Jepson eFlora: Search page
Key to families Table of families and genera
  Index to accepted names and synonyms:
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Scientific Name

Index Page: A

Scientific NameCommon Name
Abies
  ↳  Key to Abies
FIR
Abies ×shastensis (Lemmon) Lemmon
(Under Abies magnifica var. shastensis)
Synonym
Abies amabilisPACIFIC SILVER FIRNative
Abies bifolia
(Under Abies lasiocarpa var. lasiocarpa)
Mentioned in
a note
Abies bracteataBRISTLECONE FIRNative
Abies concolorWHITE FIRNative
Abies concolor var. concolor
(Under Abies concolor)
Mentioned in
a note
Abies concolor var. lowiana
(Under Abies concolor)
Mentioned in
a note
Abies grandisGRAND FIRNative
Abies lasiocarpa var. lasiocarpaSUBALPINE FIRNative
Abies lowiana
(Under Abies concolor)
Synonym
Abies magnificaCALIFORNIA RED FIRNative
Abies magnifica var. critchfieldii
(Under Abies magnifica var. shastensis)
Mentioned in
a note
Abies magnifica var. magnificaNative
Abies magnifica var. shastensisSHASTA RED FIRNative
Abies proceraNOBLE FIRNative
Abies venusta
(Under Abies bracteata)
Synonym
Abronia
  ↳  Key to Abronia
SAND-VERBENA
Abronia alpinaRAMSHAW MEADOWS ABRONIANative
Abronia crux-maltae
(Under Tripterocalyx crux-maltae)
Synonym
Abronia gracilis
(Under Abronia)
Mentioned in
a note
Abronia latifoliaNative
Abronia maritimaRED SAND-VERBENANative
Abronia micrantha
(Under Tripterocalyx micranthus)
Synonym
Abronia nana subsp. covillei
(Under Abronia nana var. covillei)
Synonym
Abronia nana var. covilleiCOVILLE'S DWARF ABRONIANative
Abronia nana var. nana
(Under Abronia nana var. covillei)
Mentioned in
a note
Abronia pogonanthaNative
Abronia turbinataNative
Abronia umbellataNative
Abronia umbellata subsp. alba
(Under Abronia umbellata)
Synonym
Abronia umbellata subsp. breviflora
(Under Abronia umbellata var. breviflora)
Synonym
Abronia umbellata subsp. platyphylla
(Under Abronia umbellata)
Synonym
Abronia umbellata subsp. umbellata
(Under Abronia umbellata var. umbellata)
Synonym
Abronia umbellata subsp. variabilis
(Under Abronia umbellata)
Synonym
Abronia umbellata var. acutalata
(Under Abronia umbellata)
Mentioned in
a note
Abronia umbellata var. brevifloraPINK SAND-VERBENANative
Abronia umbellata var. umbellataNative
Abronia villosaNative
Abronia villosa var. auritaCHAPARRAL SAND-VERBENANative
Abronia villosa var. villosaNative
Abutilon
  ↳  Key to Abutilon
Abutilon crispum
(Under Herissantia crispa)
Synonym
Abutilon palmeriNative
Abutilon parvulumDWARF ABUTILONNative
Abutilon theophrastiVELVET-LEAFNaturalized
Acacia
  ↳  Key to Acacia
Acacia armata
(Under Acacia paradoxa)
Synonym
Acacia baileyanaCOOTAMUNDRA WATTLENaturalized
Acacia cultriformis
(Under Acacia)
Mentioned in
a note
Acacia cyclopsWESTERN COASTAL WATTLENaturalized
Acacia dealbataSILVER WATTLENaturalized
Acacia decurrensGREEN WATTLEWaif
Acacia decurrens var. dealbata
(Under Acacia dealbata)
Synonym
Acacia elata
(Under Acacia)
Mentioned in
a note
Acacia farnesiana
(Under Acacia)
Mentioned in
a note
Acacia farnesiana subsp. minuta
(Under Vachellia farnesiana var. minuta)
Synonym
Acacia farnesiana var. farnesiana
(Under Vachellia farnesiana var. farnesiana)
Synonym
Acacia greggii
(Under Senegalia greggii)
Synonym
Acacia greggii
(Under Acacia)
Mentioned in
a note
Acacia greggii var. greggii
(Under Senegalia greggii)
Synonym
Acacia longifoliaSYDNEY GOLDEN WATTLENaturalized
Acacia lophantha
(Under Albizia lophantha)
Synonym
Acacia mearnsiiBLACK WATTLEWaif
Acacia melanoxylonBLACKWOOD ACACIANaturalized
Acacia minuta
(Under Vachellia farnesiana var. minuta)
Synonym
Acacia paradoxaKANGAROO THORNWaif
Acacia podalyriifoliaQUEENSLAND SILVER WATTLEWaif
Acacia pycnanthaGOLDEN WATTLEWaif
Acacia redolensVANILLA-SCENTED WATTLENaturalized
Acacia retinodesEVERBLOOMING WATTLEWaif
Acacia salignaGOLDEN WREATH WATTLENaturalized
Acacia verticillataSTAR ACACIA, PRICKLY MOSESWaif
Acaena
  ↳  Key to Acaena
Acaena anserinifolia
(Under Acaena novae-zelandiae)
Synonym
Acaena novae-zelandiaeBIDDY-BIDDYNaturalized
Acaena pallidaNaturalized
Acaena pinnatifida var. californicaNative
Acalypha
Acalypha californicaNative
Acamptopappus
  ↳  Key to Acamptopappus
GOLDENHEAD
Acamptopappus shockleyiSHOCKLEY'S GOLDENHEADNative
Acamptopappus sphaerocephalusRAYLESS GOLDENHEADNative
Acamptopappus sphaerocephalus var. hirtellusNative
Acamptopappus sphaerocephalus var. sphaerocephalusNative
Acanthaceae
  ↳  Key to Acanthaceae
ACANTHUS FAMILY
Acanthogonum corrugatum
(Under Chorizanthe corrugata)
Synonym
Acanthogonum polygonoides
(Under Chorizanthe polygonoides var. polygonoides)
Synonym
Acanthogonum polygonoides var. longispinum
(Under Chorizanthe polygonoides var. longispina)
Synonym
Acanthogonum polygonoides var. polygonoides
(Under Chorizanthe polygonoides var. polygonoides)
Synonym
Acanthogonum rigidum
(Under Chorizanthe rigida)
Synonym
Acanthomintha
  ↳  Key to Acanthomintha
THORNMINT
Acanthomintha duttoniiSAN MATEO THORNMINTNative
Acanthomintha ilicifoliaSAN DIEGO THORNMINTNative
Acanthomintha lanceolataSANTA CLARA THORNMINTNative
Acanthomintha obovataNative
Acanthomintha obovata subsp. cordataHEART-LEAVED THORNMINTNative
Acanthomintha obovata subsp. duttonii
(Under Acanthomintha duttonii)
Synonym
Acanthomintha obovata subsp. obovataSAN BENITO THORNMINTNative
Acanthoscyphus
Acanthoscyphus parishii
  ↳  Key to Acanthoscyphus parishii
FLOWERY PUNCTUREBRACTNative
Acanthoscyphus parishii var. abramsiiABRAMS' OXYTHECANative
Acanthoscyphus parishii var. cienegensisCIENEGA SECA OXYTHECANative
Acanthoscyphus parishii var. goodmanianaCUSHENBURY OXYTHECANative
Acanthoscyphus parishii var. parishiiPARISH'S OXYTHECANative
Acca sellowiana
(Under Myrtaceae)
Mentioned in
a note
Acer
  ↳  Key to Acer
MAPLE
Acer campestreHEDGE MAPLEWaif
Acer circinatumVINE MAPLENative
Acer glabrumMOUNTAIN MAPLENative
Acer glabrum var. diffusumNative
Acer glabrum var. douglasii
(Under Acer glabrum)
Mentioned in
a note
Acer glabrum var. glabrumNative
Acer glabrum var. greenei
(Under Acer glabrum var. glabrum)
Synonym
Acer glabrum var. torreyi
(Under Acer glabrum var. glabrum)
Synonym
Acer glabrum var. torreyi
(Under Acer glabrum)
Mentioned in
a note
Acer macrophyllumBIG-LEAF MAPLENative
Acer negundoBOX ELDERNative
Acer negundo var. arizonicum
(Under Acer negundo)
Synonym
Acer negundo var. californicum
(Under Acer negundo)
Synonym
Acer negundo var. interius
(Under Acer negundo)
Synonym
Acer saccharinumSILVER MAPLENaturalized
AchilleaYARROW
Achillea borealis subsp. arenicola
(Under Achillea millefolium)
Synonym
Achillea borealis subsp. californica
(Under Achillea millefolium)
Synonym
Achillea lanulosa subsp. alpicola
(Under Achillea millefolium)
Synonym
Achillea lanulosa var. lanulosa
(Under Achillea millefolium)
Synonym
Achillea millefoliumNative
Achillea millefolium subsp. lanulosa
(Under Achillea millefolium)
Synonym
Achillea millefolium var. alpicola
(Under Achillea millefolium)
Synonym
Achillea millefolium var. arenicola
(Under Achillea millefolium)
Synonym
Achillea millefolium var. borealis
(Under Achillea millefolium)
Synonym
Achillea millefolium var. californica
(Under Achillea millefolium)
Synonym
Achillea millefolium var. gigantea
(Under Achillea millefolium)
Synonym
Achillea millefolium var. littoralis
(Under Achillea millefolium)
Synonym
Achillea millefolium var. pacifica
(Under Achillea millefolium)
Synonym
Achillea millefolium var. puberula
(Under Achillea millefolium)
Synonym
Achlys
  ↳  Key to Achlys
VANILLA LEAF
Achlys californicaNative
Achlys triphylla subsp. triphyllaNative
Achnatherum aridum
(Under Stipa arida)
Synonym
Achnatherum brachychaetum
(Under Stipa brachychaeta)
Synonym
Achnatherum coronatum
(Under Stipa coronata)
Synonym
Achnatherum diegoense
(Under Stipa diegoensis)
Synonym
Achnatherum hymenoides
(Under Stipa hymenoides)
Synonym
Achnatherum latiglume
(Under Stipa latiglumis)
Synonym
Achnatherum lemmonii subsp. lemmonii
(Under Stipa lemmonii var. lemmonii)
Synonym
Achnatherum lemmonii subsp. pubescens
(Under Stipa lemmonii var. pubescens)
Synonym
Achnatherum lettermanii
(Under Stipa lettermanii)
Synonym
Achnatherum nelsonii subsp. dorei
(Under Stipa nelsonii var. dorei)
Synonym
Achnatherum nevadense
(Under Stipa nevadensis)
Synonym
Achnatherum occidentale subsp. californicum
(Under Stipa occidentalis var. californica)
Synonym
Achnatherum occidentale subsp. occidentale
(Under Stipa occidentalis var. occidentalis)
Synonym
Achnatherum occidentale subsp. pubescens
(Under Stipa occidentalis var. pubescens)
Synonym
Achnatherum parishii subsp. parishii
(Under Stipa parishii var. parishii)
Synonym
Achnatherum parishii var. parishii
(Under Stipa parishii var. parishii)
Synonym
Achnatherum pinetorum
(Under Stipa pinetorum)
Synonym
Achnatherum speciosum
(Under Stipa speciosa)
Synonym
Achnatherum stillmanii
(Under Stipa stillmanii)
Synonym
Achnatherum thurberianum
(Under Stipa thurberiana)
Synonym
Achnatherum webberi
(Under Stipa webberi)
Synonym
AchyrachaenaBLOW-WIVES
Achyrachaena mollisNative
Achyranthes lanuginosa
(Under Tidestromia lanuginosa)
Synonym
Achyronychia
Achyronychia cooperiONYX FLOWER, FROST-MATNative
Achyronychia rixfordii
(Under Scopulophila rixfordii)
Synonym
Acleisanthes
  ↳  Key to Acleisanthes
TRUMPETS
Acleisanthes diffusa
(Under Acleisanthes nevadensis)
Mentioned in
a note
Acleisanthes longifloraANGEL TRUMPETSNative
Acleisanthes nevadensisDESERT WING-FRUITNative
Acmispon
  ↳  Key to Acmispon
DEERVETCH, DEERWEED
Acmispon americanus var. americanusNative
Acmispon argophyllusNative
Acmispon argophyllus var. adsurgensSAN CLEMENTE ISLAND BIRD'S-FOOT TREFOILNative
Acmispon argophyllus var. argenteusNative
Acmispon argophyllus var. argophyllusNative
Acmispon argophyllus var. fremontiiNative
Acmispon argophyllus var. niveusSANTA CRUZ ISLAND BIRD'S-FOOT TREFOILNative
Acmispon argyraeusNative
Acmispon argyraeus var. argyraeusNative
Acmispon argyraeus var. multicaulisSCRUB LOTUSNative
Acmispon argyraeus var. notitiusPROVIDENCE MOUNTAINS LOTUSNative
Acmispon brachycarpusNative
Acmispon cytisoidesNative
Acmispon dendroideusNative
Acmispon dendroideus var. dendroideusISLAND BROOMNative
Acmispon dendroideus var. traskiaeSAN CLEMENTE ISLAND LOTUSNative
Acmispon dendroideus var. veatchiiSAN MIGUEL ISLAND DEERWEEDNative
Acmispon denticulatusNative
Acmispon glaberDEERWEED, CALIFORNIA BROOMNative
Acmispon glaber var. brevialatusNative
Acmispon glaber var. glaberNative
Acmispon grandiflorusNative
Acmispon grandiflorus var. grandiflorusNative
Acmispon grandiflorus var. macranthusNative
Acmispon haydoniiPYGMY LOTUSNative
Acmispon heermanniiNative
Acmispon heermannii var. heermanniiNative
Acmispon heermannii var. orbicularisNative
Acmispon junceusNative
Acmispon junceus var. biolettiiNative
Acmispon junceus var. junceusNative
Acmispon maritimusNative
Acmispon maritimus var. brevivexillusNative
Acmispon maritimus var. maritimusNative
Acmispon micranthusNative
Acmispon nevadensisNative
Acmispon nevadensis var. davidsoniiNative
Acmispon nevadensis var. nevadensisNative
Acmispon parviflorusNative
Acmispon procumbensNative
Acmispon procumbens var. jepsoniiNative
Acmispon procumbens var. procumbensNative
Acmispon prostratusNUTTALL'S ACMISPONNative
Acmispon rigidusNative
Acmispon rubriflorusRED-FLOWERED BIRD'S-FOOT TREFOILNative
Acmispon strigosusNative
Acmispon wrangelianusNative
AconitumMONKSHOOD
Aconitum bulbiferum
(Under Aconitum columbianum subsp. viviparum)
Synonym
Aconitum columbianum
  ↳  Key to Aconitum columbianum
Native
Aconitum columbianum subsp. columbianumNative
Aconitum columbianum subsp. pallidum
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum columbianum subsp. viviparumNative
Aconitum columbianum var. columbianum
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum columbianum var. howellii
(Under Aconitum columbianum subsp. viviparum)
Synonym
Aconitum columbianum var. ochroleucum
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum geranioides
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum hansenii
(Under Aconitum columbianum subsp. viviparum)
Synonym
Aconitum helleri
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum leibergii
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum mogollonicum
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum noveboracense
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum uncinatum subsp. noveboracense
(Under Aconitum columbianum subsp. columbianum)
Synonym
Aconitum viviparum
(Under Aconitum columbianum subsp. viviparum)
Synonym
Aconogonon
  ↳  Key to Aconogonon
Aconogonon davisiaeNative
Aconogonon davisiae var. glabrum
(Under Aconogonon davisiae)
Synonym
Aconogonon newberryiNative
Aconogonon phytolaccifoliumNative
Aconogonon phytolaccifolium
(Under Aconogonon phytolaccifolium)
Synonym
Aconogonon phytolaccifolium var. glabrum
