND WALLFLOWER	native	
Erysimum menziesii	BRASSICACEAE	MENZIES' WALLFLOWER	native	
Erysimum perenne	BRASSICACEAE		native	
Erysimum repandum	BRASSICACEAE		naturalized	
Erysimum suffrutescens	BRASSICACEAE	SUFFRUTESCENT WALLFLOWER	native	
Erysimum teretifolium	BRASSICACEAE	SANTA CRUZ WALLFLOWER	native	
Erythronium californicum	LILIACEAE		native	
Erythronium citrinum	LILIACEAE		native	
Erythronium citrinum var. citrinum	LILIACEAE	LEMON-COLORED FAWN LILY	native	
Erythronium citrinum var. roderickii	LILIACEAE	SCOTT MOUNTAINS FAWN LILY	native	
Erythronium grandiflorum	LILIACEAE		native	
Erythronium helenae	LILIACEAE	ST. HELENA FAWN LILY	native	
Erythronium hendersonii	LILIACEAE	HENDERSON'S FAWN LILY	native	
Erythronium klamathense	LILIACEAE	KLAMATH FAWN LILY	native	
Erythronium multiscapideum	LILIACEAE		native	
Erythronium oregonum	LILIACEAE	GIANT FAWN LILY	native	
Erythronium pluriflorum	LILIACEAE	SHUTEYE PEAK FAWN LILY	native	
Erythronium purpurascens	LILIACEAE		native	
Erythronium pusaterii	LILIACEAE	KAWEAH FAWN LILY	native	
Erythronium revolutum	LILIACEAE	COAST FAWN LILY	native	
Erythronium taylorii	LILIACEAE	PILOT RIDGE FAWN LILY	native	
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	RIVER RED GUM	naturalized	
Eucalyptus citriodora	MYRTACEAE	LEMON-SCENTED GUM	naturalized	
Eucalyptus cladocalyx	MYRTACEAE	SUGAR GUM	naturalized	
Eucalyptus conferruminata	MYRTACEAE	BUSHY YATE	naturalized	
Eucalyptus globulus	MYRTACEAE	BLUE GUM	naturalized	
Eucalyptus polyanthemos	MYRTACEAE	RED BOX	naturalized	
Eucalyptus pulchella	MYRTACEAE	WHITE PEPPERMINT	naturalized	
Eucalyptus sideroxylon	MYRTACEAE	RED IRON BARK	naturalized	
Eucalyptus tereticornis	MYRTACEAE	FOREST RED GUM	naturalized	
Eucalyptus viminalis	MYRTACEAE	RIBBON GUM	naturalized	
Eucephalus breweri	ASTERACEAE		native	
Eucephalus engelmannii	ASTERACEAE		native	
Eucephalus glabratus	ASTERACEAE	SISKIYOU ASTER	native	
Eucephalus ledophyllus	ASTERACEAE		native	
Eucephalus ledophyllus var. covillei	ASTERACEAE		native	
Eucephalus tomentellus	ASTERACEAE	BRICKELLBUSH ASTER	native	
Eucephalus vialis	ASTERACEAE	WAYSIDE ASTER	native	
Euchiton gymnocephalus	ASTERACEAE	CREEPING CUDWEED	naturalized	
Euchiton involucratus	ASTERACEAE	STAR COTTONLEAF	naturalized	
Euchiton sphaericus	ASTERACEAE	GLOBE COTTONLEAF	naturalized	
Euclidium syriacum	BRASSICACEAE		naturalized	
Eucnide rupestris	LOASACEAE	ANNUAL ROCK-NETTLE	native	
Eucnide urens	LOASACEAE		native	
Eucrypta chrysanthemifolia	BORAGINACEAE		native	
Eucrypta chrysanthemifolia var. bipinnatifida	BORAGINACEAE		native	
Eucrypta chrysanthemifolia var. chrysanthemifolia	BORAGINACEAE		native	
Eucrypta micrantha	BORAGINACEAE		native	
Eulobus californicus	ONAGRACEAE		native	
Euonymus occidentalis	CELASTRACEAE	WESTERN BURNING BUSH	native	
Euonymus occidentalis var. occidentalis	CELASTRACEAE		native	
Euonymus occidentalis var. parishii	CELASTRACEAE		native	
Euphorbia abramsiana	EUPHORBIACEAE		native	
Euphorbia albomarginata	EUPHORBIACEAE		native	
Euphorbia arizonica	EUPHORBIACEAE		native	
Euphorbia crenulata	EUPHORBIACEAE	CHINESE CAPS	native	
Euphorbia dendroides	EUPHORBIACEAE		naturalized	
Euphorbia eriantha	EUPHORBIACEAE	BEETLE SPURGE	native	
Euphorbia exigua	EUPHORBIACEAE		naturalized	acceptance uncertain
Euphorbia exstipulata	EUPHORBIACEAE		native	
Euphorbia exstipulata var. exstipulata	EUPHORBIACEAE	CLARK MOUNTAIN SPURGE	native	
Euphorbia fendleri	EUPHORBIACEAE		native	
Euphorbia glyptosperma	EUPHORBIACEAE		native	
Euphorbia helioscopia	EUPHORBIACEAE	WARTWEED	naturalized	
Euphorbia hooveri	EUPHORBIACEAE		native	
Euphorbia jaegeri	EUPHORBIACEAE		native	
Euphorbia lathyris	EUPHORBIACEAE	CAPER SPURGE	naturalized	
Euphorbia lurida	EUPHORBIACEAE		native	
Euphorbia maculata	EUPHORBIACEAE		naturalized	
Euphorbia melanadenia	EUPHORBIACEAE		native	
Euphorbia micromera	EUPHORBIACEAE		native	
Euphorbia misera	EUPHORBIACEAE	CLIFF SPURGE	native	
Euphorbia nutans	EUPHORBIACEAE		naturalized	
Euphorbia oblongata	EUPHORBIACEAE		naturalized	
Euphorbia ocellata	EUPHORBIACEAE		native	
Euphorbia ocellata subsp. arenicola	EUPHORBIACEAE		native	
Euphorbia ocellata subsp. ocellata	EUPHORBIACEAE		native	
Euphorbia ocellata subsp. rattanii	EUPHORBIACEAE		native	
Euphorbia parishii	EUPHORBIACEAE		native	
Euphorbia parryi	EUPHORBIACEAE		native	
Euphorbia pediculifera	EUPHORBIACEAE		native	
Euphorbia peplus	EUPHORBIACEAE	PETTY SPURGE	naturalized	
Euphorbia platysperma	EUPHORBIACEAE		native	
Euphorbia polycarpa	EUPHORBIACEAE		native	
Euphorbia prostrata	EUPHORBIACEAE		naturalized	
Euphorbia revoluta	EUPHORBIACEAE		native	
Euphorbia schizoloba	EUPHORBIACEAE	MOJAVE SPURGE	native	
Euphorbia serpens	EUPHORBIACEAE		naturalized	
Euphorbia serpyllifolia	EUPHORBIACEAE		native	
Euphorbia serpyllifolia subsp. hirtula	EUPHORBIACEAE		native	
Euphorbia serpyllifolia subsp. serpyllifolia	EUPHORBIACEAE		native	
Euphorbia setiloba	EUPHORBIACEAE		native	
Euphorbia spathulata	EUPHORBIACEAE		native	
Euphorbia terracina	EUPHORBIACEAE	GERALDTON CARNATION WEED	naturalized	
Euphorbia vallis-mortae	EUPHORBIACEAE		native	
Euphorbia virgata	EUPHORBIACEAE	LEAFY SPURGE	naturalized	
Euphrosyne acerosa	ASTERACEAE	COPPERWORT	native	
Euphrosyne nevadensis	ASTERACEAE	NEVADA WORMWOOD	native	
Eurybia integrifolia	ASTERACEAE		native	
Eurybia merita	ASTERACEAE	SUBALPINE ASTER	native	
Eurybia radulina	ASTERACEAE		native	
Eustoma exaltatum	GENTIANACEAE		native	
Eustoma exaltatum subsp. exaltatum	GENTIANACEAE		native	
Euthamia occidentalis	ASTERACEAE	WESTERN GOLDENROD	native	
Extriplex californica	CHENOPODIACEAE		native	
Extriplex joaquinana	CHENOPODIACEAE		native	
Fagonia laevis	ZYGOPHYLLACEAE		native	
Fagonia pachyacantha	ZYGOPHYLLACEAE		native	
Fallopia baldschuanica	POLYGONACEAE	BUKHARA FLEECEFLOWER	naturalized	
Fallopia convolvulus	POLYGONACEAE	BLACK BINDWEED	naturalized	
Fallopia japonica	POLYGONACEAE	JAPANESE KNOTWEED	naturalized	
Fallopia sachalinensis	POLYGONACEAE	GIANT KNOTWEED	naturalized	
Fallugia paradoxa	ROSACEAE		native	
Fendlerella utahensis	HYDRANGEACEAE	YERBA DESIERTO	native	
Ferocactus cylindraceus	CACTACEAE	CALIFORNIA BARREL CACTUS	native	
Ferocactus viridescens	CACTACEAE	SAN DIEGO BARREL CACTUS	native	
Festuca arundinacea	POACEAE	TALL FESCUE	naturalized	
Festuca brachyphylla	POACEAE		native	
Festuca brachyphylla subsp. breviculmis	POACEAE	ALPINE FESCUE	native	
Festuca bromoides	POACEAE	BROME FESCUE	naturalized	
Festuca californica	POACEAE	CALIFORNIA FESCUE	native	
Festuca elmeri	POACEAE		native	
Festuca idahoensis	POACEAE	BLUE BUNCHGRASS	native	
Festuca kingii	POACEAE		native	
Festuca microstachys	POACEAE		native	
Festuca minutiflora	POACEAE	SMALL-FLOWERED FESCUE	native	
Festuca myuros	POACEAE	RATTAIL SIXWEEKS GRASS	naturalized	
Festuca occidentalis	POACEAE	WESTERN FESCUE	native	
Festuca octoflora	POACEAE	SIXWEEKS GRASS	native	
Festuca perennis	POACEAE	RYE GRASS	naturalized	
Festuca pratensis	POACEAE	MEADOW FESCUE	naturalized	
Festuca rubra	POACEAE	RED FESCUE	native	
Festuca saximontana	POACEAE	MOUNTAIN FESCUE	native	
Festuca subulata	POACEAE	BEARDED FESCUE	native	
Festuca subuliflora	POACEAE	CRINKLE-AWN FESCUE	native	
Festuca temulenta	POACEAE	TARES	naturalized	
Festuca trachyphylla	POACEAE	SHEEP FESCUE	naturalized	
Festuca viridula	POACEAE	GREEN FESCUE	native	
Ficus carica	MORACEAE	EDIBLE FIG	naturalized	
Filago pyramidata	ASTERACEAE		naturalized	
Filago pyramidata var. pyramidata	ASTERACEAE	BROADLEAF COTTONROSE	naturalized	
Fimbristylis autumnalis	CYPERACEAE		naturalized	
Fimbristylis thermalis	CYPERACEAE	HOT SPRINGS FIMBRISTYLIS	native	
Fimbristylis vahlii	CYPERACEAE		native	
Flaveria trinervia	ASTERACEAE		naturalized	
Floerkea proserpinacoides	LIMNANTHACEAE		native	
Foeniculum vulgare	APIACEAE	FENNEL	naturalized	
Forestiera pubescens	OLEACEAE	DESERT OLIVE	native	
Fouquieria splendens	FOUQUIERIACEAE		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	CALIFORNIA COFFEE BERRY	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	CASCARA	native	
Frangula purshiana subsp. annonifolia	RHAMNACEAE		native	
Frangula purshiana subsp. purshiana	RHAMNACEAE		native	
Frangula purshiana subsp. ultramafica	RHAMNACEAE	CARIBOU COFFEEBERRY	native	
Frangula rubra	RHAMNACEAE	SIERRA COFFEE BERRY	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	
Frasera albicaulis	GENTIANACEAE		native	
Frasera albicaulis var. modocensis	GENTIANACEAE		native	
Frasera albicaulis var. nitida	GENTIANACEAE		native	
Frasera albomarginata	GENTIANACEAE		native	
Frasera albomarginata var. albomarginata	GENTIANACEAE	DESERT GREEN-GENTIAN	native	
Frasera albomarginata var. induta	GENTIANACEAE	CLARK MOUNTAIN GREEN-GENTIAN	native	
Frasera neglecta	GENTIANACEAE	PINE GREEN-GENTIAN	native	
Frasera parryi	GENTIANACEAE		native	
Frasera puberulenta	GENTIANACEAE		native	
Frasera speciosa	GENTIANACEAE	MONUMENT PLANT	native	
Frasera tubulosa	GENTIANACEAE		native	
Frasera umpquaensis	GENTIANACEAE	UMPQUA GREEN-GENTIAN	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	CHAPARRAL ASH	native	
Fraxinus velutina	OLEACEAE	VELVET ASH	native	
Fremontodendron californicum	MALVACEAE		native	
Fremontodendron decumbens	MALVACEAE	PINE HILL FLANNELBUSH	native	
Fremontodendron mexicanum	MALVACEAE	MEXICAN FLANNELBUSH	native	
Fritillaria affinis	LILIACEAE	CHECKER LILY	native	
Fritillaria agrestis	LILIACEAE	STINKBELLS	native	
Fritillaria atropurpurea	LILIACEAE		native	
Fritillaria biflora	LILIACEAE	MISSION BELLS	native	
Fritillaria biflora var. biflora	LILIACEAE		native	
Fritillaria biflora var. ineziana	LILIACEAE	HILLSBOROUGH CHOCOLATE LILY	native	
Fritillaria brandegeei	LILIACEAE	GREENHORN FRITILLARY	native	
Fritillaria eastwoodiae	LILIACEAE	BUTTE COUNTY FRITILLARY	native	
Fritillaria falcata	LILIACEAE	TALUS FRITILLARY	native	
Fritillaria gentneri	LILIACEAE	GENTNER'S FRITILLARY	native	
Fritillaria glauca	LILIACEAE	SISKIYOU FRITILLARIA	native	
Fritillaria liliacea	LILIACEAE	FRAGRANT FRITILLARY	native	
Fritillaria micrantha	LILIACEAE	BROWN BELLS	native	
Fritillaria ojaiensis	LILIACEAE	OJAI FRITILLARY	native	
Fritillaria pinetorum	LILIACEAE	PINE 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 magellanica	ONAGRACEAE		naturalized	
Fumaria capreolata	PAPAVERACEAE	WHITE RAMPING FUMITORY	naturalized	
Fumaria officinalis	PAPAVERACEAE	FUMITORY	naturalized	
Fumaria parviflora	PAPAVERACEAE		naturalized	
Funastrum crispum	APOCYNACEAE	WAVYLEAF TWINEVINE	native	
Funastrum cynanchoides	APOCYNACEAE		native	
Funastrum cynanchoides var. hartwegii	APOCYNACEAE	CLIMBING MILKWEED	native	
Funastrum hirtellum	APOCYNACEAE	TRAILING TOWNULA	native	
Funastrum utahense	APOCYNACEAE	UTAH VINE MILKWEED	native	
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 subsp. ambiguum	RUBIACEAE		native	
Galium ambiguum subsp. siskiyouense	RUBIACEAE		native	
Galium andrewsii	RUBIACEAE	PHLOX-LEAVED BEDSTRAW	native	
Galium andrewsii subsp. andrewsii	RUBIACEAE		native	
Galium andrewsii subsp. gatense	RUBIACEAE	PHLOX-LEAF SERPENTINE BEDSTRAW	native	
Galium andrewsii subsp. intermedium	RUBIACEAE		native	
Galium angustifolium	RUBIACEAE	NARROWLY LEAVED BEDSTRAW	native	
Galium angustifolium subsp. angustifolium	RUBIACEAE		native	
Galium angustifolium subsp. borregoense	RUBIACEAE	BORREGO BEDSTRAW	native	
Galium angustifolium subsp. foliosum	RUBIACEAE		native	
Galium angustifolium subsp. gabrielense	RUBIACEAE	SAN ANTONIO CANYON BEDSTRAW	native	
Galium angustifolium subsp. gracillimum	RUBIACEAE	SLENDER BEDSTRAW	native	
Galium angustifolium subsp. jacinticum	RUBIACEAE	SAN JACINTO MOUNTAINS BEDSTRAW	native	
Galium angustifolium subsp. nudicaule	RUBIACEAE		native	
Galium angustifolium subsp. onycense	RUBIACEAE	ONYX PEAK BEDSTRAW	native	
Galium aparine	RUBIACEAE	GOOSE GRASS	native	
Galium argense	RUBIACEAE		native	
Galium bifolium	RUBIACEAE	LOW MOUNTAIN BEDSTRAW	native	
Galium bolanderi	RUBIACEAE	BOLANDER'S BEDSTRAW	native	
Galium boreale	RUBIACEAE	NORTHERN BEDSTRAW	native	
Galium buxifolium	RUBIACEAE	BOX BEDSTRAW	native	
Galium californicum	RUBIACEAE	CALIFORNIA BEDSTRAW	native	
Galium californicum subsp. californicum	RUBIACEAE		native	
Galium californicum subsp. flaccidum	RUBIACEAE		native	
Galium californicum subsp. luciense	RUBIACEAE	CONE PEAK BEDSTRAW	native	
Galium californicum subsp. maritimum	RUBIACEAE		native	
Galium californicum subsp. miguelense	RUBIACEAE	SAN MIGUEL ISLAND BEDSTRAW	native	
Galium californicum subsp. primum	RUBIACEAE	ALVIN MEADOW BEDSTRAW	native	
Galium californicum subsp. sierrae	RUBIACEAE	EL DORADO BEDSTRAW	native	
Galium catalinense	RUBIACEAE		native	
Galium catalinense subsp. acrispum	RUBIACEAE	SAN CLEMENTE ISLAND BEDSTRAW	native	
Galium catalinense subsp. catalinense	RUBIACEAE	SANTA CATALINA ISLAND 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		native	
Galium glabrescens subsp. glabrescens	RUBIACEAE		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		native	
Galium grayanum var. nanum	RUBIACEAE		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		native	
Galium hilendiae subsp. kingstonense	RUBIACEAE	KINGSTON MOUNTAINS BEDSTRAW	native	
Galium hypotrichium	RUBIACEAE	ALPINE BEDSTRAW	native	
Galium hypotrichium subsp. hypotrichium	RUBIACEAE		native	
Galium hypotrichium subsp. inyoense	RUBIACEAE		native	
Galium hypotrichium subsp. subalpinum	RUBIACEAE		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		native	
Galium matthewsii	RUBIACEAE	MATTHEWS' BEDSTRAW	native	
Galium mexicanum	RUBIACEAE		native	
Galium mexicanum subsp. asperulum	RUBIACEAE		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		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		native	
Galium porrigens var. tenue	RUBIACEAE		native	
Galium proliferum	RUBIACEAE	DESERT BEDSTRAW	native	
Galium serpenticum	RUBIACEAE		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		native	
Galium sparsiflorum subsp. sparsiflorum	RUBIACEAE		native	
Galium stellatum	RUBIACEAE		native	
Galium tricornutum	RUBIACEAE	ROUGH CORN BEDSTRAW	native	
Galium trifidum	RUBIACEAE		native	
Galium trifidum subsp. columbianum	RUBIACEAE		native	
Galium trifidum subsp. subbiflorum	RUBIACEAE		native	
Galium triflorum	RUBIACEAE	SWEET-SCENTED BEDSTRAW	native	
Galium wrightii	RUBIACEAE	WRIGHT'S BEDSTRAW	native	
Gambelia speciosa	PLANTAGINACEAE	SHOWY GREENBRIGHT	native	
Gamochaeta argyrinea	ASTERACEAE		naturalized	
Gamochaeta calviceps	ASTERACEAE		naturalized	
Gamochaeta coarctata	ASTERACEAE		naturalized	
Gamochaeta pensylvanica	ASTERACEAE		naturalized	
Gamochaeta stagnalis	ASTERACEAE		naturalized	
Gamochaeta ustulata	ASTERACEAE		native	
Garrya buxifolia	GARRYACEAE		native	
Garrya congdonii	GARRYACEAE		native	
Garrya elliptica	GARRYACEAE		native	
Garrya flavescens	GARRYACEAE		native	
Garrya fremontii	GARRYACEAE		native	
Garrya veatchii	GARRYACEAE		native	
Gastridium phleoides	POACEAE	NIT GRASS	naturalized	
Gaultheria humifusa	ERICACEAE	ALPINE WINTERGREEN	native	
Gaultheria ovatifolia	ERICACEAE	SLENDER WINTERGREEN	native	
Gaultheria shallon	ERICACEAE	SALAL	native	
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		naturalized	
Genista linifolia	FABACEAE		naturalized	
Genista monosperma	FABACEAE	BRIDAL VEIL BROOM	naturalized	
Genista monspessulana	FABACEAE	FRENCH BROOM	naturalized	
Gentiana affinis	GENTIANACEAE		native	
Gentiana affinis var. ovata	GENTIANACEAE	OREGON GENTIAN	native	
Gentiana calycosa	GENTIANACEAE	EXPLORERS' GENTIAN	native	
Gentiana fremontii	GENTIANACEAE	FREMONT'S GENTIAN	native	
Gentiana newberryi	GENTIANACEAE	ALPINE GENTIAN	native	
Gentiana newberryi var. newberryi	GENTIANACEAE		native	
Gentiana newberryi var. tiogana	GENTIANACEAE		native	
Gentiana plurisetosa	GENTIANACEAE	KLAMATH GENTIAN	native	
Gentiana prostrata	GENTIANACEAE	PYGMY GENTIAN	native	
Gentiana sceptrum	GENTIANACEAE	KING'S SCEPTER GENTIAN	native	
Gentiana setigera	GENTIANACEAE	MENDOCINO GENTIAN	native	
Gentianella amarella	GENTIANACEAE		native	
Gentianella amarella subsp. acuta	GENTIANACEAE	NORTHERN GENTIAN	native	
Gentianopsis holopetala	GENTIANACEAE	SIERRA GENTIAN	native	
Gentianopsis simplex	GENTIANACEAE	HIKERS' GENTIAN	native	
Geraea canescens	ASTERACEAE	DESERT-SUNFLOWER	native	
Geraea viscida	ASTERACEAE	STICKY GERAEA	native	
Geranium aequale	GERANIACEAE		naturalized	
Geranium bicknellii	GERANIACEAE		native	
Geranium californicum	GERANIACEAE		native	
Geranium carolinianum	GERANIACEAE		native	
Geranium columbinum	GERANIACEAE		naturalized	
Geranium core-core	GERANIACEAE		naturalized	
Geranium dissectum	GERANIACEAE		naturalized	
Geranium lucidum	GERANIACEAE		naturalized	
Geranium molle	GERANIACEAE		naturalized	
Geranium oreganum	GERANIACEAE		native	
Geranium potentilloides	GERANIACEAE		naturalized	
Geranium purpureum	GERANIACEAE		naturalized	
Geranium pusillum	GERANIACEAE		naturalized	
Geranium richardsonii	GERANIACEAE		native	
Geranium robertianum	GERANIACEAE		naturalized	
Geranium rotundifolium	GERANIACEAE		naturalized	
Geranium solanderi	GERANIACEAE		naturalized	
Geranium viscosissimum	GERANIACEAE		native	
Geum aleppicum	ROSACEAE	YELLOW AVENS	native	
Geum macrophyllum	ROSACEAE	LARGE-LEAVED AVENS	native	
Geum macrophyllum var. macrophyllum	ROSACEAE		native	
Geum macrophyllum var. perincisum	ROSACEAE		native	
Geum triflorum	ROSACEAE		native	
Geum triflorum var. ciliatum	ROSACEAE	PRAIRIE-SMOKE	native	
Gilia achilleifolia	POLEMONIACEAE	CALIFORNIA GILIA	native	
Gilia achilleifolia subsp. achilleifolia	POLEMONIACEAE		native	
Gilia achilleifolia subsp. multicaulis	POLEMONIACEAE		native	
Gilia aliquanta	POLEMONIACEAE	WESTERN GILIA	native	
Gilia aliquanta subsp. aliquanta	POLEMONIACEAE		native	
Gilia aliquanta subsp. breviloba	POLEMONIACEAE		native	
Gilia angelensis	POLEMONIACEAE	CHAPARRAL GILIA	native	
Gilia austro-occidentalis	POLEMONIACEAE	SOUTHWESTERN GILIA	native	
Gilia brecciarum	POLEMONIACEAE	NEVADA GILIA	native	
Gilia brecciarum subsp. brecciarum	POLEMONIACEAE		native	
Gilia brecciarum subsp. neglecta	POLEMONIACEAE		native	
Gilia cana	POLEMONIACEAE	SHOWY GILIA	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	BLUEHEAD GILIA	native	
Gilia capitata subsp. abrotanifolia	POLEMONIACEAE		native	
Gilia capitata subsp. capitata	POLEMONIACEAE		native	
Gilia capitata subsp. chamissonis	POLEMONIACEAE	BLUE COAST GILIA	native	
Gilia capitata subsp. mediomontana	POLEMONIACEAE		native	
Gilia capitata subsp. pacifica	POLEMONIACEAE	PACIFIC GILIA	native	
Gilia capitata subsp. pedemontana	POLEMONIACEAE		native	
Gilia capitata subsp. staminea	POLEMONIACEAE		native	
Gilia capitata subsp. tomentosa	POLEMONIACEAE	WOOLLY-HEADED GILIA	native	
Gilia clivorum	POLEMONIACEAE	PURPLESPOT GILIA	native	
Gilia clokeyi	POLEMONIACEAE	CLOKEY'S GILIA	native	
Gilia diegensis	POLEMONIACEAE	COASTAL GILIA	native	
Gilia inconspicua	POLEMONIACEAE	SHY GILIA	native	
Gilia interior	POLEMONIACEAE	INLAND GILIA	native	
Gilia jacens	POLEMONIACEAE		native	
Gilia latiflora	POLEMONIACEAE	BROAD-FLOWERED GILIA	native	
Gilia latiflora subsp. cuyamensis	POLEMONIACEAE	CUYAMA GILIA	native	
Gilia latiflora subsp. davyi	POLEMONIACEAE	DAVY'S BROAD-FLOWERED GILIA	native	
Gilia latiflora subsp. elongata	POLEMONIACEAE		native	
Gilia latiflora subsp. latiflora	POLEMONIACEAE	BROAD-LEAVED GILIA	native	
Gilia leptantha	POLEMONIACEAE	FINEFLOWERED GILIA	native	
Gilia leptantha subsp. leptantha	POLEMONIACEAE	SAN BERNARDINO GILIA	native	
Gilia leptantha subsp. pinetorum	POLEMONIACEAE	PINE GILIA	native	
Gilia leptantha subsp. purpusii	POLEMONIACEAE	PURPUS' FINEFLOWERED GILIA	native	
Gilia leptantha subsp. transversa	POLEMONIACEAE		native	
Gilia malior	POLEMONIACEAE	GREAT BASIN GILIA	native	
Gilia millefoliata	POLEMONIACEAE	DARK-EYED GILIA	native	
Gilia minor	POLEMONIACEAE	LITTLE GILIA	native	
Gilia modocensis	POLEMONIACEAE	MODOC GILIA	native	
Gilia nevinii	POLEMONIACEAE	NEVIN'S GILIA	native	
Gilia ochroleuca	POLEMONIACEAE	VOLCANIC GILIA	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	YELLOW-EYED GILIA	native	
Gilia salticola	POLEMONIACEAE	SALT GILIA	native	
Gilia scopulorum	POLEMONIACEAE	ROCK GILIA	native	
Gilia sinuata	POLEMONIACEAE	ROSY GILIA	native	
Gilia stellata	POLEMONIACEAE	STAR GILIA	native	
Gilia tenuiflora	POLEMONIACEAE		native	
Gilia tenuiflora subsp. amplifaucalis	POLEMONIACEAE	TRUMPET-THROATED GILIA	native	
Gilia tenuiflora subsp. arenaria	POLEMONIACEAE	MONTEREY GILIA	native	
Gilia tenuiflora subsp. hoffmannii	POLEMONIACEAE	HOFFMANN'S SLENDER-FLOWERED GILIA	native	
Gilia tenuiflora subsp. tenuiflora	POLEMONIACEAE	GREATER YELLOWTHROAT GILIA	native	
Gilia transmontana	POLEMONIACEAE	TRANSMONTANE GILIA	native	
Gilia tricolor	POLEMONIACEAE	BIRD'S-EYE GILIA	native	
Gilia tricolor subsp. diffusa	POLEMONIACEAE		native	
Gilia tricolor subsp. tricolor	POLEMONIACEAE		native	
Gilia yorkii	POLEMONIACEAE	MONARCH GILIA	native	
Gilmania luteola	POLYGONACEAE	GOLDEN-CARPET GILMANIA	native	
Githopsis diffusa	CAMPANULACEAE		native	
Githopsis diffusa subsp. candida	CAMPANULACEAE		native	
Githopsis diffusa subsp. diffusa	CAMPANULACEAE		native	
Githopsis diffusa subsp. filicaulis	CAMPANULACEAE	MISSION CANYON BLUECUP	native	
Githopsis diffusa subsp. robusta	CAMPANULACEAE		native	
Githopsis pulchella	CAMPANULACEAE		native	
Githopsis pulchella subsp. campestris	CAMPANULACEAE		native	
Githopsis pulchella subsp. pulchella	CAMPANULACEAE		native	
Githopsis pulchella subsp. serpentinicola	CAMPANULACEAE	SERPENTINE BLUECUP	native	
Githopsis pulchella var. glabra	CAMPANULACEAE		native	
Githopsis pulchella var. pulchella	CAMPANULACEAE		native	
Githopsis specularioides	CAMPANULACEAE		native	
Githopsis tenella	CAMPANULACEAE	DELICATE BLUECUP	native	
Glaux maritima	MYRSINACEAE		native	
Glebionis coronaria	ASTERACEAE	CROWN DAISY	naturalized	
Glebionis segetum	ASTERACEAE	CORN CHRYSANTHEMUM	naturalized	
Glechoma hederacea	LAMIACEAE		naturalized	
Gleditsia triacanthos	FABACEAE	HONEY LOCUST	naturalized	
Glehnia littoralis	APIACEAE		native	
Glehnia littoralis subsp. leiocarpa	APIACEAE	AMERICAN GLEHNIA	native	
Glinus lotoides	MOLLUGINACEAE		naturalized	
Glinus radiatus	MOLLUGINACEAE	SHINING DAMASCISA	naturalized	
Glossopetalon pungens	CROSSOSOMATACEAE	PUNGENT GLOSSOPETALON	native	
Glossopetalon spinescens	CROSSOSOMATACEAE		native	
Glossopetalon spinescens var. aridum	CROSSOSOMATACEAE	NEVADA GREASEWOOD	native	
Glyceria	POACEAE	WESTERN MANNA GRASS	naturalized	
Glyceria borealis	POACEAE	BOREAL MANNA GRASS	native	
Glyceria declinata	POACEAE	LOW MANNA GRASS	naturalized	
Glyceria elata	POACEAE	FOWL MANNA GRASS	native	
Glyceria fluitans	POACEAE	WATER MANNA GRASS	naturalized	
Glyceria grandis	POACEAE	AMERICAN MANNA GRASS	native	
Glyceria leptostachya	POACEAE	NARROW MANNA GRASS	native	
Glyceria striata	POACEAE	RIDGED MANNA GRASS	native	
Glycyrrhiza glabra	FABACEAE	LICORICE	naturalized	
Glycyrrhiza lepidota	FABACEAE	WILD LICORICE	native	
Glyptopleura marginata	ASTERACEAE		native	
Glyptopleura setulosa	ASTERACEAE		native	
Gnaphalium palustre	ASTERACEAE		native	
Goodmania luteola	POLYGONACEAE	GOLDEN GOODMANIA	native	
Goodyera oblongifolia	ORCHIDACEAE	RATTLESNAKE-PLANTAIN	native	
Gratiola ebracteata	PLANTAGINACEAE	BRACTLESS HEDGE-HYSSOP	native	
Gratiola heterosepala	PLANTAGINACEAE	BOGGS LAKE HEDGE-HYSSOP	native	
Gratiola neglecta	PLANTAGINACEAE	CLAMMY HEDGE-HYSSOP	native	
Grayia spinosa	CHENOPODIACEAE		native	
Grevillea robusta	PROTEACEAE		naturalized	
Grindelia camporum	ASTERACEAE		native	
Grindelia fraxinipratensis	ASTERACEAE	ASH MEADOWS GUMPLANT	native	
Grindelia hallii	ASTERACEAE	SAN DIEGO GUMPLANT	native	
Grindelia hirsutula	ASTERACEAE		native	
Grindelia nana	ASTERACEAE		native	
Grindelia squarrosa	ASTERACEAE		naturalized	
Grindelia squarrosa var. serrulata	ASTERACEAE		naturalized	
Grindelia stricta	ASTERACEAE		native	
Grindelia stricta var. angustifolia	ASTERACEAE	MARSH GUMPLANT	native	
Grindelia stricta var. platyphylla	ASTERACEAE		native	
Grindelia stricta var. stricta	ASTERACEAE		native	
Grusonia parishii	CACTACEAE	PARISH'S CLUB-CHOLLA	native	
Grusonia pulchella	CACTACEAE	BEAUTIFUL CLUB-CHOLLA	native	
Guilleminea densa	AMARANTHACEAE		naturalized	
Gunnera tinctoria	GUNNERACEAE	CHILEAN-RHUBARB	naturalized	
Gutierrezia californica	ASTERACEAE	CALIFORNIA MATCHWEED	native	
Gutierrezia microcephala	ASTERACEAE	STICKY SNAKEWEED	native	
Gutierrezia sarothrae	ASTERACEAE	MATCHWEED	native	
Gymnosteris parvula	POLEMONIACEAE		native	
Gypsophila elegans	CARYOPHYLLACEAE	SHOWY BABY'S-BREATH	naturalized	
Gypsophila paniculata	CARYOPHYLLACEAE	BABY'S-BREATH	naturalized	
Hackelia amethystina	BORAGINACEAE	AMETHYST STICKSEED	native	
Hackelia bella	BORAGINACEAE	BEAUTIFUL STICKSEED	native	
Hackelia brevicula	BORAGINACEAE	POISON CANYON STICKSEED	native	
Hackelia californica	BORAGINACEAE	CALIFORNIA STICKSEED	native	
Hackelia cusickii	BORAGINACEAE	CUSICK'S STICKSEED	native	
Hackelia floribunda	BORAGINACEAE	MANY-FLOWERED STICKSEED	native	
Hackelia micrantha	BORAGINACEAE	MEADOW STICKSEED	native	
Hackelia mundula	BORAGINACEAE	PINK-FLOWERED STICKSEED	native	
Hackelia nervosa	BORAGINACEAE	SIERRAN STICKSEED	native	
Hackelia setosa	BORAGINACEAE	SISKIYOU STICKSEED	native	
Hackelia sharsmithii	BORAGINACEAE	SHARSMITH'S STICKSEED	native	
Hackelia velutina	BORAGINACEAE	VELVETY STICKSEED	native	
Hainardia cylindrica	POACEAE		naturalized	
Halimolobos jaegeri	BRASSICACEAE		native	
Halogeton glomeratus	CHENOPODIACEAE	SALTLOVER	naturalized	
Harmonia doris-nilesiae	ASTERACEAE	NILES' HARMONIA	native	
Harmonia guggolziorum	ASTERACEAE	GUGGOLZ'S HARMONIA	native	
Harmonia hallii	ASTERACEAE	HALL'S HARMONIA	native	
Harmonia nutans	ASTERACEAE	NODDING HARMONIA	native	
Harmonia stebbinsii	ASTERACEAE	STEBBINS' HARMONIA	native	
Harpagonella palmeri	BORAGINACEAE	PALMER'S GRAPPLINGHOOK	native	
Hastingsia alba	AGAVACEAE		native	
Hastingsia serpentinicola	AGAVACEAE		native	
Hazardia brickellioides	ASTERACEAE	BRICKELL GOLDENBUSH	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	WHITNEY'S GOLDENBUSH	native	
Hazardia whitneyi var. discoidea	ASTERACEAE		native	
Hazardia whitneyi var. whitneyi	ASTERACEAE		native	
Hecastocleis shockleyi	ASTERACEAE		native	
Hedeoma drummondii	LAMIACEAE	DRUMMOND'S FALSE PENNYROYAL	native	
Hedeoma nana	LAMIACEAE		native	
Hedeoma nana subsp. californica	LAMIACEAE	CALIFORNIA MOCK PENNYROYAL	native	
Hedera canariensis	ARALIACEAE	CANARY ISLANDS IVY	naturalized	
Hedera helix	ARALIACEAE	ENGLISH IVY	naturalized	
Hedypnois cretica	ASTERACEAE	CRETE WEED	naturalized	
Helenium amarum	ASTERACEAE		naturalized	
Helenium amarum var. amarum	ASTERACEAE		naturalized	
Helenium autumnale	ASTERACEAE		native	
Helenium bigelovii	ASTERACEAE		native	
Helenium bolanderi	ASTERACEAE		native	
Helenium puberulum	ASTERACEAE		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	
Helianthus annuus	ASTERACEAE		native	
Helianthus bolanderi	ASTERACEAE	BOLANDER'S SUNFLOWER	native	
Helianthus californicus	ASTERACEAE	CALIFORNIA SUNFLOWER	native	
Helianthus ciliaris	ASTERACEAE	BLUEWEED	naturalized	
Helianthus cusickii	ASTERACEAE	CUSICK'S SUNFLOWER	native	
Helianthus exilis	ASTERACEAE	SERPENTINE SUNFLOWER	native	
Helianthus gracilentus	ASTERACEAE	SLENDER SUNFLOWER	native	
Helianthus inexpectatus	ASTERACEAE	NEWHALL SUNFLOWER	native	
Helianthus niveus	ASTERACEAE		native	
Helianthus niveus subsp. tephrodes	ASTERACEAE	ALGODONES DUNES SUNFLOWER	native	
Helianthus nuttallii	ASTERACEAE		native	
Helianthus nuttallii subsp. nuttallii	ASTERACEAE	NUTTALL'S SUNFLOWER	native	
Helianthus petiolaris	ASTERACEAE	PRAIRIE SUNFLOWER	naturalized	
Helianthus petiolaris subsp. canescens	ASTERACEAE		native	
Helianthus petiolaris subsp. petiolaris	ASTERACEAE		naturalized	
Helichrysum petiolare	ASTERACEAE	LICORICE PLANT	naturalized	
Heliomeris multiflora	ASTERACEAE		native	
Heliomeris multiflora var. nevadensis	ASTERACEAE	NEVADA GOLDENEYE	native	
Heliotropium amplexicaule	BORAGINACEAE	FRAGRANT HELIOTROPE	naturalized	
Heliotropium convolvulaceum	BORAGINACEAE		native	
Heliotropium convolvulaceum var. californicum	BORAGINACEAE	MORNING-GLORY HELIOTROPE	native	
Heliotropium curassavicum	BORAGINACEAE		native	
Heliotropium curassavicum var. oculatum	BORAGINACEAE	ALKALI HELIOTROPE	native	
Heliotropium europaeum	BORAGINACEAE	EUROPEAN HELIOTROPE	naturalized	
Helipterum roseum	ASTERACEAE		naturalized	acceptance uncertain
Helminthotheca echioides	ASTERACEAE	BRISTLY OX-TONGUE	naturalized	
Hemieva ranunculifolia	SAXIFRAGACEAE		native	
Hemitomes congestum	ERICACEAE		native	
Hemizonella minima	ASTERACEAE		native	
Hemizonia congesta	ASTERACEAE		native	
Hemizonia congesta subsp. calyculata	ASTERACEAE	MENDOCINO TARPLANT	native	
Hemizonia congesta subsp. clevelandii	ASTERACEAE		native	
Hemizonia congesta subsp. congesta	ASTERACEAE	PALE-YELLOW HAYFIELD TARPLANT	native	
Hemizonia congesta subsp. lutescens	ASTERACEAE		native	
Hemizonia congesta subsp. luzulifolia	ASTERACEAE		native	
Hemizonia congesta subsp. tracyi	ASTERACEAE	TRACY'S TARPLANT	native	
Heracleum maximum	APIACEAE	GIANT HOGWEED	native	
Herissantia crispa	MALVACEAE	CURLY HERISSANTIA	native	
Herniaria hirsuta	CARYOPHYLLACEAE		naturalized	
Herniaria hirsuta var. cinerea	CARYOPHYLLACEAE		naturalized	
Herniaria hirsuta var. hirsuta	CARYOPHYLLACEAE		naturalized	
