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Key to families Table of families and genera
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Scientific Name

Index Page: C

Scientific NameCommon Name
CabombaFANWORT
Cabomba carolinianaNaturalized
Cabomba peltata
(Under Brasenia schreberi)
Synonym
Cabombaceae
  ↳  Key to Cabombaceae
WATERSHIELD FAMILY
Cacaliopsis
Cacaliopsis nardosmiaNative
Cactaceae
  ↳  Key to Cactaceae
CACTUS FAMILY
Caesalpinia
  ↳  Key to Caesalpinia
Caesalpinia gilliesiiBIRD-OF-PARADISENaturalized
Caesalpinia spinosaTARANaturalized
Caesalpinia virgata
(Under Hoffmannseggia microphylla)
Synonym
Caesalpinia virgata
(Under Caesalpinia)
Mentioned in
a note
Cakile
  ↳  Key to Cakile
SEA ROCKET
Cakile edentulaNaturalized
Cakile edentula subsp. californica
(Under Cakile edentula)
Synonym
Cakile maritimaNaturalized
Calamagrostis
  ↳  Key to Calamagrostis
REED GRASS
Calamagrostis bolanderiBOLANDER'S REED GRASSNative
Calamagrostis breweriSHORT HAIR REED GRASSNative
Calamagrostis canadensisNative
Calamagrostis canadensis var. canadensisBLUEJOINT REED GRASSNative
Calamagrostis canadensis var. langsdorffiiNative
Calamagrostis canadensis var. scabra
(Under Calamagrostis canadensis var. langsdorffii)
Synonym
Calamagrostis crassiglumis
(Under Calamagrostis stricta subsp. inexpansa)
Synonym
Calamagrostis densa
(Under Calamagrostis koelerioides)
Synonym
Calamagrostis foliosaLEAFY REED GRASSNative
Calamagrostis inexpansa
(Under Calamagrostis stricta subsp. inexpansa)
Synonym
Calamagrostis koelerioidesDENSE-PINE REED GRASSNative
Calamagrostis muirianaMUIR'S REED GRASSNative
Calamagrostis nutkaensisPACIFIC REED GRASSNative
Calamagrostis ophitidisSERPENTINE REED GRASSNative
Calamagrostis purpurascensPURPLE REED GRASSNative
Calamagrostis rubescensPINE REED GRASSNative
Calamagrostis strictaSLIPSTEM REED GRASSNative
Calamagrostis stricta subsp. inexpansaNative
Calamagrostis stricta subsp. strictaNative
Calamagrostis sylvatica var. longifolia
(Under Calamagrostis foliosa)
Synonym
Calamintha chandleri
(Under Clinopodium chandleri)
Synonym
Calandrinia
  ↳  Key to Calandrinia
Calandrinia ambigua
(Under Cistanthe ambigua)
Synonym
Calandrinia breweriBREWER'S CALANDRINIANative
Calandrinia ciliata
(Under Calandrinia)
Mentioned in
a note
Calandrinia ciliata
(Under Calandrinia menziesii)
Mentioned in
a note
Calandrinia ciliata var. menziesii
(Under Calandrinia menziesii)
Mentioned in
a note
Calandrinia grayi
(Under Lewisia pygmaea)
Synonym
Calandrinia howellii
(Under Lewisia cotyledon var. howellii)
Synonym
Calandrinia leeana
(Under Lewisia leeana)
Synonym
Calandrinia maritima
(Under Cistanthe maritima)
Synonym
Calandrinia menziesiiRED MAIDSNative
Calandrinia menziesii var. macrocarpa
(Under Calandrinia breweri)
Synonym
Calandrinia nevadensis
(Under Lewisia nevadensis)
Synonym
Calandrinia oppositifolia
(Under Lewisia oppositifolia)
Synonym
Calandrinia pygmaea
(Under Lewisia pygmaea)
Synonym
Calendula
  ↳  Key to Calendula
Calendula arvensisFIELD-MARIGOLDNaturalized
Calendula fruticosa
(Under Dimorphotheca fruticosa)
Synonym
Calendula officinalisPOT-MARIGOLDNaturalized
Calia
Calia secundifloraTEXAS MOUNTAIN LAURELWaif
Calibrachoa parviflora
(Under Petunia parviflora)
Synonym
Calibrachoa parviflora
(Under Petunia)
Mentioned in
a note
CaliforniaCALIFORNIA FILAREE
California macrophyllaROUND-LEAVED FILAREENative
CalliandraFAIRY-DUSTER
Calliandra eriophyllaPINK FAIRY-DUSTERNative
Calligonum canescens
(Under Atriplex canescens)
Synonym
Calliprora anilina
(Under Triteleia ixioides subsp. anilina)
Synonym
Calliprora aurantea
(Under Triteleia ixioides subsp. scabra)
Synonym
Calliprora ixioides var. lugens
(Under Triteleia lugens)
Synonym
Calliprora lugens
(Under Triteleia lugens)
Synonym
Calliprora lutea
(Under Triteleia ixioides subsp. ixioides)
Synonym
Calliprora scabra
(Under Triteleia ixioides subsp. scabra)
Synonym
Calliprora scabra var. anilina
(Under Triteleia ixioides subsp. anilina)
Synonym
Calliscirpus
  ↳  Key to Calliscirpus
COTTON GRASS
Calliscirpus brachythrixNative
Calliscirpus crinigerNative
Callistemon viminalis
(Under Melaleuca viminalis)
Synonym
Callitriche
  ↳  Key to Callitriche
WATER-STARWORT
Callitriche fassettiiNative
Callitriche hermaphroditica
(Under Callitriche fassettii)
Synonym
Callitriche heterophyllaNative
Callitriche heterophylla subsp. bolanderi
(Under Callitriche heterophylla var. bolanderi)
Synonym
Callitriche heterophylla var. bolanderiNative
Callitriche heterophylla var. heterophyllaNative
Callitriche longipedunculataNative
Callitriche marginataNative
Callitriche palustrisNative
Callitriche peploides
(Under Callitriche)
Mentioned in
a note
Callitriche stagnalisNaturalized
Callitriche stenocarpa
(Under Callitriche)
Mentioned in
a note
Callitriche trochlearisNative
Callitriche verna
(Under Callitriche palustris)
Synonym
CallitropsisNOOTKA CYPRESS
Callitropsis abramsiana
(Under Hesperocyparis abramsiana)
Synonym
Callitropsis arizonica
(Under Hesperocyparis stephensonii)
Synonym
Callitropsis bakeri
(Under Hesperocyparis bakeri)
Synonym
Callitropsis forbesii
(Under Hesperocyparis forbesii)
Synonym
Callitropsis goveniana
(Under Hesperocyparis goveniana)
Synonym
Callitropsis macnabiana
(Under Hesperocyparis macnabiana)
Synonym
Callitropsis macrocarpa
(Under Hesperocyparis macrocarpa)
Synonym
Callitropsis nevadensis
(Under Hesperocyparis nevadensis)
Synonym
Callitropsis nootkatensisALASKA CEDARNative
Callitropsis nootkatensis
(Under Callitropsis nootkatensis)
Synonym
Callitropsis pygmaea
(Under Hesperocyparis pygmaea)
Synonym
Callitropsis sargentii
(Under Hesperocyparis sargentii)
Synonym
Callitropsis stephensonii
(Under Hesperocyparis stephensonii)
Synonym
CalocedrusINCENSE CEDAR
Calocedrus decurrensNative
Calochortus
  ↳  Key to Calochortus
Calochortus albusWHITE GLOBE LILY, FAIRY-LANTERNNative
Calochortus albus var. rubellus
(Under Calochortus albus)
Mentioned in
a note
Calochortus amabilisDIOGENES' LANTERNNative
Calochortus amoenusNative
Calochortus argillosusCLAY MARIPOSA LILYNative
Calochortus bruneaunisNative
Calochortus catalinaeCATALINA MARIPOSA LILYNative
Calochortus clavatusNative
Calochortus clavatus subsp. clavatus
(Under Calochortus clavatus var. clavatus)
Synonym
Calochortus clavatus subsp. pallidus
(Under Calochortus clavatus var. pallidus)
Synonym
Calochortus clavatus subsp. recurvifolius
(Under Calochortus clavatus var. recurvifolius)
Synonym
Calochortus clavatus var. aviusPLEASANT VALLEY MARIPOSA LILYNative
Calochortus clavatus var. clavatusCLUB-HAIRED MARIPOSA LILYNative
Calochortus clavatus var. gracilisSLENDER MARIPOSA LILYNative
Calochortus clavatus var. pallidusNative
Calochortus clavatus var. recurvifoliusARROYO DE LA CRUZ MARIPOSA LILYNative
Calochortus coeruleusBEAVERTAIL-GRASSNative
Calochortus coeruleus var. fimbriatus
(Under Calochortus coeruleus)
Synonym
Calochortus coeruleus var. westonii
(Under Calochortus westonii)
Synonym
Calochortus concolorNative
Calochortus davidsonianus
(Under Calochortus splendens)
Synonym
Calochortus dunniiDUNN'S MARIPOSA LILYNative
Calochortus elegansCAT'S EARNative
Calochortus elegans var. nanus
(Under Calochortus elegans)
Synonym
Calochortus excavatusINYO COUNTY STAR-TULIPNative
Calochortus fimbriatusNative
Calochortus flexuosusNative
Calochortus greeneiGREENE'S MARIPOSA LILYNative
Calochortus invenustusNative
Calochortus kennedyiNative
Calochortus kennedyi var. kennedyiNative
Calochortus kennedyi var. munziiNative
Calochortus leichtliniiNative
Calochortus longebarbatus var. longebarbatusLONG-HAIRED STAR-TULIPNative
Calochortus longebarbatus var. peckii
(Under Calochortus longebarbatus var. longebarbatus)
Mentioned in
a note
Calochortus luteusNative
Calochortus macrocarpusNative
Calochortus minimusNative
Calochortus monanthusSINGLE-FLOWERED MARIPOSA LILYNative
Calochortus monophyllusYELLOW STAR-TULIPNative
Calochortus nudusNative
Calochortus nudus var. shastensis
(Under Calochortus nudus)
Synonym
Calochortus nuttallii var. bruneaunis
(Under Calochortus bruneaunis)
Synonym
Calochortus nuttallii var. panamintensis
(Under Calochortus panamintensis)
Synonym
Calochortus obispoensisSAN LUIS MARIPOSA LILYNative
Calochortus palmeriNative
Calochortus palmeri var. munziiSAN JACINTO MARIPOSA LILYNative
Calochortus palmeri var. palmeriPALMER'S MARIPOSA LILYNative
Calochortus panamintensisPANAMINT MARIPOSA LILYNative
Calochortus persistensSISKIYOU MARIPOSA LILYNative
Calochortus plummeraePLUMMER'S MARIPOSA LILYNative
Calochortus pulchellusMOUNT DIABLO FAIRY-LANTERNNative
Calochortus raicheiTHE CEDARS FAIRY-LANTERNNative
Calochortus simulansLA PANZA MARIPOSA LILYNative
Calochortus splendensNative
Calochortus striatusALKALI MARIPOSA LILYNative
Calochortus superbusNative
Calochortus syntrophusCALLAHAN'S MARIPOSA LILYNative
Calochortus tiburonensisTIBURON MARIPOSA LILYNative
Calochortus tolmieiPUSSY EARSNative
Calochortus umbellatusOAKLAND STAR-TULIPNative
Calochortus uniflorusPINK STAR-TULIPNative
Calochortus venustusNative
Calochortus venustus var. purpurescens
(Under Calochortus venustus)
Synonym
Calochortus vestaeNative
Calochortus weediiNative
Calochortus weedii var. intermediusINTERMEDIATE MARIPOSA LILYNative
Calochortus weedii var. vestus
(Under Calochortus fimbriatus)
Synonym
Calochortus weedii var. weediiNative
Calochortus westoniiSHIRLEY MEADOWS STAR-TULIPNative
Caltha
  ↳  Key to Caltha
MARSH MARIGOLD
Caltha leptosepalaNative
Caltha leptosepala subsp. howellii
(Under Caltha leptosepala)
Synonym
Caltha leptosepala var. biflora
(Under Caltha leptosepala)
Synonym
Caltha palustrisNaturalized
Calycadenia
  ↳  Key to Calycadenia
Calycadenia ciliosa
(Under Calycadenia fremontii)
Synonym
Calycadenia elegans
(Under Calycadenia fremontii)
Synonym
Calycadenia fremontiiNative
Calycadenia hispida
(Under Calycadenia multiglandulosa)
Synonym
Calycadenia hispida subsp. reducta
(Under Calycadenia multiglandulosa)
Synonym
Calycadenia hooveriHOOVER'S CALYCADENIANative
Calycadenia micranthaSMALL-FLOWERED CALYCADENIANative
Calycadenia mollisNative
Calycadenia multiglandulosaNative
Calycadenia multiglandulosa subsp. bicolor
(Under Calycadenia multiglandulosa)
Synonym
Calycadenia multiglandulosa subsp. cephalotes
(Under Calycadenia multiglandulosa)
Synonym