(Under Aconogonon phytolaccifolium)
Synonym
Aconogonon polystachyum
(Under Persicaria wallichii)
Synonym
Acorus calamus
(Under Araceae)
Mentioned in
a note
Acourtia
Acourtia microcephalaNative
Acrachne racemosa
(Under Poaceae (Gramineae))
Mentioned in
a note
Acroptilon
Acroptilon repensRUSSIAN KNAPWEEDNaturalized
ActaeaBANEBERRY
Actaea rubraNative
Actaea rubra subsp. arguta
(Under Actaea rubra)
Synonym
Adenocaulon
Adenocaulon bicolorTRAIL PLANTNative
Adenophyllum
  ↳  Key to Adenophyllum
Adenophyllum cooperiNative
Adenophyllum porophylloidesNative
Adenostoma
  ↳  Key to Adenostoma
Adenostoma fasciculatumCHAMISE, GREASEWOODNative
Adenostoma fasciculatum var. fasciculatumNative
Adenostoma fasciculatum var. obtusifoliumNative
Adenostoma fasciculatum var. prostratumNative
Adenostoma sparsifoliumRED SHANK, RIBBON WOODNative
Adiantum
  ↳  Key to Adiantum
Adiantum aleuticumFIVE-FINGER FERNNative
Adiantum boreale
(Under Adiantum aleuticum)
Synonym
Adiantum capillus-venerisSOUTHERN MAIDENHAIRNative
Adiantum jordaniiCALIFORNIA MAIDENHAIRNative
Adiantum pedatum subsp. calderi
(Under Adiantum aleuticum)
Synonym
Adiantum pedatum var. aleuticum
(Under Adiantum aleuticum)
Synonym
Adiantum pedatum var. subpumilum
(Under Adiantum aleuticum)
Synonym
Adiantum shastenseSHASTA MAIDENHAIRNative
Adolphia
Adolphia californicaCALIFORNIA ADOLPHIANative
Adolphia infesta
(Under Adolphia californica)
Mentioned in
a note
AdonisPHEASANT'S EYE
Adonis aestivalisSUMMER PHEASANT'S EYENaturalized
Adoxaceae
  ↳  Key to Adoxaceae
MUSKROOT FAMILY
Aegilops
  ↳  Key to Aegilops
GOAT GRASS
Aegilops cylindricaJOINTED GOAT GRASSNaturalized
Aegilops geniculataOVATE GOAT GRASSWaif
Aegilops neglectaTHREE-AWNED GOAT GRASSNaturalized
Aegilops ovata
(Under Aegilops geniculata)
Synonym
Aegilops tauschii
(Under Aegilops)
Mentioned in
a note
Aegilops triaristata
(Under Aegilops neglecta)
Synonym
Aegilops triuncialisBARBED GOAT GRASSNaturalized
Aegochloa cotulifolia
(Under Navarretia cotulifolia)
Synonym
Aeonium
  ↳  Key to Aeonium
Aeonium arboreum var. arboreumNaturalized
Aeonium haworthiiNaturalized
Aeschynomene
Aeschynomene rudisROUGH JOINTVETCHAgricultural weed
AesculusBUCKEYE
Aesculus californicaCALIFORNIA BUCKEYENative
Agastache
  ↳  Key to Agastache
HORSEMINT
Agastache glaucifolia
(Under Agastache urticifolia)
Synonym
Agastache parvifoliaNative
Agastache urticifoliaNative
Agastache urticifolia subsp. parvifolia
(Under Agastache parvifolia)
Synonym
Agavaceae
  ↳  Key to Agavaceae
CENTURY PLANT FAMILY
Agave
  ↳  Key to Agave
CENTURY PLANT
Agave consociata
(Under Agave deserti var. deserti)
Synonym
Agave desertiNative
Agave deserti subsp. deserti
(Under Agave deserti var. deserti)
Synonym
Agave deserti subsp. simplex
(Under Agave deserti var. simplex)
Synonym
Agave deserti var. desertiDESERT AGAVENative
Agave deserti var. simplexSIMPLE DESERT AGAVENative
Agave eborispina
(Under Agave utahensis var. eborispina)
Synonym
Agave nevadensis
(Under Agave utahensis var. nevadensis)
Synonym
Agave orcuttiana
(Under Agave shawii var. shawii)
Synonym
Agave pachyacantha
(Under Agave shawii var. shawii)
Synonym
Agave shawii var. shawiiSHAW AGAVENative
Agave utahensisUTAH AGAVENative
Agave utahensis var. eborispinaIVORY-SPINED AGAVENative
Agave utahensis var. nevadensisCLARK MOUNTAIN AGAVENative
Ageratina
  ↳  Key to Ageratina
SNAKEROOT
Ageratina adenophoraCROFTON WEEDNaturalized
Ageratina herbaceaDESERT AGERATINANative
Ageratina occidentalisWESTERN SNAKEROOTNative
Ageratina shastensisSHASTA AGERATINANative
Ageratum conyzoides
(Under Asteraceae (Compositae))
Mentioned in
a note
Agnorhiza bolanderi
(Under Wyethia bolanderi)
Synonym
Agnorhiza elata
(Under Wyethia elata)
Synonym
Agnorhiza invenusta
(Under Wyethia invenusta)
Synonym
Agnorhiza ovata
(Under Wyethia ovata)
Synonym
Agnorhiza reticulata
(Under Wyethia reticulata)
Synonym
Agoseris
  ↳  Key to Agoseris
Agoseris ×dasycarpaNative
Agoseris ×elataNative
Agoseris apargioidesNative
Agoseris apargioides subsp. maritima
(Under Agoseris apargioides var. maritima)
Synonym
Agoseris apargioides var. apargioidesNative
Agoseris apargioides var. eastwoodiaeNative
Agoseris apargioides var. maritimaNative
Agoseris aurantiaca
(Under Agoseris ×elata)
Mentioned in
a note
Agoseris aurantiaca
(Under Agoseris grandiflora var. grandiflora)
Mentioned in
a note
Agoseris aurantiaca
(Under Agoseris grandiflora var. leptophylla)
Mentioned in
a note
Agoseris aurantiaca
(Under Agoseris monticola)
Mentioned in
a note
Agoseris aurantiaca
(Under Agoseris parviflora)
Mentioned in
a note
Agoseris aurantiaca var. aurantiacaNative
Agoseris californica
(Under Agoseris heterophylla var. cryptopleura)
Synonym
Agoseris cinerea
(Under Agoseris grandiflora var. grandiflora)
Synonym
Agoseris decumbens
(Under Agoseris ×dasycarpa)
Synonym
Agoseris eastwoodiae
(Under Agoseris apargioides var. eastwoodiae)
Synonym
Agoseris elata
(Under Agoseris ×elata)
Synonym
Agoseris glauca
(Under Agoseris aurantiaca var. aurantiaca)
Mentioned in
a note
Agoseris glauca
(Under Agoseris monticola)
Mentioned in
a note
Agoseris glauca
(Under Agoseris parviflora)
Mentioned in
a note
Agoseris glauca var. agrestis
(Under Agoseris ×dasycarpa)
Mentioned in
a note
Agoseris glauca var. dasycephala
(Under Agoseris monticola)
Synonym
Agoseris glauca var. glaucaNative
Agoseris glauca var. laciniata
(Under Agoseris parviflora)
Synonym
Agoseris glauca var. monticola
(Under Agoseris monticola)
Synonym
Agoseris gracilens
(Under Agoseris aurantiaca var. aurantiaca)
Synonym
Agoseris grandifloraNative
Agoseris grandiflora var. grandifloraNative
Agoseris grandiflora var. laciniata
(Under Agoseris ×elata)
Synonym
Agoseris grandiflora var. leptophyllaNative
Agoseris greenei
(Under Agoseris aurantiaca var. aurantiaca)
Synonym
Agoseris heterophyllaNative
Agoseris heterophylla var. californica
(Under Agoseris heterophylla var. cryptopleura)
Synonym
Agoseris heterophylla var. crenulata
(Under Agoseris heterophylla var. cryptopleura)
Synonym
Agoseris heterophylla var. cryptopleuraNative
Agoseris heterophylla var. heterophyllaNative
Agoseris heterophylla var. turgida
(Under Agoseris heterophylla var. cryptopleura)
Synonym
Agoseris hirsutaNative
Agoseris intermedia
(Under Agoseris grandiflora var. grandiflora)
Synonym
Agoseris laciniata
(Under Agoseris ×elata)
Synonym
Agoseris lackschewitzii
(Under Agoseris aurantiaca var. aurantiaca)
Synonym
Agoseris longula
(Under Agoseris glauca var. glauca)
Synonym
Agoseris major
(Under Agoseris heterophylla var. cryptopleura)
Synonym
Agoseris maritima
(Under Agoseris apargioides var. eastwoodiae)
Synonym
Agoseris maritima
(Under Agoseris apargioides var. maritima)
Synonym
Agoseris marshallii
(Under Agoseris grandiflora var. grandiflora)
Synonym
Agoseris monticolaNative
Agoseris obtusifolia
(Under Agoseris grandiflora var. grandiflora)
Synonym
Agoseris parvifloraNative
Agoseris plebeia
(Under Agoseris grandiflora var. grandiflora)
Synonym
Agoseris retrorsaNative
Agoseris tenuifolia
(Under Agoseris ×elata)
Synonym
Agrimonia
  ↳  Key to Agrimonia
AGRIMONY
Agrimonia brittoniana
(Under Agrimonia striata)
Synonym
Agrimonia gryposepalaCOMMON AGRIMONYNative
Agrimonia macrocarpa
(Under Agrimonia gryposepala)
Synonym
Agrimonia parviflora var. macrocarpa
(Under Agrimonia gryposepala)
Synonym
Agrimonia striataBRITTON'S AGRIMONY, GROOVED AGRIMONYNative
Agrimonia striata var. campanulata
(Under Agrimonia striata)
Synonym
Agropogon lutosus
(Under Agrostis)
Mentioned in
a note
AgropyronCRESTED WHEAT GRASS
Agropyron cristatum
(Under Elymus trachycaulus subsp. trachycaulus)
Mentioned in
a note
Agropyron cristatum subsp. desertorum
(Under Agropyron cristatum subsp. pectinatum)
Synonym
Agropyron cristatum subsp. pectinatumNaturalized
Agropyron dasystachyum
(Under Elymus lanceolatus subsp. lanceolatus)
Synonym
Agropyron desertorum
(Under Agropyron cristatum subsp. pectinatum)
Synonym
Agropyron elongatum
(Under Elymus ponticus)
Synonym
Agropyron fragile
(Under Agropyron)
Mentioned in
a note
Agropyron intermedium
(Under Elymus hispidus)
Synonym
Agropyron junceum
(Under Elymus)
Mentioned in
a note
Agropyron parishii
(Under Elymus stebbinsii)
Synonym
Agropyron pringlei
(Under Elymus sierrae)
Synonym
Agropyron repens
(Under Elymus repens)
Synonym
Agropyron riparium
(Under Elymus lanceolatus subsp. lanceolatus)
Synonym
Agropyron saundersii
(Under Elymus elymoides)
Mentioned in
a note
Agropyron saxicola
(Under Elymus elymoides)
Mentioned in
a note
Agropyron saxicola
(Under Elymus spicatus)
Mentioned in
a note
Agropyron scribneri
(Under Elymus scribneri)
Synonym
Agropyron smithii
(Under Elymus smithii)
Synonym
Agropyron spicatum
(Under Elymus spicatus)
Synonym
Agropyron trachycaulum
(Under Elymus trachycaulus subsp. trachycaulus)
Synonym
Agropyron trichophorum
(Under Elymus hispidus)
Synonym
AgrostemmaCORN-COCKLE
Agrostemma githago var. githagoNaturalized
Agrostis
  ↳  Key to Agrostis
BENT GRASS
Agrostis alba
(Under Agrostis gigantea)
Synonym
Agrostis alba var. alba
(Under Agrostis stolonifera)
Synonym
Agrostis alba var. palustris
(Under Agrostis stolonifera)
Synonym
Agrostis ampla
(Under Agrostis exarata)
Synonym
Agrostis aristiglumis
(Under Agrostis microphylla)
Synonym
Agrostis avenaceaPACIFIC BENT GRASSNaturalized
Agrostis blasdaleiBLASDALE'S BENT GRASSNative
Agrostis blasdalei var. marinensis
(Under Agrostis blasdalei)
Synonym
Agrostis californica
(Under Agrostis densiflora)
Synonym
Agrostis capillarisCOLONIAL BENTNaturalized
Agrostis clivicola
(Under Agrostis densiflora)
Synonym
Agrostis clivicola var. punta-reyesensis
(Under Agrostis densiflora)
Synonym
Agrostis densifloraCALIFORNIA BENT GRASSNative
Agrostis diegoensis
(Under Agrostis pallens)
Synonym
Agrostis elliottianaSIERRA BENT GRASSNative
Agrostis exarataSPIKE BENT GRASSNative
Agrostis exarata var. monolepis
(Under Agrostis exarata)
Synonym
Agrostis exigua
(Under Agrostis elliottiana)
Synonym
Agrostis filiformis
(Under Agrostis avenacea)
Synonym
Agrostis giganteaREDTOPNaturalized
Agrostis halliiHALL'S BENT GRASSNative
Agrostis hendersoniiHENDERSON'S BENT GRASSNative
Agrostis hooveriHOOVER'S BENT GRASSNative
Agrostis humilisMOUNTAIN BENT GRASSNative
Agrostis idahoensisIDAHO REDTOPNative
Agrostis kennedyana
(Under Agrostis tandilensis)
Synonym
Agrostis lacuna-vernalisVERNAL POOL BENT GRASSNative
Agrostis lepida
(Under Agrostis pallens)
Synonym
Agrostis longiligula var. australis
(Under Agrostis exarata)
Synonym
Agrostis microphyllaSMALL-LEAF BENT GRASSNative
Agrostis microphylla var. hendersonii
(Under Agrostis hendersonii)
Synonym
Agrostis microphylla var. intermedia
(Under Agrostis microphylla)
Synonym
Agrostis nebulosa
(Under Agrostis)
Mentioned in
a note
Agrostis oregonensisOREGON REDTOPNative
Agrostis pallensDUNE BENT GRASSNative
Agrostis scabraROUGH BENT GRASSNative
Agrostis scabra var. geminata
(Under Agrostis scabra)
Synonym
Agrostis semiverticillata
(Under Polypogon viridis)
Synonym
Agrostis stoloniferaCREEPING BENTNaturalized
Agrostis tandilensisKENNEDY'S BENT GRASSNaturalized
Agrostis tenuis
(Under Agrostis capillaris)
Synonym
Agrostis tenuis
(Under Agrostis idahoensis)
Synonym
Agrostis thurberiana
(Under Agrostis humilis)
Synonym
Agrostis variabilisMOUNTAIN BENT GRASSNative
Agrostis viridis
(Under Polypogon viridis)
Synonym
Agrostis viridis
(Under Agrostis)
Mentioned in
a note
Ailanthus
Ailanthus altissimaTREE OF HEAVENNaturalized
Aira
  ↳  Key to Aira
Aira caryophylleaSILVER HAIR GRASSNaturalized
Aira caryophyllea var. capillaris
(Under Aira elegans)
Synonym
Aira caryophyllea var. cupaniana
(Under Aira)
Mentioned in
a note
Aira cupaniana
(Under Aira)
Mentioned in
a note
Aira elegansELEGANT HAIR GRASSNaturalized
Aira elegantissima
(Under Aira elegans)
Synonym
Aira praecoxEARLY HAIR GRASSNaturalized
Aira pulchella
(Under Aira elegans)
Synonym
Aizoaceae
  ↳  Key to Aizoaceae
FIG-MARIGOLD or ICEPLANT FAMILY
Ajuga iva
(Under Iva)
Mentioned in
a note
Albizia
  ↳  Key to Albizia
Albizia julibrissinSILK TREE, MIMOSANaturalized
Albizia lophanthaPLUME ACACIANaturalized
Alcea
Alcea roseaHOLLYHOCKNaturalized
Alchemilla occidentalis
(Under Aphanes occidentalis)
Synonym
Alhagi
Alhagi maurorumCAMEL THORNNaturalized
Alhagi pseudalhagi
(Under Alhagi maurorum)
Synonym
Aliciella
  ↳  Key to Aliciella
Aliciella humillimaSMALLEST ALICIELLANative
Aliciella hutchinsifoliaDESERT PALE ALICIELLANative
Aliciella latifolia subsp. imperialis
(Under Aliciella latifolia subsp. latifolia)
Mentioned in
a note
Aliciella latifolia subsp. latifoliaBROAD-LEAVED ALICIELLANative
Aliciella leptomeriaSAND ALICIELLANative
Aliciella lottiaeLOTT'S ALICIELLANative
Aliciella micromeriaDAINTY ALICIELLANative
Aliciella monoensisMONO LAKE ALICIELLANative
Aliciella ripleyiRIPLEY'S ALICIELLANative
Aliciella subacaulis
(Under Aliciella monoensis)