Hesperevax acaulis	ASTERACEAE	DWARF EVAX	native	
Hesperevax acaulis var. acaulis	ASTERACEAE	STEMLESS 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	ERECT EVAX	native	
Hesperevax sparsiflora var. brevifolia	ASTERACEAE	SHORTLEAVED EVAX	native	
Hesperevax sparsiflora var. sparsiflora	ASTERACEAE		native	
Hesperidanthus jaegeri	BRASSICACEAE		native	
Hesperis matronalis	BRASSICACEAE	DAME'S ROCKET	naturalized	
Hesperocallis undulata	AGAVACEAE		native	
Hesperochiron californicus	BORAGINACEAE		native	
Hesperochiron pumilus	BORAGINACEAE		native	
Hesperocnide tenella	URTICACEAE		native	
Hesperocyparis abramsiana	CUPRESSACEAE	SANTA CRUZ CYPRESS	native	
Hesperocyparis abramsiana var. abramsiana	CUPRESSACEAE		native	
Hesperocyparis abramsiana var. butanoensis	CUPRESSACEAE		native	
Hesperocyparis bakeri	CUPRESSACEAE	SISKIYOU CYPRESS	native	
Hesperocyparis forbesii	CUPRESSACEAE	TECATE CYPRESS	native	
Hesperocyparis goveniana	CUPRESSACEAE	GOWEN CYPRESS	native	
Hesperocyparis macnabiana	CUPRESSACEAE	MCNAB CYPRESS	native	
Hesperocyparis macrocarpa	CUPRESSACEAE	MONTEREY CYPRESS	native	
Hesperocyparis nevadensis	CUPRESSACEAE	PIUTE CYPRESS	native	
Hesperocyparis pygmaea	CUPRESSACEAE	PYGMY CYPRESS	native	
Hesperocyparis sargentii	CUPRESSACEAE	SARGENT CYPRESS	native	
Hesperocyparis stephensonii	CUPRESSACEAE	CUYAMACA CYPRESS	native	
Hesperolinon adenophyllum	LINACEAE	GLANDULAR WESTERN FLAX	native	
Hesperolinon bicarpellatum	LINACEAE	TWO-CARPELLATE WESTERN FLAX	native	
Hesperolinon breweri	LINACEAE	BREWER'S WESTERN FLAX	native	
Hesperolinon californicum	LINACEAE		native	
Hesperolinon clevelandii	LINACEAE		native	
Hesperolinon congestum	LINACEAE	MARIN WESTERN FLAX	native	
Hesperolinon didymocarpum	LINACEAE	LAKE COUNTY WESTERN FLAX	native	
Hesperolinon disjunctum	LINACEAE		native	
Hesperolinon drymarioides	LINACEAE	DRYMARIA-LIKE WESTERN FLAX	native	
Hesperolinon micranthum	LINACEAE		native	
Hesperolinon spergulinum	LINACEAE		native	
Hesperolinon tehamense	LINACEAE	TEHAMA COUNTY WESTERN FLAX	native	
Hesperomecon linearis	PAPAVERACEAE		native	
Hesperoyucca whipplei	AGAVACEAE		native	
Heteranthemis viscidihirta	ASTERACEAE		naturalized	
Heteranthera dubia	PONTEDERIACEAE	WATER STAR-GRASS	native	
Heteranthera limosa	PONTEDERIACEAE		naturalized	
Heterocodon rariflorum	CAMPANULACEAE		native	
Heteromeles arbutifolia	ROSACEAE		native	
Heteropogon contortus	POACEAE	TANGLEHEAD	naturalized	
Heterotheca grandiflora	ASTERACEAE	TELEGRAPH WEED	native	
Heterotheca monarchensis	ASTERACEAE	MONARCH GOLDENASTER	native	
Heterotheca oregona	ASTERACEAE	RAYLESS GOLDENASTER	native	
Heterotheca oregona var. compacta	ASTERACEAE		native	
Heterotheca oregona var. oregona	ASTERACEAE		native	
Heterotheca oregona var. rudis	ASTERACEAE		native	
Heterotheca oregona var. scaberrima	ASTERACEAE		native	
Heterotheca sessiliflora	ASTERACEAE	SESSILEFLOWER GOLDENASTER	native	
Heterotheca sessiliflora subsp. bolanderi	ASTERACEAE		native	
Heterotheca sessiliflora subsp. echioides	ASTERACEAE		native	
Heterotheca sessiliflora subsp. fastigiata	ASTERACEAE		native	
Heterotheca sessiliflora subsp. sessiliflora	ASTERACEAE	BEACH GOLDENASTER	native	
Heterotheca shevockii	ASTERACEAE	SHEVOCK'S GOLDENASTER	native	
Heterotheca subaxillaris	ASTERACEAE		native	
Heterotheca subaxillaris subsp. latifolia	ASTERACEAE	CAMPHOR-WEED	native	
Heterotheca villosa	ASTERACEAE	HAIRY GOLDENASTER	native	
Heterotheca villosa var. minor	ASTERACEAE		native	
Heterotheca villosa var. scabra	ASTERACEAE		native	
Heuchera abramsii	SAXIFRAGACEAE	ABRAMS' ALUMROOT	native	
Heuchera brevistaminea	SAXIFRAGACEAE	LAGUNA MOUNTAINS ALUMROOT	native	
Heuchera caespitosa	SAXIFRAGACEAE		native	
Heuchera cylindrica	SAXIFRAGACEAE		native	
Heuchera hirsutissima	SAXIFRAGACEAE	SHAGGY-HAIRED ALUMROOT	native	
Heuchera maxima	SAXIFRAGACEAE	ISLAND ALUMROOT	native	
Heuchera merriamii	SAXIFRAGACEAE		native	
Heuchera micrantha	SAXIFRAGACEAE		native	
Heuchera parishii	SAXIFRAGACEAE	PARISH'S ALUMROOT	native	
Heuchera parvifolia	SAXIFRAGACEAE		native	
Heuchera pilosissima	SAXIFRAGACEAE		native	
Heuchera rubescens	SAXIFRAGACEAE		native	
Hibiscus denudatus	MALVACEAE	PALE FACE	native	
Hibiscus lasiocarpos	MALVACEAE		native	
Hibiscus lasiocarpos var. occidentalis	MALVACEAE	WOOLLY ROSE-MALLOW	native	
Hibiscus trionum	MALVACEAE	FLOWER-OF-AN-HOUR	naturalized	
Hieracium albiflorum	ASTERACEAE	WHITE HAWKWEED	native	
Hieracium argutum	ASTERACEAE	SOUTHERN HAWKWEED	native	
Hieracium bolanderi	ASTERACEAE	BOLANDER'S HAWKWEED	native	
Hieracium greenei	ASTERACEAE	GREENE'S HAWKWEED	native	
Hieracium horridum	ASTERACEAE	PRICKLY HAWKWEED	native	
Hieracium nudicaule	ASTERACEAE	NAKED-STEMMED HAWKWEED	native	
Hieracium parryi	ASTERACEAE	PARRY'S HAWKWEED	native	
Hieracium scouleri	ASTERACEAE	WESTERN HAWKWEED	native	
Hieracium triste	ASTERACEAE	SLENDER HAWKWEED	native	
Hilaria jamesii	POACEAE	GALLETA	native	
Hilaria rigida	POACEAE	BIG GALLETA	native	
Hippuris vulgaris	PLANTAGINACEAE		native	
Hirschfeldia incana	BRASSICACEAE		naturalized	
Hoffmannseggia glauca	FABACEAE	HOG POTATO	native	
Hoffmannseggia microphylla	FABACEAE		native	
Hoita macrostachya	FABACEAE		native	
Hoita orbicularis	FABACEAE		native	
Hoita strobilina	FABACEAE	LOMA PRIETA HOITA	native	
Holcus lanatus	POACEAE	COMMON VELVET GRASS	naturalized	
Holcus mollis	POACEAE	CREEPING VELVET GRASS	naturalized	
Hollisteria lanata	POLYGONACEAE	FALSE SPIKEFLOWER	native	
Holmgrenanthe petrophila	PLANTAGINACEAE	ROCK LADY	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 discolor var. discolor	ROSACEAE		native	
Holodiscus discolor var. glabrescens	ROSACEAE		native	
Holodiscus discolor var. microphyllus	ROSACEAE		native	
Holodiscus dumosus var. cedrorum	ROSACEAE		native	acceptance uncertain
Holosteum umbellatum	CARYOPHYLLACEAE		naturalized	
Holosteum umbellatum subsp. umbellatum	CARYOPHYLLACEAE		naturalized	
Holozonia filipes	ASTERACEAE	WHITECROWN	native	
Hordeum arizonicum	POACEAE	ARIZONA BARLEY	native	
Hordeum brachyantherum	POACEAE		native	
Hordeum brachyantherum subsp. brachyantherum	POACEAE	NORTHERN BARLEY	native	
Hordeum brachyantherum subsp. californicum	POACEAE	CALIFORNIA BARLEY	native	
Hordeum depressum	POACEAE	ALKALI BARLEY	native	
Hordeum intercedens	POACEAE	BOBTAIL BARLEY	native	
Hordeum jubatum	POACEAE		native	
Hordeum jubatum subsp. jubatum	POACEAE	SQUIRRELTAIL BARLEY	native	
Hordeum marinum	POACEAE		naturalized	
Hordeum marinum subsp. gussoneanum	POACEAE	MEDITERRANEAN BARLEY	naturalized	
Hordeum murinum	POACEAE	WALL BARLEY	naturalized	
Hordeum murinum subsp. glaucum	POACEAE	SMOOTH BARLEY	naturalized	
Hordeum murinum subsp. leporinum	POACEAE	HARE BARLEY	naturalized	
Hordeum murinum subsp. murinum	POACEAE		naturalized	
Horkelia bolanderi	ROSACEAE	BOLANDER'S HORKELIA	native	
Horkelia californica	ROSACEAE		native	
Horkelia californica var. californica	ROSACEAE		native	
Horkelia californica var. elata	ROSACEAE		native	
Horkelia californica var. frondosa	ROSACEAE		native	
Horkelia clevelandii	ROSACEAE		native	
Horkelia clevelandii var. clevelandii	ROSACEAE		native	
Horkelia congesta	ROSACEAE		native	
Horkelia congesta var. nemorosa	ROSACEAE	JOSEPHINE HORKELIA	native	
Horkelia cuneata	ROSACEAE		native	
Horkelia cuneata var. cuneata	ROSACEAE		native	
Horkelia cuneata var. puberula	ROSACEAE	MESA HORKELIA	native	
Horkelia cuneata var. sericea	ROSACEAE	KELLOGG'S HORKELIA	native	
Horkelia daucifolia	ROSACEAE		native	
Horkelia daucifolia var. daucifolia	ROSACEAE		native	
Horkelia daucifolia var. indicta	ROSACEAE	JEPSON'S HORKELIA	native	
Horkelia fusca	ROSACEAE		native	
Horkelia fusca var. brownii	ROSACEAE		native	
Horkelia fusca var. parviflora	ROSACEAE		native	
Horkelia fusca var. pseudocapitata	ROSACEAE		native	
Horkelia fusca var. tenella	ROSACEAE		native	
Horkelia hendersonii	ROSACEAE	HENDERSON'S HORKELIA	native	
Horkelia hispidula	ROSACEAE	WHITE MOUNTAINS HORKELIA	native	
Horkelia howellii	ROSACEAE	HOWELL'S HORKELIA	native	
Horkelia marinensis	ROSACEAE	POINT REYES HORKELIA	native	
Horkelia parryi	ROSACEAE	PARRY'S HORKELIA	native	
Horkelia rydbergii	ROSACEAE		native	
Horkelia sericata	ROSACEAE	SILKY HORKELIA	native	
Horkelia tenuiloba	ROSACEAE	THIN-LOBED HORKELIA	native	
Horkelia tridentata	ROSACEAE		native	
Horkelia tridentata var. flavescens	ROSACEAE		native	
Horkelia tridentata var. 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	
Hornungia procumbens	BRASSICACEAE		naturalized	
Horsfordia alata	MALVACEAE	PINK VELVET-MALLOW	native	
Horsfordia newberryi	MALVACEAE	NEWBERRY'S VELVET-MALLOW	native	
Hosackia crassifolia	FABACEAE		native	
Hosackia crassifolia var. crassifolia	FABACEAE		native	
Hosackia crassifolia var. otayensis	FABACEAE	OTAY MOUNTAIN HOSACKIA	native	
Hosackia gracilis	FABACEAE	HARLEQUIN LOTUS	native	
Hosackia incana	FABACEAE		native	
Hosackia oblongifolia	FABACEAE		native	
Hosackia oblongifolia var. cuprea	FABACEAE	COPPER-FLOWERED BIRD'S-FOOT TREFOIL	native	
Hosackia oblongifolia var. oblongifolia	FABACEAE		native	
Hosackia pinnata	FABACEAE		native	
Hosackia rosea	FABACEAE		native	
Hosackia stipularis	FABACEAE		native	
Hosackia stipularis var. ottleyi	FABACEAE		native	
Hosackia stipularis var. stipularis	FABACEAE		native	
Hosackia yollabolliensis	FABACEAE	YOLLA BOLLY MOUNTAINS BIRD'S-FOOT TREFOIL	native	
Howellia aquatilis	CAMPANULACEAE	WATER HOWELLIA	native	
Hulsea algida	ASTERACEAE		native	
Hulsea brevifolia	ASTERACEAE	SHORTLEAVED HULSEA	native	
Hulsea californica	ASTERACEAE	SAN DIEGO SUNFLOWER	native	
Hulsea heterochroma	ASTERACEAE		native	
Hulsea mexicana	ASTERACEAE	MEXICAN HULSEA	native	
Hulsea nana	ASTERACEAE	LITTLE HULSEA	native	
Hulsea vestita	ASTERACEAE		native	
Hulsea vestita subsp. callicarpha	ASTERACEAE	BEAUTIFUL HULSEA	native	
Hulsea vestita subsp. gabrielensis	ASTERACEAE	SAN GABRIEL MOUNTAINS SUNFLOWER	native	
Hulsea vestita subsp. inyoensis	ASTERACEAE	INYO HULSEA	native	
Hulsea vestita subsp. parryi	ASTERACEAE	PARRY'S SUNFLOWER	native	
Hulsea vestita subsp. pygmaea	ASTERACEAE	PYGMY HULSEA	native	
Hulsea vestita subsp. vestita	ASTERACEAE		native	
Humulus americanus	CANNABACEAE		naturalized	acceptance uncertain
Humulus lupulus	CANNABACEAE	EUROPEAN HOP	naturalized	
Hydrilla verticillata	HYDROCHARITACEAE		naturalized	
Hydrocotyle ranunculoides	ARALIACEAE		native	
Hydrocotyle umbellata	ARALIACEAE		native	
Hydrocotyle verticillata	ARALIACEAE		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	HAIRY-PODDED FINE-LEAF HYMENOPAPPUS	native	
Hymenopappus filifolius var. lugens	ASTERACEAE		native	
Hymenopappus filifolius var. megacephalus	ASTERACEAE		native	
Hymenopappus filifolius var. nanus	ASTERACEAE	LITTLE CUTLEAF	native	
Hymenothrix wrightii	ASTERACEAE	WRIGHT'S HYMENOTHRIX	native	
Hymenoxys cooperi	ASTERACEAE		native	
Hymenoxys hoopesii	ASTERACEAE		native	
Hymenoxys lemmonii	ASTERACEAE	ALKALI HYMENOXYS	native	
Hymenoxys odorata	ASTERACEAE	BITTER HYMENOXYS	native	
Hyparrhenia hirta	POACEAE	THATCHING GRASS	naturalized	
Hypericum anagalloides	HYPERICACEAE	TINKER'S PENNY	native	
Hypericum calycinum	HYPERICACEAE	AARON'S BEARD	naturalized	
Hypericum canariense	HYPERICACEAE		naturalized	
Hypericum concinnum	HYPERICACEAE	GOLD-WIRE	native	
Hypericum mutilum	HYPERICACEAE		naturalized	
Hypericum mutilum subsp. mutilum	HYPERICACEAE		naturalized	
Hypericum perforatum	HYPERICACEAE		naturalized	
Hypericum perforatum subsp. perforatum	HYPERICACEAE	KLAMATHWEED	naturalized	
Hypericum scouleri	HYPERICACEAE		native	
Hypochaeris glabra	ASTERACEAE	SMOOTH CAT'S-EAR	naturalized	
Hypochaeris radicata	ASTERACEAE	ROUGH CAT'S-EAR	naturalized	
Idahoa scapigera	BRASSICACEAE		native	
Ilex aquifolium	AQUIFOLIACEAE	ENGLISH HOLLY	naturalized	
Iliamna bakeri	MALVACEAE	BAKER'S GLOBE MALLOW	native	
Iliamna latibracteata	MALVACEAE	CALIFORNIA GLOBE MALLOW	native	
Iliamna rivularis	MALVACEAE	STREAMBANK WILD HOLLYHOCK	native	
Impatiens balfourii	BALSAMINACEAE	KASHMIR BALSAM	naturalized	
Impatiens glandulifera	BALSAMINACEAE	POLICEMAN'S HELMET	naturalized	
Imperata brevifolia	POACEAE	CALIFORNIA SATINTAIL	native	
Inula helenium	ASTERACEAE		naturalized	acceptance uncertain
Ionactis alpina	ASTERACEAE	CRAG-ASTER	native	
Ipheion uniflorum	ALLIACEAE		naturalized	
Ipomopsis aggregata	POLEMONIACEAE		native	
Ipomopsis aggregata subsp. aggregata	POLEMONIACEAE		native	
Ipomopsis aggregata subsp. bridgesii	POLEMONIACEAE		native	
Ipomopsis arizonica	POLEMONIACEAE		native	
Ipomopsis congesta	POLEMONIACEAE		native	
Ipomopsis congesta subsp. congesta	POLEMONIACEAE		native	
Ipomopsis congesta subsp. montana	POLEMONIACEAE		native	
Ipomopsis polycladon	POLEMONIACEAE		native	
Ipomopsis tenuifolia	POLEMONIACEAE	SLENDER-LEAVED IPOMOPSIS	native	
Ipomopsis tenuituba	POLEMONIACEAE		native	
Iris bracteata	IRIDACEAE	SISKIYOU IRIS	native	
Iris chrysophylla	IRIDACEAE	YELLOW-FLOWERED IRIS	native	
Iris douglasiana	IRIDACEAE		native	
Iris fernaldii	IRIDACEAE		native	
Iris foetidissima	IRIDACEAE	CORAL IRIS	naturalized	
Iris germanica	IRIDACEAE		naturalized	
Iris hartwegii	IRIDACEAE		native	
Iris hartwegii subsp. australis	IRIDACEAE		native	
Iris hartwegii subsp. columbiana	IRIDACEAE	TUOLUMNE IRIS	native	
Iris hartwegii subsp. hartwegii	IRIDACEAE		native	
Iris hartwegii subsp. pinetorum	IRIDACEAE		native	
Iris innominata	IRIDACEAE	DEL NORTE COUNTY IRIS	native	
Iris longipetala	IRIDACEAE	COAST IRIS	native	
Iris macrosiphon	IRIDACEAE		native	
Iris missouriensis	IRIDACEAE	WESTERN BLUE FLAG	native	
Iris munzii	IRIDACEAE	MUNZ'S IRIS	native	
Iris pseudacorus	IRIDACEAE		naturalized	
Iris purdyi	IRIDACEAE		native	
Iris tenax	IRIDACEAE		native	
Iris tenax subsp. klamathensis	IRIDACEAE	ORLEANS IRIS	native	
Iris tenuissima	IRIDACEAE		native	
Iris tenuissima subsp. purdyiformis	IRIDACEAE		native	
Iris tenuissima subsp. tenuissima	IRIDACEAE		native	
Iris thompsonii	IRIDACEAE		native	
Isatis tinctoria	BRASSICACEAE	WOAD	naturalized	
Isocoma acradenia	ASTERACEAE	ALKALI GOLDENBUSH	native	
Isocoma acradenia var. acradenia	ASTERACEAE		native	
Isocoma acradenia var. bracteosa	ASTERACEAE		native	
Isocoma acradenia var. eremophila	ASTERACEAE		native	
Isocoma arguta	ASTERACEAE	CARQUINEZ GOLDENBUSH	native	
Isocoma menziesii	ASTERACEAE	COASTAL GOLDENBUSH	native	
Isocoma menziesii var. decumbens	ASTERACEAE	DECUMBENT GOLDENBUSH	native	
Isocoma menziesii var. diabolica	ASTERACEAE	SATAN'S GOLDENBUSH	native	
Isocoma menziesii var. menziesii	ASTERACEAE		native	
Isocoma menziesii var. sedoides	ASTERACEAE		native	
Isocoma menziesii var. vernonioides	ASTERACEAE		native	
Isoetes bolanderi	ISOETACEAE		native	
Isoetes echinospora	ISOETACEAE		native	
Isoetes howellii	ISOETACEAE		native	
Isoetes nuttallii	ISOETACEAE		native	
Isoetes occidentalis	ISOETACEAE		native	
Isoetes orcuttii	ISOETACEAE		native	
Isolepis carinata	CYPERACEAE		native	
Isolepis cernua	CYPERACEAE		native	
Isolepis levynsiana	CYPERACEAE		naturalized	
Isolepis setacea	CYPERACEAE		naturalized	
Isomeris arborea	CLEOMACEAE		native	
Iva axillaris	ASTERACEAE	POVERTY WEED	native	
Iva hayesiana	ASTERACEAE	SAN DIEGO MARSH-ELDER	native	
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		native	
Ivesia argyrocoma var. 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 gordonii var. alpicola	ROSACEAE		native	
Ivesia gordonii var. ursinorum	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 var. lycopodioides	ROSACEAE		native	
Ivesia lycopodioides var. megalopetala	ROSACEAE		native	
Ivesia lycopodioides var. 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	HYDRANGEACEAE		native	
Jamesia americana var. rosea	HYDRANGEACEAE	ROSY-PETALLED CLIFFBUSH	native	
Jaumea carnosa	ASTERACEAE		native	
Jensia rammii	ASTERACEAE		native	
Jensia yosemitana	ASTERACEAE	YOSEMITE TARPLANT	native	
Jepsonia heterandra	SAXIFRAGACEAE	FOOTHILL JEPSONIA	native	
Jepsonia malvifolia	SAXIFRAGACEAE	ISLAND JEPSONIA	native	
Jepsonia parryi	SAXIFRAGACEAE		native	
Johanneshowellia puberula	POLYGONACEAE	DOWNY BUCKWHEAT	native	
Juglans californica	JUGLANDACEAE	SOUTHERN CALIFORNIA BLACK WALNUT	native	
Juglans hindsii	JUGLANDACEAE	NORTHERN CALIFORNIA BLACK WALNUT	native	
Juncus acuminatus	JUNCACEAE	TAPERED RUSH	native	
Juncus acutus	JUNCACEAE		native	
Juncus acutus subsp. leopoldii	JUNCACEAE	SOUTHWESTERN SPINY RUSH	native	
Juncus ambiguus	JUNCACEAE	FROG RUSH	naturalized	
Juncus articulatus	JUNCACEAE		native	
Juncus articulatus subsp. articulatus	JUNCACEAE	JOINTED RUSH	native	
Juncus balticus	JUNCACEAE		native	
Juncus balticus subsp. ater	JUNCACEAE	BALTIC RUSH	native	
Juncus bolanderi	JUNCACEAE	BOLANDER'S RUSH	native	
Juncus brachyphyllus	JUNCACEAE	SHORTLEAVED RUSH	native	
Juncus breweri	JUNCACEAE	BREWER'S RUSH	native	
Juncus bryoides	JUNCACEAE	MOSS RUSH	native	
Juncus bufonius	JUNCACEAE	TOAD RUSH	native	
Juncus bufonius var. bufonius	JUNCACEAE		native	
Juncus bufonius var. congestus	JUNCACEAE	CLUSTERED TOAD RUSH	naturalized	
Juncus bufonius var. occidentalis	JUNCACEAE	WESTERN TOAD RUSH	native	
Juncus bulbosus	JUNCACEAE		naturalized	
Juncus capillaris	JUNCACEAE	HAIRSTEMMED RUSH	native	
Juncus capitatus	JUNCACEAE	DWARF RUSH	naturalized	
Juncus chlorocephalus	JUNCACEAE	GREENHEADED RUSH	native	
Juncus confusus	JUNCACEAE	COLORADO RUSH	native	
Juncus cooperi	JUNCACEAE	COOPER'S RUSH	native	
Juncus covillei	JUNCACEAE	COVILLE'S RUSH	native	
Juncus cyperoides	JUNCACEAE	BOLIVIAN RUSH	naturalized	
Juncus dichotomus	JUNCACEAE		naturalized	
Juncus diffusissimus	JUNCACEAE	SLIM-POD RUSH	naturalized	
Juncus digitatus	JUNCACEAE	FINGER RUSH	native	
Juncus drummondii	JUNCACEAE	DRUMMOND'S RUSH	native	
Juncus dubius	JUNCACEAE	MARIPOSA RUSH	native	
Juncus dudleyi	JUNCACEAE	DUDLEY'S RUSH	native	
Juncus duranii	JUNCACEAE	DURAN'S RUSH	native	
Juncus effusus	JUNCACEAE	LAMP RUSH	native	
Juncus effusus subsp. austrocalifornicus	JUNCACEAE	BAJA RUSH	native	
Juncus effusus subsp. effusus	JUNCACEAE	COMMON RUSH	naturalized	
Juncus effusus subsp. pacificus	JUNCACEAE	PACIFIC RUSH	native	
Juncus effusus subsp. solutus	JUNCACEAE	EASTERN SOFT RUSH	naturalized	
Juncus elliottii	JUNCACEAE		naturalized	
Juncus ensifolius	JUNCACEAE	SWORDLEAVED RUSH	native	
Juncus exiguus	JUNCACEAE	WEAK RUSH	native	
Juncus falcatus	JUNCACEAE		native	
Juncus falcatus subsp. falcatus	JUNCACEAE	SICKLELEAVED RUSH	native	
Juncus falcatus subsp. sitchensis	JUNCACEAE	ALASKAN SICKLELEAVED RUSH	native	
Juncus gerardii	JUNCACEAE		naturalized	
Juncus gerardii subsp. gerardii	JUNCACEAE	MUD RUSH	naturalized	
Juncus hemiendytus	JUNCACEAE		native	
Juncus hemiendytus var. abjectus	JUNCACEAE	CENTER BASIN RUSH	native	
Juncus hemiendytus var. hemiendytus	JUNCACEAE	HERMANN'S DWARF RUSH	native	
Juncus hesperius	JUNCACEAE	BOG RUSH	native	
Juncus howellii	JUNCACEAE	HOWELL'S RUSH	native	
Juncus interior	JUNCACEAE	INLAND RUSH	native	
Juncus kelloggii	JUNCACEAE	KELLOGG'S DWARF RUSH	native	
Juncus laccatus	JUNCACEAE	SHINY RUSH	native	
Juncus leiospermus	JUNCACEAE		native	
Juncus leiospermus var. ahartii	JUNCACEAE	AHART'S DWARF RUSH	native	
Juncus leiospermus var. leiospermus	JUNCACEAE	RED BLUFF DWARF RUSH	native	
Juncus lescurii	JUNCACEAE	SAN FRANCISCO RUSH	native	
Juncus longistylis	JUNCACEAE	LONG-STYLED RUSH	native	
Juncus luciensis	JUNCACEAE	SANTA LUCIA DWARF RUSH	native	
Juncus macrandrus	JUNCACEAE	LONG-ANTHERED RUSH	native	
Juncus macrophyllus	JUNCACEAE	LONG-LEAVED RUSH	native	
Juncus marginatus	JUNCACEAE	RED-ANTHERED RUSH	naturalized	
Juncus mertensianus	JUNCACEAE	MERTENS' RUSH	native	
Juncus mexicanus	JUNCACEAE	MEXICAN RUSH	native	
Juncus nevadensis	JUNCACEAE		native	
Juncus nevadensis var. inventus	JUNCACEAE	DUNE RUSH	native	
Juncus nevadensis var. nevadensis	JUNCACEAE	SIERRAN RUSH	native	
Juncus nodosus	JUNCACEAE	KNOTTED RUSH	native	
Juncus occidentalis	JUNCACEAE	WESTERN RUSH	native	
Juncus orthophyllus	JUNCACEAE	STRAIGHTLEAVED RUSH	native	
Juncus oxymeris	JUNCACEAE	POINTED RUSH	native	
Juncus parryi	JUNCACEAE	PARRY'S RUSH	native	
Juncus patens	JUNCACEAE	SPREADING RUSH	native	
Juncus phaeocephalus	JUNCACEAE		native	
Juncus phaeocephalus var. paniculatus	JUNCACEAE	PANICLED RUSH	native	
Juncus phaeocephalus var. phaeocephalus	JUNCACEAE	BROWNHEADED RUSH	native	
Juncus planifolius	JUNCACEAE	FLAT-LEAVED RUSH	naturalized	
Juncus regelii	JUNCACEAE	REGEL'S RUSH	native	
Juncus rugulosus	JUNCACEAE	WRINKLED RUSH	native	
Juncus saximontanus	JUNCACEAE	ROCKY MOUNTAIN RUSH	native	
Juncus supiniformis	JUNCACEAE	HAIR-LEAVED RUSH	native	
Juncus tenuis	JUNCACEAE	SLENDER RUSH	native	
Juncus textilis	JUNCACEAE	BASKET RUSH	native	
Juncus tiehmii	JUNCACEAE	TIEHM'S RUSH	native	
Juncus torreyi	JUNCACEAE	TORREY'S RUSH	native	
Juncus triformis	JUNCACEAE	YOSEMITE DWARF RUSH	native	
Juncus uncialis	JUNCACEAE	INCH-HIGH RUSH	native	
Juncus usitatus	JUNCACEAE	AUSTRALIAN RUSH	naturalized	
Juncus xiphioides	JUNCACEAE	IRIS-LEAVED RUSH	native	
Juniperus californica	CUPRESSACEAE	CALIFORNIA JUNIPER	native	
Juniperus communis	CUPRESSACEAE	COMMON JUNIPER	native	
Juniperus communis var. depressa	CUPRESSACEAE	DEPRESSED JUNIPER	native	
Juniperus communis var. jackii	CUPRESSACEAE	JACK'S JUNIPER	native	
Juniperus communis var. saxatilis	CUPRESSACEAE	MOUNTAIN JUNIPER	native	
Juniperus grandis	CUPRESSACEAE	GRAND JUNIPER	native	
Juniperus occidentalis	CUPRESSACEAE	WESTERN JUNIPER	native	
Juniperus osteosperma	CUPRESSACEAE	UTAH JUNIPER	native	
Justicia californica	ACANTHACEAE	CHUPAROSA	native	
Kallstroemia californica	ZYGOPHYLLACEAE		native	
Kallstroemia grandiflora	ZYGOPHYLLACEAE		naturalized	
Kallstroemia parviflora	ZYGOPHYLLACEAE		naturalized	
Kalmia polifolia	ERICACEAE	BOX 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		naturalized	
Kickxia spuria	PLANTAGINACEAE		naturalized	
Kniphofia uvaria	ASPHODELACEAE		naturalized	
Kobresia myosuroides	CYPERACEAE	SEEP KOBRESIA	native	
Kochia americana	CHENOPODIACEAE		native	
Kochia californica	CHENOPODIACEAE		native	
Kochia scoparia	CHENOPODIACEAE		naturalized	
Kochia scoparia subsp. scoparia	CHENOPODIACEAE		naturalized	
Koeberlinia spinosa	KOEBERLINIACEAE		native	
Koeberlinia spinosa var. tenuispina	KOEBERLINIACEAE	SLENDER-SPINED ALL THORN	native	
Koeleria gerardii	POACEAE	BRISTLY KOELERIA	naturalized	
Koeleria macrantha	POACEAE	JUNE GRASS	native	
Koelreuteria elegans	SAPINDACEAE		naturalized	acceptance uncertain
Kopsiopsis hookeri	OROBANCHACEAE	SMALL GROUND-CONE	native	
Kopsiopsis strobilacea	OROBANCHACEAE	CALIFORNIA GROUND-CONE	native	
Krameria bicolor	KRAMERIACEAE	WHITE RHATANY	native	
Krameria erecta	KRAMERIACEAE	LITTLE-LEAVED RHATANY	native	
Krascheninnikovia lanata	CHENOPODIACEAE	WINTER FAT	native	
Kyhosia bolanderi	ASTERACEAE		native	
Kyllinga brevifolia	CYPERACEAE		naturalized	
Lactuca biennis	ASTERACEAE		native	
Lactuca canadensis	ASTERACEAE		naturalized	
Lactuca ludoviciana	ASTERACEAE		naturalized	
Lactuca saligna	ASTERACEAE		naturalized	
Lactuca serriola	ASTERACEAE	PRICKLY LETTUCE	naturalized	
Lactuca tatarica	ASTERACEAE		native	
Lactuca tatarica subsp. pulchella	ASTERACEAE		native	
Lactuca virosa	ASTERACEAE		naturalized	
Ladeania lanceolata	FABACEAE		native	
Laennecia coulteri	ASTERACEAE	COULTER'S HORSEWEED	native	
Lagophylla dichotoma	ASTERACEAE		native	
Lagophylla glandulosa	ASTERACEAE		native	
Lagophylla minor	ASTERACEAE		native	
Lagophylla ramosissima	ASTERACEAE		native	
Lagunaria patersonia	MALVACEAE	COW ITCH TREE	naturalized	
Lagurus ovatus	POACEAE		naturalized	
Lamarckia aurea	POACEAE		naturalized	
Lamium amplexicaule	LAMIACEAE	HENBIT	naturalized	
Lamium purpureum	LAMIACEAE		naturalized	
Lampranthus spectabilis	AIZOACEAE		naturalized	acceptance uncertain
Landoltia punctata	ARACEAE		native	
Langloisia setosissima	POLEMONIACEAE		native	
Langloisia setosissima subsp. punctata	POLEMONIACEAE	LILAC SUNBONNET	native	
Langloisia setosissima subsp. setosissima	POLEMONIACEAE	BRISTLY LANGLOISIA	native	
Lappula redowskii	BORAGINACEAE		native	
Lappula redowskii var. cupulata	BORAGINACEAE	CROWNED STICKSEED	native	
Lappula redowskii var. redowskii	BORAGINACEAE	WESTERN STICKSEED	native	
Lapsana communis	ASTERACEAE		naturalized	
Larrea tridentata	ZYGOPHYLLACEAE		native	
Lasiospermum bipinnatum	ASTERACEAE		naturalized	
Lastarriaea coriacea	POLYGONACEAE	LEATHER-SPINEFLOWER	native	
Lasthenia burkei	ASTERACEAE	BURKE'S GOLDFIELDS	native	
Lasthenia californica	ASTERACEAE		native	
Lasthenia californica subsp. bakeri	ASTERACEAE	BAKER'S GOLDFIELDS	native	
Lasthenia californica subsp. californica	ASTERACEAE	CALIFORNIA GOLDFIELDS	native	
Lasthenia californica subsp. macrantha	ASTERACEAE	PERENNIAL GOLDFIELDS	native	
Lasthenia chrysantha	ASTERACEAE	ALKALI-SINK GOLDFIELDS	native	
Lasthenia conjugens	ASTERACEAE	CONTRA COSTA GOLDFIELDS	native	
Lasthenia coronaria	ASTERACEAE	ROYAL GOLDFIELDS	native	
Lasthenia debilis	ASTERACEAE	GREENE'S GOLDFIELDS	native	
Lasthenia ferrisiae	ASTERACEAE	FERRIS' GOLDFIELDS	native	
Lasthenia fremontii	ASTERACEAE	FREMONT'S GOLDFIELDS	native	
Lasthenia glaberrima	ASTERACEAE	SMOOTH GOLDFIELDS	native	
Lasthenia glabrata	ASTERACEAE		native	
Lasthenia glabrata subsp. coulteri	ASTERACEAE	COULTER'S GOLDFIELDS	native	
Lasthenia glabrata subsp. glabrata	ASTERACEAE	YELLOW-RAY GOLDFIELDS	native	
Lasthenia gracilis	ASTERACEAE	COMMON GOLDFIELDS	native	
Lasthenia leptalea	ASTERACEAE	SALINAS VALLEY GOLDFIELDS	native	
Lasthenia maritima	ASTERACEAE	SEASIDE GOLDFIELDS	native	
Lasthenia microglossa	ASTERACEAE	SMALL-RAY GOLDFIELDS	native	
Lasthenia minor	ASTERACEAE	COASTAL GOLDFIELDS	native	
Lasthenia platycarpha	ASTERACEAE	ALKALI GOLDFIELDS	native	
Lathrocasis tenerrima	POLEMONIACEAE	DELICATE GILIA	native	
Lathyrus angulatus	FABACEAE		naturalized	
Lathyrus biflorus	FABACEAE	TWO-FLOWERED PEA	native	
Lathyrus brownii	FABACEAE		native	
Lathyrus cicera	FABACEAE		naturalized	
Lathyrus delnorticus	FABACEAE	DEL NORTE PEA	native	
Lathyrus glandulosus	FABACEAE	STICKY PEA	native	
Lathyrus hirsutus	FABACEAE	CALEY PEA	naturalized	
Lathyrus hitchcockianus	FABACEAE	BULLFROG MOUNTAIN PEA	native	
Lathyrus japonicus	FABACEAE	SEASIDE PEA	native	
Lathyrus jepsonii	FABACEAE		native	
Lathyrus jepsonii var. californicus	FABACEAE		native	
Lathyrus jepsonii var. jepsonii	FABACEAE	DELTA TULE PEA	native	
Lathyrus lanszwertii	FABACEAE		native	
Lathyrus lanszwertii var. aridus	FABACEAE		native	
Lathyrus lanszwertii var. lanszwertii	FABACEAE		native	
Lathyrus lanszwertii var. tracyi	FABACEAE		native	
Lathyrus latifolius	FABACEAE	PERENNIAL SWEET PEA	naturalized	
Lathyrus littoralis	FABACEAE		native	
Lathyrus nevadensis	FABACEAE		native	
Lathyrus nevadensis var. nevadensis	FABACEAE		native	
Lathyrus odoratus	FABACEAE	SWEET PEA	naturalized	
Lathyrus palustris	FABACEAE	MARSH PEA	native	
Lathyrus polyphyllus	FABACEAE		native	
Lathyrus rigidus	FABACEAE	RIGID PEA	native	
Lathyrus sphaericus	FABACEAE		naturalized	
Lathyrus splendens	FABACEAE	PRIDE-OF-CALIFORNIA	native	
Lathyrus sulphureus	FABACEAE		native	
Lathyrus tingitanus	FABACEAE	TANGIER PEA	naturalized	
Lathyrus torreyi	FABACEAE		native	
Lathyrus vestitus	FABACEAE		native	
Lathyrus vestitus var. alefeldii	FABACEAE		native	
Lathyrus vestitus var. ochropetalus	FABACEAE		native	
Lathyrus vestitus var. vestitus	FABACEAE		native	
Lavatera olbia	MALVACEAE	TREE LAVATERA	naturalized	
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'S 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		native	
Lemna gibba	ARACEAE		native	
Lemna minor	ARACEAE		native	
Lemna minuta	ARACEAE		native	
Lemna trisulca	ARACEAE		native	
Lemna turionifera	ARACEAE		native	
Lemna valdiviana	ARACEAE		native	
Leonotis leonurus	LAMIACEAE		naturalized	acceptance uncertain
Leontodon saxatilis	ASTERACEAE	HAIRY HAWKBIT	naturalized	
Leontodon saxatilis subsp. longirostris	ASTERACEAE		naturalized	
Leontodon saxatilis subsp. saxatilis	ASTERACEAE		naturalized	
Leonurus sibiricus	LAMIACEAE		naturalized	acceptance uncertain
Lepechinia calycina	LAMIACEAE		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	ROSS' PITCHER SAGE	native	
Lepidium acutidens	BRASSICACEAE		native	
Lepidium appelianum	BRASSICACEAE	WHITE-TOP	naturalized	
Lepidium campestre	BRASSICACEAE		naturalized	
Lepidium chalepense	BRASSICACEAE	LENS-PODDED HOARY CRESS	naturalized	
Lepidium coronopus	BRASSICACEAE	SWINE CRESS	naturalized	
Lepidium densiflorum	BRASSICACEAE		native	
Lepidium dictyotum	BRASSICACEAE		native	
Lepidium didymum	BRASSICACEAE	LESSER SWINE CRESS	naturalized	
Lepidium draba	BRASSICACEAE	HEART-PODDED HOARY CRESS	naturalized	
Lepidium flavum	BRASSICACEAE		native	
Lepidium fremontii	BRASSICACEAE		native	
Lepidium heterophyllum	BRASSICACEAE		naturalized	
Lepidium jaredii	BRASSICACEAE	JARED'S PEPPERGRASS	native	
Lepidium lasiocarpum	BRASSICACEAE		native	
Lepidium lasiocarpum subsp. lasiocarpum	BRASSICACEAE		native	
Lepidium latifolium	BRASSICACEAE	PERENNIAL PEPPERWEED	naturalized	
Lepidium latipes	BRASSICACEAE		native	
Lepidium montanum	BRASSICACEAE		native	
Lepidium nitidum	BRASSICACEAE		native	
Lepidium oblongum	BRASSICACEAE		native	
Lepidium oxycarpum	BRASSICACEAE		native	
Lepidium perfoliatum	BRASSICACEAE		naturalized	
Lepidium pinnatifidum	BRASSICACEAE		naturalized	
Lepidium ramosissimum	BRASSICACEAE		native	
Lepidium strictum	BRASSICACEAE		native	