Calycadenia multiglandulosa subsp. robusta
(Under Calycadenia multiglandulosa)
Synonym
Calycadenia oppositifoliaBUTTE COUNTY CALYCADENIANative
Calycadenia paucifloraNative
Calycadenia spicataNative
Calycadenia tenella
(Under Osmadenia tenella)
Synonym
Calycadenia truncataROSIN WEEDNative
Calycadenia truncata subsp. microcephala
(Under Calycadenia micrantha)
Synonym
Calycadenia truncata subsp. scabrella
(Under Calycadenia truncata)
Synonym
Calycadenia villosaDWARF CALYCADENIANative
CalycanthaceaeSWEET-SHRUB or CALYCANTHUS FAMILY
Calycanthus
Calycanthus occidentalisSWEET-SHRUB, SPICEBUSHNative
Calycoseris
  ↳  Key to Calycoseris
TACK-STEM
Calycoseris parryiYELLOW TACK-STEMNative
Calycoseris wrightiiWHITE TACK-STEMNative
CalypsoFAIRY SLIPPER
Calypso bulbosa var. occidentalisNative
Calyptridium
  ↳  Key to Calyptridium
PUSSYPAWS
Calyptridium arizonicumNative
Calyptridium monandrumNative
Calyptridium monospermumNative
Calyptridium parryiNative
Calyptridium parryi var. arizonicum
(Under Calyptridium arizonicum)
Synonym
Calyptridium parryi var. arizonicum
(Under Calyptridium)
Mentioned in
a note
Calyptridium parryi var. hesseaeSANTA CRUZ MOUNTAINS PUSSYPAWSNative
Calyptridium parryi var. nevadenseNative
Calyptridium parryi var. parryiNative
Calyptridium pulchellumMARIPOSA PUSSYPAWSNative
Calyptridium pygmaeumPYGMY PUSSYPAWSNative
Calyptridium quadripetalumFOUR-PETALED PUSSYPAWSNative
Calyptridium roseumROSY CALYPTRIDIUMNative
Calyptridium umbellatumNative
Calyptridium umbellatum var. caudiciferum
(Under Calyptridium umbellatum)
Synonym
Calyptridium umbellatum var. umbellatum
(Under Calyptridium umbellatum)
Synonym
Calystegia
  ↳  Key to Calystegia
MORNING-GLORY
Calystegia atriplicifolia subsp. atriplicifolia
(Under Calystegia atriplicifolia subsp. buttensis)
Mentioned in
a note
Calystegia atriplicifolia subsp. buttensisBUTTE COUNTY MORNING-GLORYNative
Calystegia collinaNative
Calystegia collina subsp. collinaNative
Calystegia collina subsp. oxyphyllaMOUNT SAINT HELENA MORNING-GLORYNative
Calystegia collina subsp. tridactylosaTHREE-FINGERED MORNING-GLORYNative
Calystegia collina subsp. venustaSOUTH COAST RANGE MORNING-GLORYNative
Calystegia longipesNative
Calystegia macrostegiaNative
Calystegia macrostegia subsp. amplissimaISLAND MORNING-GLORYNative
Calystegia macrostegia subsp. aridaNative
Calystegia macrostegia subsp. cyclostegiaNative
Calystegia macrostegia subsp. intermediaNative
Calystegia macrostegia subsp. macrostegiaNative
Calystegia macrostegia subsp. tenuifoliaNative
Calystegia malacophyllaNative
Calystegia malacophylla subsp. malacophyllaNative
Calystegia malacophylla subsp. pedicellataNative
Calystegia malacophylla var. berryi
(Under Calystegia malacophylla subsp. malacophylla)
Mentioned in
a note
Calystegia occidentalisNative
Calystegia occidentalis subsp. fulcrataNative
Calystegia occidentalis subsp. occidentalisNative
Calystegia occidentalis var. tomentella
(Under Calystegia occidentalis subsp. occidentalis)
Mentioned in
a note
Calystegia peirsoniiPEIRSON'S MORNING-GLORYNative
Calystegia purpurataNative
Calystegia purpurata subsp. purpurataNative
Calystegia purpurata subsp. saxicolaCOASTAL BLUFF MORNING-GLORYNative
Calystegia sepiumHEDGE BINDWEEDNative
Calystegia sepium subsp. binghamiaeSANTA BARBARA MORNING-GLORYNative
Calystegia sepium subsp. limnophilaNative
Calystegia silvatica subsp. disjunctaLARGE BINDWEEDNaturalized
Calystegia soldanellaNative
Calystegia stebbinsiiSTEBBINS' MORNING-GLORYNative
Calystegia subacaulisNative
Calystegia subacaulis subsp. episcopalisCAMBRIA MORNING-GLORYNative
Calystegia subacaulis subsp. subacaulisNative
Camassia
  ↳  Key to Camassia
CAMAS, QUAMASH
Camassia leichtlinii subsp. suksdorfiiNative
Camassia quamash
(Under Camassia leichtlinii subsp. suksdorfii)
Mentioned in
a note
Camassia quamash subsp. brevifloraNative
Camassia quamash subsp. linearis
(Under Camassia quamash subsp. breviflora)
Synonym
Camassia quamash subsp. quamash
(Under Camassia leichtlinii subsp. suksdorfii)
Synonym
CamelinaFALSE FLAX
Camelina alyssum
(Under Camelina)
Mentioned in
a note
Camelina microcarpaNaturalized
Camissonia
  ↳  Key to Camissonia
SUN CUP
Camissonia andina
(Under Neoholmgrenia andina)
Synonym
Camissonia arenaria
(Under Chylismia arenaria)
Synonym
Camissonia benitensisSAN BENITO EVENING-PRIMROSENative
Camissonia bistorta
(Under Camissoniopsis bistorta)
Synonym
Camissonia boothii
(Under Eremothera boothii)
Synonym
Camissonia boothii subsp. alyssoides
(Under Eremothera boothii subsp. alyssoides)
Synonym
Camissonia boothii subsp. boothii
(Under Eremothera boothii subsp. boothii)
Synonym
Camissonia boothii subsp. condensata
(Under Eremothera boothii subsp. condensata)
Synonym
Camissonia boothii subsp. decorticans
(Under Eremothera boothii subsp. decorticans)
Synonym
Camissonia boothii subsp. desertorum
(Under Eremothera boothii subsp. desertorum)
Synonym
Camissonia boothii subsp. intermedia
(Under Eremothera boothii subsp. intermedia)
Synonym
Camissonia brevipes
(Under Chylismia brevipes)
Synonym
Camissonia brevipes
(Under Chylismia claviformis subsp. integrior)
Mentioned in
a note
Camissonia brevipes subsp. arizonica
(Under Chylismia brevipes subsp. arizonica)
Synonym
Camissonia brevipes subsp. brevipes
(Under Chylismia brevipes subsp. brevipes)
Synonym
Camissonia brevipes subsp. pallidula
(Under Chylismia brevipes subsp. pallidula)
Synonym
Camissonia californica
(Under Eulobus californicus)
Synonym
Camissonia campestrisNative
Camissonia campestris subsp. campestrisNative
Camissonia campestris subsp. obispoensisNative
Camissonia cardiophylla
(Under Chylismia cardiophylla)
Synonym
Camissonia cardiophylla subsp. robusta
(Under Chylismia cardiophylla subsp. robusta)
Synonym
Camissonia chamaenerioides
(Under Eremothera chamaenerioides)
Synonym
Camissonia cheiranthifolia
(Under Camissoniopsis cheiranthifolia)
Synonym
Camissonia cheiranthifolia subsp. suffruticosa
(Under Camissoniopsis cheiranthifolia subsp. suffruticosa)
Synonym
Camissonia claviformis
(Under Chylismia claviformis)
Synonym
Camissonia claviformis subsp. aurantiaca
(Under Chylismia claviformis subsp. aurantiaca)
Synonym
Camissonia claviformis subsp. aurantiaca
(Under Chylismia claviformis subsp. integrior)
Mentioned in
a note
Camissonia claviformis subsp. cruciformis
(Under Chylismia claviformis subsp. cruciformis)
Synonym
Camissonia claviformis subsp. cruciformis
(Under Chylismia claviformis subsp. integrior)
Mentioned in
a note
Camissonia claviformis subsp. funerea
(Under Chylismia claviformis subsp. funerea)
Synonym
Camissonia claviformis subsp. integrior
(Under Chylismia claviformis subsp. integrior)
Synonym
Camissonia claviformis subsp. lancifolia
(Under Chylismia claviformis subsp. lancifolia)
Synonym
Camissonia claviformis subsp. peirsonii
(Under Chylismia claviformis subsp. peirsonii)
Synonym
Camissonia claviformis subsp. yumae
(Under Chylismia claviformis subsp. yumae)
Synonym
Camissonia confusa
(Under Camissoniopsis confusa)
Synonym
Camissonia contortaNative
Camissonia dentata
(Under Camissonia strigulosa)
Mentioned in
a note
Camissonia graciliflora
(Under Tetrapteron graciliflorum)
Synonym
Camissonia guadalupensis subsp. clementina
(Under Camissoniopsis guadalupensis subsp. clementina)
Synonym
Camissonia hardhamiae
(Under Camissoniopsis hardhamiae)
Synonym
Camissonia heterochroma
(Under Chylismia heterochroma)
Synonym
Camissonia hirtella
(Under Camissoniopsis hirtella)
Synonym
Camissonia ignota
(Under Camissoniopsis ignota)
Synonym
Camissonia integrifoliaKERN RIVER EVENING-PRIMROSENative
Camissonia intermedia
(Under Camissoniopsis intermedia)
Synonym
Camissonia kernensisNative
Camissonia kernensis subsp. gilmaniiNative
Camissonia kernensis subsp. kernensisKERN COUNTY EVENING-PRIMROSENative
Camissonia lacustrisNative
Camissonia lewisii
(Under Camissoniopsis lewisii)
Synonym
Camissonia luciae
(Under Camissoniopsis luciae)
Synonym
Camissonia micrantha
(Under Camissoniopsis micrantha)
Synonym
Camissonia minor
(Under Eremothera minor)
Synonym
Camissonia munzii
(Under Chylismia munzii)
Synonym
Camissonia ovata
(Under Taraxia ovata)
Synonym
Camissonia pallida
(Under Camissoniopsis pallida)
Synonym
Camissonia pallida subsp. hallii
(Under Camissoniopsis pallida subsp. hallii)
Synonym
Camissonia pallida subsp. pallida
(Under Camissoniopsis pallida subsp. pallida)
Synonym
Camissonia palmeri
(Under Tetrapteron palmeri)
Synonym
Camissonia parvulaNative
Camissonia pterosperma
(Under Chylismiella pterosperma)
Synonym
Camissonia pubensNative
Camissonia pusillaNative
Camissonia refracta
(Under Eremothera refracta)
Synonym
Camissonia robusta
(Under Camissoniopsis robusta)
Synonym
Camissonia sierraeNative
Camissonia sierrae subsp. alticolaMONO HOT SPRINGS EVENING-PRIMROSENative
Camissonia sierrae subsp. sierraeYOSEMITE EVENING-PRIMROSENative
Camissonia strigulosaNative
Camissonia subacaulis
(Under Taraxia subacaulis)
Synonym
Camissonia tanacetifolia
(Under Taraxia tanacetifolia)
Synonym
Camissonia tanacetifolia subsp. quadriperforata
(Under Taraxia tanacetifolia)
Synonym
Camissonia walkeri subsp. tortilis
(Under Chylismia walkeri subsp. tortilis)
Synonym
Camissoniopsis
  ↳  Key to Camissoniopsis
Camissoniopsis bistortaCALIFORNIA SUN CUPNative
Camissoniopsis cheiranthifoliaBEACH EVENING-PRIMROSENative
Camissoniopsis cheiranthifolia subsp. cheiranthifoliaNative
Camissoniopsis cheiranthifolia subsp. suffruticosaNative
Camissoniopsis confusaNative
Camissoniopsis guadalupensis subsp. clementinaSAN CLEMENTE ISLAND EVENING-PRIMROSENative
Camissoniopsis hardhamiaeHARDHAM'S EVENING-PRIMROSENative
Camissoniopsis hirtellaNative
Camissoniopsis ignotaNative
Camissoniopsis intermediaNative
Camissoniopsis lewisiiLEWIS' EVENING-PRIMROSENative
Camissoniopsis luciaeNative
Camissoniopsis micranthaNative
Camissoniopsis pallidaNative
Camissoniopsis pallida subsp. halliiNative
Camissoniopsis pallida subsp. pallidaNative
Camissoniopsis robustaNative
Campanula
  ↳  Key to Campanula
HAREBELL
Campanula angustifloraNative
Campanula angustiflora var. exilis
(Under Campanula griffinii)
Synonym
Campanula californicaSWAMP HAREBELLNative
Campanula exiguaCHAPARRAL HAREBELLNative
Campanula griffiniiNative
Campanula medium
(Under Campanula)
Mentioned in
a note
Campanula prenanthoides