Synonym
Aliciella triodonCOYOTE GILIANative
Aliciella triodon var. humillima
(Under Aliciella humillima)
Synonym
Alisma
  ↳  Key to Alisma
WATER-PLANTAIN
Alisma geyeri
(Under Alisma gramineum)
Synonym
Alisma gramineumGRASS ALISMANative
Alisma lanceolatumNaturalized
Alisma plantago-aquatica
(Under Alisma triviale)
Synonym
Alisma subcordatum
(Under Alisma triviale)
Synonym
Alisma trivialeNative
Alismataceae
  ↳  Key to Alismataceae
WATER-PLANTAIN FAMILY
AllenrolfeaIODINE BUSH
Allenrolfea occidentalisNative
Alliaceae
  ↳  Key to Alliaceae
ONION or GARLIC FAMILY
AllioniaWINDMILLS
Allionia incarnata
  ↳  Key to Allionia incarnata
Native
Allionia incarnata var. incarnataNative
Allionia incarnata var. nudata
(Under Allionia incarnata var. incarnata)
Synonym
Allionia incarnata var. villosaNative
Allium
  ↳  Key to Allium
ONION, GARLIC
Allium abramsiiNative
Allium acuminatumNative
Allium acuminatum var. gracile
(Under Allium amplectens)
Synonym
Allium amplectensNative
Allium ancepsNative
Allium anserinum
(Under Allium fimbriatum var. fimbriatum)
Synonym
Allium atrorubensNative
Allium atrorubens var. atrorubensGREAT BASIN ONIONNative
Allium atrorubens var. cristatumINYO ONIONNative
Allium atrorubens var. inyonis
(Under Allium atrorubens var. cristatum)
Synonym
Allium attenuifolium
(Under Allium amplectens)
Synonym
Allium attenuifolium var. monospermum
(Under Allium amplectens)
Synonym
Allium bisceptrumNative
Allium bisceptrum var. bisceptrum
(Under Allium bisceptrum)
Synonym
Allium bolanderiNative
Allium bolanderi var. bolanderiNative
Allium bolanderi var. mirabileNative
Allium bolanderi var. stenanthum
(Under Allium bolanderi var. bolanderi)
Synonym
Allium breweri
(Under Allium falcifolium)
Synonym
Allium burlewiiNative
Allium campanulatumNative
Allium cepaWaif
Allium cratericolaNative
Allium crispumNative
Allium croceum
(Under Bloomeria crocea)
Synonym
Allium davisiae
(Under Allium lacunosum var. davisiae)
Synonym
Allium denticulatumNative
Allium denticulatum
(Under Allium denticulatum)
Synonym
Allium diabloense
(Under Allium diabolense)
Synonym
Allium diabolenseNative
Allium dichlamydeumNative
Allium falcifoliumNative
Allium falcifolium var. breweri
(Under Allium falcifolium)
Synonym
Allium falcifolium var. demissum
(Under Allium siskiyouense)
Synonym
Allium fimbriatumNative
Allium fimbriatum subsp. parryi
(Under Allium parryi)
Synonym
Allium fimbriatum var. aboriginum
(Under Allium fimbriatum var. fimbriatum)
Synonym
Allium fimbriatum var. abramsii
(Under Allium abramsii)
Synonym
Allium fimbriatum var. denticulatum
(Under Allium denticulatum)
Synonym
Allium fimbriatum var. diabolense
(Under Allium diabolense)
Synonym
Allium fimbriatum var. fimbriatumNative
Allium fimbriatum var. mohavenseNative
Allium fimbriatum var. munzii
(Under Allium munzii)
Synonym
Allium fimbriatum var. purdyiPURDY'S ONIONNative
Allium fimbriatum var. sharsmithiae
(Under Allium sharsmithiae)
Synonym
Allium haematochitonNative
Allium hickmaniiHICKMAN'S ONIONNative
Allium hoffmaniiBEEGUM ONIONNative
Allium howelliiNative
Allium howellii subsp. sanbenitense
(Under Allium howellii var. sanbenitense)
Synonym
Allium howellii var. clokeyiMOUNT PINOS ONIONNative
Allium howellii var. howelliiNative
Allium howellii var. sanbenitenseNative
Allium howellii var. sanbenitense
(Under Allium howellii var. sanbenitense)
Synonym
Allium hyalinumNative
Allium intactum
(Under Allium sanbornii var. congdonii)
Synonym
Allium jepsoniiJEPSON'S ONIONNative
Allium jepsonii
(Under Allium jepsonii)
Synonym
Allium lacteum
(Under Triteleia hyacinthina)
Synonym
Allium lacunosumNative
Allium lacunosum var. davisiaeNative
Allium lacunosum var. kernenseNative
Allium lacunosum var. kernensis
(Under Allium lacunosum var. kernense)
Synonym
Allium lacunosum var. lacunosumNative
Allium lacunosum var. micranthumNative
Allium lemmoniiNative
Allium marviniiYUCAIPA ONIONNative
Allium membranaceumNative
Allium monospermum
(Under Allium amplectens)
Synonym
Allium monticolaNative
Allium monticola subsp. keckii
(Under Allium monticola)
Synonym
Allium monticola var. keckii
(Under Allium monticola)
Synonym
Allium munziiMUNZ'S ONIONNative
Allium neapolitanumNaturalized
Allium nevadenseNEVADA ONIONNative
Allium nevadense var. cristatum
(Under Allium atrorubens var. cristatum)
Synonym
Allium obtusumNative
Allium obtusum var. conspicuumNative
Allium obtusum var. obtusumNative
Allium occidentale
(Under Allium amplectens)
Synonym
Allium paniculatum var. paniculatumNaturalized
Allium parishiiPARISH'S ONIONNative
Allium parishii var. keckii
(Under Allium monticola)
Synonym
Allium parryiNative
Allium parvumNative
Allium peirsonii
(Under Allium monticola)
Synonym
Allium peninsulareNative
Allium peninsulare var. franciscanumFRANCISCAN ONIONNative
Allium peninsulare var. peninsulareNative
Allium platycauleNative
Allium praecoxNative
Allium punctumDOTTED ONIONNative
Allium sanborniiNative
Allium sanbornii var. congdoniiCONGDON'S ONIONNative
Allium sanbornii var. jepsonii
(Under Allium jepsonii)
Synonym
Allium sanbornii var. sanborniiSANBORN'S ONIONNative
Allium sanbornii var. tuolumnense
(Under Allium tuolumnense)
Synonym
Allium sativumGARLICWaif
Allium serraNative
Allium serratum
(Under Allium amplectens)
Synonym
Allium serratum
(Under Allium serra)
Synonym
Allium sharsmithae
(Under Allium sharsmithiae)
Synonym
Allium sharsmithiaeSHARSMITH'S ONIONNative
Allium sharsmithiae
(Under Allium sharsmithiae)
Synonym
Allium shevockiiSPANISH NEEDLE ONIONNative
Allium siskiyouenseSISKIYOU ONIONNative
Allium stenanthum
(Under Allium bolanderi var. bolanderi)
Synonym
Allium tilingii
(Under Triteleia hyacinthina)
Synonym
Allium tolmiei var. tolmieiNative
Allium tribracteatumTHREE-BRACTED ONIONNative
Allium tribracteatum var. jacintense
(Under Allium cratericola)
Synonym
Allium triquetrumNaturalized
Allium tuolumnenseRAWHIDE HILL ONIONNative
Allium tuolumnense
(Under Allium tuolumnense)
Synonym
Allium unifoliumNative
Allium validumNative
Allium vinealeNaturalized
Allium yosemitenseYOSEMITE ONIONNative
Allocarya californica var. minuta
(Under Plagiobothrys reticulatus var. reticulatus)
Mentioned in
a note
Allocarya parishii
(Under Plagiobothrys parishii)
Synonym
Allolepis texana
(Under Poaceae (Gramineae))
Mentioned in
a note
Allophyllum
  ↳  Key to Allophyllum
Allophyllum divaricatumNative
Allophyllum gilioidesNative
Allophyllum gilioides subsp. gilioidesNative
Allophyllum gilioides subsp. violaceumNative
Allophyllum glutinosumNative
Allophyllum integrifoliumNative
Allophyllum violaceum
(Under Allophyllum gilioides subsp. violaceum)
Synonym
AllotropaSUGAR STICK
Allotropa virgataNative
AlmutasterMARSH ALKALI ASTER
Almutaster pauciflorusNative
Alnus
  ↳  Key to Alnus
ALDER
Alnus cordataITALIAN ALDERWaif
Alnus fruticosa
(Under Alnus viridis subsp. fruticosa)
Synonym
Alnus incana subsp. tenuifoliaMOUNTAIN ALDERNative
Alnus oregona
(Under Alnus rubra)
Synonym
Alnus rhombifoliaWHITE ALDERNative
Alnus rubraRED ALDERNative
Alnus sinuata
(Under Alnus viridis subsp. sinuata)
Synonym
Alnus tenuifolia
(Under Alnus incana subsp. tenuifolia)
Synonym
Alnus viridisGREEN ALDERNative
Alnus viridis subsp. fruticosaSIBERIAN ALDERNative
Alnus viridis subsp. sinuataTHINLEAF or SITKA ALDERNative
Aloe
  ↳  Key to Aloe
Aloe ×schoenlandiiNaturalized
Aloe maculataNaturalized
Aloe saponaria
(Under Aloe maculata)
Synonym
Aloe saponaria
(Under Aloe ×schoenlandii)
Synonym
Aloe striata
(Under Aloe ×schoenlandii)
Mentioned in
a note
Aloe striatula
(Under Aloe)
Mentioned in
a note
Alopecurus
  ↳  Key to Alopecurus
FOXTAIL
Alopecurus aequalisSHORT-AWN FOXTAILNative
Alopecurus aequalis var. aequalisNative
Alopecurus aequalis var. sonomensisSONOMA ALOPECURUSNative
Alopecurus aristulatus
(Under Alopecurus aequalis var. aequalis)
Synonym
Alopecurus californicus
(Under Alopecurus saccatus)
Synonym
Alopecurus carolinianusNative
Alopecurus geniculatusWATER FOXTAILNative
Alopecurus howellii
(Under Alopecurus saccatus)
Synonym
Alopecurus myosuroidesNaturalized
Alopecurus pallescens
(Under Alopecurus geniculatus)
Synonym
Alopecurus pratensisMEADOW FOXTAILNaturalized
Alopecurus saccatusNative
Aloysia
Aloysia wrightiiWRIGHT'S BEEBRUSHNative
Aloysia wrightii
(Under Aloysia wrightii)
Synonym
Alternanthera
  ↳  Key to Alternanthera
Alternanthera caracasanaNaturalized
Alternanthera ficoidea var. bettzickiana
(Under Alternanthera)
Mentioned in
a note
Alternanthera lanuginosa
(Under Tidestromia lanuginosa)
Synonym
Alternanthera peploides
(Under Alternanthera caracasana)
Synonym
Alternanthera philoxeroidesALLIGATOR WEEDNaturalized
Alternanthera pungens
(Under Alternanthera caracasana)
Synonym
Alternanthera repens
(Under Alternanthera caracasana)
Synonym
Alternanthera sessilis
(Under Alternanthera)
Mentioned in
a note
Althaea rosea
(Under Alcea rosea)
Synonym
Alyogyne
Alyogyne huegeliiBLUE HIBISCUSWaif
Alyssum
  ↳  Key to Alyssum
Alyssum alyssoidesNaturalized
Alyssum desertorumNaturalized
Alyssum minus subsp. micranthum
(Under Alyssum simplex)
Synonym
Alyssum minus var. micranthum
(Under Alyssum simplex)
Synonym
Alyssum simplexNaturalized
Alyssum strigosum
(Under Alyssum)
Mentioned in
a note
Amaranthaceae
  ↳  Key to Amaranthaceae
AMARANTH FAMILY
Amaranthus
  ↳  Key to Amaranthus
AMARANTH, PIGWEED
Amaranthus albusTUMBLEWEEDNaturalized
Amaranthus arenicolaSAND AMARANTHNaturalized
Amaranthus blitoidesPROCUMBENT PIGWEEDNative
Amaranthus blitum subsp. emarginatusWaif
Amaranthus bouchonii
(Under Amaranthus powellii)
Synonym
Amaranthus californicusCALIFORNIAN AMARANTHNative
Amaranthus caudatusLOVE-LIES-BLEEDING, FOXTAIL AMARANTH, QUILETEWaif
Amaranthus cruentusPURPLE AMARANTHWaif
Amaranthus deflexusNaturalized
Amaranthus emarginatus
(Under Amaranthus blitum subsp. emarginatus)
Synonym
Amaranthus fimbriatusFRINGED AMARANTHNative
Amaranthus graecizans
(Under Amaranthus albus)
Synonym
Amaranthus graecizans
(Under Amaranthus blitoides)
Synonym
Amaranthus hybridusSMOOTH PIGWEED, GREEN AMARANTHNaturalized
Amaranthus hypochondriacusPRINCE'S-FEATHERWaif
Amaranthus palmeriPALMER'S AMARANTHNative
Amaranthus powelliiPOWELL'S AMARANTHNative
Amaranthus powellii subsp. bouchonii
(Under Amaranthus powellii)
Synonym
Amaranthus retroflexusREDROOT PIGWEEDNaturalized
Amaranthus rudis
(Under Amaranthus tuberculatus var. rudis)
Synonym
Amaranthus spinosusSPINY AMARANTH, THORNY AMARANTHWaif
Amaranthus torreyiTORREY'S AMARANTHNative
Amaranthus tuberculatus
(Under Amaranthus)
Mentioned in
a note
Amaranthus tuberculatus var. rudisCOMMON WATERHEMPNaturalized
Amaranthus viridisSLENDER AMARANTHWaif
Amaranthus watsoniiWATSON'S AMARANTHNative
Amaryllidaceae
  ↳  Key to Amaryllidaceae
AMARYLLIS FAMILY
Amaryllis
Amaryllis belladonnaNAKED LADIESNaturalized
Amauriopsis dissecta
(Under Hymenothrix dissecta)
Synonym
Amblyopappus
Amblyopappus pusillusNative
Ambrosia
  ↳  Key to Ambrosia
RAGWEED, BUR-SAGE, BURROBRUSH
Ambrosia ×platyspinaHYBRID BUR-SAGESpontaneous hybrid
Ambrosia acanthicarpaANNUAL BUR-SAGENative
Ambrosia ambrosioidesBIG BUR-SAGENative
Ambrosia artemisiifoliaCOMMON RAGWEEDNaturalized
Ambrosia chamissonisBEACH BUR-SAGENative
Ambrosia chamissonis var. bipinnatisecta
(Under Ambrosia chamissonis)
Synonym
Ambrosia chenopodiifoliaSAN DIEGO BUR-SAGENative
Ambrosia confertifloraNative
Ambrosia dumosaWHITE BUR-SAGENative
Ambrosia eriocentraWOOLLY BUR-SAGENative
Ambrosia ilicifoliaHOLLY-LEAVED BUR-SAGENative
Ambrosia monogyraSINGLEWHORL BURROBRUSHNative
Ambrosia psilostachyaWESTERN RAGWEEDNative
Ambrosia psilostachya var. californica
(Under Ambrosia psilostachya)
Synonym
Ambrosia pumilaSAN DIEGO AMBROSIANative
Ambrosia salsolaCOMMON BURROBRUSH, CHEESEBUSHNative
Ambrosia salsola var. fasciculata
(Under Ambrosia salsola var. salsola)
Synonym
Ambrosia salsola var. pentalepisNative
Ambrosia salsola var. salsolaNative
Ambrosia trifidaGIANT RAGWEEDWaif
Amelanchier
  ↳  Key to Amelanchier
SERVICE-BERRY
Amelanchier alnifoliaNative
Amelanchier alnifolia var. pumilaNative
Amelanchier alnifolia var. semiintegrifoliaNative
Amelanchier florida
(Under Amelanchier alnifolia var. semiintegrifolia)
Synonym
Amelanchier pallida
(Under Amelanchier utahensis)
Mentioned in
a note
Amelanchier pumila
(Under Amelanchier alnifolia var. pumila)
Synonym
Amelanchier utahensisUTAH SERVICE-BERRYNative
Amelanchier utahensis var. covillei
(Under Amelanchier utahensis)
Mentioned in
a note
Amelichloa brachychaeta
(Under Stipa brachychaeta)
Synonym
Amelichloa caudata
(Under Stipa)
Mentioned in
a note
Amelichloa clandestina
(Under Stipa)
Mentioned in
a note
Ammannia
  ↳  Key to Ammannia
Ammannia coccineaNative
Ammannia coccinea subsp. purpurea
(Under Ammannia coccinea)
Synonym
Ammannia coccinea subsp. robusta
(Under Ammannia robusta)
Synonym
Ammannia robustaNative
Ammi
  ↳  Key to Ammi
Ammi majusNaturalized