Lepidium thurberi	BRASSICACEAE		native	
Lepidium virginicum	BRASSICACEAE		native	
Lepidium virginicum subsp. menziesii	BRASSICACEAE		native	
Lepidium virginicum subsp. virginicum	BRASSICACEAE		native	
Lepidospartum latisquamum	ASTERACEAE		native	
Lepidospartum squamatum	ASTERACEAE		native	
Leptochloa dubia	POACEAE	GREEN SPRANGLETOP	native	
Leptochloa fusca	POACEAE	SPRANGLETOP	native	
Leptochloa fusca subsp. fascicularis	POACEAE	BEARDED SPRANGLETOP	native	
Leptochloa fusca subsp. uninervia	POACEAE	MEXICAN SPRANGLETOP	native	
Leptochloa panicea	POACEAE		native	
Leptochloa panicea subsp. brachiata	POACEAE	RED SPRANGLETOP	native	
Leptochloa viscida	POACEAE	SONORAN SPRANGLETOP	native	
Leptosiphon acicularis	POLEMONIACEAE	BRISTLY LEPTOSIPHON	native	
Leptosiphon ambiguus	POLEMONIACEAE	SERPENTINE LEPTOSIPHON	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	WHISKER BRUSH	native	
Leptosiphon croceus	POLEMONIACEAE	COAST YELLOW LEPTOSIPHON	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	SANTA ROSA MOUNTAINS LEPTOSIPHON	native	
Leptosiphon grandiflorus	POLEMONIACEAE	LARGE-FLOWERED LEPTOSIPHON	native	
Leptosiphon harknessii	POLEMONIACEAE		native	
Leptosiphon jepsonii	POLEMONIACEAE	JEPSON'S LEPTOSIPHON	native	
Leptosiphon latisectus	POLEMONIACEAE	BROAD-LOBED LEPTOSIPHON	native	
Leptosiphon lemmonii	POLEMONIACEAE		native	
Leptosiphon liniflorus	POLEMONIACEAE		native	
Leptosiphon minimus	POLEMONIACEAE		native	
Leptosiphon montanus	POLEMONIACEAE	MUSTANG CLOVER	native	
Leptosiphon nudatus	POLEMONIACEAE		native	
Leptosiphon nuttallii	POLEMONIACEAE		native	
Leptosiphon nuttallii subsp. howellii	POLEMONIACEAE	MOUNT TEDOC LEPTOSIPHON	native	
Leptosiphon nuttallii subsp. nuttallii	POLEMONIACEAE		native	
Leptosiphon nuttallii subsp. pubescens	POLEMONIACEAE		native	
Leptosiphon oblanceolatus	POLEMONIACEAE	SIERRA NEVADA LEPTOSIPHON	native	
Leptosiphon pachyphyllus	POLEMONIACEAE		native	
Leptosiphon parviflorus	POLEMONIACEAE		native	
Leptosiphon pygmaeus	POLEMONIACEAE		native	
Leptosiphon pygmaeus subsp. continentalis	POLEMONIACEAE		native	
Leptosiphon pygmaeus subsp. pygmaeus	POLEMONIACEAE	PYGMY LEPTOSIPHON	native	
Leptosiphon rattanii	POLEMONIACEAE	RATTAN'S LEPTOSIPHON	native	
Leptosiphon rosaceus	POLEMONIACEAE	ROSE LEPTOSIPHON	native	
Leptosiphon septentrionalis	POLEMONIACEAE		native	
Leptosiphon serrulatus	POLEMONIACEAE	MADERA LEPTOSIPHON	native	
Leptospermum laevigatum	MYRTACEAE	AUSTRALIAN TEA TREE	naturalized	
Leptosyne bigelovii	ASTERACEAE		native	
Leptosyne californica	ASTERACEAE		native	
Leptosyne calliopsidea	ASTERACEAE		native	
Leptosyne douglasii	ASTERACEAE		native	
Leptosyne gigantea	ASTERACEAE	GIANT TICKSEED	native	
Leptosyne hamiltonii	ASTERACEAE	MOUNT HAMILTON TICKSEED	native	
Leptosyne maritima	ASTERACEAE	SEA DAHLIA	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. peirsonii	ASTERACEAE		native	
Lessingia glandulifera var. tomentosa	ASTERACEAE	WARNER SPRINGS LESSINGIA	native	
Lessingia hololeuca	ASTERACEAE	WOOLLY-HEADED LESSINGIA	native	
Lessingia lemmonii	ASTERACEAE		native	
Lessingia leptoclada	ASTERACEAE	SIERRA LESSINGIA	native	
Lessingia micradenia	ASTERACEAE		native	
Lessingia micradenia var. glabrata	ASTERACEAE	SMOOTH LESSINGIA	native	
Lessingia micradenia var. micradenia	ASTERACEAE	TAMALPAIS LESSINGIA	native	
Lessingia nana	ASTERACEAE	DWARF LESSINGIA	native	
Lessingia nemaclada	ASTERACEAE		native	
Lessingia pectinata	ASTERACEAE		native	
Lessingia pectinata var. pectinata	ASTERACEAE		native	
Lessingia pectinata var. tenuipes	ASTERACEAE		native	
Lessingia ramulosa	ASTERACEAE		native	
Lessingia tenuis	ASTERACEAE	SPRING LESSINGIA	native	
Lessingia virgata	ASTERACEAE	WAND LESSINGIA	native	
Leucanthemum lacustre	ASTERACEAE	PORTUGUESE DAISY	naturalized	
Leucanthemum maximum	ASTERACEAE	SHASTA DAISY	naturalized	
Leucanthemum vulgare	ASTERACEAE	OX-EYE DAISY	naturalized	
Leucocrinum montanum	AGAVACEAE		native	
Leucosyris arida	ASTERACEAE		native	
Leucosyris carnosa	ASTERACEAE		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	GLANDULAR LEWISIA	native	
Lewisia kelloggii	MONTIACEAE	KELLOGG'S LEWISIA	native	
Lewisia kelloggii subsp. hutchisonii	MONTIACEAE	HUTCHISON'S LEWISIA	native	
Lewisia kelloggii subsp. kelloggii	MONTIACEAE		native	
Lewisia leeana	MONTIACEAE	QUILL-LEAVED LEWISIA	native	
Lewisia longipetala	MONTIACEAE	LONG-PETALED LEWISIA	native	
Lewisia nevadensis	MONTIACEAE	NEVADA LEWISIA	native	
Lewisia oppositifolia	MONTIACEAE	OPPOSITE-LEAVED LEWISIA	native	
Lewisia pygmaea	MONTIACEAE	DWARF LEWISIA	native	
Lewisia rediviva	MONTIACEAE		native	
Lewisia rediviva var. minor	MONTIACEAE	SMALL BITTERROOT	native	
Lewisia rediviva var. rediviva	MONTIACEAE	BITTERROOT	native	
Lewisia serrata	MONTIACEAE	SAW-TOOTHED LEWISIA	native	
Lewisia stebbinsii	MONTIACEAE	STEBBINS' LEWISIA	native	
Lewisia triphylla	MONTIACEAE	THREE-LEAVED LEWISIA	native	
Ligusticum apiifolium	APIACEAE		native	
Ligusticum californicum	APIACEAE		native	
Ligusticum grayi	APIACEAE		native	
Ligustrum japonicum	OLEACEAE	JAPANESE PRIVET	naturalized	
Ligustrum lucidum	OLEACEAE	CHINESE PRIVET	naturalized	
Ligustrum ovalifolium	OLEACEAE	CALIFORNIA PRIVET	naturalized	
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		native	
Lilium humboldtii subsp. humboldtii	LILIACEAE	HUMBOLDT LILY	native	
Lilium humboldtii subsp. ocellatum	LILIACEAE	OCELLATED HUMBOLDT LILY	native	
Lilium kelleyanum	LILIACEAE	KELLEY'S LILY	native	
Lilium kelloggii	LILIACEAE	KELLOGG'S LILY	native	
Lilium maritimum	LILIACEAE	COAST LILY	native	
Lilium occidentale	LILIACEAE	WESTERN LILY	native	
Lilium pardalinum	LILIACEAE		native	
Lilium pardalinum subsp. pardalinum	LILIACEAE	LEOPARD LILY	native	
Lilium pardalinum subsp. pitkinense	LILIACEAE	PITKIN MARSH LILY	native	
Lilium pardalinum subsp. shastense	LILIACEAE	SHASTA 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	SIERRA TIGER LILY	native	
Lilium rubescens	LILIACEAE	REDWOOD LILY	native	
Lilium washingtonianum	LILIACEAE	WASHINGTON LILY	native	
Lilium washingtonianum subsp. purpurascens	LILIACEAE	PURPLE-FLOWERED WASHINGTON LILY	native	
Lilium washingtonianum subsp. washingtonianum	LILIACEAE		native	
Limnanthes alba	LIMNANTHACEAE		native	
Limnanthes alba subsp. alba	LIMNANTHACEAE		native	
Limnanthes alba subsp. parishii	LIMNANTHACEAE		native	
Limnanthes alba subsp. versicolor	LIMNANTHACEAE		native	
Limnanthes bakeri	LIMNANTHACEAE	BAKER'S MEADOWFOAM	native	
Limnanthes douglasii	LIMNANTHACEAE		native	
Limnanthes douglasii subsp. douglasii	LIMNANTHACEAE		native	
Limnanthes douglasii subsp. nivea	LIMNANTHACEAE		native	
Limnanthes douglasii subsp. rosea	LIMNANTHACEAE		native	
Limnanthes douglasii subsp. striata	LIMNANTHACEAE		native	
Limnanthes douglasii subsp. sulphurea	LIMNANTHACEAE	POINT REYES MEADOWFOAM	native	
Limnanthes floccosa	LIMNANTHACEAE		native	
Limnanthes floccosa subsp. bellingeriana	LIMNANTHACEAE	BELLINGER'S MEADOWFOAM	native	
Limnanthes floccosa subsp. californica	LIMNANTHACEAE	BUTTE COUNTY MEADOWFOAM	native	
Limnanthes floccosa subsp. floccosa	LIMNANTHACEAE	WOOLLY MEADOWFOAM	native	
Limnanthes montana	LIMNANTHACEAE		native	
Limnanthes vinculans	LIMNANTHACEAE	SEBASTOPOL MEADOWFOAM	native	
Limnobium spongia	HYDROCHARITACEAE	AMERICAN FROGBIT	naturalized	acceptance uncertain
Limonium californicum	PLUMBAGINACEAE	WESTERN MARSH-ROSEMARY	native	
Limonium duriusculum	PLUMBAGINACEAE		naturalized	
Limonium perezii	PLUMBAGINACEAE		naturalized	
Limonium ramosissimum	PLUMBAGINACEAE		naturalized	
Limonium sinuatum	PLUMBAGINACEAE		naturalized	
Limosella acaulis	SCROPHULARIACEAE		native	
Limosella aquatica	SCROPHULARIACEAE		native	
Limosella australis	SCROPHULARIACEAE	DELTA MUDWORT	naturalized	
Linanthus arenicola	POLEMONIACEAE	SAND LINANTHUS	native	
Linanthus bellus	POLEMONIACEAE	DESERT BEAUTY	native	
Linanthus bigelovii	POLEMONIACEAE		native	
Linanthus californicus	POLEMONIACEAE	PRICKLY PHLOX	native	
Linanthus campanulatus	POLEMONIACEAE		native	
Linanthus concinnus	POLEMONIACEAE	SAN GABRIEL LINANTHUS	native	
Linanthus demissus	POLEMONIACEAE		native	
Linanthus dianthiflorus	POLEMONIACEAE		native	
Linanthus dichotomus	POLEMONIACEAE		native	
Linanthus dichotomus subsp. dichotomus	POLEMONIACEAE	EVENING SNOW	native	
Linanthus dichotomus subsp. meridianus	POLEMONIACEAE		native	
Linanthus filiformis	POLEMONIACEAE		native	
Linanthus inyoensis	POLEMONIACEAE		native	
Linanthus jaegeri	POLEMONIACEAE	SAN JACINTO LINANTHUS	native	
Linanthus jonesii	POLEMONIACEAE		native	
Linanthus killipii	POLEMONIACEAE	BALDWIN LAKE LINANTHUS	native	
Linanthus maculatus	POLEMONIACEAE	LITTLE SAN BERNARDINO MOUNTAINS LINANTHUS	native	
Linanthus orcuttii	POLEMONIACEAE	ORCUTT'S LINANTHUS	native	
Linanthus parryae	POLEMONIACEAE		native	
Linanthus pungens	POLEMONIACEAE	GRANITE GILIA	native	
Linaria bipartita	PLANTAGINACEAE		naturalized	
Linaria dalmatica	PLANTAGINACEAE		naturalized	
Linaria dalmatica subsp. dalmatica	PLANTAGINACEAE	DALMATIAN TOADFLAX	naturalized	
Linaria maroccana	PLANTAGINACEAE		naturalized	
Linaria pinifolia	PLANTAGINACEAE		naturalized	
Linaria vulgaris	PLANTAGINACEAE	BUTTER-AND-EGGS	naturalized	
Lindernia dubia	PLANTAGINACEAE		native	
Linnaea borealis	LINNAEACEAE		native	
Linnaea borealis var. longiflora	LINNAEACEAE		native	
Linum bienne	LINACEAE		naturalized	
Linum grandiflorum	LINACEAE		naturalized	
Linum lewisii	LINACEAE		native	
Linum lewisii var. lewisii	LINACEAE		native	
Linum puberulum	LINACEAE	PLAINS FLAX	native	
Linum trigynum	LINACEAE		naturalized	acceptance uncertain
Linum usitatissimum	LINACEAE		naturalized	
Lipocarpha aristulata	CYPERACEAE		native	
Lipocarpha micrantha	CYPERACEAE		native	
Lipocarpha occidentalis	CYPERACEAE		native	
Listera banksiana	ORCHIDACEAE	NORTHWEST TWAYBLADE	native	
Listera convallarioides	ORCHIDACEAE	BROAD-LEAVED TWAYBLADE	native	
Listera cordata	ORCHIDACEAE	HEART-LEAVED TWAYBLADE	native	
Lithophragma affine	SAXIFRAGACEAE		native	
Lithophragma bolanderi	SAXIFRAGACEAE		native	
Lithophragma campanulatum	SAXIFRAGACEAE		native	
Lithophragma cymbalaria	SAXIFRAGACEAE		native	
Lithophragma glabrum	SAXIFRAGACEAE		native	
Lithophragma heterophyllum	SAXIFRAGACEAE		native	
Lithophragma maximum	SAXIFRAGACEAE	SAN CLEMENTE ISLAND WOODLAND STAR	native	
Lithophragma parviflorum	SAXIFRAGACEAE		native	
Lithophragma parviflorum var. parviflorum	SAXIFRAGACEAE		native	
Lithophragma parviflorum var. trifoliatum	SAXIFRAGACEAE		native	
Lithophragma tenellum	SAXIFRAGACEAE		native	
Lithospermum arvense	BORAGINACEAE	GROMWELL	naturalized	
Lithospermum californicum	BORAGINACEAE	CALIFORNIA STONESEED	native	
Lithospermum incisum	BORAGINACEAE	PLAINS STONESEED	native	
Lithospermum ruderale	BORAGINACEAE	WESTERN 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		naturalized	
Loeflingia squarrosa	CARYOPHYLLACEAE	SPREADING PYGMYLEAF	native	
Loeseliastrum depressum	POLEMONIACEAE	DEPRESSED STANDING-CYPRESS	native	
Loeseliastrum matthewsii	POLEMONIACEAE	DESERT CALICO	native	
Loeseliastrum schottii	POLEMONIACEAE		native	
Logfia arizonica	ASTERACEAE	ARIZONA COTTONROSE	native	
Logfia depressa	ASTERACEAE	HIERBA LIMPIA	native	
Logfia filaginoides	ASTERACEAE	CALIFORNIA COTTONROSE	native	
Logfia gallica	ASTERACEAE	DAGGERLEAF COTTONROSE	naturalized	
Lomatium bicolor	APIACEAE		native	
Lomatium bicolor var. leptocarpum	APIACEAE		native	
Lomatium californicum	APIACEAE		native	
Lomatium canbyi	APIACEAE	CANBY'S LOMATIUM	native	
Lomatium caruifolium	APIACEAE		native	
Lomatium caruifolium var. caruifolium	APIACEAE		native	
Lomatium caruifolium var. denticulatum	APIACEAE		native	
Lomatium 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 foeniculaceum subsp. macdougalii	APIACEAE	MACDOUGAL'S LOMATIUM	native	
Lomatium grayi	APIACEAE	GRAY'S LOMATIUM	native	
Lomatium hallii	APIACEAE		native	
Lomatium hendersonii	APIACEAE	HENDERSON'S LOMATIUM	native	
Lomatium hooveri	APIACEAE	HOOVER'S LOMATIUM	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	MOUNT HAMILTON LOMATIUM	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		native	
Lonicera ciliosa	CAPRIFOLIACEAE	ORANGE HONEYSUCKLE	native	
Lonicera conjugialis	CAPRIFOLIACEAE		native	
Lonicera etrusca	CAPRIFOLIACEAE		naturalized	
Lonicera hispidula	CAPRIFOLIACEAE		native	
Lonicera interrupta	CAPRIFOLIACEAE		native	
Lonicera involucrata	CAPRIFOLIACEAE	TWINBERRY	native	
Lonicera involucrata var. involucrata	CAPRIFOLIACEAE		native	
Lonicera involucrata var. ledebourii	CAPRIFOLIACEAE		native	
Lonicera japonica	CAPRIFOLIACEAE	JAPANESE HONEYSUCKLE	naturalized	
Lonicera subspicata	CAPRIFOLIACEAE		native	
Lonicera subspicata var. denudata	CAPRIFOLIACEAE		native	
Lonicera subspicata var. subspicata	CAPRIFOLIACEAE	SANTA BARBARA HONEYSUCKLE	native	
Lonicera tatarica	CAPRIFOLIACEAE		naturalized	
Lotus angustissimus	FABACEAE		naturalized	
Lotus corniculatus	FABACEAE	BIRD'S-FOOT TREFOIL	naturalized	
Lotus tenuis	FABACEAE		naturalized	
Lotus uliginosus	FABACEAE		naturalized	
Ludwigia grandiflora	ONAGRACEAE	LARGE-FLOWERED PRIMROSE-WILLOW	naturalized	
Ludwigia hexapetala	ONAGRACEAE	URUGUAYAN PRIMROSE-WILLOW	naturalized	
Ludwigia palustris	ONAGRACEAE		native	
Ludwigia peploides	ONAGRACEAE		native	
Ludwigia peploides subsp. montevidensis	ONAGRACEAE		naturalized	
Ludwigia peploides subsp. peploides	ONAGRACEAE		native	
Ludwigia repens	ONAGRACEAE		native	
Luetkea pectinata	ROSACEAE		native	
Luina hypoleuca	ASTERACEAE		native	
Lunaria annua	BRASSICACEAE		naturalized	
Lupinus adsurgens	FABACEAE		native	
Lupinus affinis	FABACEAE		native	
Lupinus albicaulis	FABACEAE		native	
Lupinus albifrons	FABACEAE		native	
Lupinus albifrons var. abramsii	FABACEAE	ABRAMS' LUPINE	native	
Lupinus albifrons var. albifrons	FABACEAE		native	
Lupinus albifrons var. collinus	FABACEAE		native	
Lupinus albifrons var. douglasii	FABACEAE		native	
Lupinus andersonii	FABACEAE		native	
Lupinus angustiflorus	FABACEAE		native	
Lupinus antoninus	FABACEAE	ANTHONY PEAK LUPINE	native	
Lupinus apertus	FABACEAE		native	
Lupinus arboreus	FABACEAE	YELLOW BUSH LUPINE	native	
Lupinus arbustus	FABACEAE	SPUR LUPINE	native	
Lupinus argenteus	FABACEAE		native	
Lupinus argenteus var. argenteus	FABACEAE		native	
Lupinus argenteus var. heteranthus	FABACEAE		native	
Lupinus argenteus var. meionanthus	FABACEAE		native	
Lupinus argenteus var. montigenus	FABACEAE		native	
Lupinus argenteus var. palmeri	FABACEAE		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		native	
Lupinus breweri var. breweri	FABACEAE		native	
Lupinus breweri var. bryoides	FABACEAE		native	
Lupinus breweri var. grandiflorus	FABACEAE		native	
Lupinus cervinus	FABACEAE	SANTA LUCIA LUPINE	native	
Lupinus chamissonis	FABACEAE		native	
Lupinus citrinus	FABACEAE		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		native	
Lupinus croceus	FABACEAE		native	
Lupinus dalesiae	FABACEAE	QUINCY LUPINE	native	
Lupinus duranii	FABACEAE	MONO LAKE LUPINE	native	
Lupinus elatus	FABACEAE	SILKY LUPINE	native	
Lupinus elmeri	FABACEAE	SOUTH FORK MOUNTAIN LUPINE	native	
Lupinus excubitus	FABACEAE	GRAPE SODA LUPINE	native	
Lupinus excubitus var. austromontanus	FABACEAE		native	
Lupinus excubitus var. excubitus	FABACEAE		native	
Lupinus excubitus var. hallii	FABACEAE		native	
Lupinus excubitus var. johnstonii	FABACEAE	INTERIOR BUSH LUPINE	native	
Lupinus excubitus var. medius	FABACEAE	MOUNTAIN SPRINGS BUSH LUPINE	native	
Lupinus flavoculatus	FABACEAE		native	
Lupinus formosus	FABACEAE		native	
Lupinus formosus var. formosus	FABACEAE		native	
Lupinus formosus var. robustus	FABACEAE		native	
Lupinus fulcratus	FABACEAE		native	
Lupinus gracilentus	FABACEAE	SLENDER LUPINE	native	
Lupinus grayi	FABACEAE		native	
Lupinus guadalupensis	FABACEAE	GUADALUPE ISLAND LUPINE	native	
Lupinus hirsutissimus	FABACEAE	STINGING LUPINE	native	
Lupinus holmgrenianus	FABACEAE	HOLMGRENS' LUPINE	native	
Lupinus hyacinthinus	FABACEAE		native	
Lupinus lapidicola	FABACEAE	HELLER'S MOUNT EDDY LUPINE	native	
Lupinus latifolius	FABACEAE		native	
Lupinus latifolius var. barbatus	FABACEAE	BEARDED LUPINE	native	
Lupinus latifolius var. columbianus	FABACEAE		native	
Lupinus latifolius var. dudleyi	FABACEAE		native	
Lupinus latifolius var. latifolius	FABACEAE		native	
Lupinus latifolius var. parishii	FABACEAE		native	
Lupinus latifolius var. viridifolius	FABACEAE		native	
Lupinus lepidus	FABACEAE	DWARF LUPINE	native	
Lupinus lepidus var. confertus	FABACEAE		native	
Lupinus lepidus var. culbertsonii	FABACEAE	HOCKETT MEADOWS LUPINE	native	
Lupinus lepidus var. lobbii	FABACEAE		native	
Lupinus lepidus var. ramosus	FABACEAE		native	
Lupinus lepidus var. sellulus	FABACEAE		native	
Lupinus lepidus var. utahensis	FABACEAE	STEMLESS LUPINE	native	
Lupinus leucophyllus	FABACEAE		native	
Lupinus littoralis	FABACEAE		native	
Lupinus longifolius	FABACEAE		native	
Lupinus ludovicianus	FABACEAE	SAN LUIS OBISPO COUNTY LUPINE	native	
Lupinus luteolus	FABACEAE	BUTTER LUPINE	native	
Lupinus magnificus	FABACEAE		native	
Lupinus magnificus var. glarecola	FABACEAE	COSO MOUNTAINS LUPINE	native	
Lupinus magnificus var. magnificus	FABACEAE	PANAMINT MOUNTAINS LUPINE	native	
Lupinus microcarpus	FABACEAE	CHICK LUPINE	native	
Lupinus microcarpus var. densiflorus	FABACEAE		native	
Lupinus microcarpus var. horizontalis	FABACEAE		native	
Lupinus microcarpus var. microcarpus	FABACEAE		native	
Lupinus milo-bakeri	FABACEAE	MILO BAKER'S LUPINE	native	
Lupinus nanus	FABACEAE		native	
Lupinus nevadensis	FABACEAE	NEVADA LUPINE	native	
Lupinus nipomensis	FABACEAE	NIPOMO MESA LUPINE	native	
Lupinus obtusilobus	FABACEAE		native	
Lupinus odoratus	FABACEAE	MOJAVE LUPINE	native	
Lupinus onustus	FABACEAE		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		native	
Lupinus polyphyllus var. burkei	FABACEAE		native	
Lupinus polyphyllus var. pallidipes	FABACEAE		native	
Lupinus polyphyllus var. polyphyllus	FABACEAE		native	
Lupinus pratensis	FABACEAE		native	
Lupinus pratensis var. eriostachyus	FABACEAE		native	
Lupinus pratensis var. pratensis	FABACEAE		native	
Lupinus prunophilus	FABACEAE		native	acceptance uncertain
Lupinus pusillus	FABACEAE		native	
Lupinus pusillus var. intermontanus	FABACEAE	INTERMONTANE LUPINE	native	
Lupinus rivularis	FABACEAE		native	
Lupinus saxosus	FABACEAE		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		native	
Lupinus uncialis	FABACEAE	LILLIPUT LUPINE	native	
Lupinus variicolor	FABACEAE		native	
Luzula comosa	JUNCACEAE		native	
Luzula comosa var. comosa	JUNCACEAE		native	
Luzula comosa var. laxa	JUNCACEAE		native	
Luzula divaricata	JUNCACEAE		native	
Luzula orestera	JUNCACEAE		native	
Luzula parviflora	JUNCACEAE		native	
Luzula parviflora subsp. fastigiata	JUNCACEAE		native	
Luzula parviflora subsp. parviflora	JUNCACEAE		native	
Luzula piperi	JUNCACEAE		native	
Luzula spicata	JUNCACEAE		native	
Luzula subcongesta	JUNCACEAE		native	
Luzula subsessilis	JUNCACEAE		native	
Lychnis coronaria	CARYOPHYLLACEAE	ROSE CAMPION	naturalized	
Lycium andersonii	SOLANACEAE		native	
Lycium barbarum	SOLANACEAE	MATRIMONY VINE	naturalized	
Lycium brevipes	SOLANACEAE		native	
Lycium brevipes var. brevipes	SOLANACEAE		native	
Lycium brevipes var. hassei	SOLANACEAE	SANTA CATALINA ISLAND DESERT-THORN	native	
Lycium californicum	SOLANACEAE	CALIFORNIA BOX-THORN	native	
Lycium cooperi	SOLANACEAE		native	
Lycium ferocissimum	SOLANACEAE		naturalized	acceptance uncertain
Lycium fremontii	SOLANACEAE		native	
Lycium pallidum	SOLANACEAE		native	
Lycium pallidum var. oligospermum	SOLANACEAE		native	
Lycium parishii	SOLANACEAE	PARISH'S DESERT-THORN	native	
Lycium torreyi	SOLANACEAE		native	
Lycopersicon esculentum	SOLANACEAE	TOMATO	naturalized	
Lycopersicon peruvianum	SOLANACEAE		naturalized	
Lycopodiella inundata	LYCOPODIACEAE	INUNDATED BOG CLUB-MOSS	native	
Lycopodium clavatum	LYCOPODIACEAE	RUNNING-PINE	native	
Lycopus americanus	LAMIACEAE		native	
Lycopus asper	LAMIACEAE		native	
Lycopus uniflorus	LAMIACEAE	NORTHERN BUGLEWEED	native	
Lyonothamnus floribundus	ROSACEAE		native	
Lyonothamnus floribundus subsp. aspleniifolius	ROSACEAE	SANTA CRUZ ISLAND IRONWOOD	native	
Lyonothamnus floribundus subsp. floribundus	ROSACEAE	SANTA CATALINA ISLAND IRONWOOD	native	
Lyrocarpa coulteri	BRASSICACEAE	COULTER'S LYREPOD	native	
Lysichiton americanus	ARACEAE	YELLOW SKUNK-CABBAGE	native	
Lysimachia nummularia	MYRSINACEAE	CREEPING-JENNY	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		naturalized	
Madia anomala	ASTERACEAE		native	
Madia citrigracilis	ASTERACEAE		native	
Madia citriodora	ASTERACEAE		native	
Madia elegans	ASTERACEAE	COMMON MADIA	native	
Madia exigua	ASTERACEAE		native	
Madia glomerata	ASTERACEAE	MOUNTAIN TARWEED	native	
Madia gracilis	ASTERACEAE	GUMWEED	native	
Madia radiata	ASTERACEAE	SHOWY GOLDEN MADIA	native	
Madia sativa	ASTERACEAE	COAST TARWEED	native	
Madia subspicata	ASTERACEAE		native	
Maianthemum dilatatum	RUSCACEAE		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		native	
Malacothamnus fasciculatus	MALVACEAE	CHAPARRAL MALLOW	native	
Malacothamnus fasciculatus var. catalinensis	MALVACEAE	SANTA CATALINA ISLAND BUSH-MALLOW	native	
Malacothamnus fasciculatus var. fasciculatus	MALVACEAE		native	
Malacothamnus fasciculatus var. nesioticus	MALVACEAE	SANTA CRUZ ISLAND BUSH-MALLOW	native	
Malacothamnus fasciculatus var. nuttallii	MALVACEAE		native	
Malacothamnus fremontii	MALVACEAE		native	
Malacothamnus hallii	MALVACEAE	HALL'S BUSH-MALLOW	native	
Malacothamnus jonesii	MALVACEAE	JONES' BUSH-MALLOW	native	
Malacothamnus marrubioides	MALVACEAE		native	
Malacothamnus orbiculatus	MALVACEAE		native	
Malacothamnus palmeri	MALVACEAE		native	
Malacothamnus palmeri var. involucratus	MALVACEAE	CARMEL VALLEY BUSH-MALLOW	native	
Malacothamnus palmeri var. palmeri	MALVACEAE	SANTA LUCIA BUSH-MALLOW	native	
Malacothrix californica	ASTERACEAE		native	
Malacothrix clevelandii	ASTERACEAE		native	
Malacothrix coulteri	ASTERACEAE	SNAKE'S-HEAD	native	
Malacothrix floccifera	ASTERACEAE		native	
Malacothrix foliosa	ASTERACEAE		native	
Malacothrix foliosa subsp. crispifolia	ASTERACEAE	WAVY-LEAVED MALACOTHRIX	native	
Malacothrix foliosa subsp. foliosa	ASTERACEAE	LEAFY MALACOTHRIX	native	
Malacothrix foliosa subsp. philbrickii	ASTERACEAE	PHILBRICK'S MALACOTHRIX	native	
Malacothrix foliosa subsp. polycephala	ASTERACEAE	MANY-HEADED MALACOTHRIX	native	
Malacothrix glabrata	ASTERACEAE	DESERT DANDELION	native	
Malacothrix incana	ASTERACEAE	DUNEDELION	native	
Malacothrix indecora	ASTERACEAE	SANTA CRUZ ISLAND MALACOTHRIX	native	
Malacothrix junakii	ASTERACEAE	JUNAK'S MALACOTHRIX	native	
Malacothrix phaeocarpa	ASTERACEAE	DUSKY-FRUITED MALACOTHRIX	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	CLIFF MALACOTHRIX	native	
Malacothrix saxatilis var. tenuifolia	ASTERACEAE		native	
Malacothrix similis	ASTERACEAE	MEXICAN MALACOTHRIX	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	WHITE BOG ADDER'S-MOUTH	native	
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 pumila	ROSACEAE	APPLE	naturalized	
Malva arborea	MALVACEAE	TREE MALLOW	naturalized	
Malva assurgentiflora	MALVACEAE	ISLAND MALLOW	native	
Malva neglecta	MALVACEAE	COMMON MALLOW	naturalized	
Malva nicaeensis	MALVACEAE	BULL MALLOW	naturalized	
Malva parviflora	MALVACEAE	LITTLE MALLOW	naturalized	
Malva pseudolavatera	MALVACEAE	CRETAN MALLOW	naturalized	
Malva sylvestris	MALVACEAE	HIGH MALLOW	naturalized	
Malvella leprosa	MALVACEAE	WHITE-WEED	native	
Mammillaria dioica	CACTACEAE		native	
Mammillaria grahamii	CACTACEAE		native	
Mammillaria grahamii var. grahamii	CACTACEAE	GRAHAM'S FISHHOOK CACTUS	native	
Mammillaria tetrancistra	CACTACEAE		native	
Marah fabacea	CUCURBITACEAE	CALIFORNIA MAN-ROOT	native	
Marah horrida	CUCURBITACEAE	SIERRA MAN-ROOT	native	
Marah macrocarpa	CUCURBITACEAE	CHILICOTHE	native	
Marah oregana	CUCURBITACEAE	COAST MAN-ROOT	native	
Marah watsonii	CUCURBITACEAE	TAW MAN-ROOT	native	
Marina orcuttii	FABACEAE		native	
Marina orcuttii var. orcuttii	FABACEAE	CALIFORNIA MARINA	native	
Marina parryi	FABACEAE		native	
Marrubium vulgare	LAMIACEAE		naturalized	
Marsilea oligospora	MARSILEACEAE		native	
Marsilea vestita	MARSILEACEAE		native	
Marsilea vestita subsp. vestita	MARSILEACEAE		native	
Matelea parvifolia	APOCYNACEAE	SPEARLEAF	native	
Matricaria chamomilla	ASTERACEAE	GERMAN CHAMOMILE	naturalized	
Matricaria discoidea	ASTERACEAE	RAYLESS CHAMOMILE	naturalized	
Matricaria occidentalis	ASTERACEAE	VALLEY MAYWEED	native	
Matthiola incana	BRASSICACEAE		naturalized	
Maurandella antirrhiniflora	PLANTAGINACEAE	VIOLET TWINING SNAPDRAGON	native	
Maytenus boaria	CELASTRACEAE	MAITEN TREE	naturalized	
Meconella californica	PAPAVERACEAE		native	
Meconella denticulata	PAPAVERACEAE		native	
Meconella oregana	PAPAVERACEAE	OREGON MECONELLA	native	
Medicago arabica	FABACEAE	SPOTTED BURCLOVER	naturalized	
Medicago lupulina	FABACEAE	BLACK MEDICK	naturalized	
Medicago minima	FABACEAE	BURCLOVER	naturalized	
Medicago polymorpha	FABACEAE	CALIFORNIA BURCLOVER	naturalized	
Medicago praecox	FABACEAE		naturalized	
Medicago rigidula	FABACEAE	TIFTON BURCLOVER	naturalized	
Medicago sativa	FABACEAE	ALFALFA	naturalized	
Medicago scutellata	FABACEAE	SNAIL MEDICK	naturalized	
Medicago truncatula	FABACEAE	BARREL CLOVER	naturalized	
Melaleuca viminalis	MYRTACEAE	WEEPING BOTTLEBRUSH	naturalized	
Melia azedarach	MELIACEAE	PERSIAN LILAC	naturalized	
Melica aristata	POACEAE	AWNED MELIC	native	
Melica bulbosa	POACEAE	ONIONGRASS	native	
Melica californica	POACEAE	CALIFORNIA MELIC	native	
Melica frutescens	POACEAE	WOODY MELIC	native	
Melica fugax	POACEAE	LITTLE MELIC	native	
Melica geyeri	POACEAE	GEYER'S ONIONGRASS	native	
Melica harfordii	POACEAE		native	
Melica imperfecta	POACEAE	LITTLE CALIFORNIA MELICA	native	
Melica spectabilis	POACEAE	PURPLE ONIONGRASS	native	
Melica stricta	POACEAE	ROCK MELIC	native	
Melica subulata	POACEAE	ALASKAN ONIONGRASS	native	
Melica torreyana	POACEAE	TORREY'S MELIC	native	
Melilotus albus	FABACEAE	WHITE SWEETCLOVER	naturalized	
Melilotus indicus	FABACEAE	SOURCLOVER	naturalized	
Melilotus officinalis	FABACEAE	YELLOW SWEETCLOVER	naturalized	
Melinis repens	POACEAE		naturalized	
Melinis repens subsp. repens	POACEAE	RUBY GRASS	naturalized	
Melissa officinalis	LAMIACEAE	LEMON BALM	naturalized	
Menodora scabra	OLEACEAE	ROUGH MENODORA	native	
Menodora scabra var. glabrescens	OLEACEAE		native	
Menodora scabra var. scabra	OLEACEAE		native	
Menodora spinescens	OLEACEAE		native	
Menodora spinescens var. mohavensis	OLEACEAE		native	
Menodora spinescens var. spinescens	OLEACEAE		native	
Mentha	LAMIACEAE	APPLE MINT	naturalized	
Mentha	LAMIACEAE	APPLE MINT	naturalized	
Mentha	LAMIACEAE	PEPPERMINT	naturalized	
Mentha	LAMIACEAE	REDSTEM MINT	naturalized	
Mentha	LAMIACEAE	SCOTCH SPEARMINT	naturalized	
Mentha aquatica	LAMIACEAE	WATERMINT	naturalized	
Mentha arvensis	LAMIACEAE	FIELD MINT	naturalized	
Mentha canadensis	LAMIACEAE	JAPANESE PEPPERMINT	native	
Mentha longifolia	LAMIACEAE		naturalized	
Mentha pulegium	LAMIACEAE	PENNYROYAL	naturalized	
Mentha spicata	LAMIACEAE	SPEARMINT	naturalized	
Mentha suaveolens	LAMIACEAE	PINEAPPLE MINT	naturalized	
Mentzelia affinis	LOASACEAE		native	
Mentzelia albicaulis	LOASACEAE		native	
Mentzelia congesta	LOASACEAE		native	
Mentzelia crocea	LOASACEAE		native	
Mentzelia desertorum	LOASACEAE		native	
Mentzelia dispersa	LOASACEAE		native	
Mentzelia eremophila	LOASACEAE	SOLITARY BLAZING STAR	native	
Mentzelia gracilenta	LOASACEAE		native	
Mentzelia hirsutissima	LOASACEAE	HAIRY STICKLEAF	native	
Mentzelia involucrata	LOASACEAE		native	
Mentzelia inyoensis	LOASACEAE	INYO BLAZING STAR	native	
Mentzelia jonesii	LOASACEAE		native	
Mentzelia laevicaulis	LOASACEAE		native	
Mentzelia lindleyi	LOASACEAE		native	
Mentzelia longiloba	LOASACEAE		native	
Mentzelia micrantha	LOASACEAE		native	
Mentzelia montana	LOASACEAE		native	
Mentzelia nitens	LOASACEAE		native	
Mentzelia obscura	LOASACEAE		native	
Mentzelia oreophila	LOASACEAE		native	
Mentzelia pectinata	LOASACEAE		native	
Mentzelia polita	LOASACEAE	POLISHED BLAZING STAR	native	
Mentzelia pterosperma	LOASACEAE	WING-SEED BLAZING STAR	native	
Mentzelia ravenii	LOASACEAE		native	
Mentzelia reflexa	LOASACEAE		native	
Mentzelia torreyi	LOASACEAE	TORREY'S BLAZING STAR	native	
Mentzelia tricuspis	LOASACEAE	SPINY-HAIR BLAZING STAR	native	
Mentzelia tridentata	LOASACEAE	CREAMY BLAZING STAR	native	
Mentzelia veatchiana	LOASACEAE		native	
Menyanthes trifoliata	MENYANTHACEAE		native	
Menziesia ferruginea	ERICACEAE	MOCK AZALEA	native	
Mercurialis annua	EUPHORBIACEAE		naturalized	
Mertensia bella	BORAGINACEAE	OREGON LUNGWORT	native	
Mertensia ciliata	BORAGINACEAE		native	
Mertensia ciliata var. stomatechoides	BORAGINACEAE	STREAMSIDE BLUEBELL	native	
Mertensia cusickii	BORAGINACEAE	TOIYABE BLUEBELLS	native	
Mertensia longiflora	BORAGINACEAE	LONG BLUEBELLS	native	
Mertensia oblongifolia	BORAGINACEAE	SAGEBRUSH BLUEBELL	native	
Mertensia oblongifolia var. amoena	BORAGINACEAE	BEAUTIFUL SAGEBRUSH BLUEBELLS	native	
Mertensia oblongifolia var. nevadensis	BORAGINACEAE		native	
Mertensia oblongifolia var. oblongifolia	BORAGINACEAE	SAGEBRUSH BLUEBELLS	native	
Mesembryanthemum crystallinum	AIZOACEAE	CRYSTALLINE ICEPLANT	naturalized	