(Under Asyneuma prenanthoides)
Synonym
Campanula prenanthoides
(Under Campanula)
Mentioned in
a note
Campanula rotundifoliaNative
Campanula scabrellaROUGH HAREBELLNative
Campanula scouleriSCOULER'S HAREBELLNative
Campanula sharsmithiaeSHARSMITH'S HAREBELLNative
Campanula shetleriCASTLE CRAGS HAREBELLNative
Campanula wilkinsianaWILKINS' HAREBELLNative
Campanulaceae
  ↳  Key to Campanulaceae
BELLFLOWER FAMILY
CampsisTRUMPET-CREEPER
Campsis radicansWaif
Canbya
Canbya candidaWHITE PYGMY-POPPYNative
Cannabaceae
  ↳  Key to Cannabaceae
HEMP FAMILY
CannabisHEMP
Cannabis indica
(Under Cannabis sativa)
Synonym
Cannabis sativaHEMP, MARIJUANANaturalized
Cantua pungens
(Under Linanthus pungens)
Synonym
Capnorea campanulata
(Under Hesperochiron pumilus)
Synonym
Capnorea ciliata
(Under Hesperochiron pumilus)
Synonym
Capnorea fulcrata
(Under Hesperochiron pumilus)
Synonym
Capnorea hirtella
(Under Hesperochiron pumilus)
Synonym
Capnorea incanus
(Under Hesperochiron californicus)
Synonym
Capnorea lasiantha
(Under Hesperochiron californicus)
Synonym
Capnorea macilenta
(Under Hesperochiron californicus)
Synonym
Capnorea nana
(Under Hesperochiron californicus)
Synonym
Capnorea nervosa
(Under Hesperochiron pumilus)
Synonym
Capnorea strigosa
(Under Hesperochiron californicus)
Synonym
Capnorea villosula
(Under Hesperochiron pumilus)
Synonym
Capnorea watsoniana
(Under Hesperochiron californicus)
Synonym
Caprifoliaceae
  ↳  Key to Caprifoliaceae
HONEYSUCKLE FAMILY
CapsellaSHEPHERD'S PURSE
Capsella bursa-pastorisNaturalized
Caragana arborescens
(Under Fabaceae (Leguminosae))
Mentioned in
a note
Cardamine
  ↳  Key to Cardamine
BITTER-CRESS
Cardamine angulataNative
Cardamine bellidifoliaNative
Cardamine bellidifolia var. pachyphylla
(Under Cardamine bellidifolia)
Synonym
Cardamine breweriNative
Cardamine breweri var. breweri
(Under Cardamine breweri)
Synonym
Cardamine breweri var. orbicularis
(Under Cardamine breweri)
Synonym
Cardamine californicaMILK MAIDS, TOOTH WORTNative
Cardamine californica var. californica
(Under Cardamine californica)
Synonym
Cardamine californica var. cardiophylla
(Under Cardamine californica)
Synonym
Cardamine californica var. cuneata
(Under Cardamine californica)
Synonym
Cardamine californica var. integrifolia
(Under Cardamine californica)
Synonym
Cardamine californica var. sinuata
(Under Cardamine californica)
Synonym
Cardamine cordifoliaNative
Cardamine cordifolia var. lyallii
(Under Cardamine cordifolia)
Synonym
Cardamine flexuosa
(Under Cardamine)
Mentioned in
a note
Cardamine gambelii
(Under Nasturtium gambelii)
Synonym
Cardamine gemmata
(Under Cardamine nuttallii)
Synonym
Cardamine hirsutaNaturalized
Cardamine lyallii
(Under Cardamine cordifolia)
Synonym
Cardamine nuttalliiNative
Cardamine nuttallii var. covilleana
(Under Cardamine nuttallii)
Synonym
Cardamine nuttallii var. dissecta
(Under Cardamine nuttallii)
Synonym
Cardamine nuttallii var. gemmata
(Under Cardamine nuttallii)
Synonym
Cardamine nuttallii var. nuttallii
(Under Cardamine nuttallii)
Synonym
Cardamine occidentalisNative
Cardamine oligospermaNative
Cardamine pachystigmaNative
Cardamine pachystigma var. dissectifolia
(Under Cardamine californica)
Synonym
Cardamine pensylvanicaNative
Cardamine pulcherrima var. tenella
(Under Cardamine nuttallii)
Synonym
Cardamine tenella var. dissecta
(Under Cardamine nuttallii)
Synonym
Cardaria chalepensis
(Under Lepidium chalepense)
Synonym
Cardaria draba
(Under Lepidium draba)
Synonym
Cardaria draba subsp. chalepensis
(Under Lepidium chalepense)
Synonym
Cardaria pubescens
(Under Lepidium appelianum)
Synonym
Cardaria pubescens var. elongata
(Under Lepidium appelianum)
Synonym
CardionemaSANDMAT
Cardionema ramosissimumNative
Carduus
  ↳  Key to Carduus
Carduus acanthoides subsp. acanthoidesPLUMELESS THISTLENaturalized
Carduus nutansMUSK THISTLENaturalized
Carduus nutans var. leiophyllus
(Under Carduus nutans)
Synonym
Carduus pycnocephalus subsp. pycnocephalusITALIAN THISTLENaturalized
Carduus tenuiflorusNaturalized
Carex
  ↳  Key to Carex
SEDGE
Carex ablata
(Under Carex luzulina)
Synonym
Carex abruptaABRUPT-BEAKED SEDGENative
Carex albida
(Under Carex lemmonii)
Synonym
Carex albonigra
(Under Carex)
Mentioned in
a note
Carex albonigra
(Under Carex orestera)
Mentioned in
a note
Carex almaSTURDY SEDGENative
Carex amplectens
(Under Carex fracta)
Synonym
Carex amplifoliaBIG-LEAF SEDGENative
Carex angustataNARROW-LEAVED SEDGENative
Carex angustior
(Under Carex echinata subsp. echinata)
Synonym
Carex aquatilisNative
Carex aquatilis var. aquatilisWATER SEDGENative
Carex aquatilis var. divesSITKA SEDGENative
Carex arctaNORTHERN CLUSTERED SEDGENative
Carex atherodesWHEAT SEDGENative
Carex athrostachyaLONG-BRACTED SEDGENative
Carex aureaGOLDEN SEDGENative
Carex aurea var. androgyna
(Under Carex hassei)
Synonym
Carex barbaraeWHITEROOT or SANTA BARBARA SEDGENative
Carex bella
(Under Carex heteroneura)
Synonym
Carex bifida
(Under Carex serratodens)
Synonym
Carex bolanderiBOLANDER'S SEDGENative
Carex brainerdiiBRAINERD'S SEDGENative
Carex brevicaulisSHORT-STEMMED SEDGENative
Carex breviligulata
(Under Carex densa)
Synonym
Carex brevipes
(Under Carex deflexa var. boottii)
Synonym
Carex breweriBREWER'S SEDGENative
Carex brunnescens
(Under Carex laeviculmis)
Synonym
Carex buxbaumiiBUXBAUM'S SEDGENative
Carex californicaCALIFORNIA SEDGENative
Carex canescens subsp. canescensSILVERY SEDGENative
Carex capillaris
(Under Carex tiogana)
Mentioned in
a note
Carex capitataCAPITATE SEDGENative
Carex capitata subsp. arctogena
(Under Carex capitata)
Synonym
Carex capitata subsp. capitata
(Under Carex capitata)
Synonym
Carex cephalophora
(Under Carex)
Mentioned in
a note
Carex comosaBRISTLY SEDGENative
Carex concinnoidesNORTHWESTERN SEDGENative
Carex congdoniiCONGDON'S SEDGENative
Carex constanceana
(Under Carex davyi)
Synonym
Carex cusickiiCUSICK'S SEDGENative
Carex cyrtostachyaARCHING SEDGENative
Carex danaensis
(Under Carex incurviformis)
Synonym
Carex davyiDAVY'S SEDGENative
Carex deflexa var. boottiiMOUNTAIN MAT SEDGENative
Carex deflexa var. deflexa
(Under Carex deflexa var. boottii)
Mentioned in
a note
Carex densaDENSE SEDGENative
Carex deweyana subsp. leptopoda
(Under Carex leptopoda)
Synonym
Carex diandraLESSER TUSSOCK SEDGENative
Carex dispermaTWO-SEEDED SEDGENative
Carex divulsa subsp. divulsaGRAY SEDGENaturalized
Carex douglasiiDOUGLAS' SEDGENative
Carex dudleyi
(Under Carex densa)
Synonym
Carex duriusculaSPIKELETRUSH SEDGENative
Carex eastwoodiana
(Under Carex tahoensis)
Synonym
Carex echinataNative
Carex echinata subsp. echinataSTAR SEDGENative
Carex echinata subsp. phyllomanicaCOASTAL STAR SEDGENative
Carex eleocharis
(Under Carex duriuscula)
Synonym
Carex epapillosa
(Under Carex heteroneura)
Synonym
Carex eurycarpa
(Under Carex angustata)
Synonym
Carex exserta
(Under Carex filifolia var. erostrata)
Synonym
Carex exsiccataWESTERN INFLATED SEDGENative
Carex festivella
(Under Carex microptera)
Synonym
Carex fetaGREEN-SHEATHED SEDGENative
Carex filifoliaNative
Carex filifolia var. erostrataSAGEBRUSH SEDGENative
Carex filifolia var. filifoliaTHREAD-LEAVED SEDGENative
Carex fissuricolaCLEFT SEDGENative
Carex fractaFRAGILE-SHEATHED SEDGENative
Carex garberi
(Under Carex hassei)
Synonym
Carex geophila
(Under Carex rossii)
Synonym
Carex geyeriGEYER'S SEDGENative
Carex gigas
(Under Carex scabriuscula)
Synonym
Carex globosaROUND-FRUITED SEDGENative
Carex graciliorSLENDER SEDGENative
Carex gymnoclada
(Under Carex scopulorum var. bracteosa)
Synonym
Carex gynodynamaWONDER-WOMAN SEDGENative
Carex hallianaOREGON SEDGENative
Carex hallii
(Under Carex idahoa)
Mentioned in
a note
Carex harfordiiHARFORD'S SEDGE, MONTEREY SEDGENative
Carex hasseiHASSE'S SEDGENative
Carex haydenianaCLOUD or HAYDEN'S SEDGENative
Carex helleriHELLER'S SEDGENative
Carex hendersoniiTIMBER or HENDERSON'S SEDGENative
Carex heteroneuraSMOOTH-FRUITED SEDGENative
Carex heteroneura var. epapillosa
(Under Carex heteroneura)
Synonym
Carex heteroneura var. heteroneura
(Under Carex heteroneura)
Synonym
Carex hindsii
(Under Carex lenticularis var. limnophila)
Synonym
Carex hirtissimaFUZZY SEDGENative
Carex hoodiiHOOD'S SEDGENative
Carex hystericinaPORCUPINE SEDGENative
Carex hystricina
(Under Carex hystericina)
Synonym
Carex idahoaIDAHO SEDGENative
Carex illotaSHEEP SEDGENative
Carex incurviformisMOUNT DANA or INCURVED SEDGENative
Carex incurviformis var. danaensis
(Under Carex incurviformis)
Synonym
Carex incurviformis var. incurviformis
(Under Carex incurviformis)
Synonym
Carex infirminerviaWEAKLY VEINED SEDGENative
Carex inflata
(Under Carex vesicaria)
Synonym
Carex inops subsp. inopsVOLCANO or LONG-RHIZOMED SEDGENative
Carex integraSMOOTH-BEAKED SEDGENative
Carex interiorINLAND SEDGENative
Carex inversaKANGAROO or KNOB SEDGENaturalized
Carex jepsonii
(Under Carex whitneyi)
Synonym
Carex jonesiiJONES' SEDGENative
Carex kelloggii
(Under Carex lenticularis var. lipocarpa)
Synonym
Carex klamathensisKLAMATH SEDGENative
Carex laeviculmisSMOOTH-STEMMED SEDGENative
Carex lanuginosa
(Under Carex pellita)
Synonym
Carex lasiocarpaWOOLLY-FRUITED SEDGENative
Carex leavenworthiiLEAVENWORTH SEDGEUrban weed
Carex lemmoniiLEMMON'S SEDGENative
Carex lenticularisNative
Carex lenticularis var. impressaTARN SEDGENative
Carex lenticularis var. limnophilaLAGOON SEDGENative
Carex lenticularis var. lipocarpaLAKESHORE SEDGENative
Carex leporinaHARE or OVAL SEDGENative
Carex leporinellaBOG HARE SEDGENative
Carex leptaleaBRISTLE-STALKED SEDGENative
Carex leptopodaSLENDER-FOOTED SEDGENative
Carex liddonii
(Under Carex petasata)
Synonym
Carex limosaMUD SEDGENative
Carex lividaLIVID SEDGENative
Carex longiiGREEN-AND-WHITE SEDGENaturalized
Carex luzulifoliaLITTLE-LEAVED SEDGENative
Carex luzulinaWOODRUSH SEDGENative
Carex luzulina var. ablata
(Under Carex luzulina)
Synonym
Carex luzulina var. atropurpurea
(Under Carex luzulina)
Synonym
Carex luzulina var. luzulina
(Under Carex luzulina)
Synonym
Carex lyngbyeiLYNGBYE'S SEDGENative
Carex macloviana
(Under Carex haydeniana)
Mentioned in
a note
Carex macloviana subsp. pachystachya
(Under Carex pachystachya)
Synonym
Carex mariposanaMARIPOSA SEDGENative
Carex mendocinensisMENDOCINO SEDGENative
Carex mertensiiMERTENS' SEDGENative
Carex mesochorea
(Under Carex)
Mentioned in