Ammi visnagaBISNAGANaturalized
Ammobroma sonorae
(Under Pholisma sonorae)
Synonym
AmmophilaBEACHGRASS
Ammophila arenariaEUROPEAN BEACHGRASSNaturalized
Ammophila breviligulata
(Under Ammophila arenaria)
Mentioned in
a note
Ammoselinum
Ammoselinum giganteumDESERT SAND-PARSLEYNative
Amorpha
  ↳  Key to Amorpha
FALSE INDIGO
Amorpha californicaNative
Amorpha californica var. californicaNative
Amorpha californica var. napensisNAPA FALSE INDIGONative
Amorpha fruticosaNative
Amorpha fruticosa var. occidentalis
(Under Amorpha fruticosa)
Synonym
Amorphophallus titanum
(Under Araceae)
Mentioned in
a note
Ampelodesmos mauritanica
(Under Stipa mauritanica)
Synonym
Ampelodesmos mauritanicus
(Under Stipa mauritanica)
Synonym
Amphibromus nervosus
(Under Poaceae (Gramineae))
Mentioned in
a note
AmphipappusCHAFF-BUSH
Amphipappus fremontii
  ↳  Key to Amphipappus fremontii
Native
Amphipappus fremontii var. fremontiiNative
Amphipappus fremontii var. spinosusNative
AmphiscirpusNEVADA BULRUSH
Amphiscirpus nevadensisNative
Amsinckia
  ↳  Key to Amsinckia
FIDDLENECK
Amsinckia douglasianaDOUGLAS' FIDDLENECKNative
Amsinckia eastwoodiaeEASTWOOD'S FIDDLENECKNative
Amsinckia furcataFORKED FIDDLENECKNative
Amsinckia gloriosa
(Under Amsinckia tessellata var. gloriosa)
Synonym
Amsinckia grandifloraLARGE-FLOWERED FIDDLENECKNative
Amsinckia helleri
(Under Amsinckia retrorsa)
Synonym
Amsinckia intermediaCOMMON FIDDLENECKNative
Amsinckia intermedia var. eastwoodiae
(Under Amsinckia eastwoodiae)
Synonym
Amsinckia intermedia var. echinata
(Under Amsinckia intermedia)
Synonym
Amsinckia lunarisBENT-FLOWERED FIDDLENECKNative
Amsinckia lycopsoidesBUGLOSS-FLOWERED FIDDLENECKNative
Amsinckia menziesiiCOMMON FIDDLENECK, SMALL-FLOWERED FIDDLENECKNative
Amsinckia menziesii var. intermedia
(Under Amsinckia intermedia)
Synonym
Amsinckia menziesii var. intermedia
(Under Amsinckia douglasiana)
Mentioned in
a note
Amsinckia menziesii var. intermedia
(Under Amsinckia eastwoodiae)
Mentioned in
a note
Amsinckia menziesii var. intermedia
(Under Amsinckia lycopsoides)
Mentioned in
a note
Amsinckia menziesii var. menziesii
(Under Amsinckia menziesii)
Synonym
Amsinckia menziesii var. menziesii
(Under Amsinckia retrorsa)
Mentioned in
a note
Amsinckia micrantha
(Under Amsinckia menziesii)
Synonym
Amsinckia retrorsaRIGID FIDDLENECKNative
Amsinckia scouleri
(Under Amsinckia spectabilis var. spectabilis)
Synonym
Amsinckia spectabilisNative
Amsinckia spectabilis var. microcarpaMESA FIDDLENECKNative
Amsinckia spectabilis var. sancti-nicolai
(Under Amsinckia spectabilis var. spectabilis)
Synonym
Amsinckia spectabilis var. spectabilisSEASIDE FIDDLENECKNative
Amsinckia straminea
(Under Amsinckia lycopsoides)
Synonym
Amsinckia tessellataNative
Amsinckia tessellata var. elegans
(Under Amsinckia tessellata var. tessellata)
Synonym
Amsinckia tessellata var. gloriosaCARRIZO FIDDLENECKNative
Amsinckia tessellata var. tessellataDESERT FIDDLENECKNative
Amsinckia vernicosaWAXY FIDDLENECKNative
Amsinckia vernicosa var. furcata
(Under Amsinckia furcata)
Synonym
Amsinckia vernicosa var. vernicosa
(Under Amsinckia vernicosa)
Synonym
Amsonia
Amsonia brevifolia
(Under Amsonia tomentosa)
Synonym
Amsonia tomentosaNative
Amsonia tomentosa var. tomentosa
(Under Amsonia tomentosa)
Synonym
Anacardiaceae
  ↳  Key to Anacardiaceae
SUMAC or CASHEW FAMILY
Anacharis canadensis
(Under Elodea canadensis)
Synonym
Anacharis nuttallii
(Under Elodea nuttallii)
Synonym
Anagallis arvensis
(Under Lysimachia arvensis)
Synonym
Anagallis arvensis subsp. arvensis
(Under Lysimachia arvensis)
Synonym
Anagallis arvensis subsp. foemina
(Under Lysimachia arvensis)
Synonym
Anagallis arvensis var. caerulea
(Under Lysimachia arvensis)
Synonym
Anagallis caerulea
(Under Lysimachia arvensis)
Synonym
Anagallis foemina
(Under Lysimachia arvensis)
Synonym
Anagallis linifolia
(Under Lysimachia monelli)
Synonym
Anagallis minima
(Under Lysimachia minima)
Synonym
Anagallis monelli
(Under Lysimachia monelli)
Synonym
AnaphalisPEARLY EVERLASTING
Anaphalis margaritaceaNative
Anchusa
  ↳  Key to Anchusa
ALKANET
Anchusa arvensis
(Under Anchusa)
Mentioned in
a note
Anchusa azureaGARDEN ALKANETWaif
Anchusa officinalisCOMMON ALKANETNaturalized
Anchusa procera
(Under Anchusa officinalis)
Synonym
Ancistrocarphus
  ↳  Key to Ancistrocarphus
GROUNDSTAR, WOOLLY FISHHOOKS
Ancistrocarphus filagineusWOOLLY FISHHOOKSNative
Ancistrocarphus keiliiSANTA YNEZ GROUNDSTARNative
Andrena nigrihirta
(Under Darlingtonia californica)
Mentioned in
a note
Andromeda venulosa
(Under Arctostaphylos hookeri subsp. hookeri)
Synonym
Andropogon
  ↳  Key to Andropogon
BLUESTEM
Andropogon barbinodis
(Under Bothriochloa barbinodis)
Synonym
Andropogon glomeratus var. pumilus
(Under Andropogon glomeratus var. scabriglumis)
Mentioned in
a note
Andropogon glomeratus var. scabriglumisSOUTHWESTERN BUSHY BLUESTEMNative
Andropogon ischaemum
(Under Bothriochloa ischaemum)
Synonym
Andropogon torreyanus
(Under Bothriochloa laguroides subsp. torreyana)
Synonym
Andropogon virginicus var. virginicusBROOMSEDGE BLUESTEMNaturalized
Androsace
  ↳  Key to Androsace
Androsace acuta
(Under Androsace elongata subsp. acuta)
Synonym
Androsace arizonica
(Under Androsace occidentalis)
Synonym
Androsace elongata subsp. acutaCALIFORNIA ANDROSACENative
Androsace filiformisSLENDER-STEMMED ANDROSACENative
Androsace occidentalisWESTERN ROCK-JASMINENative
Androsace occidentalis var. acuta
(Under Androsace elongata subsp. acuta)
Synonym
Androsace occidentalis var. simplex
(Under Androsace occidentalis)
Synonym
Androsace septentrionalisPYGMY-FLOWER ROCK-JASMINENative
Androsace septentrionalis subsp. puberulenta
(Under Androsace septentrionalis)
Synonym
Androsace septentrionalis subsp. subumbellata
(Under Androsace septentrionalis)
Synonym
Androstephium
Androstephium breviflorumSMALL-FLOWERED ANDROSTEPHIUMNative
Anelsonia
Anelsonia eurycarpaNative
Anemone
  ↳  Key to Anemone
ANEMONE
Anemone deltoideaNative
Anemone drummondii subsp. drummondii
(Under Anemone drummondii var. drummondii)
Synonym
Anemone drummondii var. drummondiiNative
Anemone drummondii var. lithophila
(Under Anemone drummondii var. drummondii)
Mentioned in
a note
Anemone grayiNative
Anemone lyalliiNative
Anemone multifida var. hudsoniana
(Under Anemone multifida var. multifida)
Synonym
Anemone multifida var. multifidaNative
Anemone occidentalisNative
Anemone oligantha
(Under Anemone lyallii)
Synonym
Anemone oregana
(Under Anemone grayi)
Mentioned in
a note
Anemone oregana
(Under Anemone lyallii)
Mentioned in
a note
Anemone oregana var. felix
(Under Anemone oregana var. oregana)
Mentioned in
a note
Anemone oregana var. oreganaNative
Anemone quinquefolia var. grayi
(Under Anemone grayi)
Synonym
Anemone quinquefolia var. lyallii
(Under Anemone lyallii)
Synonym
Anemone quinquefolia var. minor
(Under Anemone grayi)
Synonym
Anemone tuberosaNative
Anemopsis
Anemopsis californicaYERBA MANSANative
Anemopsis californica var. subglabra
(Under Anemopsis californica)
Synonym
Anethum
Anethum graveolensDILLNaturalized
Angelica
  ↳  Key to Angelica
Angelica argutaANGELICANative
Angelica breweriNative
Angelica californicaNative
Angelica calliiCALL'S ANGELICANative
Angelica genuflexaNative
Angelica hendersoniiNative
Angelica kingiiKING'S ANGELICANative
Angelica linearilobaNative
Angelica lineariloba var. culbertsonii
(Under Angelica lineariloba)
Synonym
Angelica lucidaSEA-WATCHNative
Angelica tomentosaNative
Angelica tomentosa var. californica
(Under Angelica californica)
Synonym
Angelica tomentosa var. hendersonii
(Under Angelica hendersonii)
Synonym
Anisocarpus
  ↳  Key to Anisocarpus
Anisocarpus madioidesWOODLAND TARWEEDNative
Anisocarpus scabridusSCABRID ALPINE TARPLANTNative
AnisocomaSCALEBUD
Anisocoma acaulisNative
Anisodontea
Anisodontea capensisCAPE MALLOWGarden and urban weed
Anisodontea elegans
(Under Anisodontea capensis)
Mentioned in
a note
Anisodontea julii
(Under Anisodontea capensis)
Mentioned in
a note
Anoda
  ↳  Key to Anoda
Anoda cristataVIOLETTASNaturalized
Anoda cristata var. digitata
(Under Anoda cristata)
Synonym
Anoda pentaschistaFIELD ANODAAgricultural weed
Anoda pentaschista var. obtusior
(Under Anoda pentaschista)
Synonym
Anotites diffusa
(Under Silene menziesii)
Synonym
AnrederaMADEIRA VINE
Anredera cordifoliaMIGNONETTE VINEJfp-4
Antennaria
  ↳  Key to Antennaria
PUSSY-TOES
Antennaria argenteaNative
Antennaria corymbosaNative
Antennaria dimorphaNative
Antennaria dioica var. kernensis
(Under Antennaria umbrinella)
Synonym
Antennaria flagellarisSTOLONIFEROUS PUSSY-TOESNative
Antennaria geyeriNative
Antennaria howellii subsp. howelliiNative
Antennaria lanata
(Under Antennaria)
Mentioned in
a note
Antennaria luzuloidesNative
Antennaria luzuloides subsp. aberransNative
Antennaria luzuloides subsp. luzuloidesNative
Antennaria marginataWHITE-MARGINED EVERLASTINGNative
Antennaria mediaNative
Antennaria media subsp. ciliata
(Under Antennaria pulchella)
Synonym
Antennaria media subsp. media
(Under Antennaria media)
Synonym
Antennaria media subsp. pulchella
(Under Antennaria pulchella)
Synonym
Antennaria microcephala
(Under Antennaria luzuloides subsp. aberrans)
Synonym
Antennaria microphyllaNative
Antennaria pulchellaBEAUTIFUL PUSSY-TOESNative
Antennaria pyramidata
(Under Antennaria luzuloides subsp. aberrans)
Synonym
Antennaria racemosaNative
Antennaria roseaNative
Antennaria rosea subsp. arida
(Under Antennaria rosea)
Mentioned in
a note
Antennaria rosea subsp. confinisNative
Antennaria rosea subsp. pulvinata
(Under Antennaria rosea)
Mentioned in
a note
Antennaria rosea subsp. roseaNative
Antennaria scabra
(Under Antennaria pulchella)
Synonym
Antennaria suffrutescensEVERGREEN EVERLASTINGNative
Antennaria umbrinellaNative
Anthemis
  ↳  Key to Anthemis
DOG-FENNEL, CHAMOMILE
Anthemis arvensisCORN CHAMOMILENaturalized
Anthemis arvensis var. agrestis
(Under Anthemis arvensis)
Synonym
Anthemis cotulaMAYWEEDNaturalized
Anthemis foetida
(Under Anthemis cotula)
Synonym
Anthemis fuscata
(Under Chamaemelum fuscatum)
Synonym
Anthemis tinctoria
(Under Cota tinctoria)
Synonym
Anthemis tinctoria
(Under Anthemis)
Mentioned in
a note
Anthoxanthum
  ↳  Key to Anthoxanthum
VERNAL GRASS, VANILLA GRASS
Anthoxanthum aristatum subsp. aristatumANNUAL VERNAL GRASSNaturalized
Anthoxanthum hirtum
(Under Anthoxanthum nitens subsp. nitens)
Synonym
Anthoxanthum hirtum
(Under Anthoxanthum)
Mentioned in
a note
Anthoxanthum nitens subsp. nitensVANILLA GRASSNative
Anthoxanthum occidentaleCALIFORNIA SWEET GRASSNative
Anthoxanthum odoratumSWEET VERNAL GRASSNaturalized
Anthriscus
Anthriscus caucalisBUR-CHERVILNaturalized
Anthriscus scandicina
(Under Anthriscus caucalis)
Synonym
Anthyllis vulneraria
(Under Fabaceae (Leguminosae))
Mentioned in
a note
Antirrhinum
  ↳  Key to Antirrhinum
SNAPDRAGON
Antirrhinum breweri
(Under Antirrhinum vexillocalyculatum subsp. breweri)
Synonym
Antirrhinum confertiflorum
(Under Mohavea confertiflora)
Synonym
Antirrhinum cornutumNative
Antirrhinum cornutum var. leptaleum
(Under Antirrhinum leptaleum)
Synonym
Antirrhinum coulterianumNative
Antirrhinum cyathiferum
(Under Pseudorontium cyathiferum)
Synonym
Antirrhinum cyathiferum
(Under Antirrhinum)
Mentioned in
a note
Antirrhinum filipesNative
Antirrhinum glandulosum
(Under Antirrhinum multiflorum)
Synonym
Antirrhinum kelloggiiNative
Antirrhinum kingiiNative
Antirrhinum leptaleumNative
Antirrhinum majusWaif
Antirrhinum multiflorumNative
Antirrhinum nuttallianumNative
Antirrhinum nuttallianum subsp. nuttallianumNative
Antirrhinum nuttallianum subsp. subsessileNative
Antirrhinum orontiumWaif
Antirrhinum ovatumOVAL-LEAVED SNAPDRAGONNative
Antirrhinum subcordatumDIMORPHIC SNAPDRAGONNative
Antirrhinum vexillo-calyculatum
(Under Antirrhinum vexillocalyculatum)
Synonym
Antirrhinum vexillocalyculatumNative
Antirrhinum vexillocalyculatum subsp. breweriNative
Antirrhinum vexillocalyculatum subsp. intermediumNative
Antirrhinum vexillocalyculatum subsp. vexillocalyculatumNative
Antirrhinum virgaTWIG-LIKE SNAPDRAGONNative
AnulocaulisRINGSTEM
Anulocaulis annulatusNative
Apera
  ↳  Key to Apera
Apera interruptaNaturalized
Apera spica-ventiNaturalized
Apetlorhamnus alnifolia
(Under Rhamnus alnifolia)
Synonym
Aphanes
Aphanes arvensis
(Under Aphanes occidentalis)
Mentioned in
a note
Aphanes microcarpa
(Under Aphanes occidentalis)
Mentioned in
a note
Aphanes occidentalisNative
Aphanisma
Aphanisma blitoidesAPHANISMANative
Apiaceae (Umbelliferae)
  ↳  Key to Apiaceae (Umbelliferae)
CARROT FAMILY
Apiastrum
Apiastrum angustifoliumNative
Apium
  ↳  Key to Apium
Apium graveolensCELERYNaturalized
Apium leptophyllum
(Under Cyclospermum leptophyllum)
Synonym
Apium nodiflorumWaif
Apocynaceae
  ↳  Key to Apocynaceae
DOGBANE FAMILY
Apocynum
  ↳  Key to Apocynum
DOGBANE, INDIAN HEMP
Apocynum ×floribundum Greene, pro sp.