Mesembryanthemum nodiflorum	AIZOACEAE	SLENDER-LEAVED ICEPLANT	naturalized	
Micranthes aprica	SAXIFRAGACEAE		native	
Micranthes bryophora	SAXIFRAGACEAE		native	
Micranthes californica	SAXIFRAGACEAE		native	
Micranthes ferruginea	SAXIFRAGACEAE		native	
Micranthes fragosa	SAXIFRAGACEAE		native	
Micranthes howellii	SAXIFRAGACEAE	HOWELL'S SAXIFRAGE	native	
Micranthes integrifolia	SAXIFRAGACEAE		native	
Micranthes marshallii	SAXIFRAGACEAE		native	
Micranthes nidifica	SAXIFRAGACEAE		native	
Micranthes odontoloma	SAXIFRAGACEAE		native	
Micranthes oregana	SAXIFRAGACEAE		native	
Micranthes tolmiei	SAXIFRAGACEAE		native	
Micromonolepis pusilla	CHENOPODIACEAE	DWARF MONOLEPIS	native	
Micropus amphibolus	ASTERACEAE	MOUNT DIABLO COTTONSEED	native	
Micropus californicus	ASTERACEAE		native	
Micropus californicus var. californicus	ASTERACEAE	COTTONTOP	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	SMALL-FLOWERED MICROSERIS	native	
Microseris douglasii subsp. tenella	ASTERACEAE		native	
Microseris elegans	ASTERACEAE		native	
Microseris laciniata	ASTERACEAE		native	
Microseris laciniata subsp. detlingii	ASTERACEAE	DETLING'S SILVERPUFFS	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	MARSH MICROSERIS	native	
Microseris sylvatica	ASTERACEAE	SYLVAN MICROSERIS	native	
Microsteris gracilis	POLEMONIACEAE		native	
Mimulus alsinoides	PHRYMACEAE		native	
Mimulus androsaceus	PHRYMACEAE		native	
Mimulus angustatus	PHRYMACEAE		native	
Mimulus aurantiacus	PHRYMACEAE		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		native	
Mimulus bigelovii	PHRYMACEAE		native	
Mimulus bigelovii var. bigelovii	PHRYMACEAE		native	
Mimulus bigelovii var. cuspidatus	PHRYMACEAE		native	
Mimulus bolanderi	PHRYMACEAE		native	
Mimulus breviflorus	PHRYMACEAE		native	
Mimulus brevipes	PHRYMACEAE		native	
Mimulus breweri	PHRYMACEAE		native	
Mimulus cardinalis	PHRYMACEAE		native	
Mimulus clevelandii	PHRYMACEAE	CLEVELAND'S BUSH MONKEYFLOWER	native	
Mimulus congdonii	PHRYMACEAE		native	
Mimulus constrictus	PHRYMACEAE		native	
Mimulus cusickii	PHRYMACEAE	CUSICK'S MONKEYFLOWER	native	
Mimulus dentatus	PHRYMACEAE		native	
Mimulus douglasii	PHRYMACEAE		native	
Mimulus evanescens	PHRYMACEAE	EPHEMERAL MONKEYFLOWER	native	
Mimulus exiguus	PHRYMACEAE	SAN BERNARDINO MOUNTAINS MONKEYFLOWER	native	
Mimulus filicaulis	PHRYMACEAE	SLENDER-STEMMED MONKEYFLOWER	native	
Mimulus floribundus	PHRYMACEAE		native	
Mimulus fremontii	PHRYMACEAE		native	
Mimulus fremontii var. fremontii	PHRYMACEAE		native	
Mimulus fremontii var. vandenbergensis	PHRYMACEAE	VANDENBERG MONKEYFLOWER	native	
Mimulus glaucescens	PHRYMACEAE	SHIELD-BRACTED MONKEYFLOWER	native	
Mimulus gracilipes	PHRYMACEAE	SLENDER-STALKED MONKEYFLOWER	native	
Mimulus guttatus	PHRYMACEAE		native	
Mimulus inconspicuus	PHRYMACEAE	SMALL-FLOWERED MONKEYFLOWER	native	
Mimulus johnstonii	PHRYMACEAE	JOHNSTON'S MONKEYFLOWER	native	
Mimulus kelloggii	PHRYMACEAE		native	
Mimulus laciniatus	PHRYMACEAE	CUT-LEAVED MONKEYFLOWER	native	
Mimulus latidens	PHRYMACEAE		native	
Mimulus layneae	PHRYMACEAE		native	
Mimulus leptaleus	PHRYMACEAE		native	
Mimulus lewisii	PHRYMACEAE		native	
Mimulus mohavensis	PHRYMACEAE	MOJAVE MONKEYFLOWER	native	
Mimulus montioides	PHRYMACEAE		native	
Mimulus moschatus	PHRYMACEAE	MUSK MONKEYFLOWER	native	
Mimulus nanus	PHRYMACEAE		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		native	
Mimulus parishii	PHRYMACEAE		native	
Mimulus parryi	PHRYMACEAE	PARRY'S MONKEYFLOWER	native	
Mimulus pictus	PHRYMACEAE	CALICO MONKEYFLOWER	native	
Mimulus pilosus	PHRYMACEAE		native	
Mimulus primuloides	PHRYMACEAE		native	
Mimulus primuloides var. linearifolius	PHRYMACEAE		native	
Mimulus primuloides var. primuloides	PHRYMACEAE		native	
Mimulus pulchellus	PHRYMACEAE	YELLOW-LIP PANSY MONKEYFLOWER	native	
Mimulus pulsiferae	PHRYMACEAE		native	
Mimulus purpureus	PHRYMACEAE	LITTLE PURPLE MONKEYFLOWER	native	
Mimulus pygmaeus	PHRYMACEAE	EGG LAKE MONKEYFLOWER	native	
Mimulus rattanii	PHRYMACEAE		native	
Mimulus ringens	PHRYMACEAE		native	
Mimulus rubellus	PHRYMACEAE		native	
Mimulus rupicola	PHRYMACEAE	DEATH VALLEY MONKEYFLOWER	native	
Mimulus shevockii	PHRYMACEAE	KELSO CREEK MONKEYFLOWER	native	
Mimulus suksdorfii	PHRYMACEAE		native	
Mimulus tilingii	PHRYMACEAE		native	
Mimulus torreyi	PHRYMACEAE		native	
Mimulus tricolor	PHRYMACEAE		native	
Mimulus viscidus	PHRYMACEAE		native	
Mimulus viscidus var. compactus	PHRYMACEAE		native	
Mimulus viscidus var. viscidus	PHRYMACEAE		native	
Mimulus whitneyi	PHRYMACEAE		native	
Minuartia californica	CARYOPHYLLACEAE	CALIFORNIA SANDWORT	native	
Minuartia cismontana	CARYOPHYLLACEAE	CISMONTANE MINUARTIA	native	
Minuartia decumbens	CARYOPHYLLACEAE	THE LASSICS SANDWORT	native	
Minuartia douglasii	CARYOPHYLLACEAE	DOUGLAS' STITCHWORT	native	
Minuartia howellii	CARYOPHYLLACEAE	HOWELL'S SANDWORT	native	
Minuartia nuttallii	CARYOPHYLLACEAE	NUTTALL'S 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	ANNUAL SANDWORT	native	
Minuartia rosei	CARYOPHYLLACEAE	PEANUT SANDWORT	native	
Minuartia rubella	CARYOPHYLLACEAE	REDDISH SANDWORT	native	
Minuartia stolonifera	CARYOPHYLLACEAE	SCOTT MOUNTAIN SANDWORT	native	
Minuartia stricta	CARYOPHYLLACEAE	BOG SANDWORT	native	
Mirabilis albida	NYCTAGINACEAE		native	
Mirabilis alipes	NYCTAGINACEAE		native	
Mirabilis coccinea	NYCTAGINACEAE	RED FOUR O'CLOCK	native	
Mirabilis greenei	NYCTAGINACEAE	GREENE'S FOUR O'CLOCK	native	
Mirabilis jalapa	NYCTAGINACEAE		naturalized	
Mirabilis jalapa var. jalapa	NYCTAGINACEAE		naturalized	
Mirabilis laevis	NYCTAGINACEAE		native	
Mirabilis laevis var. crassifolia	NYCTAGINACEAE	WISHBONE BUSH	native	
Mirabilis laevis var. retrorsa	NYCTAGINACEAE		native	
Mirabilis laevis var. villosa	NYCTAGINACEAE		native	
Mirabilis linearis	NYCTAGINACEAE		naturalized	
Mirabilis linearis var. linearis	NYCTAGINACEAE		naturalized	
Mirabilis multiflora	NYCTAGINACEAE		native	
Mirabilis multiflora var. glandulosa	NYCTAGINACEAE		native	
Mirabilis multiflora var. pubescens	NYCTAGINACEAE		native	
Mirabilis tenuiloba	NYCTAGINACEAE	SLENDER-LOBED FOUR O'CLOCK	native	
Mitellastra caulescens	SAXIFRAGACEAE		native	
Modiola caroliniana	MALVACEAE	MODIOLA	naturalized	
Moehringia macrophylla	CARYOPHYLLACEAE	LARGE-LEAVED SANDWORT	native	
Moenchia erecta	CARYOPHYLLACEAE		naturalized	
Moenchia erecta subsp. erecta	CARYOPHYLLACEAE	UPRIGHT CHICKWEED	naturalized	
Mohavea breviflora	PLANTAGINACEAE		native	
Mohavea confertiflora	PLANTAGINACEAE	GHOST FLOWER	native	
Mollugo cerviana	MOLLUGINACEAE		naturalized	
Mollugo verticillata	MOLLUGINACEAE		naturalized	
Monarda pectinata	LAMIACEAE	PLAINS BEE BALM	native	
Monardella australis	LAMIACEAE		native	
Monardella australis subsp. australis	LAMIACEAE		native	
Monardella australis subsp. cinerea	LAMIACEAE	GRAY MONARDELLA	native	
Monardella australis subsp. jokerstii	LAMIACEAE	JOKERST'S MONARDELLA	native	
Monardella beneolens	LAMIACEAE	SWEET-SMELLING MONARDELLA	native	
Monardella boydii	LAMIACEAE		native	
Monardella breweri	LAMIACEAE		native	
Monardella breweri subsp. breweri	LAMIACEAE		native	
Monardella breweri subsp. glandulifera	LAMIACEAE		native	
Monardella breweri subsp. lanceolata	LAMIACEAE	MUSTANG MINT	native	
Monardella breweri subsp. microcephala	LAMIACEAE		native	
Monardella candicans	LAMIACEAE	SIERRA MONARDELLA	native	
Monardella douglasii	LAMIACEAE		native	
Monardella eremicola	LAMIACEAE		native	
Monardella exilis	LAMIACEAE		native	
Monardella follettii	LAMIACEAE	FOLLETT'S MONARDELLA	native	
Monardella hypoleuca	LAMIACEAE		native	
Monardella hypoleuca subsp. hypoleuca	LAMIACEAE		native	
Monardella hypoleuca subsp. intermedia	LAMIACEAE		native	
Monardella hypoleuca subsp. lanata	LAMIACEAE	FELT-LEAVED MONARDELLA	native	
Monardella lanceolata	LAMIACEAE		native	
Monardella linoides	LAMIACEAE		native	
Monardella linoides subsp. anemonoides	LAMIACEAE		native	
Monardella linoides subsp. erecta	LAMIACEAE		native	
Monardella linoides subsp. linoides	LAMIACEAE		native	
Monardella linoides subsp. oblonga	LAMIACEAE	TEHACHAPI MONARDELLA	native	
Monardella linoides subsp. sierrae	LAMIACEAE		native	
Monardella macrantha	LAMIACEAE		native	
Monardella macrantha subsp. hallii	LAMIACEAE	HALL'S MONARDELLA	native	
Monardella macrantha subsp. macrantha	LAMIACEAE		native	
Monardella mojavensis	LAMIACEAE		native	
Monardella nana	LAMIACEAE		native	
Monardella odoratissima	LAMIACEAE	COYOTE-MINT	native	
Monardella odoratissima subsp. glauca	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 saxicola	LAMIACEAE	ROCK MONARDELLA	native	
Monardella sheltonii	LAMIACEAE		native	
Monardella sinuata	LAMIACEAE		native	
Monardella sinuata subsp. nigrescens	LAMIACEAE		native	
Monardella sinuata subsp. sinuata	LAMIACEAE		native	
Monardella stebbinsii	LAMIACEAE	STEBBINS' MONARDELLA	native	
Monardella stoneana	LAMIACEAE	JENNIFER'S MONARDELLA	native	
Monardella undulata	LAMIACEAE		native	
Monardella undulata subsp. arguelloensis	LAMIACEAE		native	
Monardella undulata subsp. crispa	LAMIACEAE	CRISP MONARDELLA	native	
Monardella undulata subsp. undulata	LAMIACEAE	SAN LUIS OBISPO MONARDELLA	native	
Monardella venosa	LAMIACEAE	VEINY MONARDELLA	native	
Monardella villosa	LAMIACEAE	COYOTE-MINT	native	
Monardella villosa subsp. franciscana	LAMIACEAE		native	
Monardella villosa subsp. obispoensis	LAMIACEAE		native	
Monardella villosa subsp. villosa	LAMIACEAE		native	
Monardella viminea	LAMIACEAE	WILLOWY MONARDELLA	native	
Monardella viridis	LAMIACEAE	GREEN MONARDELLA	native	
Moneses uniflora	ERICACEAE	WOODNYMPH	native	
Monochoria vaginalis	PONTEDERIACEAE		naturalized	
Monolepis nuttalliana	CHENOPODIACEAE	NUTTALL'S POVERTY WEED	native	
Monolepis spathulata	CHENOPODIACEAE		native	
Monolopia congdonii	ASTERACEAE	SAN JOAQUIN WOOLLYTHREADS	native	
Monolopia gracilens	ASTERACEAE	WOODLAND WOOLLYTHREADS	native	
Monolopia lanceolata	ASTERACEAE	COMMON HILLSIDE DAISY	native	
Monolopia major	ASTERACEAE		native	
Monolopia stricta	ASTERACEAE		native	
Monoptilon bellidiforme	ASTERACEAE		native	
Monoptilon bellioides	ASTERACEAE		native	
Monotropa hypopitys	ERICACEAE	PINESAP	native	
Monotropa uniflora	ERICACEAE	GHOST-PIPE	native	
Montia chamissoi	MONTIACEAE	TOAD LILY	native	
Montia dichotoma	MONTIACEAE		native	
Montia diffusa	MONTIACEAE		native	
Montia fontana	MONTIACEAE	BLINKS	native	
Montia howellii	MONTIACEAE	HOWELL'S MONTIA	native	
Montia linearis	MONTIACEAE		native	
Montia parvifolia	MONTIACEAE		native	
Morella californica	MYRICACEAE	WAX MYRTLE	native	
Mortonia utahensis	CELASTRACEAE	UTAH MORTONIA	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	WIREVINE	naturalized	
Muehlenbeckia hastulata var. hastulata	POLYGONACEAE		naturalized	acceptance uncertain
Muhlenbergia alopecuroides	POACEAE	WOLFTAIL	native	
Muhlenbergia andina	POACEAE	FOXTAIL MUHLY	native	
Muhlenbergia appressa	POACEAE	APPRESSED MUHLY	native	
Muhlenbergia arsenei	POACEAE	TOUGH MUHLY	native	
Muhlenbergia asperifolia	POACEAE	SCRATCH GRASS	native	
Muhlenbergia californica	POACEAE	CALIFORNIA MUHLY	native	
Muhlenbergia filiformis	POACEAE	PULL-UP MUHLY	native	
Muhlenbergia fragilis	POACEAE	DELICATE MUHLY	native	
Muhlenbergia jonesii	POACEAE	JONES' MUHLY	native	
Muhlenbergia mexicana	POACEAE		native	
Muhlenbergia microsperma	POACEAE	LITTLESEED MUHLY	native	
Muhlenbergia minutissima	POACEAE		native	
Muhlenbergia montana	POACEAE	MOUNTAIN MUHLY	native	
Muhlenbergia pauciflora	POACEAE	FEW-FLOWERED MUHLY	native	
Muhlenbergia porteri	POACEAE		native	
Muhlenbergia richardsonis	POACEAE	MAT MUHLY	native	
Muhlenbergia rigens	POACEAE	DEER GRASS	native	
Muhlenbergia utilis	POACEAE	APAREJO GRASS	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	BLAIR'S MUNZOTHAMNUS	native	
Myoporum laetum	SCROPHULARIACEAE	NGAIO TREE	naturalized	
Myosotis discolor	BORAGINACEAE	CHANGING FORGET-ME-NOT	naturalized	
Myosotis latifolia	BORAGINACEAE	BROADLEAVED FORGET-ME-NOT	naturalized	
Myosotis laxa	BORAGINACEAE	BAY FORGET-ME-NOT	native	
Myosotis micrantha	BORAGINACEAE	SMALL-FLOWERED FORGET-ME-NOT	naturalized	
Myosotis scorpioides	BORAGINACEAE	WATER FORGET-ME-NOT	naturalized	
Myosurus apetalus	RANUNCULACEAE		native	
Myosurus apetalus var. borealis	RANUNCULACEAE		native	
Myosurus apetalus var. montanus	RANUNCULACEAE		native	
Myosurus cupulatus	RANUNCULACEAE		native	
Myosurus minimus	RANUNCULACEAE		native	
Myosurus sessilis	RANUNCULACEAE		native	
Myrica hartwegii	MYRICACEAE	SIERRA SWEET BAY	native	
Myriophyllum aquaticum	HALORAGACEAE	PARROT'S FEATHER	naturalized	
Myriophyllum hippuroides	HALORAGACEAE	WESTERN WATER-MILFOIL	native	
Myriophyllum quitense	HALORAGACEAE	ANDEAN WATER-MILFOIL	native	
Myriophyllum sibiricum	HALORAGACEAE	SIBERIAN WATER-MILFOIL	native	
Myriophyllum spicatum	HALORAGACEAE	EURASIAN WATER-MILFOIL	naturalized	
Myriophyllum verticillatum	HALORAGACEAE	WHORLED 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		native	
Najas guadalupensis subsp. guadalupensis	HYDROCHARITACEAE	COMMON WATER-NYMPH	native	
Najas marina	HYDROCHARITACEAE	HOLLY-LEAVED WATER-NYMPH	native	
Nama aretioides	BORAGINACEAE		native	
Nama aretioides var. californicum	BORAGINACEAE		native	
Nama aretioides var. multiflorum	BORAGINACEAE		native	
Nama californicum	BORAGINACEAE		native	
Nama demissum	BORAGINACEAE		native	
Nama demissum var. covillei	BORAGINACEAE		native	
Nama demissum var. demissum	BORAGINACEAE		native	
Nama densum	BORAGINACEAE		native	
Nama densum var. densum	BORAGINACEAE		native	
Nama densum var. parviflorum	BORAGINACEAE		native	
Nama depressum	BORAGINACEAE		native	
Nama dichotomum	BORAGINACEAE		native	
Nama dichotomum var. dichotomum	BORAGINACEAE	FORKED PURPLE MAT	native	
Nama hispidum	BORAGINACEAE		native	
Nama hispidum var. spathulatum	BORAGINACEAE		native	
Nama pusillum	BORAGINACEAE		native	
Nama rothrockii	BORAGINACEAE		native	
Nama stenocarpum	BORAGINACEAE	MUD NAMA	native	
Narcissus pseudonarcissus	AMARYLLIDACEAE	DAFFODIL	naturalized	
Narcissus tazetta	AMARYLLIDACEAE	PAPER WHITE	naturalized	
Narthecium californicum	NARTHECIACEAE		native	
Nasturtium gambelii	BRASSICACEAE	GAMBEL'S WATER CRESS	native	
Nasturtium officinale	BRASSICACEAE	WATER CRESS	native	
Navarretia atractyloides	POLEMONIACEAE		native	
Navarretia breweri	POLEMONIACEAE		native	
Navarretia capillaris	POLEMONIACEAE		native	
Navarretia cotulifolia	POLEMONIACEAE	COTULA NAVARRETIA	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	SPREADING NAVARRETIA	native	
Navarretia gowenii	POLEMONIACEAE	LIME RIDGE NAVARRETIA	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 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'S 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 linearifolia	POLEMONIACEAE		native	
Navarretia linearifolia subsp. linearifolia	POLEMONIACEAE		native	
Navarretia linearifolia subsp. pinnatisecta	POLEMONIACEAE		native	
Navarretia mellita	POLEMONIACEAE		native	
Navarretia mitracarpa	POLEMONIACEAE		native	
Navarretia myersii	POLEMONIACEAE		native	
Navarretia myersii subsp. deminuta	POLEMONIACEAE	SMALL PINCUSHION NAVARRETIA	native	
Navarretia myersii subsp. myersii	POLEMONIACEAE	PINCUSHION NAVARRETIA	native	
Navarretia nigelliformis	POLEMONIACEAE		native	
Navarretia nigelliformis subsp. nigelliformis	POLEMONIACEAE	ADOBE NAVARRETIA	native	
Navarretia nigelliformis subsp. radians	POLEMONIACEAE	SHINING NAVARRETIA	native	
Navarretia ojaiensis	POLEMONIACEAE	OJAI NAVARRETIA	native	
Navarretia peninsularis	POLEMONIACEAE	BAJA NAVARRETIA	native	
Navarretia prolifera	POLEMONIACEAE		native	
Navarretia prolifera subsp. lutea	POLEMONIACEAE	YELLOW BUR NAVARRETIA	native	
Navarretia prolifera subsp. prolifera	POLEMONIACEAE		native	
Navarretia prostrata	POLEMONIACEAE	PROSTRATE VERNAL POOL NAVARRETIA	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. 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		native	
Nemacaulis denudata var. denudata	POLYGONACEAE	COAST WOOLLY-HEADS	native	
Nemacaulis denudata var. gracilis	POLYGONACEAE	SLENDER COTTONHEADS	native	
Nemacladus calcaratus	CAMPANULACEAE	CHIMNEY CREEK NEMACLADUS	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	ROBBINS' NEMACLADUS	native	
Nemacladus secundiflorus var. secundiflorus	CAMPANULACEAE	LARGE-FLOWERED NEMACLADUS	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	GREAT BASIN NEMOPHILA	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	
Neoholmgrenia andina	ONAGRACEAE		native	
Neostapfia colusana	POACEAE	COLUSA GRASS	native	
Nepeta cataria	LAMIACEAE	CATNIP	naturalized	
Nerium oleander	APOCYNACEAE	COMMON OLEANDER	naturalized	
Nestotus stenophyllus	ASTERACEAE		native	
Neviusia cliftonii	ROSACEAE	SHASTA SNOW-WREATH	native	
Nicolletia occidentalis	ASTERACEAE	HOLE-IN-THE-SAND PLANT	native	
Nicotiana acuminata	SOLANACEAE		naturalized	
Nicotiana acuminata var. multiflora	SOLANACEAE		naturalized	
Nicotiana attenuata	SOLANACEAE		native	
Nicotiana clevelandii	SOLANACEAE		native	
Nicotiana glauca	SOLANACEAE	TREE TOBACCO	naturalized	
Nicotiana obtusifolia	SOLANACEAE		native	
Nicotiana quadrivalvis	SOLANACEAE		native	
Nigella damascena	RANUNCULACEAE		naturalized	
Nitrophila mohavensis	AMARANTHACEAE	AMARGOSA NITROPHILA	native	
Nitrophila occidentalis	AMARANTHACEAE		native	
Noccaea fendleri	BRASSICACEAE		native	
Noccaea fendleri subsp. californica	BRASSICACEAE	KNEELAND PRAIRIE PENNYCRESS	native	
Noccaea fendleri subsp. glauca	BRASSICACEAE		native	
Nolina bigelovii	RUSCACEAE		native	
Nolina cismontana	RUSCACEAE	CHAPARRAL NOLINA	native	
Nolina interrata	RUSCACEAE	DEHESA NOLINA	native	
Nolina parryi	RUSCACEAE		native	
Nothocalais alpestris	ASTERACEAE	ALPINE LAKE FALSE-DANDELION	native	
Nothocalais troximoides	ASTERACEAE	SAGEBRUSH FALSE-DANDELION	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		naturalized	
Nuphar polysepala	NYMPHAEACEAE		native	
Nuttallanthus texanus	PLANTAGINACEAE	BLUE TOADFLAX	native	
Nymphaea mexicana	NYMPHAEACEAE	BANANA WATERLILY	naturalized	acceptance uncertain
Nymphaea odorata	NYMPHAEACEAE	WHITE WATERLILY	naturalized	
Nymphaea odorata subsp. odorata	NYMPHAEACEAE		naturalized	
Nymphoides peltata	MENYANTHACEAE	WATER FRINGE	naturalized	
Odontostomum hartwegii	TECOPHILAEACEAE		native	
Oemleria cerasiformis	ROSACEAE		native	
Oenanthe sarmentosa	APIACEAE		native	
Oenothera biennis	ONAGRACEAE	COMMON EVENING-PRIMROSE	naturalized	
Oenothera californica	ONAGRACEAE		native	
Oenothera californica subsp. avita	ONAGRACEAE		native	
Oenothera californica subsp. californica	ONAGRACEAE		native	
Oenothera californica subsp. eurekensis	ONAGRACEAE	EUREKA DUNES EVENING-PRIMROSE	native	
Oenothera cavernae	ONAGRACEAE	CAVE EVENING-PRIMROSE	native	
Oenothera cespitosa	ONAGRACEAE	FRAGRANT EVENING-PRIMROSE	native	
Oenothera cespitosa subsp. crinita	ONAGRACEAE	CESPITOSE EVENING-PRIMROSE	native	
Oenothera cespitosa subsp. marginata	ONAGRACEAE		native	
Oenothera curtiflora	ONAGRACEAE	VELVET WEED	naturalized	
Oenothera deltoides	ONAGRACEAE	BASKET EVENING-PRIMROSE	native	
Oenothera deltoides subsp. cognata	ONAGRACEAE		native	
Oenothera deltoides subsp. deltoides	ONAGRACEAE		native	
Oenothera deltoides subsp. howellii	ONAGRACEAE	ANTIOCH DUNES EVENING-PRIMROSE	native	
Oenothera deltoides subsp. piperi	ONAGRACEAE		native	
Oenothera elata	ONAGRACEAE		native	
Oenothera elata subsp. hirsutissima	ONAGRACEAE		native	
Oenothera elata subsp. hookeri	ONAGRACEAE		native	
Oenothera flava	ONAGRACEAE		native	
Oenothera glazioviana	ONAGRACEAE		naturalized	
Oenothera laciniata	ONAGRACEAE		naturalized	
Oenothera longissima	ONAGRACEAE	LONG-STEM EVENING-PRIMROSE	native	
Oenothera primiveris	ONAGRACEAE		native	
Oenothera primiveris subsp. bufonis	ONAGRACEAE		native	
Oenothera primiveris subsp. primiveris	ONAGRACEAE		native	
Oenothera pubescens	ONAGRACEAE		native	
Oenothera sinuosa	ONAGRACEAE	WAVY-LEAVED GAURA	naturalized	
Oenothera speciosa	ONAGRACEAE		naturalized	
Oenothera suffrutescens	ONAGRACEAE	LINDA TARDE	native	
Oenothera villosa	ONAGRACEAE		native	
Oenothera villosa subsp. strigosa	ONAGRACEAE		native	
Oenothera wolfii	ONAGRACEAE	WOLF'S EVENING-PRIMROSE	native	
Oenothera xenogaura	ONAGRACEAE		naturalized	
Oenothera xylocarpa	ONAGRACEAE		native	
Olea europaea	OLEACEAE		naturalized	
Oligomeris linifolia	RESEDACEAE		native	
Olneya tesota	FABACEAE	IRONWOOD	native	
Olsynium douglasii	IRIDACEAE		native	
Olsynium douglasii var. douglasii	IRIDACEAE	GRASS WIDOWS	native	
Oncosiphon piluliferum	ASTERACEAE	STINKNET	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	CACTACEAE		native	
Opuntia	CACTACEAE		native	
Opuntia basilaris	CACTACEAE		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		native	
Opuntia engelmannii var. engelmannii	CACTACEAE	ENGELMANN PRICKLY-PEAR	native	
Opuntia ficus-indica	CACTACEAE	MISSION PRICKLY-PEAR	naturalized	
Opuntia fragilis	CACTACEAE	BRITTLE PRICKLY-PEAR	native	
Opuntia littoralis	CACTACEAE		native	
Opuntia microdasys	CACTACEAE	BUNNY EARS	naturalized	
Opuntia oricola	CACTACEAE		native	
Opuntia phaeacantha	CACTACEAE	BROWN-SPINED PRICKLY-PEAR	native	
Opuntia polyacantha	CACTACEAE	STARVATION PRICKLY-PEAR	native	
Opuntia polyacantha var. erinacea	CACTACEAE	GRIZZLY BEAR PRICKLY-PEAR	native	
Opuntia polyacantha var. hystricina	CACTACEAE	PORCUPINE PRICKLY-PEAR	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	TALL ALPINE-ASTER	native	
Oreostemma peirsonii	ASTERACEAE		native	
Origanum	LAMIACEAE	HARDY SWEET MARJORAM	naturalized	
Origanum vulgare	LAMIACEAE		naturalized	
Origanum vulgare subsp. hirtum	LAMIACEAE	OREGANO	naturalized	
Ornithopus pinnatus	FABACEAE		naturalized	
Ornithopus sativus	FABACEAE	COMMON BIRDSFOOT	naturalized	
Ornithostaphylos oppositifolia	ERICACEAE	BAJA CALIFORNIA BIRDBUSH	native	
Orobanche bulbosa	OROBANCHACEAE		native	
Orobanche californica	OROBANCHACEAE		native	
Orobanche californica subsp. californica	OROBANCHACEAE		native	
Orobanche californica subsp. condensa	OROBANCHACEAE		native	
Orobanche californica subsp. feudgei	OROBANCHACEAE		native	
Orobanche californica subsp. grandis	OROBANCHACEAE		native	
Orobanche californica subsp. grayana	OROBANCHACEAE		native	
Orobanche californica subsp. jepsonii	OROBANCHACEAE		native	
Orobanche cooperi	OROBANCHACEAE		native	
Orobanche corymbosa	OROBANCHACEAE		native	
Orobanche fasciculata	OROBANCHACEAE	CLUSTERED BROOMRAPE	native	
Orobanche parishii	OROBANCHACEAE		native	
Orobanche parishii subsp. brachyloba	OROBANCHACEAE	SHORT-LOBED BROOMRAPE	native	
Orobanche parishii subsp. parishii	OROBANCHACEAE		native	
Orobanche pinorum	OROBANCHACEAE		native	
Orobanche ramosa	OROBANCHACEAE		naturalized	
Orobanche uniflora	OROBANCHACEAE	NAKED BROOMRAPE	native	
Orobanche valida	OROBANCHACEAE		native	
Orobanche valida subsp. howellii	OROBANCHACEAE	HOWELL'S BROOMRAPE	native	
Orobanche valida subsp. valida	OROBANCHACEAE	ROCK CREEK BROOMRAPE	native	
Orobanche vallicola	OROBANCHACEAE		native	
Orochaenactis thysanocarpha	ASTERACEAE		native	
Orogenia fusiformis	APIACEAE		native	
Orthilia secunda	ERICACEAE	ONE-SIDED WINTERGREEN	native	
Orthocarpus bracteosus	OROBANCHACEAE		native	
Orthocarpus cuspidatus	OROBANCHACEAE		native	
Orthocarpus cuspidatus subsp. copelandii	OROBANCHACEAE		native	
Orthocarpus cuspidatus subsp. cryptanthus	OROBANCHACEAE		native	
Orthocarpus cuspidatus subsp. cuspidatus	OROBANCHACEAE	SISKIYOU MOUNTAINS ORTHOCARPUS	native	
Orthocarpus imbricatus	OROBANCHACEAE		native	
Orthocarpus luteus	OROBANCHACEAE		native	
Orthocarpus pachystachyus	OROBANCHACEAE	SHASTA ORTHOCARPUS	native	
Oryctes nevadensis	SOLANACEAE	NEVADA ORYCTES	native	
Oryza sativa	POACEAE		naturalized	
Osmadenia tenella	ASTERACEAE	OSMADENIA	native	
Osmorhiza berteroi	APIACEAE		native	
Osmorhiza brachypoda	APIACEAE		native	
Osmorhiza depauperata	APIACEAE	BLUNT-FRUITED SWEET-CICELY	native	
Osmorhiza occidentalis	APIACEAE		native	
Osmorhiza purpurea	APIACEAE		native	
Oxalis articulata subsp. rubra	OXALIDACEAE	WINDOWBOX WOOD-SORREL	naturalized	
Oxalis californica	OXALIDACEAE	CALIFORNIA WOOD-SORREL	native	
Oxalis corniculata	OXALIDACEAE		naturalized	
Oxalis incarnata	OXALIDACEAE	CRIMSON WOOD-SORREL	naturalized	
Oxalis micrantha	OXALIDACEAE	DWARF WOOD-SORREL	naturalized	
Oxalis oregana	OXALIDACEAE	REDWOOD SORREL	native	
Oxalis pes-caprae	OXALIDACEAE	BERMUDA BUTTERCUP	naturalized	
Oxalis pilosa	OXALIDACEAE		native	
Oxalis suksdorfii	OXALIDACEAE	SUKSDORF'S WOOD-SORREL	native	
Oxalis trilliifolia	OXALIDACEAE		native	
Oxypolis occidentalis	APIACEAE		native	
Oxyria digyna	POLYGONACEAE		native	
Oxystylis lutea	CLEOMACEAE		native	
Oxytheca dendroidea	POLYGONACEAE		native	
Oxytheca dendroidea subsp. dendroidea	POLYGONACEAE	TREE-LIKE PUNCTUREBRACT	native	
Oxytheca perfoliata	POLYGONACEAE	ROUND-LEAF PUNCTUREBRACT	native	
Oxytheca watsonii	POLYGONACEAE	WATSON'S OXYTHECA	native	
Oxytropis borealis	FABACEAE	BOREAL LOCOWEED	native	
Oxytropis borealis var. australis	FABACEAE		native	
Oxytropis borealis var. viscida	FABACEAE	STICKY OXYTROPE	native	
Oxytropis deflexa	FABACEAE		native	
Oxytropis deflexa var. sericea	FABACEAE	BLUE PENDENT-POD OXYTROPE	native	
Oxytropis oreophila	FABACEAE		native	
Oxytropis oreophila var. oreophila	FABACEAE	ROCK-LOVING OXYTROPE	native	
Oxytropis parryi	FABACEAE	PARRY'S OXYTROPE	native	
Ozomelis diversifolia	SAXIFRAGACEAE		native	
Ozomelis trifida	SAXIFRAGACEAE		native	
Packera bernardina	ASTERACEAE	SAN BERNARDINO RAGWORT	native	
Packera bolanderi	ASTERACEAE		native	
Packera bolanderi var. bolanderi	ASTERACEAE	SEACOAST RAGWORT	native	
Packera breweri	ASTERACEAE	BREWER'S RAGWORT	native	
Packera cana	ASTERACEAE	WOOLLY GROUNDSEL	native	
Packera clevelandii	ASTERACEAE	CLEVELAND'S RAGWORT	native	
Packera eurycephala	ASTERACEAE		native	
Packera eurycephala var. eurycephala	ASTERACEAE	WIDEHEAD GROUNDSEL	native	
Packera eurycephala var. lewisrosei	ASTERACEAE	LEWIS ROSE'S RAGWORT	native	
Packera ganderi	ASTERACEAE	GANDER'S RAGWORT	native	
Packera greenei	ASTERACEAE	FLAME RAGWORT	native	
Packera hesperia	ASTERACEAE	WESTERN RAGWORT	native	
Packera indecora	ASTERACEAE	RAYLESS MOUNTAIN RAGWORT	native	
Packera ionophylla	ASTERACEAE	TEHACHAPI RAGWORT	native	
Packera layneae	ASTERACEAE	LAYNE'S RAGWORT	native	
Packera macounii	ASTERACEAE	SISKIYOU MOUNTAINS RAGWORT	native	
Packera multilobata	ASTERACEAE	LOBELEAF GROUNDSEL	native	
Packera pauciflora	ASTERACEAE	ALPINE GROUNDSEL	native	
Packera pseudaurea	ASTERACEAE		native	
Packera pseudaurea var. pseudaurea	ASTERACEAE	FALSE-GOLD GROUNDSEL	native	
Packera streptanthifolia	ASTERACEAE		native	
Packera streptanthifolia var. streptanthifolia	ASTERACEAE	ROCKY MOUNTAIN GROUNDSEL	native	
Packera subnuda	ASTERACEAE		native	
Packera subnuda var. subnuda	ASTERACEAE	CLEFTLEAF GROUNDSEL	native	
Packera werneriifolia	ASTERACEAE	HOARY GROUNDSEL	native	
Paeonia brownii	PAEONIACEAE		native	
Paeonia californica	PAEONIACEAE		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		native	
Panicum acuminatum var. fasciculatum	POACEAE	PACIFIC PANIC GRASS	native	
Panicum acuminatum var. lindheimeri	POACEAE		native	
Panicum acuminatum var. thermale	POACEAE	GEYSERS PANICUM	native	
Panicum antidotale	POACEAE	BLUE PANIC GRASS	naturalized	
Panicum capillare	POACEAE	WITCH GRASS	native	
Panicum dichotomiflorum	POACEAE		naturalized	
Panicum dichotomiflorum subsp. dichotomiflorum	POACEAE	FALL PANIC GRASS	naturalized	
Panicum hillmanii	POACEAE	HILLMAN'S PANIC GRASS	naturalized	
Panicum hirticaule	POACEAE		native	
Panicum hirticaule subsp. hirticaule	POACEAE	ROUGHSTALK WITCH GRASS	naturalized	
Panicum miliaceum	POACEAE		naturalized	
Panicum miliaceum subsp. miliaceum	POACEAE	BROOM CORN MILLET	naturalized	
Panicum oligosanthes	POACEAE		native	
Panicum oligosanthes var. scribnerianum	POACEAE	SCRIBNER'S PANIC GRASS	native	
Panicum rigidulum	POACEAE		naturalized	
Panicum rigidulum subsp. rigidulum	POACEAE	REDTOP PANICUM	naturalized	
Panicum urvilleanum	POACEAE	SILKY PANIC GRASS	native	
Papaver californicum	PAPAVERACEAE	FIRE POPPY	native	
Papaver heterophyllum	PAPAVERACEAE	WIND POPPY	native	
Papaver hybridum	PAPAVERACEAE	ROUGH POPPY	naturalized	
Papaver rhoeas	PAPAVERACEAE	CORN POPPY	naturalized	
Parapholis incurva	POACEAE		naturalized	
Parapholis strigosa	POACEAE		naturalized	
Parentucellia latifolia	OROBANCHACEAE		naturalized	
Parentucellia viscosa	OROBANCHACEAE		naturalized	
Parietaria hespera	URTICACEAE		native	
Parietaria hespera var. californica	URTICACEAE		native	
Parietaria hespera var. hespera	URTICACEAE		native	
Parietaria judaica	URTICACEAE		naturalized	
Parietaria pensylvanica	URTICACEAE		native	
Parkinsonia aculeata	FABACEAE	MEXICAN PALO VERDE	naturalized	
Parkinsonia florida	FABACEAE	BLUE PALO VERDE	native	
Parkinsonia microphylla	FABACEAE	LITTLE-LEAVED PALO VERDE	native	
Parnassia cirrata	PARNASSIACEAE		native	
Parnassia cirrata var. cirrata	PARNASSIACEAE	SAN BERNARDINO GRASS-OF-PARNASSUS	native	
Parnassia cirrata var. intermedia	PARNASSIACEAE	CASCADE GRASS-OF-PARNASSUS	native	
Parnassia fimbriata	PARNASSIACEAE		native	
Parnassia palustris	PARNASSIACEAE		native	
Parnassia parviflora	PARNASSIACEAE	SMALL-FLOWERED GRASS-OF-PARNASSUS	native	
Paronychia ahartii	CARYOPHYLLACEAE	AHART'S PARONYCHIA	native	
Paronychia echinulata	CARYOPHYLLACEAE		naturalized	