a note
Carex micropoda
(Under Carex subnigricans)
Synonym
Carex micropteraSMALL-WINGED SEDGENative
Carex microstachys
(Under Carex leptalea)
Synonym
Carex molesta
(Under Carex)
Mentioned in
a note
Carex montereyensis
(Under Carex harfordii)
Synonym
Carex multicaulisSTICK SEDGENative
Carex multicostataMANY-RIBBED SEDGENative
Carex nebrascensisNEBRASKA SEDGENative
Carex nervinaSIERRA SEDGENative
Carex neurophoraVEINED or ALPINE NERVED SEDGENative
Carex nigricansBLACK ALPINE SEDGENative
Carex norvegica
(Under Carex stevenii)
Synonym
Carex novae-angliae var. rossii
(Under Carex rossii)
Synonym
Carex nubicola
(Under Carex haydeniana)
Synonym
Carex nudataTORRENT SEDGENative
Carex obispoensisSAN LUIS OBISPO SEDGENative
Carex obnuptaSLOUGH SEDGENative
Carex occidentalisWESTERN SEDGENative
Carex oederi
(Under Carex viridula subsp. viridula)
Synonym
Carex olympica
(Under Carex pachystachya)
Synonym
Carex oregonensis
(Under Carex halliana)
Synonym
Carex oresteraBOULDER SEDGENative
Carex ormantha
(Under Carex echinata subsp. echinata)
Synonym
Carex ovalis
(Under Carex leporina)
Synonym
Carex oxycarpa
(Under Carex angustata)
Synonym
Carex pachycarpaFURROWED BROOMSEDGENative
Carex pachystachyaSTARRY BROOMSEDGENative
Carex pachystachya
(Under Carex pachystachya)
Synonym
Carex pachystachya var. gracilis
(Under Carex pachystachya)
Synonym
Carex pansaSAND DUNE SEDGENative
Carex parryana
(Under Carex idahoa)
Mentioned in
a note
Carex parryana subsp. idahoa
(Under Carex idahoa)
Synonym
Carex parryana var. hallii
(Under Carex idahoa)
Synonym
Carex paucicostata
(Under Carex lenticularis var. impressa)
Synonym
Carex paucifructus
(Under Carex mariposana)
Synonym
Carex pellitaWOOLLY SEDGENative
Carex pendulaPENDULOUS SEDGENaturalized
Carex pensylvanica var. vespertina
(Under Carex inops subsp. inops)
Synonym
Carex petasataLIDDON'S SEDGENative
Carex phaeocephalaDUNHEAD or ALPINE HARE SEDGENative
Carex phaeocephala f. eastwoodiana
(Under Carex tahoensis)
Synonym
Carex phyllomanica
(Under Carex echinata subsp. phyllomanica)
Synonym
Carex piperi
(Under Carex praticola)
Synonym
Carex pityophila
(Under Carex)
Mentioned in
a note
Carex polytrichoides
(Under Carex leptalea)
Synonym
Carex praeceptorumTEACHER SEDGENative
Carex praegracilisBLACK CREEPER or FREEWAY SEDGENative
Carex praticolaNORTHERN MEADOW SEDGENative
Carex presliiPRESL'S SEDGENative
Carex propositaPOTATO CHIP SEDGENative
Carex pseudoscirpoidea
(Under Carex scirpoidea subsp. pseudoscirpoidea)
Synonym
Carex pyrenaica
(Under Carex subnigricans)
Synonym
Carex raynoldsiiRAYNOLD'S SEDGENative
Carex retroflexa var. texensis
(Under Carex texensis)
Synonym
Carex rossiiROSS' SEDGENative
Carex rostrata
(Under Carex utriculata)
Synonym
Carex saliniformisDECEIVING SEDGENative
Carex sartwellianaSARTWELL'S or YOSEMITE SEDGENative
Carex scabriusculaSISKIYOU SEDGENative
Carex schottiiSCHOTT'S SEDGENative
Carex scirpoidea subsp. pseudoscirpoideaWESTERN SINGLE-SPIKED SEDGENative
Carex scirpoidea var. pseudoscirpoidea
(Under Carex scirpoidea subsp. pseudoscirpoidea)
Synonym
Carex scoparia var. scopariaPOINTED BROOMSEDGENative
Carex scopulorum var. bracteosaMOUNTAIN SEDGENative
Carex sentaWESTERN ROUGH SEDGENative
Carex serpenticolaSERPENTINE SEDGENative
Carex serratodensSAW-TOOTHED SEDGENative
Carex sheldoniiSHELDON'S SEDGENative
Carex simulataSHORT-BEAKED or ANALOG SEDGENative
Carex sitchensis
(Under Carex aquatilis var. dives)
Synonym
Carex sonomensis
(Under Carex lemmonii)
Synonym
Carex specificaNARROW-FRUITED SEDGENative
Carex spectabilisSHOWY SEDGENative
Carex spissaSAN DIEGO SEDGENative
Carex stenophylla
(Under Carex duriuscula)
Mentioned in
a note
Carex steveniiSTEVEN'S SEDGENative
Carex stipata var. stipataAWL-FRUITED SEDGENative
Carex straminiformisMOUNT SHASTA SEDGENative
Carex subbracteataSMALL-BRACTED SEDGENative
Carex subfuscaRUSTY or PALE BROOMSEDGENative
Carex subnigricansDARK MOUNTAIN SEDGENative
Carex tahoensisTAHOE SEDGENative
Carex teneriformis
(Under Carex subfusca)
Synonym
Carex texensisTEXAS SEDGENaturalized
Carex tioganaTIOGA PASS SEDGENative
Carex tompkinsiiTOMPKINS' SEDGENative
Carex tracyi
(Under Carex leporina)
Synonym
Carex triquetraTRIGONOUS SEDGENative
Carex tumulicolaFOOTHILL SEDGENative
Carex unilateralisONE-SIDED SEDGENative
Carex utriculataSOUTHERN BEAKED SEDGENative
Carex vallicolaWESTERN VALLEY SEDGENative
Carex vernaculaFOETID SEDGENative
Carex vesicariaINFLATED SEDGENative
Carex vesicaria var. major
(Under Carex exsiccata)
Synonym
Carex vicaria
(Under Carex densa)
Synonym
Carex viridula subsp. viridulaGREEN YELLOW SEDGENative
Carex viridula var. viridula
(Under Carex viridula subsp. viridula)
Synonym
Carex vulpinoideaBROWN FOX SEDGENaturalized
Carex whitneyiWHITNEY'S SEDGENative
Carex xerophilaCHAPARRAL SEDGENative
Carex yosemitana
(Under Carex sartwelliana)
Synonym
Carlowrightia
Carlowrightia arizonicaARIZONA CARLOWRIGHTIA, ARIZONA WRIGHTWORTNative
Carlquistia
Carlquistia muiriiMUIR'S TARPLANTNative
CarnegieaSAGUARO
Carnegiea giganteaNative
Caroxylon vermiculatum
(Under Salsola damascena)
Synonym
Carpenteria
Carpenteria californicaTREE-ANEMONENative
Carpobrotus
  ↳  Key to Carpobrotus
Carpobrotus chilensisSEA FIGNaturalized
Carpobrotus edulisFREEWAY ICEPLANTNaturalized
Carpobrotus mellei
(Under Carpobrotus chilensis)
Mentioned in
a note
Carrichtera
Carrichtera annuaWaif
Carsonia
Carsonia sparsifoliaNative
Carthamus
  ↳  Key to Carthamus
DISTAFF THISTLE
Carthamus baeticus
(Under Carthamus creticus)
Synonym
Carthamus creticusSMOOTH DISTAFF THISTLENaturalized
Carthamus lanatusWOOLLY DISTAFF THISTLENaturalized
Carthamus lanatus subsp. baeticus
(Under Carthamus creticus)
Synonym
Carthamus lanatus subsp. lanatus
(Under Carthamus lanatus)
Synonym
Carthamus leucocaulosWHITESTEM DISTAFF THISTLEExtirpated alien
Carthamus tinctoriusSAFFLOWERWaif
Carum lemmonii
(Under Perideridia lemmonii)
Synonym
CaryaHICKORY
Carya illinoinensisPECANNaturalized
Caryophyllaceae
  ↳  Key to Caryophyllaceae
PINK FAMILY
Cascadia
Cascadia nuttalliiNative
Cassia armata
(Under Senna armata)
Synonym
Cassia artemisioides
(Under Senna artemisioides)
Synonym
Cassia covesii
(Under Senna covesii)
Synonym
Cassia didymobotrya
(Under Senna didymobotrya)
Synonym
Cassia eremophila
(Under Senna artemisioides)
Synonym
Cassia marilandica
(Under Senna marilandica)
Synonym
Cassia tomentosa
(Under Senna multiglandulosa)
Synonym
CassiopeMOSS HEATHER
Cassiope mertensianaWHITE HEATHERNative
Cassiope mertensiana subsp. californica
(Under Cassiope mertensiana)
Mentioned in
a note
Cassiope mertensiana subsp. ciliolata
(Under Cassiope mertensiana)
Mentioned in
a note
Castanea chrysophylla
(Under Chrysolepis chrysophylla var. chrysophylla)
Synonym
Castanopsis chrysophylla var. chrysophylla
(Under Chrysolepis chrysophylla var. chrysophylla)
Synonym
Castanopsis chrysophylla var. minor
(Under Chrysolepis chrysophylla var. minor)
Synonym
Castanopsis sempervirens
(Under Chrysolepis sempervirens)
Synonym
Castela
Castela emoryiEMORY'S CRUCIFIXION-THORNNative
Castilleja
  ↳  Key to Castilleja
PAINTBRUSH, OWL'S-CLOVER
Castilleja affinisNative
Castilleja affinis subsp. affinisNative
Castilleja affinis subsp. litoralisOREGON COAST PAINTBRUSHNative
Castilleja affinis subsp. neglectaTIBURON PAINTBRUSHNative
Castilleja ambiguaJOHNNY-NIPNative
Castilleja ambigua subsp. ambiguaNative
Castilleja ambigua subsp. humboldtiensisHUMBOLDT BAY OWL'S-CLOVERNative
Castilleja ambigua subsp. insalutataNative
Castilleja angustifolia
(Under Castilleja chromosa)
Synonym
Castilleja applegateiNative
Castilleja applegatei subsp. distichaNative
Castilleja applegatei subsp. martiniiNative
Castilleja applegatei subsp. pallidaNative
Castilleja applegatei subsp. pinetorumNative
Castilleja arachnoideaNative
Castilleja arachnoidea subsp. schizotricha
(Under Castilleja schizotricha)
Synonym
Castilleja arachnoidea subsp. shastensis
(Under Castilleja arachnoidea)
Synonym
Castilleja attenuataVALLEY TASSELSNative
Castilleja brevilobataSHORT-LOBED PAINTBRUSHNative
Castilleja brevistylaNative
Castilleja breweri
(Under Castilleja applegatei subsp. pallida)
Synonym
Castilleja breweri var. pallida
(Under Castilleja applegatei subsp. pallida)
Synonym
Castilleja campestrisNative
Castilleja campestris subsp. campestrisNative
Castilleja campestris subsp. succulentaSUCCULENT OWL'S-CLOVERNative
Castilleja chromosaDESERT PAINTBRUSHNative
Castilleja chrymactis
(Under Castilleja)
Mentioned in
a note
Castilleja cinereaASH-GRAY PAINTBRUSHNative
Castilleja culbertsonii
(Under Castilleja lemmonii)
Synonym
Castilleja densifloraNative
Castilleja densiflora subsp. densifloraNative
Castilleja densiflora subsp. gracilisNative
Castilleja densiflora subsp. obispoensisSAN LUIS OBISPO OWL'S-CLOVERNative
Castilleja disticha
(Under Castilleja applegatei subsp. disticha)
Synonym
Castilleja elata
(Under Castilleja miniata subsp. elata)
Synonym
Castilleja exilis
(Under Castilleja minor subsp. minor)
Synonym
Castilleja exsertaPURPLE OWL'S-CLOVERNative
Castilleja exserta subsp. exsertaNative
Castilleja exserta subsp. latifoliaNative
Castilleja exserta subsp. venustaNative
Castilleja foliolosaWOOLLY PAINTBRUSHNative
Castilleja franciscana
(Under Castilleja subinclusa subsp. franciscana)
Synonym
Castilleja gleasoniMOUNT GLEASON PAINTBRUSHNative
Castilleja griseaSAN CLEMENTE ISLAND PAINTBRUSHNative
Castilleja hispida subsp. brevilobata
(Under Castilleja brevilobata)
Synonym
Castilleja hololeucaISLAND PAINTBRUSHNative
Castilleja hololeuca subsp. grisea
(Under Castilleja grisea)
Synonym
Castilleja jepsonii
(Under Castilleja subinclusa subsp. subinclusa)
Synonym
Castilleja laceraNative
Castilleja lanata subsp. hololeuca
(Under Castilleja hololeuca)
Synonym
Castilleja lasiorhynchaSAN BERNARDINO MOUNTAINS OWL'S-CLOVERNative
Castilleja latifoliaMONTEREY COAST PAINTBRUSHNative
Castilleja latifolia subsp. mendocinensis
(Under Castilleja mendocinensis)
Synonym
Castilleja lemmoniiNative
Castilleja linariifoliaNative
Castilleja linearilobaNative
Castilleja litoralis
(Under Castilleja affinis subsp. litoralis)
Synonym
Castilleja martinii
(Under Castilleja applegatei subsp. martinii)
Synonym
Castilleja martinii var. clokeyi
(Under Castilleja applegatei subsp. martinii)
Synonym
Castilleja mendocinensisMENDOCINO COAST PAINTBRUSHNative