(Under Apocynum androsaemifolium)
Synonym
Apocynum androsaemifoliumBITTER DOGBANENative
Apocynum androsaemifolium var. glabrum
(Under Apocynum androsaemifolium)
Synonym
Apocynum androsaemifolium var. glabrum
(Under Apocynum)
Mentioned in
a note
Apocynum androsaemifolium var. nevadense
(Under Apocynum androsaemifolium)
Synonym
Apocynum cannabinumINDIAN HEMPNative
Apocynum cannabinum var. glaberrimum
(Under Apocynum cannabinum)
Synonym
Apocynum cannabinum var. glaberrimum
(Under Apocynum)
Mentioned in
a note
Apocynum diversifolium
(Under Apocynum androsaemifolium)
Synonym
Apocynum medium var. floribundum
(Under Apocynum androsaemifolium)
Synonym
Apocynum medium var. floribundum
(Under Apocynum)
Mentioned in
a note
Apocynum oblongum
(Under Apocynum cannabinum)
Synonym
Apocynum palustre
(Under Apocynum cannabinum)
Synonym
Apocynum pumilum
(Under Apocynum androsaemifolium)
Synonym
Apocynum pumilum
(Under Apocynum)
Mentioned in
a note
Apocynum pumilum var. rhomboideum
(Under Apocynum androsaemifolium)
Synonym
Apocynum pumilum var. rhomboideum
(Under Apocynum)
Mentioned in
a note
Apocynum rhomboideum
(Under Apocynum androsaemifolium)
Synonym
Apocynum sibiricum var. salignum
(Under Apocynum cannabinum)
Synonym
Apocynum sibiricum var. salignum
(Under Apocynum)
Mentioned in
a note
Apocynum viarum
(Under Apocynum androsaemifolium)
Synonym
ApodanthaceaeSTEMSUCKER FAMILY
Aponogeton
Aponogeton distachyon
(Under Aponogeton distachyos)
Synonym
Aponogeton distachyosCAPE-PONDWEEDNaturalized
AponogetonaceaeCAPE-PONDWEED FAMILY
Aptenia
Aptenia cordifoliaBABY SUN-ROSENaturalized
Aptenia lancifolia
(Under Aptenia)
Mentioned in
a note
AquifoliaceaeHOLLY FAMILY
Aquilegia
  ↳  Key to Aquilegia
COLUMBINE
Aquilegia eximiaNative
Aquilegia fontinalis
(Under Aquilegia eximia)
Synonym
Aquilegia formosaNative
Aquilegia formosa f. anomala
(Under Aquilegia formosa)
Synonym
Aquilegia formosa var. caelifax
(Under Aquilegia shockleyi)
Synonym
Aquilegia formosa var. hypolasia
(Under Aquilegia formosa)
Synonym
Aquilegia formosa var. pauciflora
(Under Aquilegia formosa)
Synonym
Aquilegia formosa var. truncata
(Under Aquilegia formosa)
Synonym
Aquilegia mohavensis
(Under Aquilegia shockleyi)
Synonym
Aquilegia pubescensNative
Aquilegia shockleyiNative
Aquilegia tracyi
(Under Aquilegia eximia)
Synonym
Arabidopsis
Arabidopsis thalianaMOUSE-EAR CRESS, THALE CRESSNaturalized
Arabis
  ↳  Key to Arabis
ROCKCRESS
Arabis X divaricarpa A. Nelson
(Under Boechera divaricarpa)
Synonym
Arabis aculeolata
(Under Arabis)
Mentioned in
a note
Arabis arcuata var. rubicundula
(Under Boechera rubicundula)
Synonym
Arabis blepharophyllaCOAST ROCKCRESSNative
Arabis blepharophylla var. macdonaldiana
(Under Arabis mcdonaldiana)
Synonym
Arabis bodiensis
(Under Boechera bodiensis)
Synonym
Arabis breweri
(Under Boechera breweri)
Synonym
Arabis breweri var. austiniae
(Under Boechera breweri subsp. shastaensis)
Synonym
Arabis breweri var. breweri
(Under Boechera breweri subsp. breweri)
Synonym
Arabis breweri var. pecuniaria
(Under Boechera peirsonii)
Synonym
Arabis cobrensis
(Under Boechera cobrensis)
Synonym
Arabis constancei
(Under Boechera constancei)
Synonym
Arabis davidsonii
(Under Boechera davidsonii)
Synonym
Arabis davidsonii var. parva
(Under Boechera davidsonii)
Synonym
Arabis dispar
(Under Boechera dispar)
Synonym
Arabis divaricarpa
(Under Boechera divaricarpa)
Synonym
Arabis divaricarpa var. interposita
(Under Boechera acutina)
Synonym
Arabis drummondii
(Under Boechera stricta)
Synonym
Arabis eschscholtzianaNative
Arabis fernaldiana var. stylosa
(Under Boechera evadens)
Synonym
Arabis glabra
(Under Turritis glabra)
Synonym
Arabis glabra
(Under Arabis)
Mentioned in
a note
Arabis glabra var. furcatipilis
(Under Turritis glabra)
Synonym
Arabis glaucovalvula
(Under Boechera glaucovalvula)
Synonym
Arabis hirshbergiae
(Under Boechera johnstonii)
Synonym
Arabis hirsuta subsp. pycnocarpa
(Under Arabis pycnocarpa var. pycnocarpa)
Synonym
Arabis hirsuta var. eschscholtziana
(Under Arabis eschscholtziana)
Synonym
Arabis hirsuta var. glabrata
(Under Arabis eschscholtziana)
Synonym
Arabis hirsuta var. pycnocarpa
(Under Arabis pycnocarpa var. pycnocarpa)
Synonym
Arabis hoffmannii
(Under Boechera hoffmannii)
Synonym
Arabis holboellii var. pendulocarpa
(Under Boechera pendulocarpa)
Synonym
Arabis holboellii var. pinetorum
(Under Boechera pinetorum)
Synonym
Arabis holboellii var. retrofracta
(Under Boechera retrofracta)
Synonym
Arabis inyoensis
(Under Boechera inyoensis)
Synonym
Arabis johnstonii
(Under Boechera johnstonii)
Synonym
Arabis koehleri
(Under Boechera koehleri)
Synonym
Arabis koehleri var. stipitata
(Under Boechera koehleri)
Synonym
Arabis lemmonii
(Under Boechera lemmonii)
Synonym
Arabis lemmonii var. depauperata
(Under Boechera depauperata)
Synonym
Arabis lemmonii var. lemmonii
(Under Boechera lemmonii)
Synonym
Arabis lyallii
(Under Boechera lyallii)
Synonym
Arabis lyallii var. nubigena
(Under Boechera paupercula)
Synonym
Arabis macdonaldiana
(Under Arabis mcdonaldiana)
Synonym
Arabis mcdonaldianaMCDONALD'S ROCKCRESSNative
Arabis microphylla var. microphylla
(Under Boechera paupercula)
Synonym
Arabis modestaMODEST ROCKCRESSNative
Arabis oreganaOREGON ROCKCRESSNative
Arabis parishii
(Under Boechera parishii)
Synonym
Arabis paupercula
(Under Boechera paupercula)
Synonym
Arabis pendulina
(Under Boechera pendulina)
Synonym
Arabis pendulocarpa
(Under Boechera pendulocarpa)
Synonym
Arabis perennans
(Under Boechera perennans)
Synonym
Arabis pinzlae
(Under Boechera pinzliae)
Synonym
Arabis pinzliae
(Under Boechera pinzliae)
Synonym
Arabis platysperma
(Under Boechera platysperma)
Synonym
Arabis platysperma var. howellii
(Under Boechera howellii)
Synonym
Arabis platysperma var. platysperma
(Under Boechera elkoensis)
Synonym
Arabis pratincola
(Under Boechera pratincola)
Synonym
Arabis puberula
(Under Boechera puberula)
Synonym
Arabis pulchra
(Under Boechera pulchra)
Synonym
Arabis pulchra var. gracilis
(Under Boechera xylopoda)
Synonym
Arabis pulchra var. munciensis
(Under Boechera lincolnensis)
Synonym
Arabis pulchra var. pulchra
(Under Boechera pulchra)
Synonym
Arabis pycnocarpa var. pycnocarpaNative
Arabis pygmaea
(Under Boechera pygmaea)
Synonym
Arabis rectissima
(Under Boechera rectissima)
Synonym
Arabis rectissima var. rectissima
(Under Boechera rectissima)
Synonym
Arabis repanda
(Under Boechera repanda)
Synonym
Arabis repanda var. greenei
(Under Boechera repanda)
Synonym
Arabis repanda var. repanda
(Under Boechera repanda)
Synonym
Arabis retrofracta
(Under Boechera retrofracta)
Synonym
Arabis rigidissima
(Under Boechera rigidissima)
Synonym
Arabis rigidissima var. demota
(Under Boechera rigidissima)
Synonym
Arabis rigidissima var. rigidissima
(Under Boechera rigidissima)
Synonym
Arabis rollei
(Under Boechera rollei)
Synonym
Arabis serpentinicola
(Under Arabis mcdonaldiana)
Synonym
Arabis shockleyi
(Under Boechera shockleyi)
Synonym
Arabis sparsiflora
(Under Boechera sparsiflora)
Synonym
Arabis sparsiflora var. arcuata
(Under Boechera arcuata)
Synonym
Arabis sparsiflora var. californica
(Under Boechera californica)
Synonym
Arabis sparsiflora var. sparsiflora
(Under Boechera sparsiflora)
Synonym
Arabis sparsiflora var. subvillosa
(Under Boechera pauciflora)
Synonym
Arabis subpinnatifida
(Under Boechera subpinnatifida)
Synonym
Arabis suffrutescens
(Under Boechera suffrutescens)
Synonym
Arabis suffrutescens var. horizontalis
(Under Boechera)
Mentioned in
a note
Arabis suffrutescens var. suffrutescens
(Under Boechera suffrutescens)
Synonym
Arabis tiehmii
(Under Boechera tiehmii)
Synonym
Araceae
  ↳  Key to Araceae
ARUM FAMILY
AraliaSPIKENARD
Aralia californicaELK CLOVERNative
Araliaceae
  ↳  Key to Araliaceae
GINSENG FAMILY
AraujiaBLADDER-FLOWER
Araujia sericiferaNaturalized
ArbutusMADRONE
Arbutus menziesiiPACIFIC MADRONENative
Arceuthobium
  ↳  Key to Arceuthobium
DWARF MISTLETOE
Arceuthobium abietinum
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium americanumLODGEPOLE-PINE DWARF MISTLETOENative
Arceuthobium californicum
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium campylopodumWESTERN DWARF MISTLETOENative
Arceuthobium cyanocarpum
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium divaricatum
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium douglasiiDOUGLAS-FIR DWARF MISTLETOENative
Arceuthobium littorum
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium monticola
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium occidentale
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium siskiyouense
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium tsugense
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium tsugense subsp. contortae
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium tsugense subsp. mertensianae
(Under Arceuthobium campylopodum)
Synonym
Arceuthobium tsugense subsp. tsugense
(Under Arceuthobium campylopodum)
Synonym
Arctium
  ↳  Key to Arctium
BURDOCK
Arctium lappaNaturalized
Arctium minusNaturalized
Arctomecon
Arctomecon californica
(Under Arctomecon merriamii)
Mentioned in
a note
Arctomecon merriamiiWHITE BEAR POPPYNative
Arctostaphylos
  ↳  Key to Arctostaphylos
MANZANITA
Arctostaphylos ×knightii Gankin & W.R. Hildreth
(Under Arctostaphylos nevadensis subsp. knightii)
Synonym
Arctostaphylos ×pacifica Roof
(Under Arctostaphylos pacifica)
Synonym
Arctostaphylos acuta
(Under Arctostaphylos hookeri subsp. hookeri)
Synonym
Arctostaphylos acutifolia
(Under Arctostaphylos patula)
Synonym
Arctostaphylos andersoniiANDERSON'S MANZANITANative
Arctostaphylos andersonii var. auriculata
(Under Arctostaphylos auriculata)
Synonym
Arctostaphylos andersonii var. imbricata
(Under Arctostaphylos imbricata)
Synonym
Arctostaphylos andersonii var. pajaroensis
(Under Arctostaphylos pajaroensis)
Synonym
Arctostaphylos andersonii var. pallida
(Under Arctostaphylos pallida)
Synonym
Arctostaphylos andersonii var. pechoensis
(Under Arctostaphylos pechoensis)
Synonym
Arctostaphylos auriculataMOUNT DIABLO MANZANITANative
Arctostaphylos bakeriNative
Arctostaphylos bakeri subsp. bakeriBAKER'S MANZANITANative
Arctostaphylos bakeri subsp. sublaevisTHE CEDARS MANZANITANative
Arctostaphylos bowermaniae
(Under Arctostaphylos manzanita subsp. manzanita)
Synonym
Arctostaphylos candidissima
(Under Arctostaphylos canescens subsp. canescens)
Synonym
Arctostaphylos canescensNative
Arctostaphylos canescens subsp. canescensHOARY MANZANITANative
Arctostaphylos canescens subsp. malloryi
(Under Arctostaphylos malloryi)
Synonym
Arctostaphylos canescens subsp. sonomensisSONOMA CANESCENT MANZANITANative
Arctostaphylos canescens var. candidissima
(Under Arctostaphylos canescens subsp. canescens)
Synonym
Arctostaphylos catalinaeSANTA CATALINA ISLAND MANZANITANative
Arctostaphylos chaloneorum
(Under Arctostaphylos pungens)
Synonym
Arctostaphylos cinerea
(Under Arctostaphylos canescens subsp. canescens)
Synonym
Arctostaphylos columbianaCOLUMBIA MANZANITANative
Arctostaphylos columbiana f. tracyi
(Under Arctostaphylos columbiana)
Synonym
Arctostaphylos columbiana subsp. nortensis
(Under Arctostaphylos nortensis)
Synonym
Arctostaphylos columbiana var. tracyi
(Under Arctostaphylos columbiana)
Synonym
Arctostaphylos columbiana var. virgata
(Under Arctostaphylos virgata)
Synonym
Arctostaphylos confertifloraSANTA ROSA ISLAND MANZANITANative
Arctostaphylos crustaceaNative
Arctostaphylos crustacea subsp. crinitaCRINITE MANZANITANative
Arctostaphylos crustacea subsp. crustaceaNative
Arctostaphylos crustacea subsp. eastwoodianaEASTWOOD'S BRITTLE-LEAF MANZANITANative
Arctostaphylos crustacea subsp. insulicolaISLAND MANZANITANative
Arctostaphylos crustacea subsp. roseiROSE'S MANZANITANative
Arctostaphylos crustacea subsp. subcordataSANTA CRUZ ISLAND MANZANITANative
Arctostaphylos cruzensisARROYO DE LA CRUZ MANZANITANative
Arctostaphylos cushingiana
(Under Arctostaphylos glandulosa subsp. cushingiana)
Synonym
Arctostaphylos densifloraVINE HILL MANZANITANative
Arctostaphylos drupacea
(Under Arctostaphylos pringlei subsp. drupacea)
Synonym
Arctostaphylos edmundsiiLITTLE SUR MANZANITANative
Arctostaphylos elegans
(Under Arctostaphylos manzanita subsp. elegans)
Synonym
Arctostaphylos franciscanaFRANCISCAN MANZANITANative
Arctostaphylos gabilanensisGABILAN MOUNTAINS MANZANITANative
Arctostaphylos gabrielensis
(Under Arctostaphylos glandulosa subsp. gabrielensis)
Synonym
Arctostaphylos glandulosaNative
Arctostaphylos glandulosa f. cushingiana
(Under Arctostaphylos glandulosa subsp. cushingiana)
Synonym
Arctostaphylos glandulosa subsp. adamsiiNative
Arctostaphylos glandulosa subsp. crassifoliaDEL MAR MANZANITANative
Arctostaphylos glandulosa subsp. cushingianaCUSHING MANZANITANative
Arctostaphylos glandulosa subsp. gabrielensisSAN GABRIEL MANZANITANative
Arctostaphylos glandulosa subsp. glandulosaNative
Arctostaphylos glandulosa subsp. glaucomollis
(Under Arctostaphylos glandulosa subsp. mollis)
Synonym
Arctostaphylos glandulosa subsp. howelliiNative
Arctostaphylos glandulosa subsp. leucophyllaNative
Arctostaphylos glandulosa subsp. mollisNative
Arctostaphylos glandulosa subsp. zacaensis
(Under Arctostaphylos glandulosa subsp. glandulosa)
Synonym
Arctostaphylos glandulosa var. australis
(Under Arctostaphylos glandulosa subsp. glandulosa)
Synonym
Arctostaphylos glandulosa var. cushingiana
(Under Arctostaphylos glandulosa subsp. cushingiana)
Synonym
Arctostaphylos glandulosa var. howellii
(Under Arctostaphylos glandulosa subsp. howellii)
Synonym
Arctostaphylos glandulosa var. mollis
(Under Arctostaphylos glandulosa subsp. mollis)
Synonym
Arctostaphylos glandulosa var. virgata
(Under Arctostaphylos virgata)
Synonym
Arctostaphylos glaucaNative
Arctostaphylos glauca var. eremicola
(Under Arctostaphylos glauca)
Synonym
Arctostaphylos glauca var. puberula
(Under Arctostaphylos glauca)
Synonym
Arctostaphylos glutinosaSCHREIBER'S MANZANITANative
Arctostaphylos hearstiorum
(Under Arctostaphylos hookeri subsp. hearstiorum)
Synonym
Arctostaphylos hispidulaHOWELL'S MANZANITANative
Arctostaphylos hookeriNative
Arctostaphylos hookeri subsp. franciscana
(Under Arctostaphylos franciscana)
Synonym
Arctostaphylos hookeri subsp. hearstiorumHEARSTS' MANZANITANative
Arctostaphylos hookeri subsp. hookeriHOOKER'S MANZANITANative
Arctostaphylos hookeri subsp. montana
(Under Arctostaphylos montana subsp. montana)
Synonym
Arctostaphylos hookeri subsp. ravenii
(Under Arctostaphylos montana subsp. ravenii)
Synonym
Arctostaphylos hooveriHOOVER'S MANZANITANative
Arctostaphylos howellii
(Under Arctostaphylos glandulosa subsp. howellii)
Synonym
Arctostaphylos imbricataSAN BRUNO MOUNTAIN MANZANITANative
Arctostaphylos imbricata subsp. montaraensis
(Under Arctostaphylos montaraensis)
Synonym
Arctostaphylos insularisNative
Arctostaphylos insularis var. pubescens
(Under Arctostaphylos insularis)
Synonym
Arctostaphylos klamathensisKLAMATH MANZANITANative
Arctostaphylos laevigata
(Under Arctostaphylos manzanita subsp. laevigata)
Synonym
Arctostaphylos lucianaSANTA LUCIA MANZANITANative