Paronychia echinulata var. echinulata	CARYOPHYLLACEAE		naturalized	
Paronychia franciscana	CARYOPHYLLACEAE		naturalized	
Parthenocissus inserta	VITACEAE	WOODBINE	naturalized	
Paspalum dilatatum	POACEAE	DALLIS GRASS	naturalized	
Paspalum distichum	POACEAE	KNOT GRASS	native	
Paspalum urvillei	POACEAE		naturalized	
Paspalum vaginatum	POACEAE	SEASHORE PASPALUM	naturalized	
Passiflora caerulea	PASSIFLORACEAE	BLUE PASSION FLOWER	naturalized	
Passiflora tarminiana	PASSIFLORACEAE	BANANA PASSION FRUIT	naturalized	
Pastinaca sativa	APIACEAE		naturalized	
Paxistima myrsinites	CELASTRACEAE	OREGON BOXWOOD	native	
Pectiantia breweri	SAXIFRAGACEAE		native	
Pectiantia ovalis	SAXIFRAGACEAE		native	
Pectiantia pentandra	SAXIFRAGACEAE		native	
Pectis papposa	ASTERACEAE		native	
Pectis papposa var. papposa	ASTERACEAE	CHINCH-WEED	native	
Pectocarya heterocarpa	BORAGINACEAE	MIXED-NUT PECTOCARYA	native	
Pectocarya linearis	BORAGINACEAE		native	
Pectocarya linearis subsp. ferocula	BORAGINACEAE	NARROW-TOOTHED PECTOCARYA	native	
Pectocarya penicillata	BORAGINACEAE	NORTHERN PECTOCARYA	native	
Pectocarya peninsularis	BORAGINACEAE	BAJA PECTOCARYA	native	
Pectocarya platycarpa	BORAGINACEAE	WIDE-TOOTHED PECTOCARYA	native	
Pectocarya pusilla	BORAGINACEAE	LITTLE PECTOCARYA	native	
Pectocarya recurvata	BORAGINACEAE	ARCHED-NUT PECTOCARYA	native	
Pectocarya setosa	BORAGINACEAE	ROUND-NUT PECTOCARYA	native	
Pedicularis attollens	OROBANCHACEAE	LITTLE ELEPHANT'S HEAD	native	
Pedicularis bracteosa	OROBANCHACEAE		native	
Pedicularis bracteosa var. flavida	OROBANCHACEAE	YELLOWISH LOUSEWORT	native	
Pedicularis centranthera	OROBANCHACEAE	GREAT BASIN LOUSEWORT	native	
Pedicularis contorta	OROBANCHACEAE	CURVED-BEAK LOUSEWORT	native	
Pedicularis crenulata	OROBANCHACEAE	SCALLOPED-LEAVED LOUSEWORT	native	
Pedicularis densiflora	OROBANCHACEAE	WARRIOR'S PLUME	native	
Pedicularis dudleyi	OROBANCHACEAE	DUDLEY'S LOUSEWORT	native	
Pedicularis groenlandica	OROBANCHACEAE	ELEPHANT'S HEAD	native	
Pedicularis howellii	OROBANCHACEAE	HOWELL'S LOUSEWORT	native	
Pedicularis racemosa	OROBANCHACEAE	LEAFY LOUSEWORT	native	
Pedicularis semibarbata	OROBANCHACEAE		native	
Pediomelum californicum	FABACEAE		native	
Pediomelum castoreum	FABACEAE	BEAVER DAM BREADROOT	native	
Peganum harmala	NITRARIACEAE	SYRIAN RUE	naturalized	
Pelargonium	GERANIACEAE	FISH GERANIUM	naturalized	
Pelargonium grossularioides	GERANIACEAE		naturalized	
Pelargonium inquinans	GERANIACEAE		naturalized	
Pelargonium panduriforme	GERANIACEAE	OAK-LEAVED GERANIUM	naturalized	
Pellaea andromedifolia	PTERIDACEAE	COFFEE FERN	native	
Pellaea brachyptera	PTERIDACEAE	SIERRA CLIFF-BREAK	native	
Pellaea breweri	PTERIDACEAE	BREWER'S CLIFF-BREAK	native	
Pellaea bridgesii	PTERIDACEAE	BRIDGES' CLIFF-BREAK	native	
Pellaea mucronata	PTERIDACEAE	BIRD'S-FOOT FERN	native	
Pellaea mucronata var. californica	PTERIDACEAE		native	
Pellaea mucronata var. mucronata	PTERIDACEAE		native	
Pellaea truncata	PTERIDACEAE	SPINY CLIFF-BRAKE	native	
Pennisetum ciliare	POACEAE	BUFFEL GRASS	naturalized	
Pennisetum clandestinum	POACEAE	KIKUYU GRASS	naturalized	
Pennisetum setaceum	POACEAE	CRIMSON FOUNTAIN GRASS	naturalized	
Pennisetum villosum	POACEAE	FEATHERTOP	naturalized	
Penstemon albomarginatus	PLANTAGINACEAE	WHITE-MARGINED BEARDTONGUE	native	
Penstemon anguineus	PLANTAGINACEAE		native	
Penstemon azureus	PLANTAGINACEAE		native	
Penstemon azureus var. angustissimus	PLANTAGINACEAE		native	
Penstemon azureus var. azureus	PLANTAGINACEAE		native	
Penstemon barnebyi	PLANTAGINACEAE	BARNEBY'S BEARDTONGUE	native	
Penstemon bicolor	PLANTAGINACEAE		native	
Penstemon caesius	PLANTAGINACEAE		native	
Penstemon calcareus	PLANTAGINACEAE	LIMESTONE BEARDTONGUE	native	
Penstemon californicus	PLANTAGINACEAE	CALIFORNIA BEARDTONGUE	native	
Penstemon centranthifolius	PLANTAGINACEAE	SCARLET BUGLER	native	
Penstemon cinicola	PLANTAGINACEAE	ASH BEARDTONGUE	native	
Penstemon clevelandii	PLANTAGINACEAE		native	
Penstemon clevelandii var. clevelandii	PLANTAGINACEAE		native	
Penstemon clevelandii var. connatus	PLANTAGINACEAE	SAN JACINTO BEARDTONGUE	native	
Penstemon clevelandii var. mohavensis	PLANTAGINACEAE		native	
Penstemon davidsonii	PLANTAGINACEAE		native	
Penstemon davidsonii var. davidsonii	PLANTAGINACEAE		native	
Penstemon deustus	PLANTAGINACEAE	HOT-ROCK PENSTEMON	native	
Penstemon deustus var. deustus	PLANTAGINACEAE		native	
Penstemon deustus var. pedicellatus	PLANTAGINACEAE		native	
Penstemon deustus var. suffrutescens	PLANTAGINACEAE		native	
Penstemon eatonii	PLANTAGINACEAE		native	
Penstemon eatonii var. eatonii	PLANTAGINACEAE		native	
Penstemon eatonii var. undosus	PLANTAGINACEAE		native	
Penstemon filiformis	PLANTAGINACEAE	THREAD-LEAVED BEARDTONGUE	native	
Penstemon floridus	PLANTAGINACEAE		native	
Penstemon floridus var. austinii	PLANTAGINACEAE		native	
Penstemon floridus var. floridus	PLANTAGINACEAE		native	
Penstemon fruticiformis	PLANTAGINACEAE		native	
Penstemon fruticiformis var. amargosae	PLANTAGINACEAE	AMARGOSA BEARDTONGUE	native	
Penstemon fruticiformis var. fruticiformis	PLANTAGINACEAE		native	
Penstemon gracilentus	PLANTAGINACEAE		native	
Penstemon grinnellii	PLANTAGINACEAE		native	
Penstemon grinnellii var. grinnellii	PLANTAGINACEAE		native	
Penstemon grinnellii var. scrophularioides	PLANTAGINACEAE		native	
Penstemon heterodoxus	PLANTAGINACEAE		native	
Penstemon heterodoxus var. cephalophorus	PLANTAGINACEAE		native	
Penstemon heterodoxus var. heterodoxus	PLANTAGINACEAE		native	
Penstemon heterodoxus var. shastensis	PLANTAGINACEAE	SHASTA BEARDTONGUE	native	
Penstemon heterophyllus	PLANTAGINACEAE		native	
Penstemon heterophyllus var. australis	PLANTAGINACEAE		native	
Penstemon heterophyllus var. heterophyllus	PLANTAGINACEAE		native	
Penstemon heterophyllus var. purdyi	PLANTAGINACEAE		native	
Penstemon humilis	PLANTAGINACEAE		native	
Penstemon humilis var. humilis	PLANTAGINACEAE		native	
Penstemon incertus	PLANTAGINACEAE		native	
Penstemon janishiae	PLANTAGINACEAE	JANISH'S BEARDTONGUE	native	
Penstemon labrosus	PLANTAGINACEAE		native	
Penstemon laetus	PLANTAGINACEAE		native	
Penstemon laetus var. laetus	PLANTAGINACEAE		native	
Penstemon laetus var. leptosepalus	PLANTAGINACEAE		native	
Penstemon laetus var. sagittatus	PLANTAGINACEAE		native	
Penstemon monoensis	PLANTAGINACEAE		native	
Penstemon neotericus	PLANTAGINACEAE	PLUMAS COUNTY BEARDTONGUE	native	
Penstemon newberryi	PLANTAGINACEAE		native	
Penstemon newberryi var. berryi	PLANTAGINACEAE		native	
Penstemon newberryi var. newberryi	PLANTAGINACEAE		native	
Penstemon newberryi var. sonomensis	PLANTAGINACEAE	SONOMA BEARDTONGUE	native	
Penstemon pahutensis	PLANTAGINACEAE	PAHUTE BEARDTONGUE	native	
Penstemon palmeri	PLANTAGINACEAE		native	
Penstemon palmeri var. palmeri	PLANTAGINACEAE		native	
Penstemon papillatus	PLANTAGINACEAE	INYO BEARDTONGUE	native	
Penstemon parvulus	PLANTAGINACEAE		native	
Penstemon patens	PLANTAGINACEAE		native	
Penstemon personatus	PLANTAGINACEAE	CLOSED-THROATED BEARDTONGUE	native	
Penstemon procerus	PLANTAGINACEAE		native	
Penstemon procerus var. brachyanthus	PLANTAGINACEAE		native	
Penstemon procerus var. formosus	PLANTAGINACEAE		native	
Penstemon pseudospectabilis	PLANTAGINACEAE		native	
Penstemon purpusii	PLANTAGINACEAE	SNOW MOUNTAIN BEARDTONGUE	native	
Penstemon rattanii	PLANTAGINACEAE		native	
Penstemon rattanii var. kleei	PLANTAGINACEAE	SANTA CRUZ MOUNTAINS BEARDTONGUE	native	
Penstemon rattanii var. rattanii	PLANTAGINACEAE		native	
Penstemon roezlii	PLANTAGINACEAE		native	
Penstemon rostriflorus	PLANTAGINACEAE		native	
Penstemon rupicola	PLANTAGINACEAE		native	
Penstemon rydbergii	PLANTAGINACEAE		native	
Penstemon rydbergii var. oreocharis	PLANTAGINACEAE		native	
Penstemon scapoides	PLANTAGINACEAE	PINYON BEARDTONGUE	native	
Penstemon speciosus	PLANTAGINACEAE		native	
Penstemon spectabilis	PLANTAGINACEAE		native	
Penstemon spectabilis var. spectabilis	PLANTAGINACEAE		native	
Penstemon spectabilis var. subviscosus	PLANTAGINACEAE		native	
Penstemon stephensii	PLANTAGINACEAE	STEPHENS' BEARDTONGUE	native	
Penstemon sudans	PLANTAGINACEAE	SUSANVILLE BEARDTONGUE	native	
Penstemon thompsoniae	PLANTAGINACEAE	THOMPSON'S BEARDTONGUE	native	
Penstemon thurberi	PLANTAGINACEAE	THURBER'S BEARDTONGUE	native	
Penstemon tracyi	PLANTAGINACEAE	TRACY'S BEARDTONGUE	native	
Penstemon utahensis	PLANTAGINACEAE	UTAH BEARDTONGUE	native	
Penstemon venustus	PLANTAGINACEAE		naturalized	
Pentachaeta alsinoides	ASTERACEAE		native	
Pentachaeta aurea	ASTERACEAE		native	
Pentachaeta aurea subsp. allenii	ASTERACEAE	ALLEN'S PENTACHAETA	native	
Pentachaeta aurea subsp. aurea	ASTERACEAE	GOLDEN-RAYED PENTACHAETA	native	
Pentachaeta bellidiflora	ASTERACEAE	WHITE-RAYED PENTACHAETA	native	
Pentachaeta exilis	ASTERACEAE		native	
Pentachaeta exilis subsp. aeolica	ASTERACEAE	SAN BENITO PENTACHAETA	native	
Pentachaeta exilis subsp. exilis	ASTERACEAE		native	
Pentachaeta fragilis	ASTERACEAE	FRAGILE PENTACHAETA	native	
Pentachaeta lyonii	ASTERACEAE	LYON'S PENTACHAETA	native	
Pentagramma pallida	PTERIDACEAE	SILVERBACK FERN	native	
Pentagramma triangularis	PTERIDACEAE	GOLDBACK FERN	native	
Pentagramma triangularis subsp. maxonii	PTERIDACEAE		native	
Pentagramma triangularis subsp. triangularis	PTERIDACEAE		native	
Pentagramma triangularis subsp. viscosa	PTERIDACEAE		native	
Peraphyllum ramosissimum	ROSACEAE		native	
Pericome caudata	ASTERACEAE		native	
Perideridia bacigalupii	APIACEAE	BACIGALUPI'S YAMPAH	native	
Perideridia bolanderi	APIACEAE		native	
Perideridia bolanderi subsp. bolanderi	APIACEAE		native	
Perideridia bolanderi subsp. involucrata	APIACEAE		native	
Perideridia californica	APIACEAE		native	
Perideridia gairdneri	APIACEAE		native	
Perideridia gairdneri subsp. borealis	APIACEAE		native	
Perideridia gairdneri subsp. gairdneri	APIACEAE	GAIRDNER'S YAMPAH	native	
Perideridia howellii	APIACEAE		native	
Perideridia kelloggii	APIACEAE		native	
Perideridia lemmonii	APIACEAE		native	
Perideridia leptocarpa	APIACEAE	NARROW-SEEDED YAMPAH	native	
Perideridia oregana	APIACEAE		native	
Perideridia parishii	APIACEAE		native	
Perideridia parishii subsp. latifolia	APIACEAE		native	
Perideridia parishii subsp. parishii	APIACEAE	PARISH'S YAMPAH	native	
Perideridia pringlei	APIACEAE	ADOBE YAMPAH	native	
Peritoma arborea	CLEOMACEAE	BLADDERPOD	native	
Peritoma arborea var. angustata	CLEOMACEAE		native	
Peritoma arborea var. arborea	CLEOMACEAE		native	
Peritoma arborea var. globosa	CLEOMACEAE		native	
Peritoma jonesii	CLEOMACEAE	JONES' BEE PLANT	native	
Peritoma lutea	CLEOMACEAE	YELLOW BEE PLANT	native	
Peritoma platycarpa	CLEOMACEAE	GOLDEN BEE PLANT	native	
Peritoma serrulata	CLEOMACEAE	ROCKY MOUNTAIN BEE PLANT	naturalized	
Perityle emoryi	ASTERACEAE	EMORY'S ROCK DAISY	native	
Perityle intricata	ASTERACEAE	DESERT ROCK DAISY	native	
Perityle inyoensis	ASTERACEAE	INYO ROCK DAISY	native	
Perityle megalocephala	ASTERACEAE		native	
Perityle megalocephala var. megalocephala	ASTERACEAE	NEVADA ROCK DAISY	native	
Perityle megalocephala var. oligophylla	ASTERACEAE	SMALL-LEAVED ROCK DAISY	native	
Perityle villosa	ASTERACEAE	HANAUPAH ROCK DAISY	native	
Persicaria amphibia	POLYGONACEAE	WATER SMARTWEED	native	
Persicaria capitata	POLYGONACEAE		naturalized	
Persicaria hydropiper	POLYGONACEAE	WATERPEPPER	naturalized	
Persicaria hydropiperoides	POLYGONACEAE	FALSE WATERPEPPER	native	
Persicaria lapathifolia	POLYGONACEAE	WILLOW WEED	native	
Persicaria maculosa	POLYGONACEAE	LADY'S THUMB	naturalized	
Persicaria pensylvanica	POLYGONACEAE	PINKWEED	naturalized	
Persicaria punctata	POLYGONACEAE		native	
Persicaria wallichii	POLYGONACEAE	HIMALAYAN KNOTWEED	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	WESTERN SWEET COLTSFOOT	native	
Peteria thompsoniae	FABACEAE	SPINE-NODED MILKVETCH	native	
Petradoria pumila	ASTERACEAE		native	
Petradoria pumila var. 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	
Petunia parviflora	SOLANACEAE		native	
Petunia violacea	SOLANACEAE		naturalized	acceptance uncertain
Peucephyllum schottii	ASTERACEAE		native	
Phacelia adenophora	BORAGINACEAE		native	
Phacelia affinis	BORAGINACEAE		native	
Phacelia anelsonii	BORAGINACEAE	AVEN NELSON'S PHACELIA	native	
Phacelia argentea	BORAGINACEAE	SANDDUNE PHACELIA	native	
Phacelia austromontana	BORAGINACEAE		native	
Phacelia barnebyana	BORAGINACEAE	BARNEBY'S PHACELIA	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	DESERT BLUEBELLS	native	
Phacelia campanularia var. campanularia	BORAGINACEAE		native	
Phacelia campanularia var. vasiformis	BORAGINACEAE		native	
Phacelia cicutaria	BORAGINACEAE		native	
Phacelia cicutaria var. cicutaria	BORAGINACEAE		native	
Phacelia cicutaria var. hispida	BORAGINACEAE		native	
Phacelia ciliata	BORAGINACEAE		native	
Phacelia coerulea	BORAGINACEAE	SKY-BLUE PHACELIA	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	MANY-FLOWERED 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	NAKED-STEMMED PHACELIA	native	
Phacelia hastata	BORAGINACEAE		native	
Phacelia hastata var. compacta	BORAGINACEAE		native	
Phacelia hastata var. hastata	BORAGINACEAE		native	
Phacelia heterophylla	BORAGINACEAE		native	
Phacelia heterophylla var. virgata	BORAGINACEAE		native	
Phacelia hubbyi	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 var. bernardina	BORAGINACEAE		native	
Phacelia imbricata var. imbricata	BORAGINACEAE		native	
Phacelia imbricata var. patula	BORAGINACEAE		native	
Phacelia insularis	BORAGINACEAE		native	
Phacelia insularis var. continentis	BORAGINACEAE	NORTH COAST PHACELIA	native	
Phacelia insularis var. insularis	BORAGINACEAE	NORTHERN CHANNEL ISLANDS PHACELIA	native	
Phacelia inundata	BORAGINACEAE	PLAYA PHACELIA	native	
Phacelia inyoensis	BORAGINACEAE	INYO PHACELIA	native	
Phacelia ivesiana	BORAGINACEAE		native	
Phacelia keckii	BORAGINACEAE	SANTIAGO PEAK PHACELIA	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 malvifolia var. loasifolia	BORAGINACEAE		native	
Phacelia malvifolia var. malvifolia	BORAGINACEAE		native	
Phacelia marcescens	BORAGINACEAE		native	
Phacelia minor	BORAGINACEAE	WILD CANTERBURY BELLS	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 var. nemoralis	BORAGINACEAE		native	
Phacelia nemoralis var. 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	PEIRSON'S PHACELIA	native	
Phacelia perityloides	BORAGINACEAE		native	
Phacelia perityloides var. jaegeri	BORAGINACEAE	JAEGER'S PHACELIA	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 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 STAR PHACELIA	native	
Phacelia 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	
Phacelia viscida var. albiflora	BORAGINACEAE		native	
Phacelia viscida var. viscida	BORAGINACEAE		native	
Phalacroseris bolanderi	ASTERACEAE	BOLANDER'S MOCK DANDELION	native	
Phalaris angusta	POACEAE	TIMOTHY CANARY GRASS	native	
Phalaris aquatica	POACEAE	HARDING GRASS	naturalized	
Phalaris arundinacea	POACEAE	REED CANARY GRASS	native	
Phalaris brachystachys	POACEAE	SHORT-SPIKED CANARY GRASS	naturalized	
Phalaris californica	POACEAE	CALIFORNIA CANARY GRASS	native	
Phalaris canariensis	POACEAE	CANARY GRASS	naturalized	
Phalaris caroliniana	POACEAE	CAROLINA CANARY GRASS	naturalized	
Phalaris coerulescens	POACEAE	SUNOL GRASS	naturalized	
Phalaris lemmonii	POACEAE	LEMMON'S CANARY GRASS	native	
Phalaris minor	POACEAE	LITTLE-SEEDED CANARY GRASS	naturalized	
Phalaris paradoxa	POACEAE	HOOD CANARY GRASS	naturalized	
Phaseolus filiformis	FABACEAE	SLENDER-STEM BEAN	native	
Philadelphus lewisii	HYDRANGEACEAE	WILD MOCK ORANGE	native	
Philadelphus microphyllus	HYDRANGEACEAE	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 condensata	POLEMONIACEAE		native	
Phlox diffusa	POLEMONIACEAE		native	
Phlox dispersa	POLEMONIACEAE	HIGH SIERRA PHLOX	native	
Phlox dolichantha	POLEMONIACEAE	BIG BEAR VALLEY PHLOX	native	
Phlox douglasii	POLEMONIACEAE		native	
Phlox hirsuta	POLEMONIACEAE	YREKA PHLOX	native	
Phlox hoodii	POLEMONIACEAE		native	
Phlox hoodii subsp. canescens	POLEMONIACEAE		native	
Phlox muscoides	POLEMONIACEAE	SQUARESTEM PHLOX	native	
Phlox pulvinata	POLEMONIACEAE		native	
Phlox speciosa	POLEMONIACEAE		native	
Phlox stansburyi	POLEMONIACEAE		native	
Phlox stansburyi subsp. stansburyi	POLEMONIACEAE		native	
Phlox stansburyi subsp. superba	POLEMONIACEAE		native	
Phlox stansburyi var. brevifolia	POLEMONIACEAE		native	
Phoenicaulis cheiranthoides	BRASSICACEAE		native	
Phoenix canariensis	ARECACEAE	CANARY ISLAND 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	INCENSE CEDAR MISTLETOE	native	
Phoradendron leucarpum	VISCACEAE		native	
Phoradendron leucarpum subsp. macrophyllum	VISCACEAE		native	
Phoradendron leucarpum subsp. tomentosum	VISCACEAE		native	
Phragmites australis	POACEAE	COMMON REED	native	
Phyla lanceolata	VERBENACEAE		native	
Phyla nodiflora	VERBENACEAE		native	
Phyllodoce breweri	ERICACEAE		native	
Phyllodoce empetriformis	ERICACEAE		native	
Phyllospadix scouleri	ZOSTERACEAE		native	
Phyllospadix torreyi	ZOSTERACEAE		native	
Physalis acutifolia	SOLANACEAE		native	
Physalis crassifolia	SOLANACEAE		native	
Physalis hederifolia	SOLANACEAE		native	
Physalis hederifolia var. fendleri	SOLANACEAE		native	
Physalis hederifolia var. palmeri	SOLANACEAE		native	
Physalis lancifolia	SOLANACEAE		naturalized	
Physalis lobata	SOLANACEAE	LOBED GROUND-CHERRY	native	
Physalis philadelphica	SOLANACEAE	TOMATILLO	naturalized	
Physalis pubescens	SOLANACEAE		naturalized	
Physalis pubescens var. grisea	SOLANACEAE		naturalized	
Physalis pubescens var. integrifolia	SOLANACEAE		naturalized	
Physaria chambersii	BRASSICACEAE	CHAMBERS' PHYSARIA	native	
Physaria cordiformis	BRASSICACEAE		native	
Physaria kingii	BRASSICACEAE		native	
Physaria kingii subsp. bernardina	BRASSICACEAE	SAN BERNARDINO MOUNTAINS BLADDERPOD	native	
Physaria kingii subsp. kingii	BRASSICACEAE		native	
Physaria kingii subsp. latifolia	BRASSICACEAE		native	
Physaria ludoviciana	BRASSICACEAE	SILVER BLADDERPOD	native	
Physaria occidentalis	BRASSICACEAE		native	
Physaria occidentalis subsp. occidentalis	BRASSICACEAE		native	
Physaria tenella	BRASSICACEAE		native	
Physocarpus alternans	ROSACEAE	NEVADA NINEBARK	native	
Physocarpus capitatus	ROSACEAE		native	
Phytolacca americana	PHYTOLACCACEAE		naturalized	
Phytolacca americana var. americana	PHYTOLACCACEAE	POKEWEED	naturalized	
Phytolacca icosandra	PHYTOLACCACEAE	TROPICAL POKEWEED	naturalized	
Picea breweriana	PINACEAE	BREWER SPRUCE	native	
Picea engelmannii	PINACEAE	ENGELMANN SPRUCE	native	
Picea sitchensis	PINACEAE	SITKA SPRUCE	native	
Pickeringia montana	FABACEAE	CHAPARRAL PEA	native	
Pickeringia montana var. montana	FABACEAE		native	
Pickeringia montana var. tomentosa	FABACEAE	WOOLLY CHAPARRAL PEA	native	
Pilostyles thurberi	APODANTHACEAE	THURBER'S PILOSTYLES	native	
Pilularia americana	MARSILEACEAE		native	
Pinguicula macroceras	LENTIBULARIACEAE	HORNED BUTTERWORT	native	
Pinus albicaulis	PINACEAE	WHITEBARK PINE	native	
Pinus attenuata	PINACEAE	KNOBCONE PINE	native	
Pinus balfouriana	PINACEAE	FOXTAIL PINE	native	
Pinus balfouriana subsp. austrina	PINACEAE		native	
Pinus balfouriana subsp. balfouriana	PINACEAE		native	
Pinus contorta	PINACEAE		native	
Pinus contorta subsp. bolanderi	PINACEAE	BOLANDER'S BEACH 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	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	WESTERN YELLOW PINE	native	
Pinus ponderosa var. pacifica	PINACEAE	PACIFIC PONDEROSA PINE	native	
Pinus ponderosa var. ponderosa	PINACEAE	NORTH PLATEAU PONDEROSA PINE	native	
Pinus quadrifolia	PINACEAE	PARRY PINYON PINE	native	
Pinus radiata	PINACEAE	MONTEREY PINE	native	
Pinus sabiniana	PINACEAE	FOOTHILL PINE	native	
Pinus torreyana	PINACEAE		native	
Pinus torreyana subsp. insularis	PINACEAE	SANTA ROSA ISLAND TORREY PINE	native	
Pinus torreyana subsp. torreyana	PINACEAE	TORREY PINE	native	
Piperia candida	ORCHIDACEAE	WHITE-FLOWERED REIN-ORCHID	native	
Piperia colemanii	ORCHIDACEAE	COLEMAN'S REIN-ORCHID	native	
Piperia cooperi	ORCHIDACEAE	CHAPARRAL REIN-ORCHID	native	
Piperia elegans	ORCHIDACEAE		native	
Piperia elegans subsp. decurtata	ORCHIDACEAE	POINT REYES REIN-ORCHID	native	
Piperia elegans subsp. elegans	ORCHIDACEAE	ELEGANT PIPERIA	native	
Piperia elongata	ORCHIDACEAE	WOOD REIN-ORCHID	native	
Piperia leptopetala	ORCHIDACEAE	NARROW-PETALED REIN-ORCHID	native	
Piperia michaelii	ORCHIDACEAE	MICHAEL'S REIN-ORCHID	native	
Piperia transversa	ORCHIDACEAE	FLAT SPURRED PIPERIA	native	
Piperia unalascensis	ORCHIDACEAE	SLENDER-SPIRE ORCHID	native	
Piperia yadonii	ORCHIDACEAE	YADON'S REIN-ORCHID	native	
Pistacia atlantica	ANACARDIACEAE		naturalized	
Pisum sativum	FABACEAE	COMMON PEA	naturalized	
Pittosporum crassifolium	PITTOSPORACEAE		naturalized	
Pittosporum tobira	PITTOSPORACEAE	MOCK ORANGE	naturalized	
Pittosporum undulatum	PITTOSPORACEAE	MOCK ORANGE	naturalized	
Pityopus californicus	ERICACEAE	CALIFORNIA PINEFOOT	native	
Plagiobothrys acanthocarpus	BORAGINACEAE	ADOBE POPCORNFLOWER	native	
Plagiobothrys arizonicus	BORAGINACEAE	ARIZONA POPCORNFLOWER	native	
Plagiobothrys austiniae	BORAGINACEAE	AUSTIN'S SPINY-NUT POPCORNFLOWER	native	
Plagiobothrys bracteatus	BORAGINACEAE	BRACTED POPCORNFLOWER	native	
Plagiobothrys canescens	BORAGINACEAE		native	
Plagiobothrys canescens var. canescens	BORAGINACEAE	VALLEY POPCORNFLOWER	native	
Plagiobothrys canescens var. catalinensis	BORAGINACEAE	SANTA CATALINA POPCORNFLOWER	native	
Plagiobothrys chorisianus	BORAGINACEAE	ARTIST'S POPCORNFLOWER	native	
Plagiobothrys chorisianus var. chorisianus	BORAGINACEAE	CHORIS' POPCORNFLOWER	native	
Plagiobothrys chorisianus var. hickmanii	BORAGINACEAE	HICKMAN'S POPCORNFLOWER	native	
Plagiobothrys cognatus	BORAGINACEAE	COGNATE POPCORNFLOWER	native	
Plagiobothrys collinus	BORAGINACEAE		native	
Plagiobothrys collinus var. californicus	BORAGINACEAE	CALIFORNIA POPCORNFLOWER	native	
Plagiobothrys collinus var. fulvescens	BORAGINACEAE	ROUGH-STEMMED POPCORNFLOWER	native	
Plagiobothrys collinus var. gracilis	BORAGINACEAE	SAN DIEGO POPCORNFLOWER	native	
Plagiobothrys collinus var. ursinus	BORAGINACEAE	BEAR VALLEY POPCORNFLOWER	native	
Plagiobothrys cusickii	BORAGINACEAE	CUSICK'S POPCORNFLOWER	native	
Plagiobothrys diffusus	BORAGINACEAE	SAN FRANCISCO POPCORNFLOWER	native	
Plagiobothrys distantiflorus	BORAGINACEAE	MADERA POPCORNFLOWER	native	
Plagiobothrys fulvus	BORAGINACEAE		native	
Plagiobothrys fulvus var. campestris	BORAGINACEAE	FIELD POPCORNFLOWER	native	
Plagiobothrys glyptocarpus	BORAGINACEAE	SCULPTURED-NUT POPCORNFLOWER	native	
Plagiobothrys glyptocarpus var. glyptocarpus	BORAGINACEAE		native	
Plagiobothrys glyptocarpus var. modestus	BORAGINACEAE	CEDAR RIDGE POPCORNFLOWER	native	
Plagiobothrys greenei	BORAGINACEAE	GREENE'S SPINY-NUT POPCORNFLOWER	native	
Plagiobothrys hispidulus	BORAGINACEAE	HARSH POPCORNFLOWER	native	
Plagiobothrys hispidus	BORAGINACEAE	BRISTLY POPCORNFLOWER	native	
Plagiobothrys humistratus	BORAGINACEAE	LOW POPCORNFLOWER	native	
Plagiobothrys hystriculus	BORAGINACEAE	BEARDED POPCORNFLOWER	native	
Plagiobothrys infectivus	BORAGINACEAE	DYE POPCORNFLOWER	native	
Plagiobothrys jonesii	BORAGINACEAE	MOJAVE POPCORNFLOWER	native	
Plagiobothrys kingii	BORAGINACEAE	GREAT BASIN POPCORNFLOWER	native	
Plagiobothrys kingii var. harknessii	BORAGINACEAE	NORTHERN GREAT BASIN POPCORNFLOWER	native	
Plagiobothrys kingii var. kingii	BORAGINACEAE	SOUTHERN GREAT BASIN POPCORNFLOWER	native	
Plagiobothrys leptocladus	BORAGINACEAE	ALKALI PLAGIOBOTHRYS	native	
Plagiobothrys mollis	BORAGINACEAE	SOFT POPCORNFLOWER	native	
Plagiobothrys mollis var. mollis	BORAGINACEAE		native	
Plagiobothrys nitens	BORAGINACEAE	SHINY-NUTLET POPCORNFLOWER	native	
Plagiobothrys nothofulvus	BORAGINACEAE	FOOTHILL SNOWDROPS	native	
Plagiobothrys parishii	BORAGINACEAE	PARISH'S POPCORNFLOWER	native	
Plagiobothrys reticulatus	BORAGINACEAE	TRACY'S POPCORNFLOWER	native	
Plagiobothrys reticulatus var. reticulatus	BORAGINACEAE		native	
Plagiobothrys reticulatus var. rossianorum	BORAGINACEAE	FORT ROSS POPCORNFLOWER	native	
Plagiobothrys salsus	BORAGINACEAE	DESERT POPCORNFLOWER	native	
Plagiobothrys scriptus	BORAGINACEAE	SCRIDGEE'S POPCORNFLOWER	native	
Plagiobothrys shastensis	BORAGINACEAE	SHASTA POPCORNFLOWER	native	
Plagiobothrys stipitatus	BORAGINACEAE	GREAT VALLEY POPCORNFLOWER	native	
Plagiobothrys stipitatus var. micranthus	BORAGINACEAE		native	
Plagiobothrys stipitatus var. stipitatus	BORAGINACEAE	SHOWY GREAT VALLEY POPCORNFLOWER	native	
Plagiobothrys strictus	BORAGINACEAE	CALISTOGA POPCORNFLOWER	native	
Plagiobothrys tenellus	BORAGINACEAE	PACIFIC POPCORNFLOWER	native	
Plagiobothrys tener	BORAGINACEAE	SLENDER POPCORNFLOWER	native	
Plagiobothrys tener var. subglaber	BORAGINACEAE	SERPENTINE POPCORNFLOWER	native	
Plagiobothrys tener var. tener	BORAGINACEAE		native	
Plagiobothrys torreyi	BORAGINACEAE	HIGH SIERRA POPCORNFLOWER	native	
Plagiobothrys torreyi var. diffusus	BORAGINACEAE		native	
Plagiobothrys torreyi var. perplexans	BORAGINACEAE	CHAPARRAL POPCORNFLOWER	native	
Plagiobothrys torreyi var. torreyi	BORAGINACEAE	YOSEMITE POPCORNFLOWER	native	
Plagiobothrys trachycarpus	BORAGINACEAE	ROUGH-NUTLET POPCORNFLOWER	native	
Plagiobothrys uncinatus	BORAGINACEAE	HOOKED POPCORNFLOWER	native	
Plagiobothrys undulatus	BORAGINACEAE	WAVY-STEMMED POPCORNFLOWER	native	
Plagiobothrys verrucosus	BORAGINACEAE	FORGET-ME-NOT POPCORNFLOWER	native	
Planodes virginicum	BRASSICACEAE		native	
Plantago arenaria	PLANTAGINACEAE		naturalized	
Plantago aristata	PLANTAGINACEAE		naturalized	
Plantago coronopus	PLANTAGINACEAE		naturalized	
Plantago elongata	PLANTAGINACEAE		native	
Plantago erecta	PLANTAGINACEAE		native	
Plantago eriopoda	PLANTAGINACEAE		native	
Plantago lanceolata	PLANTAGINACEAE	ENGLISH PLANTAIN	naturalized	
Plantago major	PLANTAGINACEAE	COMMON PLANTAIN	naturalized	
Plantago maritima	PLANTAGINACEAE		native	
Plantago ovata	PLANTAGINACEAE		native	
Plantago ovata var. fastigiata	PLANTAGINACEAE		native	
Plantago ovata var. insularis	PLANTAGINACEAE		native	
Plantago patagonica	PLANTAGINACEAE		native	
Plantago pusilla	PLANTAGINACEAE		naturalized	
Plantago rhodosperma	PLANTAGINACEAE		native	
Plantago subnuda	PLANTAGINACEAE		native	
Plantago truncata	PLANTAGINACEAE		naturalized	
Plantago truncata subsp. firma	PLANTAGINACEAE		naturalized	
Plantago virginica	PLANTAGINACEAE		naturalized	
Platanthera dilatata	ORCHIDACEAE		native	
Platanthera dilatata var. leucostachys	ORCHIDACEAE	WHITE-FLOWERED BOG-ORCHID	native	
Platanthera sparsiflora	ORCHIDACEAE	SPARSE-FLOWERED BOG-ORCHID	native	
Platanthera stricta	ORCHIDACEAE	SLENDER BOG-ORCHID	native	
Platanthera tescamnis	ORCHIDACEAE		native	
Platanthera yosemitensis	ORCHIDACEAE	YOSEMITE BOG-ORCHID	native	
Platanus racemosa	PLATANACEAE	WESTERN SYCAMORE	native	
Platystemon californicus	PAPAVERACEAE	CREAM CUPS	native	
Plecostachys serpyllifolia	ASTERACEAE	PETITE-LICORICE	naturalized	
Plectritis ciliosa	VALERIANACEAE		native	
Plectritis congesta	VALERIANACEAE		native	
Plectritis congesta subsp. brachystemon	VALERIANACEAE		native	
Plectritis congesta subsp. congesta	VALERIANACEAE	SEA BLUSH	native	
Plectritis macrocera	VALERIANACEAE		native	
Pleiacanthus spinosus	ASTERACEAE	THORNY SKELETONWEED	native	
Pleuricospora fimbriolata	ERICACEAE		native	
Pleurocoronis pluriseta	ASTERACEAE		native	
Pleuropogon californicus	POACEAE		native	
Pleuropogon californicus var. californicus	POACEAE		native	
Pleuropogon californicus var. davyi	POACEAE	DAVY'S SEMAPHORE GRASS	native	
Pleuropogon hooverianus	POACEAE	NORTH COAST SEMAPHORE GRASS	native	
Pleuropogon refractus	POACEAE	NODDING SEMAPHORE GRASS	native	
Pluchea odorata	ASTERACEAE		native	
Pluchea odorata var. odorata	ASTERACEAE	SALTMARSH-FLEABANE	native	
Pluchea sericea	ASTERACEAE	ARROW-WEED	native	
Poa abbreviata	POACEAE	DWARF BLUE GRASS	native	
Poa abbreviata subsp. marshii	POACEAE	MARSH'S BLUE GRASS	native	
Poa abbreviata subsp. pattersonii	POACEAE	PATTERSON'S BLUE GRASS	native	
Poa annua	POACEAE	ANNUAL BLUE GRASS	naturalized	
Poa atropurpurea	POACEAE	SAN BERNARDINO BLUE GRASS	native	
Poa bigelovii	POACEAE		native	
Poa bolanderi	POACEAE		native	
Poa bulbosa	POACEAE		naturalized	
Poa bulbosa subsp. bulbosa	POACEAE		naturalized	
Poa bulbosa subsp. vivipara	POACEAE		naturalized	
Poa compressa	POACEAE	CANADIAN BLUE GRASS	naturalized	
Poa confinis	POACEAE	BEACH BLUE GRASS	native	
Poa cusickii	POACEAE		native	
Poa cusickii subsp. cusickii	POACEAE		native	
Poa cusickii subsp. epilis	POACEAE	SKYLINE BLUE GRASS	native	
Poa cusickii subsp. pallida	POACEAE		native	
Poa cusickii subsp. purpurascens	POACEAE		native	
Poa diaboli	POACEAE	DIABLO CANYON BLUE GRASS	native	
Poa douglasii	POACEAE	SAND DUNE BLUE GRASS	native	
Poa fendleriana	POACEAE		native	
Poa fendleriana subsp. fendleriana	POACEAE	MUTTON GRASS	native	
Poa fendleriana subsp. longiligula	POACEAE	LONG-TONGUE MUTTON GRASS	native	
Poa glauca	POACEAE		native	
Poa glauca subsp. rupicola	POACEAE	TIMBERLINE BLUE GRASS	native	
Poa howellii	POACEAE		native	
Poa infirma	POACEAE	WEAK BLUE GRASS	naturalized	
Poa keckii	POACEAE		native	
Poa kelloggii	POACEAE	KELLOGG'S BLUE GRASS	native	
Poa leptocoma	POACEAE		native	