Castilleja miniataNative
Castilleja miniata subsp. elataSISKIYOU PAINTBRUSHNative
Castilleja miniata subsp. miniataNative
Castilleja minorNative
Castilleja minor subsp. minorNative
Castilleja minor subsp. spiralisNative
Castilleja mollisSOFT-LEAVED PAINTBRUSHNative
Castilleja montigenaHECKARD'S PAINTBRUSHNative
Castilleja nanaNative
Castilleja neglecta
(Under Castilleja affinis subsp. neglecta)
Synonym
Castilleja oblongifolia
(Under Castilleja miniata subsp. miniata)
Synonym
Castilleja parviflora
(Under Castilleja peirsonii)
Synonym
Castilleja peirsoniiNative
Castilleja pilosaNative
Castilleja pilosa subsp. jusselii
(Under Castilleja pilosa)
Synonym
Castilleja plagiotomaMOJAVE PAINTBRUSHNative
Castilleja praeteritaNative
Castilleja pruinosaNative
Castilleja pruinosa
(Under Castilleja gleasoni)
Synonym
Castilleja psittacina
(Under Castilleja pilosa)
Synonym
Castilleja roseana
(Under Castilleja applegatei subsp. martinii)
Synonym
Castilleja rubicundulaCREAM SACSNative
Castilleja rubicundula subsp. lithospermoidesNative
Castilleja rubicundula subsp. rubicundulaPINK CREAMSACSNative
Castilleja schizotrichaSPLIT-HAIR PAINTBRUSHNative
Castilleja stenantha
(Under Castilleja minor subsp. spiralis)
Synonym
Castilleja stenantha subsp. spiralis
(Under Castilleja minor subsp. spiralis)
Synonym
Castilleja subinclusaNative
Castilleja subinclusa subsp. franciscanaNative
Castilleja subinclusa subsp. subinclusaNative
Castilleja succulenta
(Under Castilleja campestris subsp. succulenta)
Synonym
Castilleja tenuisNative
Castilleja uliginosa
(Under Castilleja miniata subsp. miniata)
Mentioned in
a note
Castilleja wightiiNative
Catalpa
  ↳  Key to Catalpa
SOUTHERN CATALPA
Catalpa bignonioidesNaturalized
Catalpa speciosaNaturalized
Catharanthus
Catharanthus roseusMADAGASCAR PERIWINKLEWaif
Caucalis microcarpa
(Under Yabea microcarpa)
Synonym
Caulanthus
  ↳  Key to Caulanthus
JEWELFLOWER
Caulanthus amplexicaulisNative
Caulanthus amplexicaulis var. amplexicaulis
(Under Caulanthus amplexicaulis)
Synonym
Caulanthus amplexicaulis var. barbarae
(Under Caulanthus amplexicaulis)
Synonym
Caulanthus ancepsNative
Caulanthus californicusCALIFORNIA JEWELFLOWERNative
Caulanthus cooperiNative
Caulanthus coulteriNative
Caulanthus coulteri var. lemmonii
(Under Caulanthus lemmonii)
Synonym
Caulanthus crassicaulisTHICK-STEM WILD CABBAGENative
Caulanthus crassicaulis var. crassicaulis
(Under Caulanthus crassicaulis)
Synonym
Caulanthus crassicaulis var. glaber
(Under Caulanthus crassicaulis)
Synonym
Caulanthus flavescensNative
Caulanthus glaber
(Under Caulanthus crassicaulis)
Synonym
Caulanthus glaucusNative
Caulanthus halliiNative
Caulanthus heterophyllusNative
Caulanthus heterophyllus var. pseudosimulans
(Under Caulanthus heterophyllus)
Synonym
Caulanthus inflatusDESERT CANDLENative
Caulanthus lasiophyllusCALIFORNIA MUSTARDNative
Caulanthus lasiophyllus var. inalienus
(Under Caulanthus lasiophyllus)
Synonym
Caulanthus lasiophyllus var. rigidus
(Under Caulanthus lasiophyllus)
Synonym
Caulanthus lasiophyllus var. utahensis
(Under Caulanthus lasiophyllus)
Synonym
Caulanthus lemmoniiLEMMON'S JEWELFLOWERNative
Caulanthus majorNative
Caulanthus major var. major
(Under Caulanthus major)
Synonym
Caulanthus major var. nevadensis
(Under Caulanthus major)
Synonym
Caulanthus pilosusCHOCOLATE DROPSNative
Caulanthus simulansPAYSON'S JEWELFLOWERNative
Caulanthus stenocarpus
(Under Caulanthus heterophyllus)
Synonym
Caulostramina jaegeri
(Under Hesperidanthus jaegeri)
Synonym
Ceanothus
  ↳  Key to Ceanothus
CALIFORNIA-LILAC
Ceanothus ×otayensis McMinn
(Under Ceanothus otayensis)
Synonym
Ceanothus andersonii
(Under Ceanothus integerrimus var. integerrimus)
Synonym
Ceanothus arboreusFELTLEAF CEANOTHUSNative
Ceanothus arboreus var. arboreus
(Under Ceanothus arboreus)
Synonym
Ceanothus arboreus var. glaber
(Under Ceanothus arboreus)
Synonym
Ceanothus arboreus var. glabra
(Under Ceanothus arboreus)
Synonym
Ceanothus arcuatusARCHING CEANOTHUSNative
Ceanothus confususRINCON RIDGE CEANOTHUSNative
Ceanothus cordulatusMOUNTAIN WHITETHORNNative
Ceanothus crassifoliusHOARYLEAF CEANOTHUSNative
Ceanothus crassifolius var. crassifoliusNative
Ceanothus crassifolius var. planusNative
Ceanothus cuneatusNative
Ceanothus cuneatus var. cuneatusBUCKBRUSHNative
Ceanothus cuneatus var. dubius
(Under Ceanothus cuneatus var. cuneatus)
Synonym
Ceanothus cuneatus var. fascicularisLOMPOC CEANOTHUSNative
Ceanothus cuneatus var. ramulosusNative
Ceanothus cuneatus var. rigidus
(Under Ceanothus rigidus)
Synonym
Ceanothus cuneatus var. submontanus
(Under Ceanothus cuneatus var. cuneatus)
Synonym
Ceanothus cyaneusLAKESIDE CEANOTHUSNative
Ceanothus decornutusNICASIO CEANOTHUSNative
Ceanothus dentatusNative
Ceanothus divaricatus var. laetiflorus
(Under Ceanothus leucodermis)
Synonym
Ceanothus divergensCALISTOGA CEANOTHUSNative
Ceanothus divergens subsp. confusus
(Under Ceanothus confusus)
Synonym
Ceanothus diversifoliusPINE MATNative
Ceanothus ferrisae
(Under Ceanothus ferrisiae)
Synonym
Ceanothus ferrisiaeCOYOTE CEANOTHUSNative
Ceanothus floribundus
(Under Ceanothus dentatus)
Synonym
Ceanothus foliosusNative
Ceanothus foliosus var. foliosusWAVYLEAF CEANOTHUSNative
Ceanothus foliosus var. mediusLA CUESTA CEANOTHUSNative
Ceanothus foliosus var. vineatusVINE HILL CEANOTHUSNative
Ceanothus fresnensisFRESNO CEANOTHUSNative
Ceanothus gloriosusNative
Ceanothus gloriosus var. exaltatusGLORY BRUSHNative
Ceanothus gloriosus var. gloriosusPOINT REYES CEANOTHUSNative
Ceanothus gloriosus var. porrectusMOUNT VISION CEANOTHUSNative
Ceanothus greggii var. perplexans
(Under Ceanothus perplexans)
Synonym
Ceanothus greggii var. vestitus
(Under Ceanothus pauciflorus)
Synonym
Ceanothus griseus
(Under Ceanothus thyrsiflorus var. griseus)
Synonym
Ceanothus griseus var. horizontalis
(Under Ceanothus thyrsiflorus var. griseus)
Mentioned in
a note
Ceanothus hearstiorumHEARSTS' CEANOTHUSNative
Ceanothus impressusNative
Ceanothus impressus var. impressusNative
Ceanothus impressus var. nipomensisNative
Ceanothus incanusCOAST WHITETHORNNative
Ceanothus insularis
(Under Ceanothus megacarpus var. insularis)
Synonym
Ceanothus integerrimusDEER BRUSHNative
Ceanothus integerrimus var. californicus
(Under Ceanothus integerrimus var. macrothyrsus)
Synonym
Ceanothus integerrimus var. integerrimusNative
Ceanothus integerrimus var. macrothyrsusNative
Ceanothus integerrimus var. peduncularis
(Under Ceanothus integerrimus var. macrothyrsus)
Synonym
Ceanothus integerrimus var. puberulus
(Under Ceanothus integerrimus var. macrothyrsus)
Synonym
Ceanothus jepsoniiMUSK BRUSHNative
Ceanothus jepsonii var. albiflorus
(Under Ceanothus jepsonii)
Synonym
Ceanothus jepsonii var. jepsonii
(Under Ceanothus jepsonii)
Synonym
Ceanothus lemmoniiNative
Ceanothus leucodermisCHAPARRAL WHITETHORNNative
Ceanothus maritimusMARITIME CEANOTHUSNative
Ceanothus masoniiMASON'S CEANOTHUSNative
Ceanothus megacarpusNative
Ceanothus megacarpus var. insularisISLAND CEANOTHUSNative
Ceanothus megacarpus var. megacarpusBIGPOD CEANOTHUSNative
Ceanothus megacarpus var. pendulus
(Under Ceanothus megacarpus var. megacarpus)
Synonym
Ceanothus oliganthusNative
Ceanothus oliganthus var. oliganthusNative
Ceanothus oliganthus var. orcuttiiNative
Ceanothus oliganthus var. sorediatusJIM BRUSHNative
Ceanothus ophiochilusVAIL LAKE CEANOTHUSNative
Ceanothus otayensisOTAY MOUNTAIN CEANOTHUSNative
Ceanothus palmeriPALMER CEANOTHUSNative
Ceanothus papillosusWARTLEAF CEANOTHUSNative
Ceanothus papillosus var. roweanus
(Under Ceanothus papillosus)
Mentioned in
a note
Ceanothus parryiNative
Ceanothus parvifoliusNative
Ceanothus pauciflorusMOJAVE CEANOTHUSNative
Ceanothus perplexansNative
Ceanothus pinetorumKERN CEANOTHUSNative
Ceanothus prostratusNative
Ceanothus prostratus var. laxus
(Under Ceanothus prostratus var. prostratus)
Synonym
Ceanothus prostratus var. occidentalisNative
Ceanothus prostratus var. profugus
(Under Ceanothus pumilus)
Synonym
Ceanothus prostratus var. prostratusMAHALA MATNative
Ceanothus pumilusSISKIYOU MATNative
Ceanothus purpureusHOLLY-LEAVED CEANOTHUSNative
Ceanothus ramulosus var. fascicularis
(Under Ceanothus cuneatus var. fascicularis)
Synonym
Ceanothus rigidusNative
Ceanothus rigidus var. albus
(Under Ceanothus rigidus)
Mentioned in
a note
Ceanothus roderickiiPINE HILL CEANOTHUSNative
Ceanothus sanguineusREDSTEM CEANOTHUSNative
Ceanothus sonomensisSONOMA CEANOTHUSNative
Ceanothus sorediatus
(Under Ceanothus oliganthus var. sorediatus)
Synonym
Ceanothus spinosusGREENBARK CEANOTHUSNative
Ceanothus thyrsiflorusNative
Ceanothus thyrsiflorus var. chandleri
(Under Ceanothus thyrsiflorus var. thyrsiflorus)
Synonym
Ceanothus thyrsiflorus var. griseusCARMEL CEANOTHUSNative
Ceanothus thyrsiflorus var. repens
(Under Ceanothus thyrsiflorus var. thyrsiflorus)
Synonym
Ceanothus thyrsiflorus var. thyrsiflorusBLUE BLOSSOMNative
Ceanothus tomentosusNative
Ceanothus tomentosus var. olivaceus
(Under Ceanothus tomentosus)
Synonym
Ceanothus tomentosus var. tomentosus
(Under Ceanothus tomentosus)
Synonym
Ceanothus velutinusNative
Ceanothus velutinus var. hookeri
(Under Ceanothus velutinus)
Synonym
Ceanothus velutinus var. laevigatus
(Under Ceanothus velutinus)
Synonym
Ceanothus velutinus var. velutinus
(Under Ceanothus velutinus)
Synonym
Ceanothus verrucosusWART-STEMMED CEANOTHUSNative
Ceanothus vestitus
(Under Ceanothus pauciflorus)
Synonym
Celastraceae
  ↳  Key to Celastraceae
STAFF-TREE FAMILY
Celtis
  ↳  Key to Celtis
HACKBERRY
Celtis australisNETTLE-TREENaturalized
Celtis reticulataNETLEAF HACKBERRYNative
Celtis sinensisCHINESE HACKBERRYNaturalized
Cenchrus
  ↳  Key to Cenchrus
SANDBUR
Cenchrus ciliaris
(Under Pennisetum ciliare)
Synonym
Cenchrus ciliaris
(Under Cenchrus)
Mentioned in
a note
Cenchrus echinatusSOUTHERN SANDBURNaturalized
Cenchrus incertusCOASTAL SANDBUR, COMMON SANDBURNaturalized
Cenchrus longispinusMAT SANDBURNaturalized
Cenchrus pauciflorus
(Under Cenchrus incertus)
Synonym
Cenchrus spinifex
(Under Cenchrus incertus)
Synonym
Centaurea
  ↳  Key to Centaurea
KNAPWEED, STAR-THISTLE
Centaurea ×moncktonii C.E. Britton
(Under Centaurea jacea subsp. pratensis)
Synonym
Centaurea ×pouzinii DC.
(Under Centaurea pouzinii)
Synonym
Centaurea ×pratensis Thuill., illeg.