Arctostaphylos malloryiMALLORY'S MANZANITANative
Arctostaphylos manzanitaNative
Arctostaphylos manzanita subsp. bakeri
(Under Arctostaphylos bakeri subsp. bakeri)
Synonym
Arctostaphylos manzanita subsp. elegansKONOCTI MANZANITANative
Arctostaphylos manzanita subsp. glaucescensNative
Arctostaphylos manzanita subsp. laevigataCONTRA COSTA MANZANITANative
Arctostaphylos manzanita subsp. manzanitaNative
Arctostaphylos manzanita subsp. roofiiNative
Arctostaphylos manzanita subsp. wieslanderiNative
Arctostaphylos manzanita var. elegans
(Under Arctostaphylos manzanita subsp. elegans)
Synonym
Arctostaphylos mariposa
(Under Arctostaphylos viscida subsp. mariposa)
Synonym
Arctostaphylos mendocinoensis
(Under Arctostaphylos nummularia subsp. mendocinoensis)
Synonym
Arctostaphylos mewukkaNative
Arctostaphylos mewukka subsp. mewukkaNative
Arctostaphylos mewukka subsp. trueiTRUE'S MANZANITANative
Arctostaphylos montanaNative
Arctostaphylos montana subsp. montanaMOUNT TAMALPAIS MANZANITANative
Arctostaphylos montana subsp. raveniiPRESIDIO MANZANITANative
Arctostaphylos montaraensisMONTARA MANZANITANative
Arctostaphylos montereyensisTORO MANZANITANative
Arctostaphylos morroensisMORRO MANZANITANative
Arctostaphylos myrtifoliaIONE MANZANITANative
Arctostaphylos nevadensisNative
Arctostaphylos nevadensis subsp. knightiiKNIGHT'S MANZANITANative
Arctostaphylos nevadensis subsp. nevadensisPINE-MAT MANZANITANative
Arctostaphylos nissenanaNISSENAN MANZANITANative
Arctostaphylos nissenana var. arcana
(Under Arctostaphylos nissenana)
Synonym
Arctostaphylos nortensisDEL NORTE MANZANITANative
Arctostaphylos nummulariaNative
Arctostaphylos nummularia subsp. mendocinoensisPYGMY MANZANITANative
Arctostaphylos nummularia subsp. nummulariaNative
Arctostaphylos nummularia subsp. sensitiva
(Under Arctostaphylos sensitiva)
Synonym
Arctostaphylos nummularia var. myrtifolia
(Under Arctostaphylos myrtifolia)
Synonym
Arctostaphylos nummularia var. sensitiva
(Under Arctostaphylos sensitiva)
Synonym
Arctostaphylos obispoensisBISHOP MANZANITANative
Arctostaphylos ohloneanaOHLONE MANZANITANative
Arctostaphylos osoensisOSO MANZANITANative
Arctostaphylos otayensisOTAY MANZANITANative
Arctostaphylos pacificaPACIFIC MANZANITANative
Arctostaphylos pajaroensisPAJARO MANZANITANative
Arctostaphylos pallidaPALLID MANZANITANative
Arctostaphylos parryanaNative
Arctostaphylos parryana subsp. deserticaDESERT MANZANITANative
Arctostaphylos parryana subsp. parryanaPARRY MANZANITANative
Arctostaphylos parryana subsp. tumescensINTERIOR MANZANITANative
Arctostaphylos parryana var. pinetorum
(Under Arctostaphylos patula)
Synonym
Arctostaphylos patulaGREENLEAF MANZANITANative
Arctostaphylos pechoensisPECHO MANZANITANative
Arctostaphylos pechoensis var. cruzensis
(Under Arctostaphylos cruzensis)
Synonym
Arctostaphylos pechoensis var. viridissima
(Under Arctostaphylos viridissima)
Synonym
Arctostaphylos pilosulaSANTA MARGARITA MANZANITANative
Arctostaphylos pilosula subsp. pismoensis
(Under Arctostaphylos pilosula)
Synonym
Arctostaphylos pringlei subsp. drupaceaNative
Arctostaphylos pringlei subsp. pringlei
(Under Arctostaphylos pringlei subsp. drupacea)
Mentioned in
a note
Arctostaphylos pseudopungens
(Under Arctostaphylos pungens)
Synonym
Arctostaphylos pulchella
(Under Arctostaphylos viscida subsp. pulchella)
Synonym
Arctostaphylos pumilaSANDMAT MANZANITANative
Arctostaphylos pungensNative
Arctostaphylos pungens subsp. bakeri
(Under Arctostaphylos bakeri subsp. bakeri)
Synonym
Arctostaphylos pungens subsp. chaloneorum
(Under Arctostaphylos pungens)
Synonym
Arctostaphylos pungens subsp. elegans
(Under Arctostaphylos manzanita subsp. elegans)
Synonym
Arctostaphylos pungens subsp. laevigata
(Under Arctostaphylos manzanita subsp. laevigata)
Synonym
Arctostaphylos pungens subsp. roofii
(Under Arctostaphylos manzanita subsp. roofii)
Synonym
Arctostaphylos pungens var. montana
(Under Arctostaphylos montana subsp. montana)
Synonym
Arctostaphylos pungens var. platyphylla
(Under Arctostaphylos patula)
Synonym
Arctostaphylos purissimaLA PURISIMA MANZANITANative
Arctostaphylos rainbowensisRAINBOW MANZANITANative
Arctostaphylos refugioensisREFUGIO MANZANITANative
Arctostaphylos regismontanaKINGS MOUNTAIN MANZANITANative
Arctostaphylos roofii
(Under Arctostaphylos manzanita subsp. roofii)
Synonym
Arctostaphylos rosei
(Under Arctostaphylos crustacea subsp. rosei)
Synonym
Arctostaphylos rudisSAND MESA MANZANITANative
Arctostaphylos sensitivaNative
Arctostaphylos serpentinicola
(Under Arctostaphylos viscida subsp. pulchella)
Synonym
Arctostaphylos silvicolaBONNY DOON MANZANITANative
Arctostaphylos sonomensis
(Under Arctostaphylos canescens subsp. sonomensis)
Synonym
Arctostaphylos stanfordianaNative
Arctostaphylos stanfordiana subsp. bakeri
(Under Arctostaphylos bakeri subsp. bakeri)
Synonym
Arctostaphylos stanfordiana subsp. decumbensRINCON RIDGE MANZANITANative
Arctostaphylos stanfordiana subsp. hispidula
(Under Arctostaphylos hispidula)
Synonym
Arctostaphylos stanfordiana subsp. raicheiRAICHE'S MANZANITANative
Arctostaphylos stanfordiana subsp. stanfordianaNative
Arctostaphylos stanfordiana var. repens
(Under Arctostaphylos stanfordiana subsp. decumbens)
Synonym
Arctostaphylos subcordata var. confertiflora
(Under Arctostaphylos confertiflora)
Synonym
Arctostaphylos tomentosaNative
Arctostaphylos tomentosa subsp. bracteosaNative
Arctostaphylos tomentosa subsp. crinita
(Under Arctostaphylos crustacea subsp. crinita)
Synonym
Arctostaphylos tomentosa subsp. crustacea
(Under Arctostaphylos crustacea subsp. crustacea)
Synonym
Arctostaphylos tomentosa subsp. daciticolaDACITE MANZANITANative
Arctostaphylos tomentosa subsp. eastwoodiana
(Under Arctostaphylos crustacea subsp. eastwoodiana)
Synonym
Arctostaphylos tomentosa subsp. hebecladaNative
Arctostaphylos tomentosa subsp. insulicola
(Under Arctostaphylos crustacea subsp. insulicola)
Synonym
Arctostaphylos tomentosa subsp. rosei
(Under Arctostaphylos crustacea subsp. rosei)
Synonym
Arctostaphylos tomentosa subsp. subcordata
(Under Arctostaphylos crustacea subsp. subcordata)
Synonym
Arctostaphylos tomentosa subsp. tomentosaNative
Arctostaphylos tomentosa var. crassifolia
(Under Arctostaphylos glandulosa subsp. crassifolia)
Synonym
Arctostaphylos tomentosa var. crinita
(Under Arctostaphylos crustacea subsp. crinita)
Synonym
Arctostaphylos tomentosa var. hebeclada
(Under Arctostaphylos tomentosa subsp. bracteosa)
Synonym
Arctostaphylos tomentosa var. hebeclada
(Under Arctostaphylos tomentosa subsp. hebeclada)
Synonym
Arctostaphylos tomentosa var. trichoclada
(Under Arctostaphylos tomentosa subsp. bracteosa)
Synonym
Arctostaphylos tracyi
(Under Arctostaphylos columbiana)
Synonym
Arctostaphylos truei
(Under Arctostaphylos mewukka subsp. truei)
Synonym
Arctostaphylos uva-ursiBEAR-BERRY, KINNIKINNICKNative
Arctostaphylos uva-ursi f. adenotricha
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi f. coactilis
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi subsp. adenotricha
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi subsp. coactilis
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi subsp. hookeri
(Under Arctostaphylos hookeri subsp. hookeri)
Synonym
Arctostaphylos uva-ursi subsp. monoensis
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi var. coactilis
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi var. leobreweri
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi var. marinensis
(Under Arctostaphylos uva-ursi)
Synonym
Arctostaphylos uva-ursi var. saxicola
(Under Arctostaphylos pacifica)
Synonym
Arctostaphylos virgataMARIN MANZANITANative
Arctostaphylos viridissimaWHITE-HAIRED MANZANITANative
Arctostaphylos viscidaNative
Arctostaphylos viscida subsp. mariposaMARIPOSA MANZANITANative
Arctostaphylos viscida subsp. pulchellaNative
Arctostaphylos viscida subsp. viscidaNative
Arctostaphylos viscosissima
(Under Arctostaphylos hispidula)
Synonym
Arctostaphylos wellsii
(Under Arctostaphylos pilosula)
Synonym
Arctostaphylos zacaensis
(Under Arctostaphylos glandulosa subsp. glandulosa)
Synonym
Arctotheca
  ↳  Key to Arctotheca
Arctotheca calendulaCAPEWEEDNaturalized
Arctotheca calendula
(Under Arctotheca prostrata)
Synonym
Arctotheca prostrataPROSTRATE CAPEWEEDNaturalized
Arctotis
Arctotis fastuosa
(Under Arctotis)
Mentioned in
a note
Arctotis stoechadifolia
(Under Arctotis venusta)
Synonym
Arctotis venustaBLUE-EYED AFRICAN DAISYNaturalized
Arecaceae (Palmae)
  ↳  Key to Arecaceae (Palmae)
PALM FAMILY
Arenaria
  ↳  Key to Arenaria
SANDWORT
Arenaria aculeata
(Under Eremogone aculeata)
Synonym
Arenaria californica
(Under Minuartia californica)
Synonym
Arenaria confusa
(Under Arenaria lanuginosa var. saxosa)
Synonym
Arenaria congesta
(Under Eremogone congesta)
Synonym
Arenaria congesta var. charlestonensis
(Under Eremogone congesta var. charlestonensis)
Synonym
Arenaria congesta var. congesta
(Under Eremogone congesta var. congesta)
Synonym
Arenaria congesta var. crassula
(Under Eremogone congesta var. crassula)
Synonym
Arenaria congesta var. simulans
(Under Eremogone congesta var. simulans)
Synonym
Arenaria congesta var. subcongesta
(Under Eremogone congesta var. subcongesta)
Synonym
Arenaria congesta var. suffrutescens
(Under Eremogone congesta var. suffrutescens)
Synonym
Arenaria douglasii
(Under Minuartia douglasii)
Synonym
Arenaria douglasii var. emarginata
(Under Minuartia douglasii)
Synonym
Arenaria howellii
(Under Minuartia howellii)
Synonym
Arenaria kingii subsp. compacta
(Under Eremogone kingii var. glabrescens)
Synonym
Arenaria kingii var. glabrescens
(Under Eremogone kingii var. glabrescens)
Synonym
Arenaria lanuginosa subsp. saxosa
(Under Arenaria lanuginosa var. saxosa)
Synonym
Arenaria lanuginosa var. saxosaROCK SANDWORT, SPREADING SANDWORTNative
Arenaria macradenia
(Under Eremogone macradenia)
Synonym
Arenaria macradenia subsp. ferrisiae
(Under Eremogone ferrisiae)
Synonym
Arenaria macradenia var. arcuifolia
(Under Eremogone macradenia var. arcuifolia)
Synonym
Arenaria macradenia var. kuschei
(Under Eremogone macradenia var. arcuifolia)
Synonym
Arenaria macradenia var. macradenia
(Under Eremogone macradenia var. macradenia)
Synonym
Arenaria macradenia var. parishiorum
(Under Eremogone macradenia var. macradenia)
Synonym
Arenaria macrophylla
(Under Moehringia macrophylla)
Synonym
Arenaria nuttallii subsp. fragilis
(Under Minuartia nuttallii var. fragilis)
Synonym
Arenaria nuttallii subsp. gracilis
(Under Minuartia nuttallii var. gracilis)
Synonym
Arenaria nuttallii subsp. gregaria
(Under Minuartia nuttallii var. gregaria)
Synonym
Arenaria nuttallii var. gracilis
(Under Minuartia nuttallii var. gracilis)
Synonym
Arenaria obtusiloba
(Under Minuartia obtusiloba)
Synonym
Arenaria paludicolaMARSH SANDWORTNative
Arenaria pumicola var. californica
(Under Eremogone kingii var. glabrescens)
Synonym
Arenaria pusilla
(Under Minuartia pusilla)
Synonym
Arenaria pusilla var. diffusa
(Under Minuartia californica)
Synonym
Arenaria rosei
(Under Minuartia rosei)
Synonym
Arenaria rubella
(Under Minuartia rubella)
Synonym
Arenaria serpyllifolia subsp. serpyllifolia
(Under Arenaria serpyllifolia var. serpyllifolia)
Synonym
Arenaria serpyllifolia var. serpyllifoliaTHYMELEAF SANDWORTNaturalized
Arenaria ursina
(Under Eremogone ursina)
Synonym
Argemone
  ↳  Key to Argemone
PRICKLY POPPY
Argemone corymbosaNative
Argemone munitaCHICALOTENative
Argemone munita subsp. argentea
(Under Argemone munita)
Synonym
Argemone munita subsp. robusta
(Under Argemone munita)
Synonym
Argemone munita subsp. rotundata
(Under Argemone munita)
Synonym
Argyranthemum
Argyranthemum foeniculaceumNaturalized
Argyranthemum frutescens
(Under Argyranthemum)
Mentioned in
a note
Argyrochosma
  ↳  Key to Argyrochosma
Argyrochosma jonesiiJONES' FALSE CLOAK-FERNNative
Argyrochosma limitanea subsp. limitaneaSOUTHWESTERN FALSE CLOAK-FERNNative
Argyrochosma limitanea var. limitanea
(Under Argyrochosma limitanea subsp. limitanea)
Synonym
Argythamnia californica
(Under Ditaxis serrata var. californica)
Synonym
Argythamnia clariana
(Under Ditaxis claryana)
Synonym
Argythamnia claryana
(Under Ditaxis claryana)
Synonym
Argythamnia lanceolata
(Under Ditaxis lanceolata)
Synonym
Argythamnia neomexicana
(Under Ditaxis neomexicana)
Synonym
Arida arizonica
(Under Leucosyris arida)
Synonym
Arida carnosa
(Under Leucosyris carnosa)
Synonym
Aristida
  ↳  Key to Aristida
THREE-AWN
Aristida adscensionisSIXWEEKS THREE-AWNNative
Aristida californicaCALIFORNIA THREE-AWN, MOJAVE THREE-AWNNative
Aristida dichotomaCHURCHMOUSE THREE-AWNNaturalized
Aristida divaricataPOVERTY THREE-AWNNative
Aristida fendleriana
(Under Aristida purpurea var. fendleriana)
Synonym
Aristida glauca
(Under Aristida purpurea var. nealleyi)
Synonym
Aristida hamulosa
(Under Aristida ternipes var. gentilis)
Synonym
Aristida longiseta
(Under Aristida purpurea var. longiseta)
Synonym
Aristida oliganthaOLDFIELD THREE-AWNNative
Aristida orcuttiana
(Under Aristida divaricata)
Mentioned in
a note
Aristida parishii
(Under Aristida purpurea var. parishii)
Synonym
Aristida purpureaNative
Aristida purpurea var. fendlerianaFENDLER THREE-AWNNative
Aristida purpurea var. longisetaRED THREE-AWNNative
Aristida purpurea var. nealleyiNEALLEY THREE-AWNNative
Aristida purpurea var. parishiiPARISH THREE-AWNNative
Aristida purpurea var. purpureaPURPLE THREE-AWNNative
Aristida purpurea var. robusta
(Under Aristida purpurea var. longiseta)
Synonym
Aristida purpurea var. wrightiiWRIGHT THREE-AWNNative
Aristida schiedeana var. orcuttiana
(Under Aristida divaricata)
Mentioned in
a note
Aristida ternipes var. gentilisHOOK THREE-AWNNative
Aristida ternipes var. hamulosa
(Under Aristida ternipes var. gentilis)
Synonym
Aristida wrightii
(Under Aristida purpurea var. wrightii)
Synonym
Aristocapsa
Aristocapsa insignisINDIAN VALLEY SPINEFLOWERNative
AristolochiaPIPEVINE, BIRTHWORT
Aristolochia californicaNative
Aristolochiaceae
  ↳  Key to Aristolochiaceae
PIPEVINE FAMILY
ArmeriaTHRIFT, SEA-PINK
Armeria maritima subsp. californicaNative
Armeria maritima var. californica
(Under Armeria maritima subsp. californica)
Synonym
Armoracia
Armoracia rusticanaHORSE RADISHNaturalized
Arnica
  ↳  Key to Arnica
Arnica ×diversifolia Greene
(Under Arnica ovata)
Synonym
Arnica amplexicaulis
(Under Arnica lanceolata subsp. prima)
Synonym
Arnica bernardina
(Under Arnica chamissonis)
Synonym
Arnica cernuaSERPENTINE ARNICANative
Arnica chamissonisCHAMISSO ARNICANative
Arnica chamissonis subsp. foliosa
(Under Arnica chamissonis)
Synonym
Arnica chamissonis var. bernardina
(Under Arnica chamissonis)
Synonym
Arnica cordifoliaHEARTLEAF ARNICANative
Arnica cordifolia var. pumila
(Under Arnica cordifolia)
Mentioned in
a note
Arnica dealbataMOCK LEOPARDBANENative
Arnica discoideaRAYLESS ARNICANative
Arnica discoidea var. alata
(Under Arnica discoidea)
Synonym
Arnica discoidea var. eradiata
(Under Arnica discoidea)
Synonym
Arnica diversifolia
(Under Arnica ovata)
Synonym
Arnica fulgensHILLSIDE ARNICANative
Arnica lanceolata subsp. primaCLASPING ARNICANative