Poa leptocoma subsp. leptocoma	POACEAE	BOG BLUE GRASS	native	
Poa lettermanii	POACEAE	LETTERMAN'S BLUE GRASS	native	
Poa macrantha	POACEAE	SEASHORE BLUE GRASS	native	
Poa napensis	POACEAE	NAPA BLUE GRASS	native	
Poa nemoralis	POACEAE	WOOD BLUE GRASS	naturalized	
Poa palustris	POACEAE	FOWL BLUE GRASS	naturalized	
Poa piperi	POACEAE	PIPER'S BLUE GRASS	native	
Poa pratensis	POACEAE		naturalized	
Poa pratensis subsp. pratensis	POACEAE	KENTUCKY BLUE GRASS	naturalized	
Poa pringlei	POACEAE		native	
Poa rhizomata	POACEAE	TIMBER BLUE GRASS	native	
Poa secunda	POACEAE	NEVADA BLUE GRASS	native	
Poa secunda subsp. juncifolia	POACEAE		native	
Poa secunda subsp. secunda	POACEAE	ONE-SIDED BLUE GRASS	native	
Poa sierrae	POACEAE	SIERRA BLUE GRASS	native	
Poa stebbinsii	POACEAE		native	
Poa tenerrima	POACEAE	DELICATE BLUE GRASS	native	
Poa trivialis	POACEAE	ROUGH BLUE GRASS	naturalized	
Poa unilateralis	POACEAE		native	
Poa unilateralis subsp. unilateralis	POACEAE	SAN FRANCISCO BLUE GRASS	native	
Poa wheeleri	POACEAE		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	DOUGLAS' BEARDSTYLE	native	
Pogogyne floribunda	LAMIACEAE	PROFUSE-FLOWERED POGOGYNE	native	
Pogogyne nudiuscula	LAMIACEAE	OTAY MESA MINT	native	
Pogogyne serpylloides	LAMIACEAE	THYMELEAF BEARDSTYLE	native	
Pogogyne zizyphoroides	LAMIACEAE	SACRAMENTO BEARDSTYLE	native	
Polanisia dodecandra	CLEOMACEAE		native	
Polanisia dodecandra subsp. trachysperma	CLEOMACEAE	WESTERN CLAMMYWEED	native	
Polemonium californicum	POLEMONIACEAE		native	
Polemonium carneum	POLEMONIACEAE	OREGON POLEMONIUM	native	
Polemonium chartaceum	POLEMONIACEAE	MASON'S SKY PILOT	native	
Polemonium eximium	POLEMONIACEAE		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	FROSTED MINT	native	
Polycarpon depressum	CARYOPHYLLACEAE		native	
Polycarpon tetraphyllum	CARYOPHYLLACEAE		naturalized	
Polycarpon tetraphyllum var. tetraphyllum	CARYOPHYLLACEAE	FOUR-LEAVED ALLSEED	naturalized	
Polyctenium fremontii	BRASSICACEAE		native	
Polygala acanthoclada	POLYGALACEAE	THORNY MILKWORT	native	
Polygala californica	POLYGALACEAE	CALIFORNIA MILKWORT	native	
Polygala cornuta	POLYGALACEAE		native	
Polygala cornuta var. cornuta	POLYGALACEAE	SIERRA MILKWORT	native	
Polygala cornuta var. fishiae	POLYGALACEAE	FISH'S MILKWORT	native	
Polygala heterorhyncha	POLYGALACEAE	NOTCH-BEAKED MILKWORT	native	
Polygala intermontana	POLYGALACEAE	INTERMOUNTAIN MILKWORT	native	
Polygala subspinosa	POLYGALACEAE	SPINY MILKWORT	native	
Polygonum argyrocoleon	POLYGONACEAE	PERSIAN KNOTWEED	naturalized	
Polygonum austiniae	POLYGONACEAE	MRS. AUSTIN'S KNOTWEED	native	
Polygonum aviculare	POLYGONACEAE	KNOTGRASS	naturalized	
Polygonum aviculare subsp. aviculare	POLYGONACEAE		naturalized	
Polygonum aviculare subsp. depressum	POLYGONACEAE		naturalized	
Polygonum bidwelliae	POLYGONACEAE	BIDWELL'S KNOTWEED	native	
Polygonum bolanderi	POLYGONACEAE	BOLANDER'S KNOTWEED	native	
Polygonum californicum	POLYGONACEAE		native	
Polygonum douglasii	POLYGONACEAE	DOUGLAS' KNOTWEED	native	
Polygonum fowleri	POLYGONACEAE		native	
Polygonum fowleri subsp. fowleri	POLYGONACEAE		native	
Polygonum hickmanii	POLYGONACEAE	SCOTTS VALLEY POLYGONUM	native	
Polygonum majus	POLYGONACEAE	WIRY KNOTWEED	native	
Polygonum marinense	POLYGONACEAE	MARIN KNOTWEED	native	
Polygonum minimum	POLYGONACEAE		native	
Polygonum paronychia	POLYGONACEAE		native	
Polygonum parryi	POLYGONACEAE	PRICKLY KNOTWEED	native	
Polygonum polygaloides	POLYGONACEAE	POLYGALA KNOTWEED	native	
Polygonum polygaloides subsp. confertiflorum	POLYGONACEAE		native	
Polygonum polygaloides subsp. esotericum	POLYGONACEAE	MODOC COUNTY KNOTWEED	native	
Polygonum polygaloides subsp. kelloggii	POLYGONACEAE		native	
Polygonum ramosissimum	POLYGONACEAE	BUSHY KNOTWEED	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		native	
Polygonum spergulariiforme	POLYGONACEAE		native	
Polypodium californicum	POLYPODIACEAE	CALIFORNIA POLYPODY	native	
Polypodium calirhiza	POLYPODIACEAE		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	
Polypogon interruptus	POACEAE	DITCH BEARD GRASS	naturalized	
Polypogon maritimus	POACEAE	MEDITERRANEAN BEARD GRASS	naturalized	
Polypogon monspeliensis	POACEAE	RABBITFOOT GRASS	naturalized	
Polypogon viridis	POACEAE	WATER BEARD GRASS	naturalized	
Polystichum californicum	DRYOPTERIDACEAE		native	
Polystichum dudleyi	DRYOPTERIDACEAE		native	
Polystichum imbricans	DRYOPTERIDACEAE		native	
Polystichum imbricans subsp. curtum	DRYOPTERIDACEAE		native	
Polystichum imbricans subsp. imbricans	DRYOPTERIDACEAE		native	
Polystichum kruckebergii	DRYOPTERIDACEAE	KRUCKEBERG'S SWORD FERN	native	
Polystichum lemmonii	DRYOPTERIDACEAE		native	
Polystichum lonchitis	DRYOPTERIDACEAE	HOLLY FERN	native	
Polystichum munitum	DRYOPTERIDACEAE	WESTERN SWORD FERN	native	
Polystichum scopulinum	DRYOPTERIDACEAE		native	
Populus alba	SALICACEAE	WHITE POPLAR	naturalized	
Populus angustifolia	SALICACEAE	NARROW-LEAVED COTTONWOOD	native	
Populus fremontii	SALICACEAE		native	
Populus fremontii subsp. fremontii	SALICACEAE	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	
Populus trichocarpa	SALICACEAE	BLACK COTTONWOOD	native	
Porophyllum gracile	ASTERACEAE	SLENDER PORELEAF	native	
Porterella carnosula	CAMPANULACEAE		native	
Portulaca halimoides	PORTULACACEAE	DESERT PORTULACA	native	
Portulaca oleracea	PORTULACACEAE	PURSLANE	naturalized	
Potamogeton alpinus	POTAMOGETONACEAE		native	
Potamogeton amplifolius	POTAMOGETONACEAE	BROAD-LEAVED PONDWEED	native	
Potamogeton berchtoldii	POTAMOGETONACEAE		native	
Potamogeton crispus	POTAMOGETONACEAE	CRISP-LEAVED PONDWEED	naturalized	
Potamogeton diversifolius	POTAMOGETONACEAE	DIVERSE-LEAVED PONDWEED	native	
Potamogeton epihydrus	POTAMOGETONACEAE	NUTTALL'S RIBBON-LEAVED PONDWEED	native	
Potamogeton foliosus	POTAMOGETONACEAE	LEAFY PONDWEED	native	
Potamogeton foliosus subsp. fibrillosus	POTAMOGETONACEAE	FIBROUS PONDWEED	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	ENGLISH CINQUEFOIL	naturalized	
Potentilla anserina	ROSACEAE		native	
Potentilla anserina subsp. anserina	ROSACEAE	COMMON SILVERWEED	native	
Potentilla anserina subsp. pacifica	ROSACEAE	PACIFIC SILVERWEED	native	
Potentilla basaltica	ROSACEAE	BLACK ROCK POTENTILLA	native	
Potentilla biennis	ROSACEAE	GREENE'S CINQUEFOIL	native	
Potentilla breweri	ROSACEAE	BREWER'S CINQUEFOIL	native	
Potentilla bruceae	ROSACEAE	BRUCE'S CINQUEFOIL	native	
Potentilla concinna	ROSACEAE		native	
Potentilla concinna var. proxima	ROSACEAE	EARLY CINQUEFOIL	native	
Potentilla cristae	ROSACEAE	CRESTED POTENTILLA	native	
Potentilla drummondii	ROSACEAE	DRUMMOND'S CINQUEFOIL	native	
Potentilla flabellifolia	ROSACEAE	FANLEAF CINQUEFOIL	native	
Potentilla glaucophylla	ROSACEAE		native	
Potentilla glaucophylla var. glaucophylla	ROSACEAE	BLUELEAF CINQUEFOIL	native	
Potentilla gracilis	ROSACEAE	SLENDER CINQUEFOIL	native	
Potentilla gracilis var. elmeri	ROSACEAE		native	
Potentilla gracilis var. fastigiata	ROSACEAE		native	
Potentilla gracilis var. flabelliformis	ROSACEAE		native	
Potentilla gracilis var. gracilis	ROSACEAE		native	
Potentilla grayi	ROSACEAE	GRAY'S CINQUEFOIL	native	
Potentilla hickmanii	ROSACEAE	HICKMAN'S CINQUEFOIL	native	
Potentilla jepsonii	ROSACEAE	JEPSON'S CINQUEFOIL	native	
Potentilla millefolia	ROSACEAE	FEATHER CINQUEFOIL	native	
Potentilla morefieldii	ROSACEAE	MOREFIELD'S CINQUEFOIL	native	
Potentilla newberryi	ROSACEAE	NEWBERRY'S CINQUEFOIL	native	
Potentilla norvegica	ROSACEAE	ROUGH CINQUEFOIL	naturalized	
Potentilla pensylvanica	ROSACEAE	PRAIRIE CINQUEFOIL	native	
Potentilla pseudosericea	ROSACEAE	MONO CINQUEFOIL	native	
Potentilla pulcherrima	ROSACEAE	BEAUTIFUL CINQUEFOIL	native	
Potentilla recta	ROSACEAE	SULPHUR CINQUEFOIL	naturalized	
Potentilla rimicola	ROSACEAE	CLIFF CINQUEFOIL	native	
Potentilla rivalis	ROSACEAE	RIVER CINQUEFOIL	native	
Potentilla wheeleri	ROSACEAE	WHEELER'S CINQUEFOIL	native	
Poteridium annuum	ROSACEAE	WESTERN BURNET	native	
Poterium sanguisorba	ROSACEAE	GARDEN BURNET	naturalized	
Prenanthella exigua	ASTERACEAE	BRIGHTWHITE	native	
Primula suffrutescens	PRIMULACEAE	SIERRA PRIMROSE	native	
Proboscidea althaeifolia	MARTYNIACEAE	DESERT UNICORN-PLANT	native	
Proboscidea louisianica	MARTYNIACEAE		naturalized	
Proboscidea louisianica subsp. louisianica	MARTYNIACEAE		naturalized	
Proboscidea lutea	MARTYNIACEAE		naturalized	
Prosartes hookeri	LILIACEAE		native	
Prosartes parvifolia	LILIACEAE	SISKIYOU BELLS	native	
Prosartes smithii	LILIACEAE		native	
Prosopis glandulosa	FABACEAE		native	
Prosopis glandulosa var. torreyana	FABACEAE	HONEY MESQUITE	native	
Prosopis pubescens	FABACEAE	TORNILLO	native	
Prosopis velutina	FABACEAE		naturalized	
Prunella vulgaris	LAMIACEAE		native	
Prunella vulgaris var. lanceolata	LAMIACEAE		native	
Prunella vulgaris var. vulgaris	LAMIACEAE		naturalized	
Prunus andersonii	ROSACEAE	DESERT PEACH	native	
Prunus cerasifera	ROSACEAE	CHERRY PLUM	naturalized	
Prunus dulcis	ROSACEAE	ALMOND	naturalized	
Prunus emarginata	ROSACEAE	BITTER CHERRY	native	
Prunus eremophila	ROSACEAE	MOJAVE DESERT PLUM	native	
Prunus fasciculata	ROSACEAE	DESERT ALMOND	native	
Prunus fasciculata var. fasciculata	ROSACEAE		native	
Prunus fasciculata var. punctata	ROSACEAE	SAND ALMOND	native	
Prunus fremontii	ROSACEAE	DESERT APRICOT	native	
Prunus ilicifolia	ROSACEAE		native	
Prunus ilicifolia subsp. ilicifolia	ROSACEAE	HOLLY-LEAFED CHERRY	native	
Prunus ilicifolia subsp. lyonii	ROSACEAE	CATALINA CHERRY	native	
Prunus persica	ROSACEAE	PEACH	naturalized	
Prunus subcordata	ROSACEAE	SIERRA PLUM	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 GOLDEN SUNBURST	native	
Pseudobahia heermannii	ASTERACEAE	BRITTLESTEM	native	
Pseudobahia peirsonii	ASTERACEAE	SAN JOAQUIN ADOBE SUNBURST	native	
Pseudognaphalium beneolens	ASTERACEAE		native	
Pseudognaphalium biolettii	ASTERACEAE		native	
Pseudognaphalium californicum	ASTERACEAE		native	
Pseudognaphalium canescens	ASTERACEAE		native	
Pseudognaphalium leucocephalum	ASTERACEAE	WHITE RABBIT-TOBACCO	native	
Pseudognaphalium luteoalbum	ASTERACEAE		naturalized	
Pseudognaphalium macounii	ASTERACEAE	MACOUN'S EVERLASTING	native	
Pseudognaphalium microcephalum	ASTERACEAE		native	
Pseudognaphalium ramosissimum	ASTERACEAE		native	
Pseudognaphalium roseum	ASTERACEAE		native	
Pseudognaphalium stramineum	ASTERACEAE		native	
Pseudognaphalium thermale	ASTERACEAE		native	
Pseudorontium cyathiferum	PLANTAGINACEAE	DEEP CANYON SNAPDRAGON	native	
Pseudostellaria jamesiana	CARYOPHYLLACEAE	TUBER STARWORT	native	
Pseudostellaria sierrae	CARYOPHYLLACEAE	SIERRA STARWORT	native	
Pseudotrillium rivale	MELANTHIACEAE	BROOK WAKEROBIN	native	
Pseudotsuga macrocarpa	PINACEAE	BIGCONE SPRUCE	native	
Pseudotsuga menziesii	PINACEAE		native	
Pseudotsuga menziesii var. menziesii	PINACEAE	DOUGLAS-FIR	native	
Psilocarphus brevissimus	ASTERACEAE		native	
Psilocarphus brevissimus var. brevissimus	ASTERACEAE	DWARF WOOLLYHEADS	native	
Psilocarphus brevissimus var. multiflorus	ASTERACEAE	DELTA WOOLLY-MARBLES	native	
Psilocarphus chilensis	ASTERACEAE	ROUND WOOLLY-MARBLES	native	
Psilocarphus elatior	ASTERACEAE	TALL WOOLLY-MARBLES	native	
Psilocarphus oregonus	ASTERACEAE	OREGON WOOLLYHEADS	native	
Psilocarphus tenellus	ASTERACEAE	SLENDER WOOLLY-MARBLES	native	
Psilostrophe cooperi	ASTERACEAE		native	
Psorothamnus arborescens	FABACEAE	MOJAVE INDIGO-BUSH	native	
Psorothamnus arborescens var. arborescens	FABACEAE		native	
Psorothamnus arborescens var. minutifolius	FABACEAE		native	
Psorothamnus arborescens var. simplicifolius	FABACEAE		native	
Psorothamnus emoryi	FABACEAE		native	
Psorothamnus fremontii	FABACEAE	FREMONT'S DALEA	native	
Psorothamnus fremontii var. attenuatus	FABACEAE	NARROW-LEAVED PSOROTHAMNUS	native	
Psorothamnus fremontii var. fremontii	FABACEAE		native	
Psorothamnus polydenius	FABACEAE		native	
Psorothamnus schottii	FABACEAE	INDIGO-BUSH	native	
Psorothamnus spinosus	FABACEAE	SMOKE TREE	native	
Ptelea crenulata	RUTACEAE		native	
Pteridium aquilinum	DENNSTAEDTIACEAE		native	
Pteridium aquilinum var. pubescens	DENNSTAEDTIACEAE		native	
Pteris cretica	PTERIDACEAE	CRETAN BRAKE	naturalized	
Pteris vittata	PTERIDACEAE	LADDER BRAKE	naturalized	
Pterospora andromedea	ERICACEAE		native	
Pterostegia drymarioides	POLYGONACEAE		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		native	
Pulicaria paludosa	ASTERACEAE		naturalized	
Punica granatum	LYTHRACEAE		naturalized	
Purshia stansburyana	ROSACEAE	CLIFFROSE	native	
Purshia tridentata	ROSACEAE	BITTERBRUSH	native	
Purshia tridentata var. glandulosa	ROSACEAE		native	
Purshia tridentata var. tridentata	ROSACEAE		native	
Pycnanthemum californicum	LAMIACEAE		native	
Pyracantha angustifolia	ROSACEAE	WOOLLY FIRETHORN	naturalized	
Pyracantha fortuneana	ROSACEAE	CHINESE FIRETHORN	naturalized	
Pyracantha koidzumii	ROSACEAE	TAIWAN FIRETHORN	naturalized	
Pyrola asarifolia	ERICACEAE		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	ALPINE FLAMES	native	
Pyrrocoma carthamoides	ASTERACEAE		native	
Pyrrocoma carthamoides var. cusickii	ASTERACEAE	LARGE-FLOWERED GOLDENWEED	native	
Pyrrocoma hirta	ASTERACEAE	TACKY GOLDENWEED	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	STICKY PYRROCOMA	native	
Pyrrocoma racemosa	ASTERACEAE	CLUSTERED GOLDENWEED	native	
Pyrrocoma racemosa var. congesta	ASTERACEAE	DEL NORTE PYRROCOMA	native	
Pyrrocoma racemosa var. paniculata	ASTERACEAE		native	
Pyrrocoma racemosa var. pinetorum	ASTERACEAE	PINE PYRROCOMA	native	
Pyrrocoma racemosa var. racemosa	ASTERACEAE		native	
Pyrrocoma racemosa var. sessiliflora	ASTERACEAE		native	
Pyrrocoma uniflora	ASTERACEAE	PLANTAIN GOLDENWEED	native	
Pyrrocoma uniflora var. gossypina	ASTERACEAE	BEAR VALLEY PYRROCOMA	native	
Pyrrocoma uniflora var. uniflora	ASTERACEAE		native	
Pyrus calleryana	ROSACEAE		naturalized	acceptance uncertain
Pyrus communis	ROSACEAE	COMMON PEAR	naturalized	
Quercus agrifolia	FAGACEAE	ENCINA	native	
Quercus agrifolia var. agrifolia	FAGACEAE		native	
Quercus agrifolia var. oxyadenia	FAGACEAE		native	
Quercus berberidifolia	FAGACEAE	SCRUB OAK	native	
Quercus cedrosensis	FAGACEAE	CEDROS ISLAND OAK	native	
Quercus chrysolepis	FAGACEAE	CANYON LIVE 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		native	
Quercus durata var. gabrielensis	FAGACEAE	SAN GABRIEL OAK	native	
Quercus engelmannii	FAGACEAE	ENGELMANN OAK	native	
Quercus garryana	FAGACEAE	OREGON OAK	native	
Quercus garryana var. breweri	FAGACEAE		native	
Quercus garryana var. garryana	FAGACEAE		native	
Quercus garryana var. semota	FAGACEAE		native	
Quercus ilex	FAGACEAE	HOLLY OAK	naturalized	
Quercus john-tuckeri	FAGACEAE	TUCKER'S OAK	native	
Quercus kelloggii	FAGACEAE	CALIFORNIA BLACK OAK	native	
Quercus lobata	FAGACEAE	ROBLE	native	
Quercus pacifica	FAGACEAE	ISLAND SCRUB OAK	native	
Quercus palmeri	FAGACEAE	PALMER'S OAK	native	
Quercus parvula	FAGACEAE		native	
Quercus parvula var. parvula	FAGACEAE	SANTA CRUZ ISLAND OAK	native	
Quercus parvula var. shrevei	FAGACEAE	SHREVE OAK	native	
Quercus parvula var. tamalpaisensis	FAGACEAE	TAMALPAIS OAK	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		native	
Quercus wislizeni var. wislizeni	FAGACEAE		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 alismifolius	RANUNCULACEAE		native	
Ranunculus alismifolius var. alismellus	RANUNCULACEAE		native	
Ranunculus alismifolius var. alismifolius	RANUNCULACEAE		native	
Ranunculus alismifolius var. hartwegii	RANUNCULACEAE		native	
Ranunculus alismifolius var. lemmonii	RANUNCULACEAE		native	
Ranunculus andersonii	RANUNCULACEAE		native	
Ranunculus aquatilis	RANUNCULACEAE		native	
Ranunculus aquatilis var. aquatilis	RANUNCULACEAE		native	
Ranunculus aquatilis var. diffusus	RANUNCULACEAE		native	
Ranunculus arvensis	RANUNCULACEAE		naturalized	
Ranunculus bonariensis	RANUNCULACEAE		native	
Ranunculus bonariensis var. trisepalus	RANUNCULACEAE		native	
Ranunculus californicus	RANUNCULACEAE		native	
Ranunculus californicus var. californicus	RANUNCULACEAE		native	
Ranunculus californicus var. cuneatus	RANUNCULACEAE		native	
Ranunculus canus	RANUNCULACEAE		native	
Ranunculus canus var. canus	RANUNCULACEAE		native	
Ranunculus canus var. ludovicianus	RANUNCULACEAE		native	
Ranunculus cymbalaria	RANUNCULACEAE		native	
Ranunculus eschscholtzii	RANUNCULACEAE		native	
Ranunculus eschscholtzii var. eschscholtzii	RANUNCULACEAE		native	
Ranunculus eschscholtzii var. oxynotus	RANUNCULACEAE		native	
Ranunculus eschscholtzii var. suksdorfii	RANUNCULACEAE		native	
Ranunculus flabellaris	RANUNCULACEAE		native	
Ranunculus flammula	RANUNCULACEAE		native	
Ranunculus flammula var. flammula	RANUNCULACEAE		native	
Ranunculus flammula var. ovalis	RANUNCULACEAE		native	
Ranunculus glaberrimus	RANUNCULACEAE		native	
Ranunculus glaberrimus var. ellipticus	RANUNCULACEAE		native	
Ranunculus glaberrimus var. glaberrimus	RANUNCULACEAE		native	
Ranunculus gormanii	RANUNCULACEAE		native	
Ranunculus hebecarpus	RANUNCULACEAE		native	
Ranunculus hydrocharoides	RANUNCULACEAE	FROG'S-BIT BUTTERCUP	native	
Ranunculus hystriculus	RANUNCULACEAE		native	
Ranunculus lobbii	RANUNCULACEAE	LOBB'S AQUATIC BUTTERCUP	native	
Ranunculus macounii	RANUNCULACEAE	MACOUN'S BUTTERCUP	native	
Ranunculus muricatus	RANUNCULACEAE		naturalized	
Ranunculus occidentalis	RANUNCULACEAE		native	
Ranunculus occidentalis var. dissectus	RANUNCULACEAE		native	
Ranunculus occidentalis var. howellii	RANUNCULACEAE		native	
Ranunculus occidentalis var. occidentalis	RANUNCULACEAE		native	
Ranunculus occidentalis var. ultramontanus	RANUNCULACEAE		native	
Ranunculus orthorhynchus	RANUNCULACEAE		native	
Ranunculus orthorhynchus var. bloomeri	RANUNCULACEAE		native	
Ranunculus orthorhynchus var. orthorhynchus	RANUNCULACEAE		native	
Ranunculus orthorhynchus var. platyphyllus	RANUNCULACEAE		native	
Ranunculus parviflorus	RANUNCULACEAE		naturalized	
Ranunculus populago	RANUNCULACEAE		native	
Ranunculus pusillus	RANUNCULACEAE		native	
Ranunculus repens	RANUNCULACEAE		naturalized	
Ranunculus sardous	RANUNCULACEAE		naturalized	
Ranunculus sceleratus	RANUNCULACEAE		native	
Ranunculus sceleratus var. multifidus	RANUNCULACEAE		native	
Ranunculus sceleratus var. sceleratus	RANUNCULACEAE		naturalized	
Ranunculus testiculatus	RANUNCULACEAE		naturalized	
Ranunculus uncinatus	RANUNCULACEAE		native	
Raphanus raphanistrum	BRASSICACEAE	JOINTED CHARLOCK	naturalized	
Raphanus sativus	BRASSICACEAE	RADISH	naturalized	
Rapistrum rugosum	BRASSICACEAE		naturalized	
Ratibida columnifera	ASTERACEAE		naturalized	
Reseda alba	RESEDACEAE	WHITE MIGNONETTE	naturalized	
Reseda lutea	RESEDACEAE	YELLOW MIGNONETTE	naturalized	
Reseda luteola	RESEDACEAE	DYER'S ROCKET	naturalized	
Rhagadiolus stellatus	ASTERACEAE		naturalized	
Rhamnus alnifolia	RHAMNACEAE	ALDER BUCKTHORN	native	
Rhamnus crocea	RHAMNACEAE	SPINY REDBERRY	native	
Rhamnus ilicifolia	RHAMNACEAE	HOLLYLEAF REDBERRY	native	
Rhamnus pilosa	RHAMNACEAE		native	
Rhamnus pirifolia	RHAMNACEAE	ISLAND REDBERRY	native	
Rhodiola integrifolia	CRASSULACEAE		native	
Rhodiola integrifolia subsp. integrifolia	CRASSULACEAE	WESTERN ROSEROOT	native	
Rhododendron columbianum	ERICACEAE	WESTERN LABRADOR TEA	native	
Rhododendron macrophyllum	ERICACEAE	CALIFORNIA RHODODENDRON	native	
Rhododendron occidentale	ERICACEAE	CALIFORNIA AZALEA	native	
Rhus aromatica	ANACARDIACEAE	SKUNK BUSH	native	
Rhus integrifolia	ANACARDIACEAE	LEMONADE BERRY	native	
Rhus ovata	ANACARDIACEAE	SUGAR BUSH	native	
Rhynchospora alba	CYPERACEAE	WHITE BEAKED-RUSH	native	
Rhynchospora californica	CYPERACEAE	CALIFORNIA BEAKED-RUSH	native	
Rhynchospora capitellata	CYPERACEAE	BROWNISH BEAKED-RUSH	native	
Rhynchospora globularis	CYPERACEAE		native	
Ribes amarum	GROSSULARIACEAE	BITTER GOOSEBERRY	native	
Ribes aureum	GROSSULARIACEAE	GOLDEN CURRANT	native	
Ribes aureum var. aureum	GROSSULARIACEAE		native	
Ribes aureum var. gracillimum	GROSSULARIACEAE		native	
Ribes binominatum	GROSSULARIACEAE	TRAILING GOOSEBERRY	native	
Ribes bracteosum	GROSSULARIACEAE	STINK CURRANT	native	
Ribes californicum	GROSSULARIACEAE	HILLSIDE GOOSEBERRY	native	
Ribes californicum var. californicum	GROSSULARIACEAE		native	
Ribes californicum var. hesperium	GROSSULARIACEAE		native	
Ribes canthariforme	GROSSULARIACEAE	MORENO CURRANT	native	
Ribes cereum	GROSSULARIACEAE	WAX CURRANT	native	
Ribes cereum var. cereum	GROSSULARIACEAE		native	
Ribes cereum var. inebrians	GROSSULARIACEAE		native	
Ribes divaricatum	GROSSULARIACEAE		native	
Ribes divaricatum var. parishii	GROSSULARIACEAE	PARISH'S GOOSEBERRY	native	
Ribes divaricatum var. pubiflorum	GROSSULARIACEAE	STRAGGLE BUSH	native	
Ribes hudsonianum	GROSSULARIACEAE		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		native	
Ribes inerme var. klamathense	GROSSULARIACEAE		native	
Ribes lacustre	GROSSULARIACEAE	SWAMP CURRANT	native	
Ribes lasianthum	GROSSULARIACEAE	WOOLLY-FLOWERED 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		native	
Ribes malvaceum var. viridifolium	GROSSULARIACEAE		native	
Ribes marshallii	GROSSULARIACEAE	MARSHALL'S GOOSEBERRY	native	
Ribes menziesii	GROSSULARIACEAE	CANYON GOOSEBERRY	native	
Ribes menziesii var. ixoderme	GROSSULARIACEAE	AROMATIC CANYON GOOSEBERRY	native	
Ribes menziesii var. menziesii	GROSSULARIACEAE		native	
Ribes montigenum	GROSSULARIACEAE	WESTERN PRICKLY GOOSEBERRY	native	
Ribes nevadense	GROSSULARIACEAE	MOUNTAIN PINK CURRANT	native	
Ribes quercetorum	GROSSULARIACEAE	OAKWOODS GOOSEBERRY	native	
Ribes roezlii	GROSSULARIACEAE	SIERRAN GOOSEBERRY	native	
Ribes roezlii var. amictum	GROSSULARIACEAE	HOARY GOOSEBERRY	native	
Ribes roezlii var. cruentum	GROSSULARIACEAE		native	
Ribes roezlii var. roezlii	GROSSULARIACEAE		native	
Ribes sanguineum	GROSSULARIACEAE	RED-FLOWERING CURRANT	native	
Ribes sanguineum var. glutinosum	GROSSULARIACEAE		native	
Ribes sanguineum var. sanguineum	GROSSULARIACEAE		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		native	
Ribes viburnifolium	GROSSULARIACEAE	SANTA CATALINA ISLAND CURRANT	native	
Ribes victoris	GROSSULARIACEAE	VICTOR'S GOOSEBERRY	native	
Ribes viscosissimum	GROSSULARIACEAE	STICKY CURRANT	native	
Ricinus communis	EUPHORBIACEAE		naturalized	
Rigiopappus leptocladus	ASTERACEAE		native	
Robinia neomexicana	FABACEAE	NEW MEXICO LOCUST	native	
Robinia pseudoacacia	FABACEAE	BLACK LOCUST	naturalized	
Romanzoffia californica	BORAGINACEAE		native	
Romanzoffia sitchensis	BORAGINACEAE		native	
Romanzoffia tracyi	BORAGINACEAE	TRACY'S ROMANZOFFIA	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		native	
Rorippa curvisiliqua	BRASSICACEAE		native	
Rorippa palustris	BRASSICACEAE		native	
Rorippa palustris subsp. hispida	BRASSICACEAE		native	
Rorippa palustris subsp. palustris	BRASSICACEAE		native	
Rorippa sinuata	BRASSICACEAE		native	
Rorippa sphaerocarpa	BRASSICACEAE		native	
Rorippa subumbellata	BRASSICACEAE	TAHOE YELLOW CRESS	native	
Rorippa tenerrima	BRASSICACEAE		native	
Rosa bridgesii	ROSACEAE	SIERRAN DWARF ROSE	native	
Rosa californica	ROSACEAE	CALIFORNIA ROSE	native	
Rosa canina	ROSACEAE	DOG ROSE	naturalized	
Rosa gymnocarpa	ROSACEAE	WOOD ROSE	native	
Rosa gymnocarpa var. gymnocarpa	ROSACEAE		native	
Rosa gymnocarpa var. serpentina	ROSACEAE	GASQUET ROSE	native	
Rosa minutifolia	ROSACEAE	SMALL-LEAVED ROSE	native	
Rosa multiflora	ROSACEAE	MULTIFLORA ROSA	naturalized	
Rosa nutkana	ROSACEAE		native	
Rosa nutkana subsp. macdougalii	ROSACEAE		native	
Rosa nutkana subsp. nutkana	ROSACEAE	NOOTKA ROSE	native	
Rosa pinetorum	ROSACEAE	PINE ROSE	native	
Rosa pisocarpa	ROSACEAE	CLUSTER ROSE	native	
Rosa pisocarpa subsp. ahartii	ROSACEAE	AHART ROSE	native	
Rosa pisocarpa subsp. pisocarpa	ROSACEAE	PEA ROSE	native	
Rosa rubiginosa	ROSACEAE	SWEET-BRIER	naturalized	
Rosa spithamea	ROSACEAE	COAST GROUND ROSE	native	
Rosa woodsii	ROSACEAE		native	
Rosa woodsii subsp. gratissima	ROSACEAE	MOJAVE ROSE	native	
Rosa woodsii subsp. ultramontana	ROSACEAE	INTERIOR ROSE	native	
Rotala indica	LYTHRACEAE		naturalized	
Rotala ramosior	LYTHRACEAE		native	
Rubus armeniacus	ROSACEAE	HIMALAYAN BLACKBERRY	naturalized	
Rubus glaucifolius	ROSACEAE	WAXLEAF RASPBERRY	native	
Rubus laciniatus	ROSACEAE	CUTLEAF BLACKBERRY	naturalized	
Rubus lasiococcus	ROSACEAE	ROUGHFRUIT RASPBERRY	native	
Rubus leucodermis	ROSACEAE	WHITEBARK 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	ELMLEAF BLACKBERRY	naturalized	
Rubus ulmifolius var. anoplothyrsus	ROSACEAE		naturalized	
Rubus ursinus	ROSACEAE	CALIFORNIA BLACKBERRY	native	
Rudbeckia californica	ASTERACEAE	CALIFORNIA CONE-FLOWER	native	
Rudbeckia glaucescens	ASTERACEAE	WAXY CONE-FLOWER	native	
Rudbeckia hirta	ASTERACEAE		naturalized	
Rudbeckia hirta var. pulcherrima	ASTERACEAE	BLACK-EYED SUSAN	naturalized	
Rudbeckia klamathensis	ASTERACEAE	KLAMATH CONE-FLOWER	native	
Rudbeckia occidentalis	ASTERACEAE	WESTERN CONE-FLOWER	native	
Rumex acetosella	POLYGONACEAE	SHEEP SORREL	naturalized	
Rumex britannica	POLYGONACEAE		native	
Rumex californicus	POLYGONACEAE		native	
Rumex conglomeratus	POLYGONACEAE		naturalized	
Rumex crassus	POLYGONACEAE		native	
Rumex crispus	POLYGONACEAE	CURLY DOCK	naturalized	
Rumex dentatus	POLYGONACEAE		naturalized	
Rumex fueginus	POLYGONACEAE	GOLDEN DOCK	native	
Rumex hymenosepalus	POLYGONACEAE	WILD-RHUBARB	native	
Rumex kerneri	POLYGONACEAE		naturalized	
Rumex lacustris	POLYGONACEAE		native	
Rumex obtusifolius	POLYGONACEAE	BITTER DOCK	naturalized	
Rumex occidentalis	POLYGONACEAE	WESTERN DOCK	native	
Rumex paucifolius	POLYGONACEAE		native	
Rumex persicarioides	POLYGONACEAE		native	
Rumex pulcher	POLYGONACEAE	FIDDLE DOCK	naturalized	
Rumex salicifolius	POLYGONACEAE	WILLOW DOCK	native	
Rumex stenophyllus	POLYGONACEAE		naturalized	
Rumex transitorius	POLYGONACEAE		native	
Rumex triangulivalvis	POLYGONACEAE		native	
Rumex utahensis	POLYGONACEAE		native	
Rumex venosus	POLYGONACEAE	WINGED DOCK	native	
Rumex violascens	POLYGONACEAE		native	
Rupertia hallii	FABACEAE	HALL'S RUPERTIA	native	
Rupertia physodes	FABACEAE		native	
Rupertia rigida	FABACEAE	PARISH'S RUPERTIA	native	
Ruppia cirrhosa	RUPPIACEAE		native	
Ruppia maritima	RUPPIACEAE		native	
Ruta chalepensis	RUTACEAE		naturalized	
Rytidosperma penicillatum	POACEAE	POVERTY GRASS	naturalized	
Rytidosperma racemosum	POACEAE		naturalized	
Saccharum ravennae	POACEAE	RAVENNA GRASS	naturalized	
Sagina apetala	CARYOPHYLLACEAE	DWARF PEARLWORT	naturalized	
Sagina decumbens	CARYOPHYLLACEAE		native	
Sagina decumbens subsp. occidentalis	CARYOPHYLLACEAE	WESTERN PEARLWORT	native	
Sagina maxima	CARYOPHYLLACEAE		native	
Sagina maxima subsp. crassicaulis	CARYOPHYLLACEAE	THICK-STEMMED PEARLWORT	native	
Sagina procumbens	CARYOPHYLLACEAE	MATTED PEARLWORT	naturalized	
Sagina saginoides	CARYOPHYLLACEAE	ARCTIC PEARLWORT	native	
Sagittaria cuneata	ALISMATACEAE		native	
Sagittaria latifolia	ALISMATACEAE		native	
Sagittaria longiloba	ALISMATACEAE		native	
Sagittaria montevidensis	ALISMATACEAE		native	
Sagittaria montevidensis subsp. calycina	ALISMATACEAE		native	
Sagittaria rigida	ALISMATACEAE	SESSILE-FRUITED ARROWHEAD	naturalized	
Sagittaria sanfordii	ALISMATACEAE	SANFORD'S ARROWHEAD	native	
Salicornia bigelovii	CHENOPODIACEAE		native	
Salicornia depressa	CHENOPODIACEAE		native	
Salicornia pacifica	CHENOPODIACEAE		native	
Salicornia perennis	CHENOPODIACEAE		native	
Salicornia rubra	CHENOPODIACEAE		native	
Salix alba	SALICACEAE	WHITE WILLOW	naturalized	
Salix babylonica	SALICACEAE	WEEPING WILLOW	naturalized	
Salix bebbiana	SALICACEAE	BEBB'S WILLOW	native	
Salix boothii	SALICACEAE	BOOTH'S WILLOW	native	
Salix brachycarpa	SALICACEAE		native	
Salix brachycarpa var. brachycarpa	SALICACEAE	SHORT-FRUITED WILLOW	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		native	
Salix exigua var. exigua	SALICACEAE	COYOTE WILLOW	native	
Salix exigua var. hindsiana	SALICACEAE	HINDS' WILLOW	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	TAIL-LEAF WILLOW	native	
Salix lasiandra var. lasiandra	SALICACEAE	PACIFIC WILLOW	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	SNOW WILLOW	native	
Salix orestera	SALICACEAE	GRAY-LEAFED SIERRA WILLOW	native	
Salix petrophila	SALICACEAE	ROCKY MOUNTAIN WILLOW	native	
Salix planifolia	SALICACEAE	TEA-LEAFED WILLOW	native	
Salix prolixa	SALICACEAE	MACKENZIE'S WILLOW	native	
Salix purpurea	SALICACEAE	BASKET WILLOW	naturalized	
Salix scouleriana	SALICACEAE	SCOULER'S WILLOW	native	
Salix sitchensis	SALICACEAE	SITKA WILLOW	native	
Salix tracyi	SALICACEAE	TRACY'S WILLOW	native	
Salpichroa origanifolia	SOLANACEAE		naturalized	
Salsola australis	CHENOPODIACEAE		naturalized	
Salsola damascena	CHENOPODIACEAE		naturalized	
Salsola gobicola	CHENOPODIACEAE		naturalized	
Salsola paulsenii	CHENOPODIACEAE	BARBWIRE RUSSIAN THISTLE	naturalized	
Salsola ryanii	CHENOPODIACEAE		naturalized	
Salsola soda	CHENOPODIACEAE		naturalized	
Salsola tragus	CHENOPODIACEAE	TUMBLEWEED	naturalized	
Saltugilia australis	POLEMONIACEAE		native	
Saltugilia caruifolia	POLEMONIACEAE	CARAWAY-LEAVED WOODLAND-GILIA	native	
Saltugilia latimeri	POLEMONIACEAE	LATIMER'S WOODLAND-GILIA	native	
Saltugilia splendens	POLEMONIACEAE	SPLENDID WOODLAND-GILIA	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 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	CALIFORNIA HUMMINGBIRD SAGE	native	