(Under Centaurea jacea subsp. pratensis)
Synonym
Centaurea aspera
(Under Centaurea pouzinii)
Mentioned in
a note
Centaurea benedictaBLESSED THISTLENaturalized
Centaurea calcitrapaPURPLE STAR-THISTLENaturalized
Centaurea cinerariaDUSTY MILLERNaturalized
Centaurea cyanusBACHELOR'S BUTTON, CORNFLOWERNaturalized
Centaurea diffusaDIFFUSE KNAPWEEDNaturalized
Centaurea dilutaNORTH AFRICAN KNAPWEEDNaturalized
Centaurea ibericaIBERIAN STAR-THISTLENaturalized
Centaurea jaceaNaturalized
Centaurea jacea subsp. jaceaBROWN KNAPWEEDNaturalized
Centaurea jacea subsp. nigraBLACK KNAPWEEDNaturalized
Centaurea jacea subsp. pratensisNaturalized
Centaurea maculosa
(Under Centaurea stoebe subsp. micranthos)
Synonym
Centaurea melitensisMALTESE STAR-THISTLE; Naturalized
Centaurea muricata
(Under Volutaria muricata)
Synonym
Centaurea nigra
(Under Centaurea jacea subsp. nigra)
Synonym
Centaurea nigrescens
(Under Centaurea)
Mentioned in
a note
Centaurea pouziniiPOUZIN'S STAR-THISTLENaturalized
Centaurea repens
(Under Acroptilon repens)
Synonym
Centaurea solstitialisYELLOW STAR-THISTLENaturalized
Centaurea squarrosa
(Under Centaurea virgata subsp. squarrosa)
Synonym
Centaurea stoebe
(Under Centaurea diffusa)
Mentioned in
a note
Centaurea stoebe subsp. micranthosSPOTTED KNAPWEEDNaturalized
Centaurea sulphureaSICILIAN STAR-THISTLENaturalized
Centaurea virgata subsp. squarrosaNaturalized
Centaurium
  ↳  Key to Centaurium
CENTAURY
Centaurium calycosum
(Under Zeltnera)
Mentioned in
a note
Centaurium curvistamineum
(Under Zeltnera muehlenbergii)
Synonym
Centaurium davyi
(Under Zeltnera davyi)
Synonym
Centaurium erythraeaEUROPEAN CENTAURYNaturalized
Centaurium exaltatum
(Under Zeltnera exaltata)
Synonym
Centaurium exaltatum
(Under Zeltnera namophila)
Synonym
Centaurium exaltatum var. davyi
(Under Zeltnera davyi)
Synonym
Centaurium floribundum
(Under Centaurium tenuiflorum)
Synonym
Centaurium floribundum
(Under Zeltnera muehlenbergii)
Synonym
Centaurium muehlenbergii
(Under Centaurium tenuiflorum)
Synonym
Centaurium muehlenbergii
(Under Zeltnera davyi)
Synonym
Centaurium muehlenbergii
(Under Zeltnera muehlenbergii)
Synonym
Centaurium namophilum
(Under Zeltnera namophila)
Synonym
Centaurium namophilum var. nevadense
(Under Zeltnera namophila)
Mentioned in
a note
Centaurium pulchellumLESSER CENTAURYWaif
Centaurium tenuiflorumSLENDER CENTAURYNaturalized
Centaurium trichanthum
(Under Zeltnera trichantha)
Synonym
Centaurium venustum
(Under Zeltnera venusta)
Synonym
Centaurium venustum subsp. abramsii
(Under Zeltnera venusta)
Synonym
Centranthus
Centranthus ruberRED VALERIANNaturalized
Centromadia
  ↳  Key to Centromadia
SPIKEWEED
Centromadia fitchiiNative
Centromadia parryiNative
Centromadia parryi subsp. australisSOUTHERN TARPLANTNative
Centromadia parryi subsp. congdoniiCONGDON'S TARPLANTNative
Centromadia parryi subsp. parryiPAPPOSE TARPLANTNative
Centromadia parryi subsp. rudisPARRY'S ROUGH TARPLANTNative
Centromadia pungensNative
Centromadia pungens subsp. laevisSMOOTH TARPLANTNative
Centromadia pungens subsp. maritima
(Under Centromadia pungens subsp. pungens)
Synonym
Centromadia pungens subsp. pungensCOMMON SPIKEWEEDNative
Centromadia pungens subsp. septentrionalis
(Under Centromadia pungens subsp. pungens)
Synonym
Centrostegia
Centrostegia insignis
(Under Aristocapsa insignis)
Synonym
Centrostegia leptoceras
(Under Dodecahema leptoceras)
Synonym
Centrostegia thurberiRED TRIANGLESNative
Centrostegia thurberi var. macrotheca
(Under Centrostegia thurberi)
Synonym
Centrostegia vortriedei
(Under Systenotheca vortriedei)
Synonym
Centunculus minimus
(Under Lysimachia minima)
Synonym
Cephalanthera
Cephalanthera austiniaePHANTOM ORCHIDNative
CephalanthusBUTTON BUSH
Cephalanthus occidentalisCALIFORNIA BUTTON WILLOWNative
Cephalanthus occidentalis var. californicus
(Under Cephalanthus occidentalis)
Mentioned in
a note
Cephalophora decurrens
(Under Helenium puberulum)
Synonym
Cerastium
  ↳  Key to Cerastium
MOUSE-EAR CHICKWEED
Cerastium arvense subsp. maximum
(Under Cerastium viride)
Synonym
Cerastium arvense subsp. strictumFIELD MOUSE-EAR CHICKWEEDNative
Cerastium arvense var. maximum
(Under Cerastium viride)
Synonym
Cerastium arvense var. strictum
(Under Cerastium arvense subsp. strictum)
Synonym
Cerastium beeringianumBERING MOUSE-EAR CHICKWEEDNative
Cerastium beeringianum subsp. earlei
(Under Cerastium beeringianum)
Synonym
Cerastium beeringianum var. capillare
(Under Cerastium beeringianum)
Synonym
Cerastium dichotomumFORKED MOUSE-EAR CHICKWEEDNaturalized
Cerastium diffusumDARK GREEN MOUSE-EAR CHICKWEEDWaif
Cerastium fontanum subsp. triviale
(Under Cerastium fontanum subsp. vulgare)
Synonym
Cerastium fontanum subsp. vulgareCOMMON MOUSE-EAR CHICKWEEDNaturalized
Cerastium glomeratumSTICKY MOUSE-EAR CHICKWEEDNaturalized
Cerastium tetrandrum
(Under Cerastium diffusum)
Synonym
Cerastium virideWESTERN FIELD MOUSE-EAR CHICKWEEDNative
Ceratocephala testiculata
(Under Ranunculus testiculatus)
Synonym
Ceratocephalus testiculatus
(Under Ranunculus testiculatus)
Synonym
Ceratoides lanata
(Under Krascheninnikovia lanata)
Synonym
Ceratonia siliqua
(Under Fabaceae (Leguminosae))
Mentioned in
a note
CeratophyllaceaeHORNWORT FAMILY
CeratophyllumHORNWORT
Ceratophyllum apiculatum
(Under Ceratophyllum demersum)
Synonym
Ceratophyllum demersumNative
Cercidium floridum
(Under Parkinsonia florida)
Synonym
Cercidium floridum subsp. floridum
(Under Parkinsonia florida)
Synonym
Cercidium floridum subsp. peninsulare
(Under Parkinsonia florida)
Mentioned in
a note
Cercidium microphyllum
(Under Parkinsonia microphylla)
Synonym
CercisREDBUD
Cercis canadensis var. orbiculata
(Under Cercis occidentalis)
Synonym
Cercis occidentalisWESTERN REDBUDNative
Cercis orbiculata
(Under Cercis occidentalis)
Synonym
Cercocarpus
  ↳  Key to Cercocarpus
MOUNTAIN-MAHOGANY
Cercocarpus betuloidesNative
Cercocarpus betuloides subsp. blancheae
(Under Cercocarpus betuloides var. blancheae)
Synonym
Cercocarpus betuloides var. betuloidesBIRCH-LEAF MOUNTAIN-MAHOGANYNative
Cercocarpus betuloides var. blancheaeISLAND MOUNTAIN-MAHOGANYNative
Cercocarpus betuloides var. macrourusNative
Cercocarpus betuloides var. traskiae
(Under Cercocarpus traskiae)
Synonym
Cercocarpus intricatus
(Under Cercocarpus ledifolius var. intricatus)
Synonym
Cercocarpus ledifoliusCURL-LEAF MOUNTAIN-MAHOGANYNative
Cercocarpus ledifolius var. intercedens
(Under Cercocarpus ledifolius var. intermontanus)
Mentioned in
a note
Cercocarpus ledifolius var. intermontanusNative
Cercocarpus ledifolius var. intricatusNative
Cercocarpus ledifolius var. ledifoliusNative
Cercocarpus macrourus
(Under Cercocarpus betuloides var. macrourus)
Synonym
Cercocarpus minutiflorusNative
Cercocarpus montanus var. minutiflorus
(Under Cercocarpus minutiflorus)
Synonym
Cercocarpus traskiaeCATALINA ISLAND MOUNTAIN-MAHOGANYNative
Cereus emoryi
(Under Bergerocactus emoryi)
Synonym
Cereus giganteus
(Under Carnegiea gigantea)
Synonym
Cestrum
  ↳  Key to Cestrum
Cestrum elegansWaif
Cestrum fasciculatum
(Under Cestrum elegans)
Synonym
Cestrum nocturnumNaturalized
Cestrum parquiWaif
Chaenactis
  ↳  Key to Chaenactis
PINCUSHION, DUSTY-MAIDENS
Chaenactis alpigenaSHARSMITH PINCUSHIONNative
Chaenactis artemisiifoliaWHITE PINCUSHIONNative
Chaenactis carphocliniaPEBBLE PINCUSHIONNative
Chaenactis carphoclinia var. carphocliniaNative
Chaenactis carphoclinia var. peirsoniiPEIRSON'S PINCUSHIONNative
Chaenactis douglasiiNative
Chaenactis douglasii var. alpinaALPINE DUSTY-MAIDENSNative
Chaenactis douglasii var. douglasiiFALSE YARROW; Native
Chaenactis douglasii var. rubricaulis
(Under Chaenactis douglasii var. douglasii)
Synonym
Chaenactis fremontiiFREMONT PINCUSHIONNative
Chaenactis gillespiei
(Under Chaenactis stevioides)
Synonym
Chaenactis glabriusculaYELLOW PINCUSHIONNative
Chaenactis glabriuscula var. denudata
(Under Chaenactis glabriuscula var. lanosa)
Mentioned in
a note
Chaenactis glabriuscula var. glabriusculaNative
Chaenactis glabriuscula var. heterocarphaINNER COAST RANGE PINCUSHIONNative
Chaenactis glabriuscula var. lanosaSAND BUTTONSNative
Chaenactis glabriuscula var. megacephalaNative
Chaenactis glabriuscula var. orcuttianaORCUTT'S PINCUSHIONNative
Chaenactis macranthaMOJAVE PINCUSHIONNative
Chaenactis nevadensisSIERRA PINCUSHIONNative
Chaenactis parishiiPARISH'S CHAENACTISNative
Chaenactis peirsonii
(Under Chaenactis carphoclinia var. peirsonii)
Synonym
Chaenactis pumila
(Under Chaenactis douglasii var. douglasii)
Synonym
Chaenactis rubricaulis
(Under Chaenactis douglasii var. douglasii)
Synonym
Chaenactis santolinoidesSANTOLINA PINCUSHIONNative
Chaenactis stevioidesDESERT PINCUSHIONNative
Chaenactis stevioides var. thornberi
(Under Chaenactis stevioides)
Synonym
Chaenactis suffrutescensSHASTA PINCUSHION; Native
Chaenactis tanacetifolia
(Under Chaenactis glabriuscula var. heterocarpha)
Synonym
Chaenactis tenuifolia var. orcuttiana
(Under Chaenactis glabriuscula var. orcuttiana)
Synonym
Chaenactis xantianaFLESHY PINCUSHIONNative
Chaetadelpha
Chaetadelpha wheeleriWHEELER'S DUNE-BROOMNative
Chaetopappa
Chaetopappa alsinoides
(Under Pentachaeta alsinoides)
Synonym
Chaetopappa bellidiflora
(Under Pentachaeta bellidiflora)
Synonym
Chaetopappa ericoidesROSE-HEATHNative
Chaetopappa fragilis
(Under Pentachaeta fragilis)
Synonym
Chaetopappa lyonii
(Under Pentachaeta lyonii)
Synonym
Chamaebatia
  ↳  Key to Chamaebatia
Chamaebatia australisSOUTHERN MOUNTAIN MISERYNative
Chamaebatia foliolosaMOUNTAIN MISERYNative
Chamaebatiaria
Chamaebatiaria millefoliumNative
ChamaecyparisFALSE CYPRESS
Chamaecyparis lawsonianaPORT ORFORD CEDAR, LAWSON CYPRESSNative
Chamaecyparis nootkatensis
(Under Callitropsis nootkatensis)
Synonym
Chamaecytisus proliferus
(Under Cytisus proliferus)
Synonym
Chamaemelum
Chamaemelum arvense
(Under Anthemis arvensis)
Synonym
Chamaemelum cotula
(Under Anthemis cotula)
Synonym
Chamaemelum foetidum
(Under Anthemis cotula)
Synonym
Chamaemelum fuscatumCHAMOMILENaturalized
Chamaemelum nobile
(Under Chamaemelum)
Mentioned in
a note
Chamaesaracha
  ↳  Key to Chamaesaracha
Chamaesaracha coronopusNative
Chamaesaracha nanaNative
Chamaesyce abramsiana
(Under Euphorbia abramsiana)
Synonym
Chamaesyce albomarginata
(Under Euphorbia albomarginata)
Synonym
Chamaesyce arizonica
(Under Euphorbia arizonica)
Synonym
Chamaesyce fendleri
(Under Euphorbia fendleri)
Synonym
Chamaesyce glyptosperma
(Under Euphorbia glyptosperma)
Synonym
Chamaesyce hooveri
(Under Euphorbia hooveri)
Synonym
Chamaesyce maculata
(Under Euphorbia maculata)
Synonym
Chamaesyce melanadenia
(Under Euphorbia melanadenia)
Synonym
Chamaesyce micromera
(Under Euphorbia micromera)
Synonym
Chamaesyce nutans
(Under Euphorbia nutans)
Synonym
Chamaesyce ocellata
(Under Euphorbia ocellata)
Synonym
Chamaesyce ocellata subsp. arenicola
(Under Euphorbia ocellata subsp. arenicola)
Synonym
Chamaesyce ocellata subsp. ocellata