Arnica latifoliaBROADLEAF ARNICANative
Arnica longifoliaSPEARLEAF ARNICANative
Arnica longifolia subsp. myriadenia
(Under Arnica longifolia)
Synonym
Arnica mollisHAIRY ARNICANative
Arnica nevadensisSIERRA ARNICANative
Arnica ovataSTICKY LEAF ARNICANative
Arnica parryiNODDING ARNICANative
Arnica parryi subsp. parryi
(Under Arnica parryi)
Synonym
Arnica parryi subsp. sonnei
(Under Arnica parryi)
Synonym
Arnica sonnei
(Under Arnica parryi)
Synonym
Arnica sororiaTWIN ARNICANative
Arnica spathulataKLAMATH ARNICANative
Arnica spathulata subsp. eastwoodiae
(Under Arnica spathulata)
Synonym
Arnica tomentella
(Under Arnica nevadensis)
Synonym
Arnica venosaSHASTA COUNTY ARNICANative
Arnica viscosaMOUNT SHASTA ARNICANative
ArrhenatherumOAT GRASS
Arrhenatherum elatiusTALL OAT GRASSNaturalized
Arrhenatherum elatius subsp. bulbosum
(Under Arrhenatherum elatius)
Synonym
Arrhenatherum elatius var. biaristatum
(Under Arrhenatherum elatius)
Synonym
Arrhenatherum elatius var. bulbosum
(Under Arrhenatherum elatius)
Synonym
Artemisia
  ↳  Key to Artemisia
MUGWORT, SAGEBRUSH, SAGEWORT
Artemisia absinthium
(Under Artemisia)
Mentioned in
a note
Artemisia annuaSWEET ANNIEWaif
Artemisia arbusculaLOW SAGEBRUSHNative
Artemisia arbuscula subsp. arbusculaNative
Artemisia arbuscula subsp. longilobaNative
Artemisia arbuscula subsp. nova
(Under Artemisia nova)
Synonym
Artemisia arbuscula var. thermopola
(Under Artemisia)
Mentioned in
a note
Artemisia arctica
(Under Artemisia norvegica subsp. saxatilis)
Synonym
Artemisia biennisBIENNIAL WORMWOODNaturalized
Artemisia biennis var. biennis
(Under Artemisia biennis)
Synonym
Artemisia bigeloviiBIGELOW SAGEWORTNative
Artemisia bolanderi
(Under Artemisia cana subsp. bolanderi)
Synonym
Artemisia borealis subsp. borealisBOREAL SAGENative
Artemisia californicaCALIFORNIA SAGEBRUSHNative
Artemisia californica var. insularis
(Under Artemisia nesiotica)
Synonym
Artemisia campestris subsp. borealis
(Under Artemisia borealis subsp. borealis)
Synonym
Artemisia campestris subsp. pacifica
(Under Artemisia)
Mentioned in
a note
Artemisia cana
(Under Artemisia spiciformis)
Mentioned in
a note
Artemisia cana subsp. bolanderiSILVER SAGEBRUSHNative
Artemisia douglasianaMUGWORTNative
Artemisia dracunculusTARRAGONNative
Artemisia lindleyana
(Under Artemisia ludoviciana subsp. incompta)
Synonym
Artemisia ludovicianaSILVER WORMWOODNative
Artemisia ludoviciana subsp. albulaNative
Artemisia ludoviciana subsp. candicansNative
Artemisia ludoviciana subsp. incomptaNative
Artemisia ludoviciana subsp. ludovicianaNative
Artemisia michauxianaLEMON SAGEWORTNative
Artemisia nesioticaISLAND SAGEBRUSHNative
Artemisia norvegica subsp. saxatilisALPINE SAGEWORTNative
Artemisia novaBLACK SAGEBRUSHNative
Artemisia palmeriSAN DIEGO SAGEWORTNative
Artemisia petrophila
(Under Artemisia bigelovii)
Synonym
Artemisia pycnocephalaCOASTAL SAGEWORTNative
Artemisia rothrockiiROTHROCK SAGEBRUSHNative
Artemisia spiciformisSNOWFIELD SAGEBRUSHNative
Artemisia spinescensBUDSAGENative
Artemisia suksdorfiiCOASTAL MUGWORTNative
Artemisia tridentataNative
Artemisia tridentata subsp. bolanderi
(Under Artemisia cana subsp. bolanderi)
Synonym
Artemisia tridentata subsp. parishiiNative
Artemisia tridentata subsp. tridentataBIG SAGEBRUSHNative
Artemisia tridentata subsp. vaseyanaMOUNTAIN SAGEBRUSHNative
Artemisia tridentata subsp. wyomingensisWYOMING SAGEBRUSHNative
ArthrocnemumPICKLEWEED
Arthrocnemum subterminaleNative
Arum
  ↳  Key to Arum
Arum italicumITALIAN ARUMNaturalized
Arum palaestinumBLACK CALLA, SOLOMON'S LILYWaif
AruncusGOAT'S BEARD
Aruncus acuminatus
(Under Aruncus dioicus var. acuminatus)
Synonym
Aruncus dioicus var. acuminatusNative
Aruncus dioicus var. pubescens
(Under Aruncus dioicus var. acuminatus)
Synonym
Arundo
Arundo donaxGIANT REEDNaturalized
Asarum
  ↳  Key to Asarum
WILD-GINGER
Asarum caudatumNative
Asarum hartwegiiNative
Asarum lemmoniiNative
Asarum marmoratumMARBLED WILD-GINGERNative
Asclepias
  ↳  Key to Asclepias
MILKWEED
Asclepias albicansWHITE-STEMMED MILKWEEDNative
Asclepias asperula subsp. asperulaANTELOPE-HORNSNative
Asclepias asperula subsp. capricornu
(Under Asclepias asperula subsp. asperula)
Mentioned in
a note
Asclepias asperula var. decumbens
(Under Asclepias asperula subsp. asperula)
Mentioned in
a note
Asclepias californicaCALIFORNIA MILKWEEDNative
Asclepias californica subsp. californica
(Under Asclepias californica)
Synonym
Asclepias californica subsp. greenei
(Under Asclepias californica)
Synonym
Asclepias capricornu subsp. occidentalis
(Under Asclepias asperula subsp. asperula)
Synonym
Asclepias cordifoliaPURPLE MILKWEEDNative
Asclepias cryptocerasHUMBOLDT MOUNTAINS MILKWEEDNative
Asclepias cryptoceras subsp. cryptoceras
(Under Asclepias cryptoceras)
Synonym
Asclepias cryptoceras subsp. davisii
(Under Asclepias cryptoceras)
Synonym
Asclepias curassavicaBLOODFLOWER MILKWEEDCultivated plant
Asclepias eriocarpaKOTOLONative
Asclepias erosaDESERT MILKWEEDNative
Asclepias fascicularisNARROW-LEAF MILKWEEDNative
Asclepias fruticosaWaif
Asclepias giffordii
(Under Asclepias speciosa)
Synonym
Asclepias latifoliaBROADLEAF MILKWEEDNative
Asclepias nyctaginifoliaMOJAVE MILKWEEDNative
Asclepias solanoanaSERPENTINE MILKWEEDNative
Asclepias speciosaSHOWY MILKWEEDNative
Asclepias subulataRUSH MILKWEEDNative
Asclepias vestitaWOOLLY MILKWEEDNative
Asclepias vestita subsp. parishii
(Under Asclepias vestita)
Synonym
Asclepias vestita subsp. vestita
(Under Asclepias vestita)
Synonym
Asclepias vestita var. parishii
(Under Asclepias vestita)
Synonym
Asclepias vestita var. vestita
(Under Asclepias vestita)
Synonym
AsparagaceaeASPARAGUS FAMILY
Asparagus
  ↳  Key to Asparagus
Asparagus aethiopicusWaif
Asparagus asparagoidesNaturalized
Asparagus densiflorus
(Under Asparagus aethiopicus)
Synonym
Asparagus densiflorus
(Under Asparagus)
Mentioned in
a note
Asparagus officinalis subsp. officinalisNaturalized
Asparagus plumosus
(Under Asparagus setaceus)
Mentioned in
a note
Asparagus setaceusNaturalized
AsperugoMADWORT
Asperugo procumbensNaturalized
Asphodelaceae
  ↳  Key to Asphodelaceae
ASPHODEL FAMILY
AsphodelusASPHODEL
Asphodelus fistulosusNaturalized
Aspidotis
  ↳  Key to Aspidotis
Aspidotis californicaCALIFORNIA LACE FERNNative
Aspidotis carlotta-halliaeCARLOTTA HALL'S LACE FERNNative
Aspidotis densaDENSE LACE FERNNative
AspleniaceaeSPLEENWORT FAMILY
Asplenium
  ↳  Key to Asplenium
SPLEENWORT
Asplenium septentrionaleNORTHERN SPLEENWORTNative
Asplenium trichomanes subsp. trichomanesMAIDENHAIR SPLEENWORTNative
Asplenium trichomanes-ramosum
(Under Asplenium viride)
Synonym
Asplenium vespertinumWESTERN SPLEENWORTNative
Asplenium virideGREEN SPLEENWORTNative
Astephanus utahense
(Under Funastrum utahense)
Synonym
Aster alpigenus var. andersonii
(Under Oreostemma alpigenum var. andersonii)
Synonym
Aster ascendens
(Under Symphyotrichum ascendens)
Synonym
Aster ascendens var. parryi
(Under Symphyotrichum foliaceum var. parryi)
Synonym
Aster bahamensis
(Under Symphyotrichum subulatum var. elongatum)
Synonym
Aster bernardinus
(Under Symphyotrichum defoliatum)
Synonym
Aster bracteolatus
(Under Symphyotrichum bracteolatum)
Synonym
Aster breweri
(Under Eucephalus breweri)
Synonym
Aster brickellioides
(Under Eucephalus tomentellus)
Synonym
Aster brickellioides var. glabratus
(Under Eucephalus glabratus)
Synonym
Aster campestris
(Under Symphyotrichum campestre)
Synonym
Aster chilensis
(Under Symphyotrichum chilense)
Synonym
Aster chilensis subsp. ascendens
(Under Symphyotrichum ascendens)
Synonym
Aster chilensis var. bernardinus
(Under Symphyotrichum defoliatum)
Synonym
Aster chilensis var. lentus
(Under Symphyotrichum lentum)
Synonym
Aster chilensis var. medius
(Under Symphyotrichum chilense)
Synonym
Aster chilensis var. sonomensis
(Under Symphyotrichum lentum)
Synonym
Aster cognatus
(Under Xylorhiza cognata)
Synonym
Aster eatonii
(Under Symphyotrichum bracteolatum)
Synonym
Aster elmeri
(Under Erigeron elmeri)
Synonym
Aster engelmannii
(Under Eucephalus engelmannii)
Synonym
Aster foliaceus
(Under Symphyotrichum foliaceum)
Synonym
Aster foliaceus var. apricus
(Under Symphyotrichum foliaceum var. apricum)
Synonym
Aster foliaceus var. lyallii
(Under Symphyotrichum hendersonii)
Synonym
Aster foliaceus var. parryi
(Under Symphyotrichum foliaceum var. parryi)
Synonym
Aster frondosus
(Under Symphyotrichum frondosum)
Synonym
Aster greatae
(Under Symphyotrichum greatae)
Synonym
Aster greatai
(Under Symphyotrichum greatae)
Mentioned in
a note
Aster hendersonii
(Under Symphyotrichum hendersonii)
Synonym
Aster hesperius
(Under Symphyotrichum lanceolatum var. hesperium)
Synonym
Aster integrifolius
(Under Eurybia integrifolia)
Synonym
Aster intricatus
(Under Leucosyris carnosa)
Synonym
Aster lanceolatus subsp. hesperius
(Under Symphyotrichum lanceolatum var. hesperium)
Synonym
Aster ledophyllus var. covillei
(Under Eucephalus ledophyllus var. covillei)
Synonym
Aster lentus
(Under Symphyotrichum lentum)
Synonym
Aster lentus var. sonomensis
(Under Symphyotrichum lentum)
Synonym
Aster occidentalis
(Under Symphyotrichum spathulatum)
Synonym
Aster occidentalis var. delectabilis
(Under Symphyotrichum spathulatum var. spathulatum)
Synonym
Aster occidentalis var. intermedius
(Under Symphyotrichum spathulatum var. intermedium)
Synonym
Aster occidentalis var. occidentalis
(Under Symphyotrichum spathulatum var. spathulatum)
Synonym
Aster occidentalis var. parishii
(Under Symphyotrichum spathulatum var. spathulatum)
Synonym
Aster occidentalis var. yosemitanus
(Under Symphyotrichum spathulatum var. yosemitanum)
Synonym
Aster orcuttii
(Under Xylorhiza orcuttii)
Synonym
Aster oregonensis subsp. californicus
(Under Sericocarpus oregonensis subsp. californicus)
Synonym
Aster oregonensis subsp. oregonensis
(Under Sericocarpus oregonensis subsp. oregonensis)
Synonym
Aster paludicola
(Under Symphyotrichum spathulatum var. yosemitanum)
Synonym
Aster pauciflorus
(Under Almutaster pauciflorus)
Synonym
Aster peirsonii
(Under Oreostemma peirsonii)
Synonym
Aster radulinus
(Under Eurybia radulina)
Synonym
Aster scopulorum
(Under Ionactis alpina)
Synonym
Aster sibiricus var. meritus
(Under Eurybia merita)
Synonym
Aster siskiyouensis
(Under Eucephalus glabratus)
Synonym
Aster spathulatus
(Under Symphyotrichum spathulatum)
Synonym
Aster spathulatus var. intermedius
(Under Symphyotrichum spathulatum var. intermedium)
Synonym
Aster spinosus
(Under Chloracantha spinosa var. spinosa)
Synonym
Aster squamatum
(Under Symphyotrichum subulatum var. squamatum)
Synonym
Aster subspicatus
(Under Symphyotrichum subspicatum)
Synonym
Aster subulatus
(Under Symphyotrichum subulatum)
Synonym
Aster subulatus var. cubensis
(Under Symphyotrichum subulatum var. parviflorum)
Synonym
Aster subulatus var. elongatus
(Under Symphyotrichum subulatum var. elongatum)
Synonym
Aster subulatus var. ligulatus
(Under Symphyotrichum subulatum)
Mentioned in
a note
Aster vialis
(Under Eucephalus vialis)
Synonym
Asteraceae (Compositae)
  ↳  Key to Asteraceae (Compositae)
SUNFLOWER FAMILY
Asteriscus maritimus
(Under Pallenis maritima)
Mentioned in
a note
Astragalus
  ↳  Key to Astragalus
LOCOWEED, MILKVETCH
Astragalus accidens var. hendersoniiNative
Astragalus acutirostrisNative
Astragalus agnicidusHUMBOLDT COUNTY MILKVETCHNative
Astragalus agrestisFIELD MILKVETCHNative
Astragalus albensCUSHENBURY MILKVETCHNative
Astragalus allochrous
(Under Astragalus allochrous var. playanus)
Mentioned in
a note
Astragalus allochrous var. playanusPLAYA MILKVETCHNative
Astragalus andersoniiNative
Astragalus antisellii
(Under Astragalus trichopodus var. phoxus)
Synonym
Astragalus antisellii var. gaviotus
(Under Astragalus trichopodus var. phoxus)
Synonym
Astragalus antisellii var. phoxus
(Under Astragalus trichopodus var. phoxus)
Synonym
Astragalus anxiusASH VALLEY MILKVETCHNative
Astragalus argophyllus var. argophyllusSILVER-LEAVED MILKVETCHNative
Astragalus aridusNative
Astragalus asymmetricusNative
Astragalus atratus var. mensanusDARWIN MESA MILKVETCHNative
Astragalus austiniaeNative
Astragalus bernardianus
(Under Astragalus bernardinus)
Synonym
Astragalus bernardinusNative
Astragalus bicristatusCRESTED MILKVETCHNative
Astragalus bolanderiNative
Astragalus brauntoniiBRAUNTON'S MILKVETCHNative
Astragalus breweriBREWER'S MILKVETCHNative
Astragalus californicusKLAMATH MILKVETCHNative
Astragalus calycosus var. calycosusTORREY'S MILKVETCHNative
Astragalus canadensis var. brevidensNative
Astragalus caseiNative
Astragalus cicerCHICKPEA MILKVETCHNaturalized
Astragalus cimae
  ↳  Key to Astragalus cimae
Native
Astragalus cimae var. cimaeCIMA MILKVETCHNative
Astragalus cimae var. sufflatusINFLATED CIMA MILKVETCHNative
Astragalus claranusCLARA HUNT'S MILKVETCHNative
Astragalus clarianus
(Under Astragalus claranus)
Synonym
Astragalus clevelandiiCLEVELAND'S MILKVETCHNative
Astragalus coccineusSCARLET MILKVETCHNative
Astragalus congdoniiNative
Astragalus crotalariaeSALTON MILKVETCHNative
Astragalus curtipesMORRO MILKVETCHNative
Astragalus curvicarpus var. curvicarpusSICKLE MILKVETCHNative
Astragalus deaneiDEAN'S MILKVETCHNative
Astragalus didymocarpus
  ↳  Key to Astragalus didymocarpus
TWO-SEEDED MILKVETCHNative
Astragalus didymocarpus var. daleoides
(Under Astragalus didymocarpus var. didymocarpus)
Synonym
Astragalus didymocarpus var. didymocarpusNative
Astragalus didymocarpus var. dispermusNative
Astragalus didymocarpus var. milesianusMILES' MILKVETCHNative
Astragalus didymocarpus var. obispoensisNative
Astragalus douglasii
  ↳  Key to Astragalus douglasii
DOUGLAS MILKVETCHNative
Astragalus douglasii var. douglasiiNative
Astragalus douglasii var. parishiiNative
Astragalus douglasii var. perstrictusJACUMBA MILKVETCHNative
Astragalus ertteraeWALKER PASS MILKVETCHNative
Astragalus filipesBASALT MILKVETCHNative
Astragalus funereusBLACK MILKVETCHNative
Astragalus gambelianusGAMBEL MILKVETCH, LITTLE BLUE LOCONative
Astragalus gambelianus var. elmeri
(Under Astragalus gambelianus)
Mentioned in
a note
Astragalus geyeri var. geyeriGEYER'S MILKVETCHNative
Astragalus gibbsiiGIBBS' MILKVETCHNative
Astragalus gilmaniiGILMAN'S MILKVETCHNative
Astragalus hornii var. horniiHORN'S MILKVETCHNative
Astragalus insularis var. harwoodiiHARWOOD'S MILKVETCHNative
Astragalus inversusSUSANVILLE MILKVETCHNative
Astragalus inyoensisINYO MILKVETCHNative
Astragalus iodanthus
  ↳  Key to Astragalus iodanthus
Native
Astragalus iodanthus var. diaphanoidesSNAKE MILKVETCHNative
Astragalus iodanthus var. iodanthusHUMBOLDT RIVER MILKVETCHNative
Astragalus iodanthus var. pseudiodanthus
(Under Astragalus pseudiodanthus)
Synonym
Astragalus jaegerianusLANE MOUNTAIN MILKVETCHNative
Astragalus johannis-howelliiLONG VALLEY MILKVETCHNative
Astragalus kentrophyta
  ↳  Key to Astragalus kentrophyta
Native
Astragalus kentrophyta var. danausSWEETWATER MOUNTAINS MILKVETCHNative
Astragalus kentrophyta var. elatusSPINY-LEAVED MILKVETCHNative
Astragalus kentrophyta var. implexus
(Under Astragalus kentrophyta var. tegetarius)
Synonym
Astragalus kentrophyta var. tegetariusNative