Salvia vaseyi	LAMIACEAE		native	
Salvia virgata	LAMIACEAE	MEADOW SAGE	naturalized	
Salvinia minima	SALVINIACEAE		naturalized	
Salvinia molesta	SALVINIACEAE		naturalized	
Sambucus nigra	ADOXACEAE		native	
Sambucus nigra subsp. caerulea	ADOXACEAE	BLUE ELDERBERRY	native	
Sambucus racemosa	ADOXACEAE		native	
Sambucus racemosa var. melanocarpa	ADOXACEAE	BLACK ELDERBERRY	native	
Sambucus racemosa var. racemosa	ADOXACEAE	RED ELDERBERRY	native	
Samolus parviflorus	THEOPHRASTACEAE	SEASIDE BROOKWEED	native	
Sanguisorba officinalis	ROSACEAE	GREAT BURNET	native	
Sanicula arctopoides	APIACEAE	YELLOW MATS	native	
Sanicula arguta	APIACEAE		native	
Sanicula bipinnata	APIACEAE	POISON SANICLE	native	
Sanicula bipinnatifida	APIACEAE	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	
Sanvitalia abertii	ASTERACEAE	ABERT'S SANVITALIA	native	
Saponaria officinalis	CARYOPHYLLACEAE		naturalized	
Sarcobatus baileyi	SARCOBATACEAE		native	
Sarcobatus vermiculatus	SARCOBATACEAE		native	
Sarcodes sanguinea	ERICACEAE		native	
Sarracenia purpurea	SARRACENIACEAE		naturalized	
Sarracenia purpurea subsp. purpurea	SARRACENIACEAE		naturalized	
Sarracenia purpurea subsp. venosa	SARRACENIACEAE		naturalized	
Saussurea americana	ASTERACEAE	AMERICAN SAW-WORT	native	
Saxifraga cespitosa	SAXIFRAGACEAE	TUFTED SAXIFRAGE	native	
Saxifraga hyperborea	SAXIFRAGACEAE		native	
Saxifraga mertensiana	SAXIFRAGACEAE		native	
Saxifragopsis fragarioides	SAXIFRAGACEAE		native	
Scabiosa atropurpurea	DIPSACACEAE		naturalized	
Scandix pecten-veneris	APIACEAE	VENUS' NEEDLE	naturalized	
Sceptridium multifidum	OPHIOGLOSSACEAE	LEATHER GRAPE-FERN	native	
Scheuchzeria palustris	SCHEUCHZERIACEAE	SCHEUCHZERIA	native	
Schinus molle	ANACARDIACEAE	PEPPER TREE	naturalized	
Schinus polygamus	ANACARDIACEAE	CHILEAN PEPPER TREE	naturalized	
Schinus terebinthifolius	ANACARDIACEAE	BRAZILIAN PEPPER TREE	naturalized	
Schismus arabicus	POACEAE		naturalized	
Schismus barbatus	POACEAE		naturalized	
Schoenoplectus acutus	CYPERACEAE		native	
Schoenoplectus acutus var. occidentalis	CYPERACEAE	COMMON TULE	native	
Schoenoplectus americanus	CYPERACEAE	OLNEY'S THREE-SQUARE BULRUSH	native	
Schoenoplectus californicus	CYPERACEAE	SOUTHERN BULRUSH	native	
Schoenoplectus heterochaetus	CYPERACEAE	SLENDER BULRUSH	native	
Schoenoplectus mucronatus	CYPERACEAE	RICE-FIELD BULRUSH	naturalized	
Schoenoplectus pungens	CYPERACEAE		native	
Schoenoplectus pungens var. longispicatus	CYPERACEAE	COMMON THREE-SQUARE BULRUSH	native	
Schoenoplectus saximontanus	CYPERACEAE	ROCKY MOUNTAIN BULRUSH	native	
Schoenoplectus subterminalis	CYPERACEAE	WATER BULRUSH	native	
Schoenoplectus tabernaemontani	CYPERACEAE	SOFT-STEM BULRUSH	native	
Schoenus nigricans	CYPERACEAE	BLACK BOG-RUSH	native	
Scirpus congdonii	CYPERACEAE		native	
Scirpus cyperinus	CYPERACEAE		naturalized	
Scirpus diffusus	CYPERACEAE		native	
Scirpus microcarpus	CYPERACEAE		native	
Scirpus pendulus	CYPERACEAE	PENDULOUS BULRUSH	native	
Scleranthus annuus	CARYOPHYLLACEAE		naturalized	
Scleranthus annuus subsp. annuus	CARYOPHYLLACEAE		naturalized	
Sclerocactus johnsonii	CACTACEAE	JOHNSON'S BEE-HIVE CACTUS	native	
Sclerocactus polyancistrus	CACTACEAE	MOJAVE FISHHOOK CACTUS	native	
Sclerochloa dura	POACEAE	FAIRGROUND GRASS	naturalized	
Sclerolinon digynum	LINACEAE		native	
Scleropogon brevifolius	POACEAE	BURRO GRASS	native	
Scoliopus bigelovii	LILIACEAE		native	
Scolymus hispanicus	ASTERACEAE		naturalized	
Scopulophila rixfordii	CARYOPHYLLACEAE	RIXFORD ROCKWORT	native	
Scorzonera hispanica	ASTERACEAE	VIPER'S GRASS	naturalized	
Scribneria bolanderi	POACEAE		native	
Scrophularia atrata	SCROPHULARIACEAE	BLACK-FLOWERED FIGWORT	native	
Scrophularia californica	SCROPHULARIACEAE	CALIFORNIA FIGWORT	native	
Scrophularia desertorum	SCROPHULARIACEAE		native	
Scrophularia lanceolata	SCROPHULARIACEAE		native	
Scrophularia peregrina	SCROPHULARIACEAE		naturalized	
Scrophularia villosa	SCROPHULARIACEAE	SANTA CATALINA FIGWORT	native	
Scutellaria antirrhinoides	LAMIACEAE		native	
Scutellaria bolanderi	LAMIACEAE		native	
Scutellaria bolanderi subsp. austromontana	LAMIACEAE	SOUTHERN MOUNTAINS SKULLCAP	native	
Scutellaria bolanderi subsp. bolanderi	LAMIACEAE		native	
Scutellaria californica	LAMIACEAE		native	
Scutellaria galericulata	LAMIACEAE	MARSH SKULLCAP	native	
Scutellaria lateriflora	LAMIACEAE	SIDE-FLOWERING SKULLCAP	native	
Scutellaria mexicana	LAMIACEAE	BLADDER-SAGE	native	
Scutellaria nana	LAMIACEAE		native	
Scutellaria siphocampyloides	LAMIACEAE		native	
Scutellaria tuberosa	LAMIACEAE		native	
Searsia lancea	ANACARDIACEAE	AFRICAN SUMAC	naturalized	
Secale cereale	POACEAE		naturalized	
Sedella leiocarpa	CRASSULACEAE	LAKE COUNTY STONECROP	native	
Sedella pentandra	CRASSULACEAE		native	
Sedella pumila	CRASSULACEAE		native	
Sedum albomarginatum	CRASSULACEAE	FEATHER RIVER STONECROP	native	
Sedum album	CRASSULACEAE	WHITE STONECROP	naturalized	
Sedum divergens	CRASSULACEAE	CASCADE STONECROP	native	
Sedum lanceolatum	CRASSULACEAE	SPEARLEAF STONECROP	native	
Sedum laxum	CRASSULACEAE		native	
Sedum laxum subsp. eastwoodiae	CRASSULACEAE	RED MOUNTAIN STONECROP	native	
Sedum laxum subsp. flavidum	CRASSULACEAE	PALE-YELLOW STONECROP	native	
Sedum laxum subsp. heckneri	CRASSULACEAE	HECKNER'S STONECROP	native	
Sedum laxum subsp. laxum	CRASSULACEAE	ROSEFLOWER STONECROP	native	
Sedum niveum	CRASSULACEAE	DAVIDSON'S STONECROP	native	
Sedum oblanceolatum	CRASSULACEAE	APPLEGATE STONECROP	native	
Sedum obtusatum	CRASSULACEAE	SIERRA STONECROP	native	
Sedum obtusatum subsp. boreale	CRASSULACEAE		native	
Sedum obtusatum subsp. obtusatum	CRASSULACEAE		native	
Sedum obtusatum subsp. paradisum	CRASSULACEAE	CANYON CREEK STONECROP	native	
Sedum obtusatum subsp. retusum	CRASSULACEAE		native	
Sedum oreganum	CRASSULACEAE	OREGON STONECROP	native	
Sedum oregonense	CRASSULACEAE	CREAM STONECROP	native	
Sedum praealtum	CRASSULACEAE	GREEN COCKSCOMB	naturalized	
Sedum radiatum	CRASSULACEAE	COAST RANGE STONECROP	native	
Sedum spathulifolium	CRASSULACEAE	BROADLEAF STONECROP	native	
Sedum stenopetalum	CRASSULACEAE		native	
Selaginella asprella	SELAGINELLACEAE	BLUISH SPIKE-MOSS	native	
Selaginella bigelovii	SELAGINELLACEAE		native	
Selaginella cinerascens	SELAGINELLACEAE	ASHY SPIKE-MOSS	native	
Selaginella eremophila	SELAGINELLACEAE	DESERT SPIKE-MOSS	native	
Selaginella hansenii	SELAGINELLACEAE		native	
Selaginella kraussiana	SELAGINELLACEAE		naturalized	acceptance uncertain
Selaginella leucobryoides	SELAGINELLACEAE	MOJAVE SPIKE-MOSS	native	
Selaginella oregana	SELAGINELLACEAE		native	
Selaginella scopulorum	SELAGINELLACEAE	ROCKY MOUNTAIN SPIKE-MOSS	native	
Selaginella wallacei	SELAGINELLACEAE		native	
Selaginella watsonii	SELAGINELLACEAE		native	
Senecio aphanactis	ASTERACEAE	CHAPARRAL RAGWORT	native	
Senecio aronicoides	ASTERACEAE	RAYLESS RAGWORT	native	
Senecio astephanus	ASTERACEAE	SAN GABRIEL RAGWORT	native	
Senecio blochmaniae	ASTERACEAE	BLOCHMAN'S RAGWORT	native	
Senecio californicus	ASTERACEAE	CALIFORNIA RAGWORT	native	
Senecio clarkianus	ASTERACEAE	CLARK'S RAGWORT	native	
Senecio elegans	ASTERACEAE	RED-PURPLE RAGWORT	naturalized	
Senecio flaccidus	ASTERACEAE	THREADLEAF RAGWORT	native	
Senecio flaccidus var. douglasii	ASTERACEAE	DOUGLAS' THREADLEAF RAGWORT	native	
Senecio flaccidus var. monoensis	ASTERACEAE	SMOOTH THREADLEAF RAGWORT	native	
Senecio fremontii	ASTERACEAE		native	
Senecio fremontii var. fremontii	ASTERACEAE	DWARF MOUNTAIN RAGWORT	native	
Senecio fremontii var. occidentalis	ASTERACEAE	WESTERN DWARF MOUNTAIN RAGWORT	native	
Senecio glomeratus f. ex	ASTERACEAE	CUTLEAF BURNWEED	naturalized	
Senecio hydrophiloides	ASTERACEAE	SWEET MARSH RAGWORT	native	
Senecio hydrophilus	ASTERACEAE	ALKALI-MARSH RAGWORT	native	
Senecio integerrimus	ASTERACEAE		native	
Senecio integerrimus var. exaltatus	ASTERACEAE	COLUMBIA RAGWORT	native	
Senecio integerrimus var. major	ASTERACEAE	LAMBS-TONGUE RAGWORT	native	
Senecio integerrimus var. ochroleucus	ASTERACEAE	PALE-YELLOW RAGWORT	native	
Senecio jacobaea	ASTERACEAE	TANSY RAGWORT	naturalized	
Senecio linearifolius	ASTERACEAE		naturalized	
Senecio linearifolius var. linearifolius	ASTERACEAE	LINEAR-LEAVED AUSTRALIAN FIREWEED	naturalized	
Senecio lyonii	ASTERACEAE	ISLAND SENECIO	native	
Senecio minimus	ASTERACEAE	COASTAL BURNWEED	naturalized	
Senecio mohavensis	ASTERACEAE	MOJAVE RAGWORT	native	
Senecio pattersonensis	ASTERACEAE	MOUNT PATTERSON SENECIO	native	
Senecio quadridentatus	ASTERACEAE	COTTON BURNWEED	naturalized	
Senecio scorzonella	ASTERACEAE	SIERRA RAGWORT	native	
Senecio serra	ASTERACEAE		native	
Senecio serra var. serra	ASTERACEAE	SAWTOOTH GROUNDSEL	native	
Senecio spartioides	ASTERACEAE	BROOM-LIKE RAGWORT	native	
Senecio sylvaticus	ASTERACEAE	WOODLAND RAGWORT	naturalized	
Senecio triangularis	ASTERACEAE	ARROWLEAF RAGWORT	native	
Senecio vulgaris	ASTERACEAE	COMMON GROUNDSEL	naturalized	
Senegalia greggii	FABACEAE	DEVIL'S CLAW	native	
Senna armata	FABACEAE	SPINY SENNA	native	
Senna artemisioides	FABACEAE	SILVER SENNA	naturalized	
Senna covesii	FABACEAE	COUES' CASSIA	native	
Senna didymobotrya	FABACEAE		naturalized	
Senna multiglandulosa	FABACEAE		naturalized	
Sequoia sempervirens	CUPRESSACEAE		native	
Sequoiadendron giganteum	CUPRESSACEAE		native	
Sericocarpus oregonensis	ASTERACEAE		native	
Sericocarpus oregonensis subsp. californicus	ASTERACEAE		native	
Sericocarpus oregonensis subsp. oregonensis	ASTERACEAE		native	
Sesbania herbacea	FABACEAE	COLORADO RIVER HEMP	native	
Sesbania punicea	FABACEAE	SCARLET SESBAN	naturalized	
Sesuvium verrucosum	AIZOACEAE	WESTERN SEA-PURSLANE	native	
Setaria adhaerens	POACEAE	BUR BRISTLE GRASS	naturalized	
Setaria faberi	POACEAE	CHINESE FOXTAIL	naturalized	
Setaria parviflora	POACEAE	KNOTROOT BRISTLE GRASS	native	
Setaria pumila	POACEAE		naturalized	
Setaria pumila subsp. pumila	POACEAE	YELLOW BRISTLE GRASS	naturalized	
Setaria sphacelata	POACEAE	AFRICAN BRISTLE GRASS	naturalized	
Setaria verticillata	POACEAE	HOOKED BRISTLE GRASS	naturalized	
Setaria viridis	POACEAE	GREEN BRISTLE GRASS	naturalized	
Shepherdia argentea	ELAEAGNACEAE	BUFFALO-BERRY	native	
Shepherdia canadensis	ELAEAGNACEAE	CANADIAN BUFFALO-BERRY	native	
Sherardia arvensis	RUBIACEAE	FIELD MADDER	naturalized	
Sibara deserti	BRASSICACEAE	DESERT WINGED ROCKCRESS	native	
Sibara filifolia	BRASSICACEAE	SANTA CRUZ ISLAND ROCKCRESS	native	
Sibaropsis hammittii	BRASSICACEAE	HAMMITT'S CLAY-CRESS	native	
Sibbaldia procumbens	ROSACEAE		native	
Sidalcea asprella	MALVACEAE		native	
Sidalcea asprella subsp. asprella	MALVACEAE	SIERRA FOOTHILLS CHECKERBLOOM	native	
Sidalcea asprella subsp. nana	MALVACEAE	DWARF SIERRAN CHECKERBLOOM	native	
Sidalcea calycosa	MALVACEAE	VERNAL POOL CHECKERBLOOM	native	
Sidalcea calycosa subsp. calycosa	MALVACEAE	HOGWALLOW CHECKERBLOOM	native	
Sidalcea calycosa subsp. rhizomata	MALVACEAE	POINT REYES CHECKERBLOOM	native	
Sidalcea celata	MALVACEAE	REDDING CHECKERBLOOM	native	
Sidalcea covillei	MALVACEAE	OWENS VALLEY CHECKERBLOOM	native	
Sidalcea diploscypha	MALVACEAE	FRINGED CHECKERBLOOM	native	
Sidalcea elegans	MALVACEAE	DEL NORTE CHECKERBLOOM	native	
Sidalcea gigantea	MALVACEAE	GIANT CHECKERBLOOM	native	
Sidalcea glaucescens	MALVACEAE	WAXY CHECKERBLOOM	native	
Sidalcea hartwegii	MALVACEAE	HARTWEG'S CHECKERBLOOM	native	
Sidalcea hickmanii	MALVACEAE		native	
Sidalcea hickmanii subsp. anomala	MALVACEAE	CUESTA PASS CHECKERBLOOM	native	
Sidalcea hickmanii subsp. hickmanii	MALVACEAE	HICKMAN'S CHECKERBLOOM	native	
Sidalcea hickmanii subsp. napensis	MALVACEAE	NAPA CHECKERBLOOM	native	
Sidalcea hickmanii subsp. parishii	MALVACEAE	PARISH'S CHECKERBLOOM	native	
Sidalcea hickmanii subsp. pillsburiensis	MALVACEAE	LAKE PILLSBURY CHECKERBLOOM	native	
Sidalcea hickmanii subsp. viridis	MALVACEAE	MARIN CHECKERBLOOM	native	
Sidalcea hirsuta	MALVACEAE	HAIRY CHECKERBLOOM	native	
Sidalcea keckii	MALVACEAE	KECK'S CHECKERBLOOM	native	
Sidalcea malachroides	MALVACEAE	MAPLE-LEAVED CHECKERBLOOM	native	
Sidalcea malviflora	MALVACEAE	CHECKERMALLOW	native	
Sidalcea malviflora subsp. californica	MALVACEAE	CALIFORNIA CHECKERBLOOM	native	
Sidalcea malviflora subsp. dolosa	MALVACEAE	BEAR VALLEY CHECKERBLOOM	native	
Sidalcea malviflora subsp. laciniata	MALVACEAE	GERANIUM-LEAVED CHECKERBLOOM	native	
Sidalcea malviflora subsp. malviflora	MALVACEAE		native	
Sidalcea malviflora subsp. patula	MALVACEAE	SISKIYOU CHECKERBLOOM	native	
Sidalcea malviflora subsp. purpurea	MALVACEAE	PURPLE-STEMMED CHECKERBLOOM	native	
Sidalcea malviflora subsp. rostrata	MALVACEAE	SEACLIFF CHECKERBLOOM	native	
Sidalcea multifida	MALVACEAE	CUT-LEAF CHECKERBLOOM	native	
Sidalcea neomexicana	MALVACEAE	SALT SPRING CHECKERBLOOM	native	
Sidalcea oregana	MALVACEAE		native	
Sidalcea oregana subsp. eximia	MALVACEAE	COAST CHECKERBLOOM	native	
Sidalcea oregana subsp. hydrophila	MALVACEAE	MARSH CHECKERBLOOM	native	
Sidalcea oregana subsp. oregana	MALVACEAE	OREGON CHECKERBLOOM	native	
Sidalcea oregana subsp. spicata	MALVACEAE		native	
Sidalcea oregana subsp. valida	MALVACEAE	KENWOOD MARSH CHECKERBLOOM	native	
Sidalcea pedata	MALVACEAE	BIRD-FOOT CHECKERBLOOM	native	
Sidalcea ranunculacea	MALVACEAE		native	
Sidalcea reptans	MALVACEAE		native	
Sidalcea robusta	MALVACEAE	BUTTE COUNTY CHECKERBLOOM	native	
Sidalcea setosa	MALVACEAE	BRISTLY CHECKERBLOOM	native	
Sidalcea sparsifolia	MALVACEAE	SOUTHERN CHECKERBLOOM	native	
Sidalcea stipularis	MALVACEAE	SCADDEN FLAT CHECKERBLOOM	native	
Sidotheca caryophylloides	POLYGONACEAE	CHICKWEED OXYTHECA	native	
Sidotheca emarginata	POLYGONACEAE	WHITE-MARGINED OXYTHECA	native	
Sidotheca trilobata	POLYGONACEAE	THREE-LOBED STARRY PUNCTUREBRACT	native	
Silene antirrhina	CARYOPHYLLACEAE	SLEEPY CATCHFLY	native	
Silene aperta	CARYOPHYLLACEAE	TULARE CAMPION	native	
Silene armeria	CARYOPHYLLACEAE	SWEET-WILLIAM CATCHFLY	naturalized	
Silene bernardina	CARYOPHYLLACEAE	PALMER'S CATCHFLY	native	
Silene bolanderi	CARYOPHYLLACEAE	BOLANDER'S CATCHFLY	native	
Silene bridgesii	CARYOPHYLLACEAE	BRIDGES' CATCHFLY	native	
Silene campanulata	CARYOPHYLLACEAE		native	
Silene campanulata subsp. campanulata	CARYOPHYLLACEAE	RED MOUNTAIN CATCHFLY	native	
Silene campanulata subsp. glandulosa	CARYOPHYLLACEAE	BELL CATCHFLY	native	
Silene coniflora	CARYOPHYLLACEAE	MULTINERVED CATCHFLY	naturalized	
Silene conoidea	CARYOPHYLLACEAE	LARGE SAND CATCHFLY	naturalized	
Silene dichotoma	CARYOPHYLLACEAE		naturalized	
Silene dichotoma subsp. dichotoma	CARYOPHYLLACEAE	FORKED CATCHFLY	naturalized	
Silene douglasii	CARYOPHYLLACEAE		native	
Silene douglasii var. douglasii	CARYOPHYLLACEAE	DOUGLAS' CATCHFLY	native	
Silene gallica	CARYOPHYLLACEAE	WINDMILL PINK	naturalized	
Silene grayi	CARYOPHYLLACEAE	GRAY'S CATCHFLY	native	
Silene hookeri	CARYOPHYLLACEAE	HOOKER'S CATCHFLY	native	
Silene invisa	CARYOPHYLLACEAE	SHORT-PETALED CAMPION	native	
Silene laciniata	CARYOPHYLLACEAE		native	
Silene laciniata subsp. californica	CARYOPHYLLACEAE	CALIFORNIA PINK	native	
Silene laciniata subsp. laciniata	CARYOPHYLLACEAE	MEXICAN PINK	native	
Silene latifolia	CARYOPHYLLACEAE	WHITE CAMPION	naturalized	
Silene lemmonii	CARYOPHYLLACEAE	LEMMON'S CATCHFLY	native	
Silene marmorensis	CARYOPHYLLACEAE	MARBLE MOUNTAIN CAMPION	native	
Silene menziesii	CARYOPHYLLACEAE	MENZIES' CATCHFLY	native	
Silene noctiflora	CARYOPHYLLACEAE	NIGHT-FLOWERING CATCHFLY	naturalized	
Silene nuda	CARYOPHYLLACEAE	STICKY CATCHFLY	native	
Silene occidentalis	CARYOPHYLLACEAE	WESTERN CAMPION	native	
Silene oregana	CARYOPHYLLACEAE	OREGON CAMPION	native	
Silene parishii	CARYOPHYLLACEAE	PARISH'S CATCHFLY	native	
Silene salmonacea	CARYOPHYLLACEAE	SALMON-FLOWERED CATCHFLY	native	
Silene sargentii	CARYOPHYLLACEAE	SARGENT'S CATCHFLY	native	
Silene scouleri	CARYOPHYLLACEAE		native	
Silene scouleri subsp. scouleri	CARYOPHYLLACEAE	SCOULER'S CATCHFLY	native	
Silene serpentinicola	CARYOPHYLLACEAE	SERPENTINE CATCHFLY	native	
Silene suksdorfii	CARYOPHYLLACEAE	SUKSDORF'S CATCHFLY	native	
Silene verecunda	CARYOPHYLLACEAE	SAN FRANCISCO CAMPION	native	
Silene vulgaris	CARYOPHYLLACEAE	BLADDER CAMPION	naturalized	
Silybum marianum	ASTERACEAE		naturalized	
Simmondsia chinensis	SIMMONDSIACEAE		native	
Sinapis alba	BRASSICACEAE	WHITE MUSTARD	naturalized	
Sinapis arvensis	BRASSICACEAE	CHARLOCK	naturalized	
Sisymbrium altissimum	BRASSICACEAE	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	WESTERN BLUE-EYED-GRASS	native	
Sisyrinchium californicum	IRIDACEAE	GOLDEN-EYED-GRASS	native	
Sisyrinchium elmeri	IRIDACEAE	ELMER'S BLUE-EYED-GRASS	native	
Sisyrinchium funereum	IRIDACEAE	DEATH VALLEY BLUE-EYED-GRASS	native	
Sisyrinchium halophilum	IRIDACEAE	NEVADA BLUE-EYED-GRASS	native	
Sisyrinchium hitchcockii	IRIDACEAE	HITCHCOCK'S BLUE-EYED-GRASS	native	
Sisyrinchium idahoense	IRIDACEAE	IDAHO BLUE-EYED-GRASS	native	
Sisyrinchium idahoense var. idahoense	IRIDACEAE		native	
Sisyrinchium idahoense var. occidentale	IRIDACEAE		native	
Sisyrinchium longipes	IRIDACEAE	TIMBERLAND BLUE-EYED-GRASS	native	
Sium suave	APIACEAE		native	
Smelowskia ovalis	BRASSICACEAE		native	
Smilax californica	SMILACACEAE		native	
Smilax jamesii	SMILACACEAE	ENGLISH PEAK GREENBRIER	native	
Solanum americanum	SOLANACEAE		native	
Solanum aviculare	SOLANACEAE		naturalized	
Solanum carolinense	SOLANACEAE	CAROLINA HORSE-NETTLE	naturalized	
Solanum douglasii	SOLANACEAE		native	
Solanum dulcamara	SOLANACEAE		naturalized	
Solanum elaeagnifolium	SOLANACEAE	WHITE HORSE-NETTLE	naturalized	
Solanum furcatum	SOLANACEAE		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		native	
Solanum physalifolium	SOLANACEAE		naturalized	
Solanum physalifolium var. nitidibaccatum	SOLANACEAE		naturalized	
Solanum rostratum	SOLANACEAE	BUFFALO BERRY	naturalized	
Solanum sisymbriifolium	SOLANACEAE		naturalized	
Solanum triflorum	SOLANACEAE		naturalized	
Solanum umbelliferum	SOLANACEAE		native	
Solanum wallacei	SOLANACEAE	WALLACE'S NIGHTSHADE	native	
Solanum xanti	SOLANACEAE		native	
Soleirolia soleirolii	URTICACEAE		naturalized	
Solidago altissima	ASTERACEAE		naturalized	
Solidago altissima subsp. altissima	ASTERACEAE	LATE GOLDENROD	naturalized	
Solidago confinis	ASTERACEAE	SOUTHERN GOLDENROD	native	
Solidago elongata	ASTERACEAE	WEST COAST CANADA GOLDENROD	native	
Solidago guiradonis	ASTERACEAE	GUIRADO'S GOLDENROD	native	
Solidago lepida var. salebrosa	ASTERACEAE	WESTERN GOLDENROD	native	
Solidago multiradiata	ASTERACEAE	NORTHERN GOLDENROD	native	
Solidago spathulata	ASTERACEAE	COAST GOLDENROD	native	
Solidago spectabilis	ASTERACEAE	SHOWY GOLDENROD	native	
Solidago velutina	ASTERACEAE	VELVETY GOLDENROD	native	
Solidago velutina subsp. californica	ASTERACEAE	CALIFORNIA GOLDENROD	native	
Solidago velutina subsp. sparsiflora	ASTERACEAE		native	
Soliva sessilis	ASTERACEAE		naturalized	
Sonchus arvensis	ASTERACEAE	PERENNIAL SOW THISTLE	naturalized	
Sonchus arvensis subsp. uliginosus	ASTERACEAE		naturalized	
Sonchus asper	ASTERACEAE		naturalized	
Sonchus asper subsp. asper	ASTERACEAE	PRICKLY SOW THISTLE	naturalized	
Sonchus oleraceus	ASTERACEAE	COMMON SOW THISTLE	naturalized	
Sonchus tenerrimus	ASTERACEAE		naturalized	
Sorbus californica	ROSACEAE	CALIFORNIA MOUNTAIN ASH	native	
Sorbus scopulina	ROSACEAE	CASCADE MOUNTAIN ASH	native	
Sorbus sitchensis	ROSACEAE		native	
Sorbus sitchensis var. grayi	ROSACEAE	GRAY'S MOUNTAIN ASH	native	
Sorbus sitchensis var. sitchensis	ROSACEAE	SITKA MOUNTAIN ASH	native	
Sorghum bicolor	POACEAE	SORGHUM	naturalized	
Sorghum halepense	POACEAE	JOHNSON GRASS	naturalized	
Sparganium angustifolium	TYPHACEAE	NARROW-LEAVED BUR-REED	native	
Sparganium emersum	TYPHACEAE		native	
Sparganium eurycarpum	TYPHACEAE		native	
Sparganium eurycarpum var. eurycarpum	TYPHACEAE		native	
Sparganium eurycarpum var. greenei	TYPHACEAE		native	
Sparganium natans	TYPHACEAE	SMALL BUR-REED	native	
Spartina alterniflora	POACEAE	SALT-WATER CORD GRASS	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	STARWORT	naturalized	
Spergularia atrosperma	CARYOPHYLLACEAE	BLACK SEED SAND-SPURREY	native	
Spergularia bocconi	CARYOPHYLLACEAE	BOCCONE'S SAND-SPURREY	naturalized	
Spergularia canadensis	CARYOPHYLLACEAE		native	
Spergularia canadensis var. occidentalis	CARYOPHYLLACEAE	WESTERN SAND-SPURREY	native	
Spergularia macrotheca	CARYOPHYLLACEAE	STICKY SAND-SPURREY	native	
Spergularia macrotheca var. leucantha	CARYOPHYLLACEAE		native	
Spergularia macrotheca var. longistyla	CARYOPHYLLACEAE		native	
Spergularia macrotheca var. macrotheca	CARYOPHYLLACEAE		native	
Spergularia marina	CARYOPHYLLACEAE	SALTMARSH SAND-SPURREY	native	
Spergularia media	CARYOPHYLLACEAE		naturalized	
Spergularia media var. media	CARYOPHYLLACEAE	GREATER SEA-SPURREY	naturalized	
Spergularia platensis	CARYOPHYLLACEAE		naturalized	
Spergularia platensis var. platensis	CARYOPHYLLACEAE	LA PLATA SAND-SPURREY	naturalized	
Spergularia rubra	CARYOPHYLLACEAE	RED SAND-SPURREY	naturalized	
Spergularia villosa	CARYOPHYLLACEAE	HAIRY SAND-SPURREY	naturalized	
Spermolepis echinata	APIACEAE	BRISTLY SCALESEED	native	
Sphaeralcea ambigua	MALVACEAE		native	
Sphaeralcea ambigua var. ambigua	MALVACEAE	APRICOT MALLOW	native	
Sphaeralcea ambigua var. rosacea	MALVACEAE	PARISH MALLOW	native	
Sphaeralcea ambigua var. rugosa	MALVACEAE	ROUGHLEAF APRICOT MALLOW	native	
Sphaeralcea angustifolia	MALVACEAE	NARROW-LEAVED GLOBEMALLOW	native	
Sphaeralcea coulteri	MALVACEAE	COULTER'S GLOBEMALLOW	native	
Sphaeralcea emoryi	MALVACEAE		native	
Sphaeralcea emoryi var. emoryi	MALVACEAE	EMORY'S GLOBEMALLOW	native	
Sphaeralcea grossulariifolia	MALVACEAE	GOOSEBERRY-LEAVED GLOBEMALLOW	native	
Sphaeralcea munroana	MALVACEAE	MUNRO'S DESERT-MALLOW	native	
Sphaeralcea orcuttii	MALVACEAE	CARRIZO MALLOW	native	
Sphaeralcea rusbyi	MALVACEAE		native	
Sphaeralcea rusbyi var. eremicola	MALVACEAE	RUSBY'S DESERT-MALLOW	native	
Sphaeromeria cana	ASTERACEAE	GRAY CHICKENSAGE	native	
Sphaeromeria potentilloides	ASTERACEAE	FIVEFINGER CHICKENSAGE	native	
Sphaeromeria potentilloides var. nitrophila	ASTERACEAE	ALKALI TANSY-SAGE	native	
Sphaeromeria potentilloides var. potentilloides	ASTERACEAE		native	
Sphenopholis obtusata	POACEAE	PRAIRIE WEDGE GRASS	native	
Sphenosciadium capitellatum	APIACEAE	RANGER'S BUTTONS	native	
Spinacia oleracea	CHENOPODIACEAE		naturalized	acceptance uncertain
Spiraea douglasii	ROSACEAE		native	
Spiraea splendens	ROSACEAE		native	
Spiranthes porrifolia	ORCHIDACEAE		native	
Spiranthes romanzoffiana	ORCHIDACEAE		native	
Spirodela polyrhiza	ARACEAE		native	
Sporobolus airoides	POACEAE	ALKALI SACATON	native	
Sporobolus contractus	POACEAE	SPIKE DROPSEED	native	
Sporobolus cryptandrus	POACEAE	SAND DROPSEED	native	
Sporobolus flexuosus	POACEAE	MESA DROPSEED	native	
Sporobolus indicus	POACEAE	SMUT GRASS	naturalized	
Sporobolus vaginiflorus	POACEAE	POVERTY DROPSEED	naturalized	
Sporobolus wrightii	POACEAE	BIG SACATON	native	
Stachys ajugoides	LAMIACEAE		native	
Stachys albens	LAMIACEAE		native	
Stachys bergii	LAMIACEAE		native	
Stachys bullata	LAMIACEAE		native	
Stachys chamissonis	LAMIACEAE		native	
Stachys mexicana	LAMIACEAE		native	
Stachys pilosa	LAMIACEAE	PRAIRIE WOUNDWORT	native	
Stachys pycnantha	LAMIACEAE	SHORT-SPIKED HEDGE NETTLE	native	
Stachys rigida	LAMIACEAE		native	
Stachys rigida var. quercetorum	LAMIACEAE		native	
Stachys rigida var. rigida	LAMIACEAE		native	
Stachys stebbinsii	LAMIACEAE		native	
Stachys stricta	LAMIACEAE		native	
Stanleya elata	BRASSICACEAE		native	
Stanleya pinnata	BRASSICACEAE		native	
Stanleya pinnata var. pinnata	BRASSICACEAE		native	
Stanleya viridiflora	BRASSICACEAE	GREEN-FLOWERED PRINCE'S PLUME	native	
Staphylea bolanderi	STAPHYLEACEAE	SIERRA BLADDERNUT	native	
Stebbinsoseris decipiens	ASTERACEAE	SANTA CRUZ MICROSERIS	native	
Stebbinsoseris heterocarpa	ASTERACEAE	GRASSLAND SILVERPUFFS	native	
Stellaria borealis	CARYOPHYLLACEAE		native	
Stellaria borealis subsp. sitchana	CARYOPHYLLACEAE	SITKA STARWORT	native	
Stellaria calycantha	CARYOPHYLLACEAE	NORTHERN STARWORT	native	
Stellaria crispa	CARYOPHYLLACEAE	CRISP STARWORT	native	
Stellaria graminea	CARYOPHYLLACEAE	COMMON STARWORT	naturalized	
Stellaria littoralis	CARYOPHYLLACEAE	BEACH STARWORT	native	
Stellaria longifolia	CARYOPHYLLACEAE	LONG-LEAVED STARWORT	native	
Stellaria longipes	CARYOPHYLLACEAE		native	
Stellaria longipes subsp. longipes	CARYOPHYLLACEAE	GOLDIE'S STARWORT	native	
Stellaria media	CARYOPHYLLACEAE	COMMON CHICKWEED	naturalized	
Stellaria neglecta	CARYOPHYLLACEAE	GREATER CHICKWEED	naturalized	
Stellaria nitens	CARYOPHYLLACEAE	SHINING CHICKWEED	native	
Stellaria obtusa	CARYOPHYLLACEAE	ROCKY MOUNTAIN STARWORT	native	
Stellaria pallida	CARYOPHYLLACEAE	LESSER CHICKWEED	naturalized	
Stellaria umbellata	CARYOPHYLLACEAE	UMBELLATE STARWORT	native	
Stemodia durantifolia	PLANTAGINACEAE	PURPLE STEMODIA	native	
Stenanthium occidentale	MELANTHIACEAE		native	
Stenotaphrum secundatum	POACEAE	SAINT AUGUSTINE GRASS	naturalized	
Stenotus acaulis	ASTERACEAE	STEMLESS GOLDENWEED	native	
Stenotus lanuginosus	ASTERACEAE		native	
Stenotus lanuginosus var. lanuginosus	ASTERACEAE	WOOLLY STENOTUS	native	
Stephanomeria cichoriacea	ASTERACEAE	CHICORYLEAF WIRE-LETTUCE	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	NARROW-LEAVED 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	
Stipa arida	POACEAE	MORMON NEEDLE GRASS	native	
Stipa brachychaeta	POACEAE	PUNA NEEDLE GRASS	naturalized	
Stipa capensis	POACEAE	CAPE RICE GRASS	naturalized	
Stipa cernua	POACEAE	NODDING NEEDLE GRASS	native	
Stipa chaetophora	POACEAE	STIPOID RICE GRASS	naturalized	
Stipa comata	POACEAE	NEEDLE-AND-THREAD	native	
Stipa comata var. comata	POACEAE		native	
Stipa comata var. intermedia	POACEAE		native	
Stipa coronata	POACEAE	CRESTED NEEDLE GRASS	native	
Stipa diegoensis	POACEAE	SAN DIEGO NEEDLE GRASS	native	
Stipa divaricata	POACEAE	SMALL-FLOWERED RICE GRASS	native	
Stipa exigua	POACEAE	LITTLE RICE GRASS	native	
Stipa hymenoides	POACEAE	SAND RICE GRASS	native	
Stipa kingii	POACEAE	KING'S RICE GRASS	native	
Stipa latiglumis	POACEAE	WIDE-GLUMED NEEDLE GRASS	native	
Stipa lemmonii	POACEAE	LEMMON'S NEEDLE GRASS	native	
Stipa lemmonii var. lemmonii	POACEAE		native	
Stipa lemmonii var. pubescens	POACEAE		native	
Stipa lepida	POACEAE	FOOTHILL NEEDLE GRASS	native	
Stipa lettermanii	POACEAE	LETTERMAN'S NEEDLE GRASS	native	
Stipa manicata	POACEAE	ANDEAN TUSSOCK GRASS	naturalized	
Stipa mauritanica	POACEAE	MAURITANIAN GRASS	naturalized	
Stipa miliacea	POACEAE		naturalized	
Stipa miliacea var. miliacea	POACEAE	SMILO GRASS	naturalized	
Stipa nelsonii var. dorei	POACEAE	MOUNTAIN NEEDLE GRASS	native	
Stipa nevadensis	POACEAE	NEVADA NEEDLE GRASS	native	
Stipa occidentalis	POACEAE		native	
Stipa occidentalis var. californica	POACEAE	CALIFORNIA NEEDLE GRASS	native	
Stipa occidentalis var. occidentalis	POACEAE	WESTERN NEEDLE GRASS	native	
Stipa occidentalis var. pubescens	POACEAE	COMMON WESTERN NEEDLE GRASS	native	
Stipa parishii	POACEAE		native	
Stipa parishii var. parishii	POACEAE		native	
Stipa pinetorum	POACEAE	PINEWOODS NEEDLE GRASS	native	
Stipa pulchra	POACEAE	PURPLE NEEDLE GRASS	native	
Stipa purpurata	POACEAE	BRISTLY NEEDLE GRASS	naturalized	
Stipa speciosa	POACEAE	DESERT NEEDLE GRASS	native	
Stipa stillmanii	POACEAE	STILLMAN'S NEEDLE GRASS	native	
Stipa thurberiana	POACEAE	THURBER'S NEEDLE GRASS	native	
Stipa webberi	POACEAE	WEBBER'S NEEDLE GRASS	native	
Streptanthella longirostris	BRASSICACEAE		native	
Streptanthus barbatus	BRASSICACEAE		native	
Streptanthus barbiger	BRASSICACEAE	BEARDED JEWELFLOWER	native	
Streptanthus batrachopus	BRASSICACEAE	TAMALPAIS JEWELFLOWER	native	
Streptanthus bernardinus	BRASSICACEAE	LAGUNA MOUNTAINS JEWELFLOWER	native	
Streptanthus brachiatus	BRASSICACEAE		native	
Streptanthus breweri	BRASSICACEAE		native	
Streptanthus callistus	BRASSICACEAE	MOUNT HAMILTON JEWELFLOWER	native	
Streptanthus campestris	BRASSICACEAE	SOUTHERN JEWELFLOWER	native	
Streptanthus cordatus	BRASSICACEAE		native	
Streptanthus cordatus var. cordatus	BRASSICACEAE		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		native	
Streptanthus glandulosus subsp. albidus	BRASSICACEAE	METCALF CANYON JEWELFLOWER	native	
Streptanthus glandulosus subsp. glandulosus	BRASSICACEAE		native	
Streptanthus glandulosus subsp. hoffmanii	BRASSICACEAE	HOFFMAN'S BRISTLY JEWELFLOWER	native	
Streptanthus glandulosus subsp. niger	BRASSICACEAE	TIBURON JEWELFLOWER	native	
Streptanthus glandulosus subsp. pulchellus	BRASSICACEAE	MOUNT TAMALPAIS BRISTLY JEWELFLOWER	native	
Streptanthus glandulosus subsp. secundus	BRASSICACEAE		native	
Streptanthus glandulosus subsp. sonomensis	BRASSICACEAE	UNCOMMON JEWELFLOWER	native	
Streptanthus gracilis	BRASSICACEAE	ALPINE JEWELFLOWER	native	
Streptanthus hesperidis	BRASSICACEAE		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		native	
Streptanthus insignis subsp. lyonii	BRASSICACEAE	ARBURUA RANCH JEWELFLOWER	native	
Streptanthus longisiliquus	BRASSICACEAE	LONG-FRUIT JEWELFLOWER	native	
Streptanthus morrisonii	BRASSICACEAE		native	
Streptanthus niger	BRASSICACEAE		native	
Streptanthus oblanceolatus	BRASSICACEAE	TRINITY RIVER JEWELFLOWER	native	