(Under Euphorbia ocellata subsp. ocellata)
Synonym
Chamaesyce ocellata subsp. rattanii
(Under Euphorbia ocellata subsp. rattanii)
Synonym
Chamaesyce parishii
(Under Euphorbia parishii)
Synonym
Chamaesyce parryi
(Under Euphorbia parryi)
Synonym
Chamaesyce pediculifera
(Under Euphorbia pediculifera)
Synonym
Chamaesyce platysperma
(Under Euphorbia platysperma)
Synonym
Chamaesyce polycarpa
(Under Euphorbia polycarpa)
Synonym
Chamaesyce prostrata
(Under Euphorbia prostrata)
Synonym
Chamaesyce revoluta
(Under Euphorbia revoluta)
Synonym
Chamaesyce serpens
(Under Euphorbia serpens)
Synonym
Chamaesyce serpyllifolia
(Under Euphorbia serpyllifolia)
Synonym
Chamaesyce serpyllifolia subsp. hirtula
(Under Euphorbia serpyllifolia subsp. hirtula)
Synonym
Chamaesyce serpyllifolia subsp. serpyllifolia
(Under Euphorbia serpyllifolia subsp. serpyllifolia)
Synonym
Chamaesyce setiloba
(Under Euphorbia setiloba)
Synonym
Chamaesyce vallis-mortae
(Under Euphorbia vallis-mortae)
Synonym
Chamelaucium
Chamelaucium uncinatumWAXFLOWERWaif
Chamerion
  ↳  Key to Chamerion
Chamerion angustifolium subsp. angustifolium
(Under Chamerion angustifolium subsp. circumvagum)
Mentioned in
a note
Chamerion angustifolium subsp. circumvagumFIREWEEDNative
Chamerion latifoliumNative
Chamomilla occidentalis
(Under Matricaria occidentalis)
Synonym
Chamomilla suaveolens
(Under Matricaria discoidea)
Synonym
Chasmanthe
Chasmanthe aethiopica
(Under Chasmanthe floribunda)
Mentioned in
a note
Chasmanthe floribundaNaturalized
Cheilanthes carlotta-halliae
(Under Aspidotis carlotta-halliae)
Synonym
Cheilanthes clevelandii
(Under Myriopteris clevelandii)
Synonym
Cheilanthes cochisensis
(Under Astrolepis cochisensis)
Synonym
Cheilanthes cooperae
(Under Myriopteris cooperae)
Synonym
Cheilanthes covillei
(Under Myriopteris covillei)
Synonym
Cheilanthes feei
(Under Myriopteris gracilis)
Synonym
Cheilanthes gracillima
(Under Myriopteris gracillima)
Synonym
Cheilanthes intertexta
(Under Myriopteris intertexta)
Synonym
Cheilanthes jonesii
(Under Argyrochosma jonesii)
Synonym
Cheilanthes limitanea var. limitanea
(Under Argyrochosma limitanea subsp. limitanea)
Synonym
Cheilanthes newberryi
(Under Myriopteris newberryi)
Synonym
Cheilanthes parryi
(Under Myriopteris parryi)
Synonym
Cheilanthes sinuata var. cochisensis
(Under Astrolepis cochisensis)
Synonym
Cheilanthes viscida
(Under Myriopteris viscida)
Synonym
Cheilanthes wootonii
(Under Myriopteris wootonii)
Synonym
Chelone nemorosa
(Under Nothochelone nemorosa)
Synonym
Chenopodiaceae
  ↳  Key to Chenopodiaceae
GOOSEFOOT FAMILY
Chenopodium
  ↳  Key to Chenopodium
PIGWEED, GOOSEFOOT
Chenopodium albumLAMB'S QUARTERSNaturalized
Chenopodium album var. missouriense
(Under Chenopodium missouriense)
Synonym
Chenopodium ambrosioides
(Under Dysphania ambrosioides)
Synonym
Chenopodium ambrosioides var. anthelminticum
(Under Dysphania anthelmintica)
Synonym
Chenopodium ambrosioides var. suffruticosum
(Under Dysphania ambrosioides)
Synonym
Chenopodium ambrosioides var. vagans
(Under Dysphania chilensis)
Synonym
Chenopodium anthelminticum
(Under Dysphania anthelmintica)
Synonym
Chenopodium atrovirensNative
Chenopodium berlandieriPITSEED GOOSEFOOTNative
Chenopodium berlandieri var. sinuatumNative
Chenopodium berlandieri var. zschackeiNative
Chenopodium botrys
(Under Dysphania botrys)
Synonym
Chenopodium californicumCALIFORNIA GOOSEFOOTNative
Chenopodium capitatumSTRAWBERRY-BLITENative
Chenopodium capitatum var. capitatumNaturalized
Chenopodium capitatum var. parvicapitatumNative
Chenopodium carnosulum var. patagonicum
(Under Chenopodium littoreum)
Synonym
Chenopodium chenopodioidesNaturalized
Chenopodium desiccatumNative
Chenopodium desiccatum var. leptophylloides
(Under Chenopodium pratericola)
Synonym
Chenopodium foliosumNaturalized
Chenopodium fremontiiNative
Chenopodium fremontii var. incanum
(Under Chenopodium incanum var. occidentale)
Synonym
Chenopodium gigantospermum
(Under Chenopodium simplex)
Synonym
Chenopodium glaucum var. glaucum
(Under Chenopodium glaucum var. salinum)
Mentioned in
a note
Chenopodium glaucum var. salinumNative
Chenopodium hiansNative
Chenopodium incanum
(Under Chenopodium fremontii)
Mentioned in
a note
Chenopodium incanum var. occidentaleNative
Chenopodium incognitum
(Under Chenopodium hians)
Synonym
Chenopodium leptophyllumNative
Chenopodium littoreumNative
Chenopodium macrospermumNaturalized
Chenopodium macrospermum var. farinosum
(Under Chenopodium macrospermum)
Synonym
Chenopodium macrospermum var. halophilum
(Under Chenopodium macrospermum)
Synonym
Chenopodium missourienseNaturalized
Chenopodium multifidum
(Under Dysphania multifida)
Synonym
Chenopodium muraleNaturalized
Chenopodium nevadenseNative
Chenopodium overi
(Under Chenopodium capitatum var. parvicapitatum)
Synonym
Chenopodium overi
(Under Chenopodium foliosum)
Synonym
Chenopodium polyspermum var. acutifoliumWaif
Chenopodium pratericolaNative
Chenopodium pumilio
(Under Dysphania pumilio)
Synonym
Chenopodium quinoa
(Under Chenopodiaceae)
Mentioned in
a note
Chenopodium rubrumRED PIGWEEDNative
Chenopodium rubrum var. humileNative
Chenopodium rubrum var. rubrumNaturalized
Chenopodium salinum
(Under Chenopodium glaucum var. salinum)
Synonym
Chenopodium simplexLARGE-SEEDED GOOSEFOOTNative
Chenopodium spinosum
(Under Grayia spinosa)
Synonym
Chenopodium strictum
(Under Chenopodium album)
Mentioned in
a note
Chenopodium strictum var. glaucophyllumNaturalized
Chenopodium subspicatum
(Under Atriplex dioica)
Synonym
Chenopodium vulvariaNaturalized
Chenopodium watsoniiNative
Chilianthus oleaceus
(Under Buddleja saligna)
Synonym
ChilopsisDESERT-WILLOW
Chilopsis linearis subsp. arcuataNative
Chimaphila
  ↳  Key to Chimaphila
PRINCE'S PINE, PIPSISSEWA
Chimaphila menziesiiLITTLE PRINCE'S PINENative
Chimaphila umbellataPRINCE'S PINENative
Chimaphila umbellata var. occidentalis
(Under Chimaphila umbellata)
Synonym
ChloracanthaSPINY ASTER
Chloracantha spinosa var. spinosaNative
Chloris
  ↳  Key to Chloris
Chloris gayanaRHODES GRASSNaturalized
Chloris truncataBLACK WINDMILL GRASSNaturalized
Chloris verticillataWINDMILL GRASSNaturalized
Chloris virgataFEATHER FINGER GRASSNaturalized
Chlorogalum
  ↳  Key to Chlorogalum
SOAP PLANT, AMOLE
Chlorogalum angustifoliumNative
Chlorogalum grandiflorumRED HILLS SOAPROOTNative
Chlorogalum parviflorumNative
Chlorogalum pomeridianumNative
Chlorogalum pomeridianum var. divaricatumNative
Chlorogalum pomeridianum var. minusDWARF SOAPROOTNative
Chlorogalum pomeridianum var. pomeridianumNative
Chlorogalum purpureumNative
Chlorogalum purpureum var. purpureumSANTA LUCIA PURPLE AMOLENative
Chlorogalum purpureum var. reductumCAMATTA CANYON AMOLENative
Chloropyron
  ↳  Key to Chloropyron
SALTY BIRD'S-BEAK
Chloropyron maritimumNative
Chloropyron maritimum subsp. canescensNative
Chloropyron maritimum subsp. maritimumSALT MARSH BIRD'S-BEAKNative
Chloropyron maritimum subsp. palustrePOINT REYES SALTY BIRD'S-BEAKNative
Chloropyron molleNative
Chloropyron molle subsp. hispidumHISPID SALTY BIRD'S-BEAKNative
Chloropyron molle subsp. molleSOFT SALTY BIRD'S-BEAKNative
Chloropyron palmatumPALMATE SALTY BIRD'S-BEAKNative
Chloropyron tecopenseTECOPA SALTY BIRD'S-BEAKNative
Chondrilla
Chondrilla junceaSKELETON WEEDNaturalized
Chorisiva nevadensis
(Under Euphrosyne nevadensis)
Synonym
Chorispora
Chorispora tenellaNaturalized
Chorizanthe
  ↳  Key to Chorizanthe
SPINEFLOWER
Chorizanthe andersonii
(Under Chorizanthe diffusa)
Synonym
Chorizanthe angustifoliaNARROW-LEAF SPINEFLOWERNative
Chorizanthe angustifolia var. eastwoodiae
(Under Chorizanthe angustifolia)
Synonym
Chorizanthe bilobaNative
Chorizanthe biloba var. bilobaTWO-LOBE SPINEFLOWERNative
Chorizanthe biloba var. immemoraHERNANDEZ SPINEFLOWERNative
Chorizanthe blakleyiBLAKLEY'S SPINEFLOWERNative
Chorizanthe brevicornuNative
Chorizanthe brevicornu var. brevicornuBRITTLE SPINEFLOWERNative
Chorizanthe brevicornu var. spathulataGREAT BASIN BRITTLE SPINEFLOWERNative
Chorizanthe breweriBREWER'S SPINEFLOWERNative
Chorizanthe californica
(Under Mucronea californica)
Synonym
Chorizanthe californica var. suksdorfii
(Under Mucronea californica)
Synonym
Chorizanthe chaetophora
(Under Chorizanthe procumbens)
Synonym
Chorizanthe chrysacantha
(Under Chorizanthe staticoides)
Synonym
Chorizanthe chrysacantha var. compacta
(Under Chorizanthe staticoides)
Synonym
Chorizanthe clevelandiiCLEVELAND'S SPINEFLOWERNative
Chorizanthe coriacea
(Under Lastarriaea coriacea)
Synonym
Chorizanthe corrugataWRINKLED SPINEFLOWERNative
Chorizanthe cuspidataNative
Chorizanthe cuspidata var. cuspidataSAN FRANCISCO BAY SPINEFLOWERNative
Chorizanthe cuspidata var. marginata
(Under Chorizanthe cuspidata var. cuspidata)
Synonym
Chorizanthe cuspidata var. villosaWOOLLY-HEADED SPINEFLOWERNative
Chorizanthe diffusaDIFFUSE SPINEFLOWERNative
Chorizanthe discolor
(Under Chorizanthe staticoides)
Synonym
Chorizanthe douglasiiDOUGLAS' SPINEFLOWERNative
Chorizanthe douglasii var. albens
(Under Chorizanthe pungens var. pungens)
Synonym
Chorizanthe douglasii var. hartwegii
(Under Chorizanthe robusta var. hartwegii)
Synonym
Chorizanthe fernandina
(Under Chorizanthe parryi var. fernandina)
Synonym
Chorizanthe fimbriataNative
Chorizanthe fimbriata var. fimbriataFRINGED SPINEFLOWERNative
Chorizanthe fimbriata var. laciniataLACINIATE SPINEFLOWERNative
Chorizanthe floccosa
(Under Hollisteria lanata)
Synonym
Chorizanthe howelliiHOWELL'S SPINEFLOWERNative
Chorizanthe insignis
(Under Aristocapsa insignis)
Synonym
Chorizanthe insularis
(Under Chorizanthe wheeleri)
Synonym
Chorizanthe jonesiana
(Under Chorizanthe procumbens)
Synonym
Chorizanthe laciniata
(Under Chorizanthe fimbriata var. laciniata)
Synonym
Chorizanthe lastarriaea var. californica
(Under Lastarriaea coriacea)
Synonym
Chorizanthe leptoceras
(Under Dodecahema leptoceras)
Synonym
Chorizanthe leptothecaPENINSULAR SPINEFLOWERNative
Chorizanthe membranaceaPINK SPINEFLOWERNative
Chorizanthe minutifloraFORT ORD SPINEFLOWERNative
Chorizanthe nortonii
(Under Chorizanthe douglasii)
Synonym
Chorizanthe nudicaulis
(Under Chorizanthe procumbens)
Synonym
Chorizanthe obovataSPOON-SEPAL SPINEFLOWERNative
Chorizanthe obovata f. prostrata
(Under Chorizanthe obovata)
Synonym
Chorizanthe orcuttianaORCUTT'S SPINEFLOWERNative
Chorizanthe palmeriPALMER'S SPINEFLOWERNative
Chorizanthe palmeri var. biloba
(Under Chorizanthe biloba var. biloba)
Synonym
Chorizanthe palmeri var. ventricosa
(Under Chorizanthe ventricosa)
Synonym
Chorizanthe parryiNative
Chorizanthe parryi var. fernandinaSAN FERNANDO VALLEY SPINEFLOWERNative
Chorizanthe parryi var. parryiPARRY'S SPINEFLOWERNative
Chorizanthe perfoliata
(Under Mucronea perfoliata)
Synonym
Chorizanthe polygonoidesNative
Chorizanthe polygonoides subsp. longispina
(Under Chorizanthe polygonoides var. longispina)
Synonym
Chorizanthe polygonoides var. longispinaLONG-SPINED SPINEFLOWERNative