Astragalus kentrophyta var. ungulatusSPINY MILKVETCHNative
Astragalus layneaeLAYNE MILKVETCHNative
Astragalus lemmoniiLEMMON'S MILKVETCHNative
Astragalus lentiformisLENS-POD MILKVETCHNative
Astragalus lentiginosus
  ↳  Key to Astragalus lentiginosus
FRECKLED MILKVETCHNative
Astragalus lentiginosus var. albifoliusNative
Astragalus lentiginosus var. antoniusSAN ANTONIO MILKVETCHNative
Astragalus lentiginosus var. borreganusBORREGO MILKVETCHNative
Astragalus lentiginosus var. carinatus
(Under Astragalus lentiginosus var. lentiginosus)
Synonym
Astragalus lentiginosus var. chartaceusNative
Astragalus lentiginosus var. coachellaeCOACHELLA VALLEY MILKVETCHNative
Astragalus lentiginosus var. coulteri
(Under Astragalus lentiginosus var. borreganus)
Synonym
Astragalus lentiginosus var. floribundusNative
Astragalus lentiginosus var. fremontiiFREMONT'S MILKVETCHNative
Astragalus lentiginosus var. idriensisNative
Astragalus lentiginosus var. ineptusNative
Astragalus lentiginosus var. kernensisKERN PLATEAU MILKVETCHNative
Astragalus lentiginosus var. lentiginosusNative
Astragalus lentiginosus var. micansSHINING MILKVETCHNative
Astragalus lentiginosus var. nigricalycisNative
Astragalus lentiginosus var. piscinensisFISH SLOUGH MILKVETCHNative
Astragalus lentiginosus var. platyphyllidius
(Under Astragalus lentiginosus var. chartaceus)
Synonym
Astragalus lentiginosus var. salinusNative
Astragalus lentiginosus var. semotusNative
Astragalus lentiginosus var. sesquimetralisSODAVILLE MILKVETCHNative
Astragalus lentiginosus var. sierraeBIG BEAR VALLEY MILKVETCHNative
Astragalus lentiginosus var. variabilisNative
Astragalus leucolobusBIG BEAR VALLEY WOOLLYPODNative
Astragalus leucopsis
(Under Astragalus trichopodus var. lonchus)
Synonym
Astragalus leucopsis var. lonchus
(Under Astragalus trichopodus var. lonchus)
Synonym
Astragalus macrodonSALINAS MILKVETCHNative
Astragalus magdalenae var. peirsoniiPEIRSON'S MILKVETCHNative
Astragalus malacusNative
Astragalus miguelensisSAN MIGUEL ISLAND MILKVETCHNative
Astragalus minthorniae var. villosusNative
Astragalus mohavensis
  ↳  Key to Astragalus mohavensis
Native
Astragalus mohavensis var. hemigyrusCURVED-POD MILKVETCHNative
Astragalus mohavensis var. mohavensisNative
Astragalus monoensisMONO MILKVETCHNative
Astragalus monoensis var. ravenii
(Under Astragalus ravenii)
Synonym
Astragalus neviniiSAN CLEMENTE ISLAND MILKVETCHNative
Astragalus newberryi
(Under Astragalus coccineus)
Mentioned in
a note
Astragalus newberryi var. newberryiNEWBERRY'S MILKVETCHNative
Astragalus nutansPROVIDENCE MOUNTAINS MILKVETCHNative
Astragalus nuttallianus
  ↳  Key to Astragalus nuttallianus
SMALL-FLOWERED MILKVETCHNative
Astragalus nuttallianus var. austrinusJfp-8, does not occur in ca
Astragalus nuttallianus var. cedrosensisNative
Astragalus nuttallianus var. imperfectusNative
Astragalus nuttallii
  ↳  Key to Astragalus nuttallii
NUTTALL'S MILKVETCHNative
Astragalus nuttallii var. nuttalliiOCEAN BLUFF MILKVETCHNative
Astragalus nuttallii var. virgatusNative
Astragalus obscurusNative
Astragalus oocarpusSAN DIEGO MILKVETCHNative
Astragalus oophorous
(Under Astragalus oophorus)
Synonym
Astragalus oophorous var. lavinii
(Under Astragalus oophorus var. lavinii)
Synonym
Astragalus oophorous var. oophorous
(Under Astragalus oophorus var. oophorus)
Synonym
Astragalus oophorus
  ↳  Key to Astragalus oophorus
Native
Astragalus oophorus var. laviniiLAVIN'S MILKVETCHNative
Astragalus oophorus var. oophorusEGG MILKVETCHNative
Astragalus oxyphysusSTANISLAUS MILKVETCHNative
Astragalus pachypus
  ↳  Key to Astragalus pachypus
Native
Astragalus pachypus var. jaegeriJAEGER'S BUSH MILKVETCHNative
Astragalus pachypus var. pachypusBUSH MILKVETCHNative
Astragalus palmeriNative
Astragalus panamintensisNative
Astragalus pauperculusDEPAUPERATE MILKVETCHNative
Astragalus platytropisBROAD-KEELED MILKVETCHNative
Astragalus pomonensisNative
Astragalus preussii
  ↳  Key to Astragalus preussii
Native
Astragalus preussii var. laxiflorusLANCASTER MILKVETCHNative
Astragalus preussii var. preussiiPREUSS' MILKVETCHNative
Astragalus pseudiodanthusTONOPAH MILKVETCHNative
Astragalus pulsiferae
  ↳  Key to Astragalus pulsiferae
Native
Astragalus pulsiferae var. coronensisMODOC PLATEAU MILKVETCHNative
Astragalus pulsiferae var. pulsiferaePULSIFER'S MILKVETCHNative
Astragalus pulsiferae var. suksdorfiiSUKSDORF'S MILKVETCHNative
Astragalus purshii
  ↳  Key to Astragalus purshii
PURSH'S MILKVETCHNative
Astragalus purshii var. funereus
(Under Astragalus funereus)
Synonym
Astragalus purshii var. lagopinusNative
Astragalus purshii var. lectulusNative
Astragalus purshii var. longilobus
(Under Astragalus purshii var. tinctus)
Synonym
Astragalus purshii var. purshiiNative
Astragalus purshii var. tinctusNative
Astragalus pycnostachyus
  ↳  Key to Astragalus pycnostachyus
Native
Astragalus pycnostachyus var. lanosissimusVENTURA MARSH MILKVETCHNative
Astragalus pycnostachyus var. pycnostachyusCOASTAL MARSH MILKVETCHNative
Astragalus rattanii
  ↳  Key to Astragalus rattanii
Native
Astragalus rattanii var. jepsonianusJEPSON'S MILKVETCHNative
Astragalus rattanii var. rattaniiRATTAN'S MILKVETCHNative
Astragalus raveniiRAVEN'S MILKVETCHNative
Astragalus sabulonumNative
Astragalus sepultipesBISHOP MILKVETCHNative
Astragalus serenoi var. shockleyiSHOCKLEY'S MILKVETCHNative
Astragalus shevockiiSHEVOCK'S MILKVETCHNative
Astragalus subvestitusKERN COUNTY MILKVETCHNative
Astragalus tegetarioides var. anxius
(Under Astragalus anxius)
Synonym
Astragalus tener
  ↳  Key to Astragalus tener
Native
Astragalus tener var. ferrisiaeFERRIS' MILKVETCHNative
Astragalus tener var. tenerALKALI MILKVETCHNative
Astragalus tener var. titiCOASTAL DUNES MILKVETCHNative
Astragalus tephrodes var. brachylobusJfp-8, does not occur in ca
Astragalus tidestromiiTIDESTROM'S MILKVETCHNative
Astragalus traskiaeTRASK'S MILKVETCHNative
Astragalus tricarinatusTRIPLE-RIBBED MILKVETCHNative
Astragalus trichopodus
  ↳  Key to Astragalus trichopodus
Native
Astragalus trichopodus var. lonchusNative
Astragalus trichopodus var. phoxusANTISELL MILKVETCHNative
Astragalus trichopodus var. trichopodusSANTA BARBARA MILKVETCHNative
Astragalus umbraticusBALD MOUNTAIN MILKVETCHNative
Astragalus vaseyi
(Under Astragalus palmeri)
Synonym
Astragalus webberiWEBBER'S MILKVETCHNative
Astragalus whitneyi
  ↳  Key to Astragalus whitneyi
BALLOON MILKVETCHNative
Astragalus whitneyi var. confususNative
Astragalus whitneyi var. lenophyllusWOOLLY-LEAVED MILKVETCHNative
Astragalus whitneyi var. siskiyouensisNative
Astragalus whitneyi var. whitneyiNative
Astragalus wootoni var. wootoni
(Under Astragalus allochrous var. playanus)
Synonym
Astrolepis
Astrolepis cochisensisSCALY CLOAK-FERNNative
AsyneumaHAREBELL
Asyneuma prenanthoidesNative
AthyriaceaeLADY FERN FAMILY
Athyrium
  ↳  Key to Athyrium
LADY FERN
Athyrium alpestre var. americanum
(Under Athyrium distentifolium var. americanum)
Synonym
Athyrium distentifolium var. americanumNative
Athyrium distentifolium var. distentifolium
(Under Athyrium distentifolium var. americanum)
Mentioned in
a note
Athyrium filix-femina
(Under Thelypteris nevadensis)
Mentioned in
a note
Athyrium filix-femina var. californicum
(Under Athyrium filix-femina var. cyclosorum)
Synonym
Athyrium filix-femina var. cyclosorumNative
Athyrium filix-femina var. sitchense
(Under Athyrium filix-femina var. cyclosorum)
Synonym
Athysanus
  ↳  Key to Athysanus
Athysanus pusillusNative
Athysanus unilateralisNative
Atocion armeria
(Under Silene armeria)
Synonym
Atocion armeria
(Under Silene)
Mentioned in
a note
AtrichoserisGRAVEL-GHOST
Atrichoseris platyphyllaNative
Atriplex
  ↳  Key to Atriplex
SALTBUSH, ORACH
Atriplex amnicolaSWAMP SALTBUSHNaturalized
Atriplex argenteaSILVERSCALENative
Atriplex argentea subsp. expansa
(Under Atriplex argentea var. expansa)
Synonym
Atriplex argentea var. argenteaNative
Atriplex argentea var. expansaNative
Atriplex argentea var. hillmaniiHILLMAN'S SILVERSCALENative
Atriplex argentea var. longitrichomaPAHRUMP ORACHNative
Atriplex argentea var. mohavensis
(Under Atriplex argentea var. expansa)
Synonym
Atriplex bracteosa
(Under Atriplex serenana)
Synonym
Atriplex californica
(Under Extriplex californica)
Synonym
Atriplex californica
(Under Atriplex)
Mentioned in
a note
Atriplex canescensFOUR-WING SALTBUSHNative
Atriplex canescens subsp. canescens
(Under Atriplex canescens var. canescens)
Synonym
Atriplex canescens subsp. linearis
(Under Atriplex canescens var. linearis)
Synonym
Atriplex canescens var. canescensNative
Atriplex canescens var. laciniataCALEB SALTBUSHNative
Atriplex canescens var. linearisSLENDERLEAF SALTBUSHNative
Atriplex canescens var. macilentaSALTON SALTBUSHNative
Atriplex confertifoliaSHADSCALENative
Atriplex cordulataHEARTSCALENative
Atriplex cordulata var. cordulataNative
Atriplex cordulata var. erecticaulisEARLIMART ORACHNative
Atriplex cordulata var. tularensis
(Under Atriplex tularensis)
Synonym
Atriplex coronataNative
Atriplex coronata var. coronataCROWNSCALENative
Atriplex coronata var. notatiorSAN JACINTO VALLEY CROWNSCALENative
Atriplex coronata var. vallicolaLOST HILLS CROWNSCALENative
Atriplex coronata var. verna
(Under Atriplex coronata var. coronata)
Synonym
Atriplex coulteriCOULTER'S SALTBUSHNative
Atriplex covillei
(Under Stutzia covillei)
Synonym
Atriplex covillei
(Under Atriplex)
Mentioned in
a note
Atriplex crassipes
(Under Atriplex)
Mentioned in
a note
Atriplex curvidens
(Under Atriplex polycarpa)
Synonym
Atriplex davidsonii
(Under Atriplex serenana var. davidsonii)
Synonym
Atriplex decumbens
(Under Atriplex watsonii)
Synonym
Atriplex depressaBRITTLESCALENative
Atriplex dioicaTHICKLEAF ORACHNative
Atriplex elegansWHEELSCALENative
Atriplex elegans subsp. fasciculata
(Under Atriplex elegans var. fasciculata)
Synonym
Atriplex elegans var. elegansNative
Atriplex elegans var. fasciculataMECCA ORACHNative
Atriplex erecticaulis
(Under Atriplex cordulata var. erecticaulis)
Synonym
Atriplex expansa
(Under Atriplex argentea var. expansa)
Synonym
Atriplex falcata
(Under Atriplex gardneri var. falcata)
Synonym
Atriplex fasciculata
(Under Atriplex elegans var. fasciculata)
Synonym
Atriplex flagellaris
(Under Atriplex semibaccata)
Synonym
Atriplex fruticulosaBALLSCALE, LITTLE OAK ORACHNative
Atriplex gardneri var. falcataFALCATE SALTBUSHNative
Atriplex glaucaNaturalized
Atriplex gmelinii var. gmeliniiGMELIN'S SALTBUSHNative
Atriplex halimoides
(Under Atriplex lindleyi)
Synonym
Atriplex hastata
(Under Atriplex prostrata)
Synonym
Atriplex hastata subsp. patula
(Under Atriplex patula)
Synonym
Atriplex hastata var. patula
(Under Atriplex patula)
Synonym
Atriplex heterosperma
(Under Atriplex micrantha)
Synonym
Atriplex hillmanii
(Under Atriplex argentea var. hillmanii)
Synonym
Atriplex hortensisGARDEN ORACHNaturalized
Atriplex hymenelytraDESERT-HOLLYNative
Atriplex joaquinana
(Under Extriplex joaquinana)
Synonym
Atriplex joaquinana
(Under Atriplex)
Mentioned in
a note
Atriplex joaquiniana
(Under Extriplex joaquinana)
Synonym
Atriplex johnstonii
(Under Atriplex nummularia)
Synonym
Atriplex lentiformisBIG SALTBUSHNative
Atriplex lentiformis subsp. breweri
(Under Atriplex lentiformis)
Mentioned in
a note
Atriplex lentiformis subsp. torreyi
(Under Atriplex torreyi var. torreyi)
Synonym
Atriplex lentiformis var. torreyi
(Under Atriplex torreyi var. torreyi)
Synonym
Atriplex leucophyllaBEACH SALTBUSHNative
Atriplex lindleyiNaturalized
Atriplex linearis
(Under Atriplex canescens var. linearis)
Synonym
Atriplex longitrichoma
(Under Atriplex argentea var. longitrichoma)
Synonym
Atriplex micranthaRUSSIAN ATRIPLEXNaturalized
Atriplex minusculaLESSER SALTSCALENative
Atriplex nitens
(Under Atriplex hortensis)
Synonym
Atriplex nummulariaNaturalized
Atriplex nuttallii
(Under Atriplex canescens)
Synonym
Atriplex nuttallii var. falcata
(Under Atriplex gardneri var. falcata)
Synonym
Atriplex pacificaSOUTH COAST SALTSCALENative
Atriplex parishiiPARISH'S BRITTLESCALENative
Atriplex parishii var. depressa
(Under Atriplex depressa)
Synonym
Atriplex parishii var. minuscula
(Under Atriplex minuscula)
Synonym
Atriplex parishii var. persistens
(Under Atriplex persistens)
Synonym
Atriplex parishii var. subtilis
(Under Atriplex subtilis)
Synonym
Atriplex parryiNative
Atriplex patulaSPEAR ORACHNative
Atriplex patula subsp. hastata
(Under Atriplex prostrata)
Synonym
Atriplex patula subsp. spicata
(Under Extriplex joaquinana)
Synonym
Atriplex patula var. obtusa
(Under Atriplex gmelinii var. gmelinii)
Synonym
Atriplex patula var. subspicata
(Under Atriplex dioica)
Synonym
Atriplex persistensVERNAL POOL SMALLSCALENative
Atriplex phyllostegia
(Under Stutzia covillei)
Synonym
Atriplex polycarpaALLSCALE SALTBUSHNative
Atriplex prostrataFAT-HENNaturalized
Atriplex pusillaSMOOTH SALTBUSHNative
Atriplex ramosissima
(Under Atriplex pacifica)
Synonym
Atriplex roseaTUMBLING ORACHNaturalized
Atriplex saltonensis
(Under Atriplex elegans var. fasciculata)
Synonym
Atriplex semibaccataAUSTRALIAN SALTBUSHNaturalized
Atriplex serenanaBRACTSCALE, STINKING ORACHNative
Atriplex serenana var. davidsoniiDAVIDSON'S SALTSCALENative
Atriplex serenana var. serenanaNative
Atriplex spicata
(Under Extriplex joaquinana)
Synonym
Atriplex spicata var. lagunita
(Under Extriplex joaquinana)
Synonym
Atriplex spiniferaSPINY SALTBUSHNative
Atriplex subdecumbens
(Under Atriplex truncata)
Synonym
Atriplex suberectaSPRAWLING SALTBUSHNaturalized
Atriplex subspicata
(Under Atriplex dioica)
Synonym
Atriplex subtilisSUBTLE ORACHNative
Atriplex torreyi var. torreyiTORREY'S SALTBUSHNative
Atriplex triangularis
(Under Atriplex prostrata)
Synonym
Atriplex trinervata
(Under Atriplex argentea var. expansa)
Synonym
Atriplex truncataWEDGESCALENative
Atriplex truncata var. stricta
(Under Atriplex truncata)
Synonym
Atriplex tularensisBAKERSFIELD SMALLSCALENative
Atriplex vallicola
(Under Atriplex coronata var. vallicola)
Synonym
Atriplex verna
(Under Atriplex coronata var. coronata)
Synonym
Atriplex watsoniiNative
Aubrieta
Aubrieta deltoideaWaif
Aurinia saxatilis
(Under Brassicaceae (Cruciferae))
Mentioned in
a note
Avena
  ↳  Key to Avena
OATS
Avena barbataSLENDER WILD OATNaturalized
Avena fatuaWILD OATNaturalized
Avena fatua var. sativa
(Under Avena sativa)
Synonym
Avena occidentalis
(Under Avena)
Mentioned in
a note
Avena sativaCULTIVATED OATNaturalized
Avena sterilisANIMATED OATNaturalized
Avena strigosa
(Under Avena)
Mentioned in
a note
Avicennia
Avicennia marina var. australasicaGRAY MANGROVENaturalized
Avicennia marina var. resinifera
(Under Avicennia marina var. australasica)
Synonym
Axonopus affinis
(Under Poaceae (Gramineae))
Mentioned in
a note
Axonopus fissifolius
(Under Poaceae (Gramineae))
Mentioned in
a note
Ayenia
Ayenia californica
(Under Ayenia compacta)
Synonym
Ayenia compactaCALIFORNIA AYENIANative
Azolla
  ↳  Key to Azolla
Azolla cristata
(Under Azolla)
Mentioned in
a note
Azolla filiculoidesNative
Azolla mexicana
(Under Azolla microphylla)
Synonym
Azolla microphyllaMEXICAN MOSQUITO FERNNative
AzollaceaeMOSQUITO FERN FAMILY