Streptanthus oliganthus	BRASSICACEAE	MASONIC MOUNTAIN JEWELFLOWER	native	
Streptanthus polygaloides	BRASSICACEAE	MILKWORT JEWELFLOWER	native	
Streptanthus tortuosus	BRASSICACEAE	MOUNTAIN JEWELFLOWER	native	
Streptanthus vernalis	BRASSICACEAE	EARLY JEWELFLOWER	native	
Streptanthus vimineus	BRASSICACEAE		native	
Streptopus amplexifolius	LILIACEAE		native	
Streptopus amplexifolius var. americanus	LILIACEAE		native	
Strigosella africana	BRASSICACEAE		naturalized	
Stuckenia filiformis	POTAMOGETONACEAE		native	
Stuckenia filiformis subsp. alpina	POTAMOGETONACEAE	SLENDER-LEAVED PONDWEED	native	
Stuckenia pectinata	POTAMOGETONACEAE	FENNEL-LEAF PONDWEED	native	
Stuckenia striata	POTAMOGETONACEAE	NEVADA PONDWEED	native	
Stutzia covillei	CHENOPODIACEAE		native	
Stylocline citroleum	ASTERACEAE	OIL NESTSTRAW	native	
Stylocline gnaphaloides	ASTERACEAE	EVERLASTING NESTSTRAW	native	
Stylocline intertexta	ASTERACEAE	MOJAVE NESTSTRAW	native	
Stylocline masonii	ASTERACEAE	MASON'S NESTSTRAW	native	
Stylocline micropoides	ASTERACEAE	WOOLLYHEAD FANBRACT	native	
Stylocline psilocarphoides	ASTERACEAE	PECK NESTSTRAW	native	
Stylocline sonorensis	ASTERACEAE	MESQUITE NESTSTRAW	native	
Styrax redivivus	STYRACACEAE		native	
Suaeda calceoliformis	CHENOPODIACEAE	HORNED SEABLITE	native	
Suaeda californica	CHENOPODIACEAE	CALIFORNIA SEABLITE	native	
Suaeda esteroa	CHENOPODIACEAE	ESTUARY SEABLITE	native	
Suaeda nigra	CHENOPODIACEAE	BUSH SEEPWEED	native	
Suaeda occidentalis	CHENOPODIACEAE	WESTERN SEABLITE	native	
Suaeda taxifolia	CHENOPODIACEAE	WOOLLY SEABLITE	native	
Subularia aquatica	BRASSICACEAE		native	
Subularia aquatica subsp. americana	BRASSICACEAE	WATER AWLWORT	native	
Swallenia alexandrae	POACEAE	EUREKA VALLEY DUNE GRASS	native	
Swertia perennis	GENTIANACEAE	STAR SWERTIA	native	
Symphoricarpos albus	CAPRIFOLIACEAE		native	
Symphoricarpos albus var. laevigatus	CAPRIFOLIACEAE	SNOWBERRY	native	
Symphoricarpos longiflorus	CAPRIFOLIACEAE	FRAGRANT SNOWBERRY	native	
Symphoricarpos mollis	CAPRIFOLIACEAE	TRIP VINE	native	
Symphoricarpos rotundifolius	CAPRIFOLIACEAE		native	
Symphoricarpos rotundifolius var. parishii	CAPRIFOLIACEAE		native	
Symphoricarpos rotundifolius var. rotundifolius	CAPRIFOLIACEAE		native	
Symphyotrichum ascendens	ASTERACEAE		native	
Symphyotrichum bracteolatum	ASTERACEAE		native	
Symphyotrichum campestre	ASTERACEAE		native	
Symphyotrichum chilense	ASTERACEAE		native	
Symphyotrichum defoliatum	ASTERACEAE	SAN BERNARDINO ASTER	native	
Symphyotrichum foliaceum	ASTERACEAE		native	
Symphyotrichum foliaceum var. apricum	ASTERACEAE		native	
Symphyotrichum foliaceum var. parryi	ASTERACEAE		native	
Symphyotrichum frondosum	ASTERACEAE		native	
Symphyotrichum greatae	ASTERACEAE	GREATA'S ASTER	native	
Symphyotrichum lanceolatum	ASTERACEAE		native	
Symphyotrichum lanceolatum var. hesperium	ASTERACEAE		native	
Symphyotrichum lentum	ASTERACEAE	SUISUN MARSH ASTER	native	
Symphyotrichum spathulatum	ASTERACEAE		native	
Symphyotrichum spathulatum var. intermedium	ASTERACEAE		native	
Symphyotrichum spathulatum var. spathulatum	ASTERACEAE		native	
Symphyotrichum spathulatum var. yosemitanum	ASTERACEAE	WESTERN BOG ASTER	native	
Symphyotrichum subspicatum	ASTERACEAE	DOUGLAS ASTER	native	
Symphyotrichum subulatum	ASTERACEAE	ANNUAL SALTMARSH ASTER	native	
Symphyotrichum subulatum var. elongatum	ASTERACEAE		naturalized	
Symphyotrichum subulatum var. parviflorum	ASTERACEAE		native	
Symphyotrichum subulatum var. squamatum	ASTERACEAE		naturalized	
Symphytum	BORAGINACEAE	RUSSIAN COMFREY	naturalized	
Synthyris cordata	PLANTAGINACEAE	SERPENTINE SNOW QUEEN	native	
Synthyris missurica	PLANTAGINACEAE		native	
Synthyris missurica subsp. missurica	PLANTAGINACEAE	KITTENTAIL	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	
Tagetes minuta	ASTERACEAE	WILD MARIGOLD	naturalized	
Tamarix aphylla	TAMARICACEAE	ATHEL	naturalized	
Tamarix chinensis	TAMARICACEAE	FIVESTAMEN TAMARISK	naturalized	
Tamarix gallica	TAMARICACEAE	FRENCH TAMARISK	naturalized	
Tamarix parviflora	TAMARICACEAE	SMALLFLOWER TAMARISK	naturalized	
Tamarix ramosissima	TAMARICACEAE	SALTCEDAR	naturalized	
Tanacetum bipinnatum	ASTERACEAE	DUNE TANSY	native	
Tanacetum parthenium	ASTERACEAE	FEVERFEW	naturalized	
Tanacetum vulgare	ASTERACEAE	COMMON TANSY	naturalized	
Taraxacum californicum	ASTERACEAE	CALIFORNIA DANDELION	native	
Taraxacum ceratophorum	ASTERACEAE	HORNED DANDELION	native	
Taraxacum erythrospermum	ASTERACEAE	RED-SEEDED DANDELION	naturalized	
Taraxacum officinale	ASTERACEAE	COMMON DANDELION	naturalized	
Taraxia ovata	ONAGRACEAE		native	
Taraxia subacaulis	ONAGRACEAE		native	
Taraxia tanacetifolia	ONAGRACEAE		native	
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	
Tellima grandiflora	SAXIFRAGACEAE		native	
Tetracoccus dioicus	PICRODENDRACEAE	PARRY'S TETRACOCCUS	native	
Tetracoccus hallii	PICRODENDRACEAE	HALL'S TETRACOCCUS	native	
Tetracoccus ilicifolius	PICRODENDRACEAE	HOLLY-LEAVED TETRACOCCUS	native	
Tetradymia argyraea	ASTERACEAE	STRIPED HORSEBRUSH	native	
Tetradymia axillaris	ASTERACEAE		native	
Tetradymia axillaris var. axillaris	ASTERACEAE		native	
Tetradymia axillaris var. longispina	ASTERACEAE		native	
Tetradymia canescens	ASTERACEAE		native	
Tetradymia comosa	ASTERACEAE		native	
Tetradymia glabrata	ASTERACEAE		native	
Tetradymia spinosa	ASTERACEAE		native	
Tetradymia stenolepis	ASTERACEAE		native	
Tetradymia tetrameres	ASTERACEAE	DUNE HORSEBRUSH	native	
Tetragonia tetragonioides	AIZOACEAE	NEW ZEALAND SPINACH	naturalized	
Tetraneuris acaulis	ASTERACEAE		native	
Tetraneuris acaulis var. arizonica	ASTERACEAE		native	
Tetrapteron graciliflorum	ONAGRACEAE	HILL SUN CUP	native	
Tetrapteron palmeri	ONAGRACEAE		native	
Teucrium cubense	LAMIACEAE		native	
Teucrium cubense subsp. depressum	LAMIACEAE	DWARF GERMANDER	native	
Teucrium glandulosum	LAMIACEAE	DESERT GERMANDER	native	
Thalictrum alpinum	RANUNCULACEAE	ARCTIC MEADOW-RUE	native	
Thalictrum fendleri	RANUNCULACEAE		native	
Thalictrum fendleri var. fendleri	RANUNCULACEAE		native	
Thalictrum fendleri var. polycarpum	RANUNCULACEAE		native	
Thalictrum occidentale	RANUNCULACEAE		native	
Thalictrum sparsiflorum	RANUNCULACEAE		native	
Thamnosma montana	RUTACEAE		native	
Thelypodium brachycarpum	BRASSICACEAE	SHORT-PODDED THELYPODIUM	native	
Thelypodium crispum	BRASSICACEAE		native	
Thelypodium flexuosum	BRASSICACEAE		native	
Thelypodium howellii	BRASSICACEAE		native	
Thelypodium howellii subsp. howellii	BRASSICACEAE	HOWELL'S THELYPODIUM	native	
Thelypodium integrifolium	BRASSICACEAE		native	
Thelypodium integrifolium subsp. affine	BRASSICACEAE		native	
Thelypodium integrifolium subsp. complanatum	BRASSICACEAE	FOXTAIL THELYPODIUM	native	
Thelypodium laciniatum	BRASSICACEAE		native	
Thelypodium milleflorum	BRASSICACEAE	MANY-FLOWERED THELYPODIUM	native	
Thelypodium stenopetalum	BRASSICACEAE	SLENDER-PETALED THELYPODIUM	native	
Thelypteris nevadensis	THELYPTERIDACEAE	NEVADA MARSH FERN	native	
Thelypteris puberula	THELYPTERIDACEAE		native	
Thelypteris puberula var. sonorensis	THELYPTERIDACEAE	SONORAN MAIDEN FERN	native	
Thermopsis californica	FABACEAE		native	
Thermopsis californica var. argentata	FABACEAE	SILVERY FALSE-LUPINE	native	
Thermopsis californica var. californica	FABACEAE		native	
Thermopsis californica var. semota	FABACEAE	VELVETY FALSE-LUPINE	native	
Thermopsis gracilis	FABACEAE		native	
Thermopsis macrophylla	FABACEAE	SANTA YNEZ FALSE-LUPINE	native	
Thermopsis robusta	FABACEAE	ROBUST FALSE-LUPINE	native	
Thlaspi arvense	BRASSICACEAE		naturalized	
Thuja plicata	CUPRESSACEAE	CANOE CEDAR	native	
Thymophylla pentachaeta	ASTERACEAE		native	
Thymophylla pentachaeta var. belenidium	ASTERACEAE		native	
Thysanocarpus conchuliferus	BRASSICACEAE	SANTA CRUZ ISLAND FRINGEPOD	native	
Thysanocarpus curvipes	BRASSICACEAE		native	
Thysanocarpus curvipes subsp. amplectens	BRASSICACEAE		native	
Thysanocarpus curvipes subsp. curvipes	BRASSICACEAE		native	
Thysanocarpus curvipes subsp. elegans	BRASSICACEAE		native	
Thysanocarpus curvipes subsp. eradiatus	BRASSICACEAE		native	
Thysanocarpus curvipes subsp. longistylus	BRASSICACEAE		native	
Thysanocarpus desertorum	BRASSICACEAE		native	
Thysanocarpus laciniatus	BRASSICACEAE		native	
Thysanocarpus radians	BRASSICACEAE		native	
Thysanocarpus rigidus	BRASSICACEAE		native	
Tiarella trifoliata	SAXIFRAGACEAE	LACE FLOWER	native	
Tiarella trifoliata var. trifoliata	SAXIFRAGACEAE		native	
Tiarella trifoliata var. unifoliata	SAXIFRAGACEAE		native	
Tidestromia lanuginosa	AMARANTHACEAE	WOOLLY TIDESTROMIA	native	
Tidestromia suffruticosa var. oblongifolia	AMARANTHACEAE	HONEYSWEET	native	
Tiquilia canescens	BORAGINACEAE	SHRUBBY TIQUILIA	native	
Tiquilia canescens var. canescens	BORAGINACEAE		native	
Tiquilia canescens var. pulchella	BORAGINACEAE		native	
Tiquilia nuttallii	BORAGINACEAE	ANNUAL TIQUILIA	native	
Tiquilia palmeri	BORAGINACEAE	PALMER'S TIQUILIA	native	
Tiquilia plicata	BORAGINACEAE	FAN-LEAVED TIQUILIA	native	
Tolmiea diplomenziesii	SAXIFRAGACEAE		native	
Tolpis barbata	ASTERACEAE		naturalized	
Tonella tenella	PLANTAGINACEAE		native	
Tonestus eximius	ASTERACEAE	TAHOE TONESTUS	native	
Tonestus lyallii	ASTERACEAE	LYALL'S TONESTUS	native	
Tonestus peirsonii	ASTERACEAE	PEIRSON'S TONESTUS	native	
Torilis arvensis	APIACEAE	TALL SOCK-DESTROYER	naturalized	
Torilis nodosa	APIACEAE	SHORT SOCK-DESTROYER	naturalized	
Torreya californica	TAXACEAE	CALIFORNIA-NUTMEG	native	
Torreyochloa erecta	POACEAE		native	
Torreyochloa pallida	POACEAE		native	
Torreyochloa pallida var. pauciflora	POACEAE	WEAK MANNA GRASS	native	
Townsendia condensata	ASTERACEAE	CUSHION TOWNSENDIA	native	
Townsendia leptotes	ASTERACEAE	SLENDER TOWNSENDIA	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		naturalized	
Tragia ramosa	EUPHORBIACEAE	DESERT TRAGIA	native	
Tragopogon dubius	ASTERACEAE		naturalized	
Tragopogon porrifolius	ASTERACEAE	OYSTER PLANT	naturalized	
Tragopogon pratensis	ASTERACEAE	MEADOW SALSIFY	naturalized	
Transberingia bursifolia subsp. virgata	BRASSICACEAE	VIRGATE HALIMOLOBOS	native	
Trautvetteria caroliniensis	RANUNCULACEAE		native	
Triadica sebifera	EUPHORBIACEAE	CHINESE TALLOWTREE	naturalized	
Triantha occidentalis	TOFIELDIACEAE		native	
Triantha occidentalis subsp. occidentalis	TOFIELDIACEAE		native	
Trianthema portulacastrum	AIZOACEAE		native	
Tribolium obliterum	POACEAE		naturalized	
Tribulus terrestris	ZYGOPHYLLACEAE		naturalized	
Tricardia watsonii	BORAGINACEAE	THREE HEARTS	native	
Trichocoronis wrightii	ASTERACEAE		native	
Trichocoronis wrightii var. wrightii	ASTERACEAE	WRIGHT'S TRICHOCORONIS	native	
Trichophorum clementis	CYPERACEAE		native	
Trichophorum pumilum	CYPERACEAE	LITTLE BULRUSH	native	
Trichoptilium incisum	ASTERACEAE		native	
Trichostema austromontanum	LAMIACEAE		native	
Trichostema austromontanum subsp. austromontanum	LAMIACEAE		native	
Trichostema austromontanum subsp. compactum	LAMIACEAE	HIDDEN LAKE BLUECURLS	native	
Trichostema lanatum	LAMIACEAE	WOOLLY BLUE CURLS	native	
Trichostema lanceolatum	LAMIACEAE	VINEGAR WEED	native	
Trichostema laxum	LAMIACEAE	TURPENTINE WEED	native	
Trichostema micranthum	LAMIACEAE	SMALL-FLOWERED BLUECURLS	native	
Trichostema oblongum	LAMIACEAE		native	
Trichostema ovatum	LAMIACEAE	SAN JOAQUIN BLUECURLS	native	
Trichostema parishii	LAMIACEAE		native	
Trichostema rubisepalum	LAMIACEAE	HERNANDEZ BLUECURLS	native	
Trichostema ruygtii	LAMIACEAE	NAPA BLUECURLS	native	
Trichostema simulatum	LAMIACEAE		native	
Tridens muticus	POACEAE		native	
Tridens muticus var. muticus	POACEAE	SLIM TRIDENS	native	
Trientalis europaea	MYRSINACEAE	ARCTIC STARFLOWER	native	
Trientalis latifolia	MYRSINACEAE		native	
Trifolium albopurpureum	FABACEAE		native	
Trifolium amoenum	FABACEAE	TWO-FORK CLOVER	native	
Trifolium andersonii	FABACEAE		native	
Trifolium andersonii subsp. andersonii	FABACEAE	ANDERSON'S CLOVER	native	
Trifolium andersonii subsp. beatleyae	FABACEAE	BEATLEY'S FIVE-LEAVED CLOVER	native	
Trifolium angustifolium	FABACEAE	NARROW-LEAVED CLOVER	naturalized	
Trifolium arvense	FABACEAE	RABBITFOOT CLOVER	naturalized	
Trifolium aureum	FABACEAE	LARGE HOP CLOVER	naturalized	
Trifolium barbigerum	FABACEAE	BEARDED CLOVER	native	
Trifolium beckwithii	FABACEAE	BECKWITH'S CLOVER	native	
Trifolium bifidum	FABACEAE	PINOLE CLOVER	native	
Trifolium bifidum var. bifidum	FABACEAE		native	
Trifolium bifidum var. decipiens	FABACEAE		native	
Trifolium bolanderi	FABACEAE	BOLANDER'S CLOVER	native	
Trifolium breweri	FABACEAE	BREWER'S CLOVER	native	
Trifolium buckwestiorum	FABACEAE	SANTA CRUZ CLOVER	native	
Trifolium campestre	FABACEAE	HOP CLOVER	naturalized	
Trifolium cernuum	FABACEAE	NODDING CLOVER	naturalized	
Trifolium ciliolatum	FABACEAE	FOOTHILL CLOVER	native	
Trifolium cyathiferum	FABACEAE	BOWL CLOVER	native	
Trifolium depauperatum	FABACEAE		native	
Trifolium depauperatum var. amplectens	FABACEAE	PALE SACK CLOVER	native	
Trifolium depauperatum var. depauperatum	FABACEAE	DWARF SACK CLOVER	native	
Trifolium depauperatum var. truncatum	FABACEAE	TRUNCATE SACK CLOVER	native	
Trifolium dichotomum	FABACEAE		native	
Trifolium dubium	FABACEAE	LITTLE HOP CLOVER	naturalized	
Trifolium eriocephalum	FABACEAE		native	
Trifolium eriocephalum subsp. eriocephalum	FABACEAE	HAIRY HEAD CLOVER	native	
Trifolium fragiferum	FABACEAE	STRAWBERRY CLOVER	naturalized	
Trifolium fucatum	FABACEAE	BULL CLOVER	native	
Trifolium glomeratum	FABACEAE	CLUSTERED CLOVER	naturalized	
Trifolium gracilentum	FABACEAE	PINPOINT CLOVER	native	
Trifolium grayi	FABACEAE	GRAY'S CLOVER	native	
Trifolium gymnocarpon	FABACEAE		native	
Trifolium gymnocarpon subsp. plummerae	FABACEAE	PLUMMER'S CLOVER	native	
Trifolium hirtum	FABACEAE	ROSE CLOVER	naturalized	
Trifolium howellii	FABACEAE	HOWELL'S CLOVER	native	
Trifolium hybridum	FABACEAE	ALSIKE CLOVER	naturalized	
Trifolium hydrophilum	FABACEAE	SALINE CLOVER	native	
Trifolium incarnatum	FABACEAE	CRIMSON CLOVER	naturalized	
Trifolium jokerstii	FABACEAE	BUTTE COUNTY GOLDEN CLOVER	native	
Trifolium kingii	FABACEAE		native	
Trifolium kingii subsp. dedeckerae	FABACEAE	DEDECKER'S CLOVER	native	
Trifolium lemmonii	FABACEAE	LEMMON'S CLOVER	native	
Trifolium longipes	FABACEAE	LONG-STALKED CLOVER	native	
Trifolium longipes subsp. atrorubens	FABACEAE		native	
Trifolium longipes subsp. elmeri	FABACEAE	ELMER'S CLOVER	native	
Trifolium longipes subsp. hansenii	FABACEAE		native	
Trifolium longipes subsp. multipedunculatum	FABACEAE		native	
Trifolium longipes subsp. oreganum	FABACEAE		native	
Trifolium longipes subsp. shastense	FABACEAE		native	
Trifolium macraei	FABACEAE	MACRAE'S CLOVER	native	
Trifolium macrocephalum	FABACEAE	LARGE-HEAD CLOVER	native	
Trifolium microcephalum	FABACEAE	SMALL-HEAD CLOVER	native	
Trifolium microdon	FABACEAE	THIMBLE CLOVER	native	
Trifolium monanthum	FABACEAE		native	
Trifolium monanthum subsp. grantianum	FABACEAE	GRANT'S CARPET CLOVER	native	
Trifolium monanthum subsp. monanthum	FABACEAE	CARPET CLOVER	native	
Trifolium monanthum subsp. parvum	FABACEAE	SMALL CARPET CLOVER	native	
Trifolium monanthum subsp. tenerum	FABACEAE	DELICATE CARPET CLOVER	native	
Trifolium obtusiflorum	FABACEAE	CLAMMY CLOVER	native	
Trifolium oliganthum	FABACEAE	FEW-FLOWERED CLOVER	native	
Trifolium olivaceum	FABACEAE	OLIVE CLOVER	native	
Trifolium palmeri	FABACEAE	SOUTHERN ISLAND CLOVER	native	
Trifolium polyodon	FABACEAE	PACIFIC GROVE CLOVER	native	
Trifolium pratense	FABACEAE	RED CLOVER	naturalized	
Trifolium productum	FABACEAE	PRODUCTIVE CLOVER	native	
Trifolium repens	FABACEAE	WHITE CLOVER	naturalized	
Trifolium retusum	FABACEAE	TEASEL CLOVER	naturalized	
Trifolium siskiyouense	FABACEAE	SISKIYOU CLOVER	naturalized	
Trifolium striatum	FABACEAE	KNOTTED CLOVER	naturalized	
Trifolium subterraneum	FABACEAE	SUBTERRANEAN CLOVER	naturalized	
Trifolium tomentosum	FABACEAE	WOOLLY CLOVER	naturalized	
Trifolium trichocalyx	FABACEAE	MONTEREY CLOVER	native	
Trifolium variegatum	FABACEAE		native	
Trifolium variegatum var. geminiflorum	FABACEAE	SMALL-FLOWERED VARIEGATED CLOVER	native	
Trifolium variegatum var. major	FABACEAE	LARGE VARIEGATED CLOVER	native	
Trifolium variegatum var. variegatum	FABACEAE	VARIEGATED CLOVER	native	
Trifolium vesiculosum	FABACEAE	ARROWLEAF CLOVER	naturalized	
Trifolium willdenovii	FABACEAE	TOMCAT CLOVER	native	
Trifolium wormskioldii	FABACEAE	COW CLOVER	native	
Trifolium wormskioldii var. arizonicum	FABACEAE		native	acceptance uncertain
Triglochin concinna	JUNCAGINACEAE		native	
Triglochin concinna var. concinna	JUNCAGINACEAE	SEASIDE ARROW-GRASS	native	
Triglochin concinna var. debilis	JUNCAGINACEAE		native	
Triglochin maritima	JUNCAGINACEAE	COMMON ARROW-GRASS	native	
Triglochin palustris	JUNCAGINACEAE	MARSH ARROW-GRASS	native	
Triglochin scilloides	JUNCAGINACEAE	FLOWERING-QUILLWORT	native	
Triglochin striata	JUNCAGINACEAE	THREE-RIBBED ARROW-GRASS	native	
Trillium albidum	MELANTHIACEAE		native	
Trillium angustipetalum	MELANTHIACEAE		native	
Trillium chloropetalum	MELANTHIACEAE	GIANT TRILLIUM	native	
Trillium ovatum	MELANTHIACEAE	WESTERN TRILLIUM	native	
Trillium ovatum subsp. oettingeri	MELANTHIACEAE	SALMON MOUNTAINS WAKEROBIN	native	
Trillium ovatum subsp. ovatum	MELANTHIACEAE		native	
Triodanis biflora	CAMPANULACEAE		native	
Triodanis perfoliata	CAMPANULACEAE		native	
Triphysaria eriantha	OROBANCHACEAE	JOHNNY-TUCK	native	
Triphysaria eriantha subsp. eriantha	OROBANCHACEAE		native	
Triphysaria eriantha subsp. rosea	OROBANCHACEAE		native	
Triphysaria floribunda	OROBANCHACEAE	SAN FRANCISCO OWL'S-CLOVER	native	
Triphysaria micrantha	OROBANCHACEAE		native	
Triphysaria pusilla	OROBANCHACEAE		native	
Triphysaria versicolor	OROBANCHACEAE		native	
Triphysaria versicolor subsp. faucibarbata	OROBANCHACEAE		native	
Triphysaria versicolor subsp. versicolor	OROBANCHACEAE		native	
Tripleurospermum inodorum	ASTERACEAE	FALSE CHAMOMILE	naturalized	
Tripterocalyx crux-maltae	NYCTAGINACEAE	KELLOGG'S SAND-VERBENA	native	
Tripterocalyx micranthus	NYCTAGINACEAE	SMALL-FLOWERED SAND-VERBENA	native	
Trisetum canescens	POACEAE	TALL FALSE OAT	native	
Trisetum cernuum	POACEAE	NODDING FALSE OAT	native	
Trisetum projectum	POACEAE	INTERRUPTED FALSE OAT	native	
Trisetum spicatum	POACEAE	SPIKE FALSE OAT	native	
Trisetum wolfii	POACEAE	WOLF'S FALSE OAT	native	
Triteleia bridgesii	THEMIDACEAE		native	
Triteleia clementina	THEMIDACEAE	SAN CLEMENTE ISLAND TRITELEIA	native	
Triteleia crocea	THEMIDACEAE		native	
Triteleia dudleyi	THEMIDACEAE		native	
Triteleia grandiflora	THEMIDACEAE	LARGE-FLOWERED TRITELEIA	native	
Triteleia hendersonii	THEMIDACEAE		native	
Triteleia hyacinthina	THEMIDACEAE	FOOL'S ONION	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	COMMON TRITELEIA	native	
Triteleia lilacina	THEMIDACEAE		native	
Triteleia lugens	THEMIDACEAE	DARK-MOUTHED TRITELEIA	native	
Triteleia montana	THEMIDACEAE	MOUNTAIN TRITELEIA	native	
Triteleia peduncularis	THEMIDACEAE	LONG-RAYED BRODIAEA	native	
Triticum aestivum	POACEAE		naturalized	
Trixis californica	ASTERACEAE		native	
Trixis californica var. californica	ASTERACEAE		native	
Tropaeolum majus	TROPAEOLACEAE	GARDEN NASTURTIUM	naturalized	
Tropidocarpum californicum	BRASSICACEAE	KINGS GOLD	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	SOLANO GRASS	native	
Tulipa clusiana	LILIACEAE	TULIP	naturalized	
Turritis glabra	BRASSICACEAE		native	
Typha angustifolia	TYPHACEAE	NARROW-LEAVED CATTAIL	naturalized	
Typha domingensis	TYPHACEAE	SOUTHERN CATTAIL	native	
Typha latifolia	TYPHACEAE	BROAD-LEAVED CATTAIL	native	
Ulex europaeus	FABACEAE		naturalized	
Ulmus parvifolia	ULMACEAE	LACEBARK ELM	naturalized	
Ulmus pumila	ULMACEAE	SIBERIAN ELM	naturalized	
Umbellularia californica	LAURACEAE		native	
Uropappus lindleyi	ASTERACEAE		native	
Urospermum picroides	ASTERACEAE		naturalized	
Urtica dioica	URTICACEAE		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		native	
Utricularia intermedia	LENTIBULARIACEAE	FLAT-LEAVED BLADDERWORT	native	
Utricularia macrorhiza	LENTIBULARIACEAE	COMMON BLADDERWORT	native	
Utricularia minor	LENTIBULARIACEAE	LESSER BLADDERWORT	native	
Utricularia ochroleuca	LENTIBULARIACEAE	CREAM-FLOWERED BLADDERWORT	native	
Utricularia subulata	LENTIBULARIACEAE		naturalized	
Vaccaria hispanica	CARYOPHYLLACEAE		naturalized	
Vaccinium cespitosum	ERICACEAE	DWARF BILBERRY	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	LITTLE-LEAVED HUCKLEBERRY	native	
Vaccinium uliginosum	ERICACEAE		native	
Vaccinium uliginosum subsp. occidentale	ERICACEAE	WESTERN BLUEBERRY	native	
Vachellia farnesiana	FABACEAE	SWEET ACACIA	native	
Vachellia farnesiana var. farnesiana	FABACEAE		native	
Vachellia farnesiana var. minuta	FABACEAE		native	
Vahlodea atropurpurea	POACEAE		native	
Valeriana californica	VALERIANACEAE		native	
Valeriana occidentalis	VALERIANACEAE	WESTERN VALERIAN	native	
Valeriana pubicarpa	VALERIANACEAE		native	
Valeriana sitchensis	VALERIANACEAE		native	
Valeriana sitchensis subsp. scouleri	VALERIANACEAE		native	
Valeriana sitchensis subsp. sitchensis	VALERIANACEAE		native	
Valerianella carinata	VALERIANACEAE		naturalized	
Valerianella locusta	VALERIANACEAE		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		native	
Ventenata dubia	POACEAE	NORTH AFRICA GRASS	naturalized	
Veratrum californicum	MELANTHIACEAE		native	
Veratrum californicum var. californicum	MELANTHIACEAE		native	
Veratrum fimbriatum	MELANTHIACEAE	FRINGED FALSE-HELLEBORE	native	
Veratrum insolitum	MELANTHIACEAE	SISKIYOU FALSE-HELLEBORE	native	
Veratrum viride	MELANTHIACEAE		native	
Verbascum blattaria	SCROPHULARIACEAE	MOTH MULLEIN	naturalized	
Verbascum bombyciferum	SCROPHULARIACEAE	GIANT SILVER MULLEIN	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	RED HILLS 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	
Verbena scabra	VERBENACEAE		native	
Verbesina dissita	ASTERACEAE	BIG-LEAVED CROWNBEARD	native	
Verbesina encelioides	ASTERACEAE		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		naturalized	
Veronica beccabunga	PLANTAGINACEAE		naturalized	
Veronica catenata	PLANTAGINACEAE	CHAIN SPEEDWELL	naturalized	
Veronica copelandii	PLANTAGINACEAE	COPELAND'S SPEEDWELL	native	
Veronica cusickii	PLANTAGINACEAE	CUSICK'S SPEEDWELL	native	
Veronica peregrina	PLANTAGINACEAE		native	
Veronica peregrina subsp. xalapensis	PLANTAGINACEAE	PURSLANE SPEEDWELL	native	
Veronica persica	PLANTAGINACEAE	PERSIAN SPEEDWELL	naturalized	
Veronica scutellata	PLANTAGINACEAE	MARSH SPEEDWELL	native	
Veronica serpyllifolia	PLANTAGINACEAE		native	
Veronica serpyllifolia subsp. humifusa	PLANTAGINACEAE		native	
Veronica wormskjoldii	PLANTAGINACEAE	AMERICAN ALPINE SPEEDWELL	native	
Viburnum edule	ADOXACEAE	SQUASHBERRY	native	
Viburnum ellipticum	ADOXACEAE	OVAL-LEAVED VIBURNUM	native	
Vicia americana	FABACEAE		native	
Vicia americana subsp. americana	FABACEAE	AMERICAN VETCH	native	
Vicia benghalensis	FABACEAE	PURPLE VETCH	naturalized	
Vicia gigantea	FABACEAE	GIANT VETCH	native	
Vicia hassei	FABACEAE	SLENDER VETCH	native	
Vicia hirsuta	FABACEAE		naturalized	
Vicia ludoviciana	FABACEAE		native	
Vicia ludoviciana subsp. ludoviciana	FABACEAE	DEERPEA VETCH	native	
Vicia lutea	FABACEAE	YELLOW VETCH	naturalized	
Vicia sativa	FABACEAE		naturalized	
Vicia sativa subsp. nigra	FABACEAE	NARROW-LEAVED VETCH	naturalized	
Vicia sativa subsp. sativa	FABACEAE	SPRING VETCH	naturalized	
Vicia tetrasperma	FABACEAE	SPARROW VETCH	naturalized	
Vicia villosa	FABACEAE	WINTER VETCH	naturalized	
Vicia villosa subsp. varia	FABACEAE		naturalized	
Vicia villosa subsp. villosa	FABACEAE		naturalized	
Viguiera purisimae	ASTERACEAE	LA PURISIMA VIGUIERA	native	
Vinca major	APOCYNACEAE	GREATER PERIWINKLE	naturalized	
Viola adunca	VIOLACEAE		native	
Viola adunca subsp. adunca	VIOLACEAE	EARLY BLUE VIOLET	native	
Viola arvensis	VIOLACEAE	WILD PANSY	naturalized	
Viola bakeri	VIOLACEAE	BAKER'S VIOLET	native	
Viola beckwithii	VIOLACEAE	GREAT BASIN VIOLET	native	
Viola cuneata	VIOLACEAE	WEDGE-LEAVED VIOLET	native	
Viola douglasii	VIOLACEAE	GOLDEN VIOLET	native	
Viola glabella	VIOLACEAE	SMOOTH YELLOW VIOLET	native	
Viola hallii	VIOLACEAE	WILD PANSY	native	
Viola howellii	VIOLACEAE	HOWELL'S VIOLET	native	
Viola langsdorffii	VIOLACEAE	LANGSDORF'S VIOLET	native	
Viola lobata	VIOLACEAE	YELLOW WOOD VIOLET	native	
Viola lobata subsp. integrifolia	VIOLACEAE		native	
Viola lobata subsp. lobata	VIOLACEAE		native	
Viola macloskeyi	VIOLACEAE	SMOOTH WHITE VIOLET	native	
Viola nephrophylla	VIOLACEAE	LECONTE VIOLET	native	
Viola ocellata	VIOLACEAE	TWO-EYED VIOLET	native	
Viola odorata	VIOLACEAE	SWEET VIOLET	naturalized	
Viola palustris	VIOLACEAE	ALPINE MARSH VIOLET	native	
Viola pedunculata	VIOLACEAE	JOHNNY-JUMP-UP	native	
Viola pinetorum	VIOLACEAE	MOUNTAIN YELLOW VIOLET	native	
Viola pinetorum subsp. grisea	VIOLACEAE	GRAY-LEAVED VIOLET	native	
Viola pinetorum subsp. pinetorum	VIOLACEAE		native	
Viola praemorsa	VIOLACEAE		native	
Viola praemorsa subsp. linguifolia	VIOLACEAE		native	
Viola praemorsa subsp. praemorsa	VIOLACEAE	YELLOW MONTANE VIOLET	native	
Viola primulifolia	VIOLACEAE		native	
Viola primulifolia subsp. occidentalis	VIOLACEAE	WESTERN WHITE BOG VIOLET	native	
Viola purpurea	VIOLACEAE		native	
Viola purpurea subsp. aurea	VIOLACEAE	GOLDEN VIOLET	native	
Viola purpurea subsp. dimorpha	VIOLACEAE		native	
Viola purpurea subsp. integrifolia	VIOLACEAE		native	
Viola purpurea subsp. mesophyta	VIOLACEAE		native	
Viola purpurea subsp. mohavensis	VIOLACEAE		native	
Viola purpurea subsp. purpurea	VIOLACEAE	MOUNTAIN VIOLET	native	
Viola purpurea subsp. quercetorum	VIOLACEAE		native	
Viola purpurea subsp. venosa	VIOLACEAE	PURPLE-MARKED YELLOW VIOLET	native	
Viola sempervirens	VIOLACEAE	REDWOOD VIOLET	native	
Viola sheltonii	VIOLACEAE	SHELTON'S VIOLET	native	
Viola tomentosa	VIOLACEAE	FELT-LEAVED 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	WINE GRAPE	naturalized	
Volutaria muricata	ASTERACEAE	MOROCCO KNAPWEED	naturalized	
Washingtonia filifera	ARECACEAE	CALIFORNIA FAN PALM	native	
Washingtonia robusta	ARECACEAE	MEXICAN FAN PALM	naturalized	acceptance uncertain
Watsonia meriana	IRIDACEAE		naturalized	
Whipplea modesta	HYDRANGEACEAE		native	
Wigandia caracasana	BORAGINACEAE		naturalized	acceptance uncertain
Wislizenia refracta	CLEOMACEAE	JACKASS-CLOVER	native	
Wislizenia refracta subsp. californica	CLEOMACEAE		native	
Wislizenia refracta subsp. palmeri	CLEOMACEAE	PALMER'S JACKASS-CLOVER	native	
Wislizenia refracta subsp. refracta	CLEOMACEAE		native	
Wolffia arrhiza	ARACEAE		naturalized	
Wolffia borealis	ARACEAE		native	
Wolffia brasiliensis	ARACEAE	BRAZILIAN WATERMEAL	native	
Wolffia columbiana	ARACEAE		native	
Wolffia globosa	ARACEAE		native	
Wolffiella lingulata	ARACEAE		native	
Wolffiella oblonga	ARACEAE		native	
Woodsia oregana	WOODSIACEAE		native	
Woodsia plummerae	WOODSIACEAE	PLUMMER'S WOODSIA	native	
Woodsia scopulina	WOODSIACEAE		native	
Woodwardia fimbriata	BLECHNACEAE	GIANT CHAIN FERN	native	
Wyethia angustifolia	ASTERACEAE		native	
Wyethia bolanderi	ASTERACEAE	BOLANDER'S MULE'S EARS	native	
Wyethia elata	ASTERACEAE	HALL'S WYETHIA	native	
Wyethia glabra	ASTERACEAE		native	
Wyethia helenioides	ASTERACEAE		native	
Wyethia invenusta	ASTERACEAE	RAYLESS MULE'S EARS	native	
Wyethia longicaulis	ASTERACEAE	HUMBOLDT COUNTY WYETHIA	native	
Wyethia mollis	ASTERACEAE		native	
Wyethia ovata	ASTERACEAE	SOUTHERN MULE'S EARS	native	
Wyethia reticulata	ASTERACEAE	EL DORADO COUNTY MULE EARS	native	
Xanthisma gracile	ASTERACEAE	ANNUAL BRISTLEWEED	native	
Xanthisma junceum	ASTERACEAE	RUSH-LIKE BRISTLEWEED	native	
Xanthisma spinulosum	ASTERACEAE		native	
Xanthisma spinulosum var. gooddingii	ASTERACEAE	SPINY GOLDENWEED	native	
Xanthium spinosum	ASTERACEAE	SPINY COCKLEBUR	native	
Xanthium strumarium	ASTERACEAE	COCKLEBUR	native	
Xerophyllum tenax	MELANTHIACEAE		native	
Xylococcus bicolor	ERICACEAE		native	
Xylorhiza cognata	ASTERACEAE	MECCA-ASTER	native	
Xylorhiza orcuttii	ASTERACEAE	ORCUTT'S WOODY-ASTER	native	
Xylorhiza tortifolia	ASTERACEAE		native	
Xylorhiza tortifolia var. tortifolia	ASTERACEAE	MOJAVE-ASTER	native	
Yabea microcarpa	APIACEAE		native	
Yucca baccata	AGAVACEAE		native	
Yucca baccata var. baccata	AGAVACEAE	BLUE YUCCA	native	
Yucca brevifolia	AGAVACEAE	JOSHUA TREE	native	
Yucca schidigera	AGAVACEAE	MOJAVE YUCCA	native	
Zannichellia palustris	ZANNICHELLIACEAE		native	
Zantedeschia aethiopica	ARACEAE	CALLA-LILY	naturalized	
Zeltnera davyi	GENTIANACEAE	DAVY'S CENTAURY	native	
Zeltnera exaltata	GENTIANACEAE	DESERT CENTAURY	native	
Zeltnera muehlenbergii	GENTIANACEAE	MONTEREY CENTAURY	native	
Zeltnera namophila	GENTIANACEAE	SPRING-LOVING CENTAURY	native	
Zeltnera trichantha	GENTIANACEAE	ALKALI CENTAURY	native	
Zeltnera venusta	GENTIANACEAE	CHARMING CENTAURY	native	
Ziziphus obtusifolia	RHAMNACEAE		native	
Ziziphus obtusifolia var. canescens	RHAMNACEAE	GRAYTHORN	native	
Ziziphus parryi	RHAMNACEAE		native	
Ziziphus parryi var. parryi	RHAMNACEAE	PARRY'S JUJUBE	native	
Zostera asiatica	ZOSTERACEAE		naturalized	acceptance uncertain
Zostera japonica	ZOSTERACEAE		naturalized	acceptance uncertain
Zostera marina	ZOSTERACEAE		native	
Zostera pacifica	ZOSTERACEAE		native	
Zygophyllum fabago	ZYGOPHYLLACEAE		naturalized