Chorizanthe polygonoides var. polygonoidesKNOTWEED SPINEFLOWERNative
Chorizanthe procumbensPROSTRATE SPINEFLOWERNative
Chorizanthe procumbens var. albiflora
(Under Chorizanthe procumbens)
Synonym
Chorizanthe procumbens var. mexicana
(Under Chorizanthe procumbens)
Synonym
Chorizanthe pungensNative
Chorizanthe pungens var. cuspidata
(Under Chorizanthe cuspidata var. cuspidata)
Synonym
Chorizanthe pungens var. diffusa
(Under Chorizanthe diffusa)
Synonym
Chorizanthe pungens var. hartwegianaBEN LOMOND SPINEFLOWERNative
Chorizanthe pungens var. hartwegii
(Under Chorizanthe pungens var. hartwegiana)
Synonym
Chorizanthe pungens var. hartwegii
(Under Chorizanthe robusta var. hartwegii)
Synonym
Chorizanthe pungens var. pungensMONTEREY SPINEFLOWERNative
Chorizanthe pungens var. robusta
(Under Chorizanthe robusta var. robusta)
Synonym
Chorizanthe rectispinaSTRAIGHT-AWNED SPINEFLOWERNative
Chorizanthe rigidaDEVIL'S SPINEFLOWERNative
Chorizanthe robustaNative
Chorizanthe robusta var. hartwegiiSCOTTS VALLEY SPINEFLOWERNative
Chorizanthe robusta var. robustaROBUST SPINEFLOWERNative
Chorizanthe spathulata
(Under Chorizanthe brevicornu var. spathulata)
Synonym
Chorizanthe spinosaMOJAVE SPINEFLOWERNative
Chorizanthe staticoidesTURKISH RUGGINGNative
Chorizanthe staticoides f. bracteata
(Under Chorizanthe staticoides)
Synonym
Chorizanthe staticoides subsp. chrysacantha
(Under Chorizanthe staticoides)
Synonym
Chorizanthe staticoides var. brevispina
(Under Chorizanthe staticoides)
Synonym
Chorizanthe staticoides var. elata
(Under Chorizanthe staticoides)
Synonym
Chorizanthe staticoides var. latiloba
(Under Chorizanthe staticoides)
Synonym
Chorizanthe staticoides var. nudicaulis
(Under Chorizanthe procumbens)
Synonym
Chorizanthe stellulataSTARLITE SPINEFLOWERNative
Chorizanthe thurberi
(Under Centrostegia thurberi)
Synonym
Chorizanthe thurberi var. cryptantha
(Under Centrostegia thurberi)
Synonym
Chorizanthe thurberi var. macrotheca
(Under Centrostegia thurberi)
Synonym
Chorizanthe uncinata
(Under Chorizanthe procumbens)
Synonym
Chorizanthe uniaristataONE-AWN SPINEFLOWERNative
Chorizanthe validaSONOMA SPINEFLOWERNative
Chorizanthe ventricosaPOTBELLIED SPINEFLOWERNative
Chorizanthe villosa
(Under Chorizanthe cuspidata var. villosa)
Synonym
Chorizanthe vortriedei
(Under Systenotheca vortriedei)
Synonym
Chorizanthe watsoniiWATSON'S SPINEFLOWERNative
Chorizanthe wheeleriWHEELER'S SPINEFLOWERNative
Chorizanthe xantiNative
Chorizanthe xanti subsp. leucotheca
(Under Chorizanthe xanti var. leucotheca)
Synonym
Chorizanthe xanti var. leucothecaWHITE-BRACTED SPINEFLOWERNative
Chorizanthe xanti var. xantiPINYON SPINEFLOWERNative
Christella puberula
(Under Thelypteris puberula var. sonorensis)
Mentioned in
a note
Chrysamphora californica
(Under Darlingtonia californica)
Synonym
Chrysanthemoides
Chrysanthemoides monilifera subsp. moniliferaBITOU BUSHNaturalized
Chrysanthemum carinatum
(Under Asteraceae (Compositae))
Mentioned in
a note
Chrysanthemum coronarium
(Under Glebionis coronaria)
Synonym
Chrysanthemum foeniculaceum
(Under Argyranthemum foeniculaceum)
Synonym
Chrysanthemum leucanthemum
(Under Leucanthemum vulgare)
Synonym
Chrysanthemum maximum
(Under Leucanthemum maximum)
Synonym
Chrysanthemum parthenium
(Under Tanacetum parthenium)
Synonym
Chrysanthemum segetum
(Under Glebionis segetum)
Synonym
Chrysolepis
  ↳  Key to Chrysolepis
CHINQUAPIN
Chrysolepis chrysophyllaGIANT CHINQUAPINNative
Chrysolepis chrysophylla var. chrysophyllaNative
Chrysolepis chrysophylla var. minorNative
Chrysolepis sempervirensBUSH CHINQUAPINNative
Chrysopsis breweri
(Under Eucephalus breweri)
Synonym
ChrysospleniumGOLDEN SAXIFRAGE
Chrysosplenium glechomifoliumNative
Chrysothamnus
  ↳  Key to Chrysothamnus
RABBITBRUSH
Chrysothamnus albidus
(Under Ericameria albida)
Synonym
Chrysothamnus californicus
(Under Ericameria nauseosa var. speciosa)
Mentioned in
a note
Chrysothamnus depressusNative
Chrysothamnus gramineus
(Under Cuniculotinus gramineus)
Synonym
Chrysothamnus greeneiGREENE'S RABBITBRUSHNative
Chrysothamnus humilisNative
Chrysothamnus nauseosus
(Under Ericameria nauseosa)
Synonym
Chrysothamnus nauseosus subsp. albicaulis
(Under Ericameria nauseosa var. speciosa)
Synonym
Chrysothamnus nauseosus subsp. albicaulis
(Under Ericameria discoidea)
Mentioned in
a note
Chrysothamnus nauseosus subsp. bernardinus
(Under Ericameria nauseosa var. bernardina)
Synonym
Chrysothamnus nauseosus subsp. ceruminosus
(Under Ericameria nauseosa var. ceruminosa)
Synonym
Chrysothamnus nauseosus subsp. consimilis
(Under Ericameria nauseosa var. oreophila)
Synonym
Chrysothamnus nauseosus subsp. gnaphalodes
(Under Ericameria nauseosa var. hololeuca)
Synonym
Chrysothamnus nauseosus subsp. hololeucus
(Under Ericameria nauseosa var. hololeuca)
Synonym
Chrysothamnus nauseosus subsp. leiospermus
(Under Ericameria nauseosa var. leiosperma)
Synonym
Chrysothamnus nauseosus subsp. mohavensis
(Under Ericameria nauseosa var. mohavensis)
Synonym
Chrysothamnus nauseosus subsp. washoensis
(Under Ericameria nauseosa var. washoensis)
Synonym
Chrysothamnus nauseosus var. macrophyllus
(Under Ericameria nauseosa var. speciosa)
Mentioned in
a note
Chrysothamnus nauseosus var. viridulus
(Under Ericameria nauseosa var. oreophila)
Synonym
Chrysothamnus paniculatus
(Under Ericameria paniculata)
Synonym
Chrysothamnus parryi
(Under Ericameria parryi)
Synonym
Chrysothamnus parryi subsp. asper
(Under Ericameria parryi var. aspera)
Synonym
Chrysothamnus parryi subsp. bolanderi
(Under Ericameria discoidea)
Mentioned in
a note
Chrysothamnus parryi subsp. imulus
(Under Ericameria parryi var. imula)
Synonym
Chrysothamnus parryi subsp. latior
(Under Ericameria parryi var. latior)
Synonym
Chrysothamnus parryi subsp. monocephalus
(Under Ericameria parryi var. monocephala)
Synonym
Chrysothamnus parryi subsp. nevadensis
(Under Ericameria parryi var. nevadensis)
Synonym
Chrysothamnus parryi subsp. vulcanicus
(Under Ericameria parryi var. vulcanica)
Synonym
Chrysothamnus teretifolius
(Under Ericameria teretifolia)
Synonym
Chrysothamnus viscidiflorusYELLOW RABBITBRUSHNative
Chrysothamnus viscidiflorus subsp. axillarisNative
Chrysothamnus viscidiflorus subsp. humilis
(Under Chrysothamnus humilis)
Synonym
Chrysothamnus viscidiflorus subsp. lanceolatusNative
Chrysothamnus viscidiflorus subsp. latifolius
(Under Chrysothamnus viscidiflorus subsp. viscidiflorus)
Synonym
Chrysothamnus viscidiflorus subsp. puberulusNative
Chrysothamnus viscidiflorus subsp. pumilus
(Under Chrysothamnus viscidiflorus subsp. viscidiflorus)
Synonym
Chrysothamnus viscidiflorus subsp. stenophyllus
(Under Chrysothamnus viscidiflorus subsp. viscidiflorus)
Synonym
Chrysothamnus viscidiflorus subsp. viscidiflorusNative
Chylismia
  ↳  Key to Chylismia
Chylismia arenariaNative
Chylismia brevipesNative
Chylismia brevipes subsp. arizonicaNative
Chylismia brevipes subsp. brevipesNative
Chylismia brevipes subsp. pallidulaNative
Chylismia cardiophyllaNative
Chylismia cardiophylla subsp. cardiophyllaNative
Chylismia cardiophylla subsp. robustaNative
Chylismia claviformisNative
Chylismia claviformis subsp. aurantiacaNative
Chylismia claviformis subsp. claviformisNative
Chylismia claviformis subsp. cruciformisNative
Chylismia claviformis subsp. funereaNative
Chylismia claviformis subsp. integriorNative
Chylismia claviformis subsp. lancifoliaNative
Chylismia claviformis subsp. peeblesii
(Under Chylismia claviformis subsp. yumae)
Mentioned in
a note
Chylismia claviformis subsp. peirsoniiNative
Chylismia claviformis subsp. yumaeNative
Chylismia heterochromaSHOCKLEY'S EVENING-PRIMROSENative
Chylismia heterochroma
(Under Chylismia heterochroma)
Synonym
Chylismia lancifolia
(Under Chylismia claviformis subsp. lancifolia)
Synonym
Chylismia munziiNative
Chylismia walkeri subsp. tortilisNative
Chylismiella
Chylismiella pterospermaNative
Cicendia
Cicendia quadrangularisTIMWORTNative
CichoriumCHICORY
Cichorium endivia
(Under Cichorium)
Mentioned in
a note
Cichorium intybusNaturalized
Cicuta
  ↳  Key to Cicuta
WATER-HEMLOCK
Cicuta bolanderi
(Under Cicuta maculata var. bolanderi)
Synonym
Cicuta douglasiiNative
Cicuta maculataNative
Cicuta maculata var. angustifoliaNative
Cicuta maculata var. bolanderiBOLANDER'S WATER-HEMLOCKNative
Cicuta occidentalis
(Under Cicuta maculata var. angustifolia)
Synonym
Cicuta valida
(Under Cicuta maculata var. angustifolia)
Synonym
Cinna
  ↳  Key to Cinna
WOODREED
Cinna bolanderiBOLANDER'S WOODREEDNative
Cinna latifoliaDROOPING WOODREED, SLENDER WOODREEDNative
Cinnamomum
Cinnamomum camphoraCAMPHOR TREENaturalized
CircaeaENCHANTER'S NIGHTSHADE
Circaea alpina subsp. pacificaNative
Cirsium
  ↳  Key to Cirsium
THISTLE
Cirsium acanthodontum
(Under Cirsium remotifolium var. rivulare)
Synonym
Cirsium amblylepis
(Under Cirsium remotifolium var. odontolepis)
Synonym
Cirsium andersoniiNative
Cirsium andrewsiiFRANCISCAN THISTLENative
Cirsium arizonicumNative
Cirsium arizonicum var. arizonicumARIZONA THISTLENative
Cirsium arizonicum var. tenuisectumDESERT MOUNTAIN THISTLENative
Cirsium arvenseCANADA THISTLENaturalized
Cirsium brevistylumNative
Cirsium callilepis
(Under Cirsium remotifolium var. odontolepis)
Synonym
Cirsium callilepis var. pseudocarlinoides
(Under Cirsium remotifolium var. odontolepis)
Synonym
Cirsium canescensPRAIRIE THISTLENaturalized
Cirsium canovirens
(Under Cirsium cymosum var. canovirens)
Synonym
Cirsium canovirens
(Under Cirsium inamoenum var. inamoenum)
Synonym
Cirsium ciliolatumASHLAND THISTLENative
Cirsium coulteri
(Under Cirsium occidentale var. coulteri)
Synonym
Cirsium crassicauleSLOUGH THISTLENative
Cirsium cymosumNative
Cirsium cymosum var. canovirensGRAY-GREEN THISTLENative
Cirsium cymosum var. cymosumPEREGRINE THISTLENative
Cirsium douglasiiSWAMP THISTLENative
Cirsium douglasii var. breweriNative
Cirsium douglasii var. douglasiiNative
Cirsium fontinaleFOUNTAIN THISTLENative
Cirsium fontinale var. campylonMOUNT HAMILTON FOUNTAIN THISTLENative
Cirsium fontinale var. fontinaleCRYSTAL SPRINGS FOUNTAIN THISTLENative
Cirsium fontinale var. obispoenseSAN LUIS OBISPO FOUNTAIN THISTLENative
Cirsium hydrophilumNative
Cirsium hydrophilum var. hydrophilumSUISUN THISTLENative
Cirsium hydrophilum var. vaseyiMOUNT TAMALPAIS THISTLENative
Cirsium inamoenum var. inamoenumGREENE'S THISTLENative
Cirsium loncholepis
(Under Cirsium scariosum var. loncholepis)
Synonym
Cirsium mendocinum
(Under Cirsium andrewsii)
Synonym
Cirsium mohavenseMOJAVE THISTLENative
Cirsium neomexicanumDESERT THISTLENative
Cirsium nidulum
(Under Cirsium arizonicum var. tenuisectum)
Synonym
Cirsium occidentaleNative
Cirsium occidentale var. californicumCALIFORNIA THISTLENative
Cirsium occidentale var. candidissimumSNOWY THISTLENative
Cirsium occidentale var. compactumCOMPACT COBWEBBY THISTLENative
Cirsium occidentale var. coulteriCOULTER'S THISTLENative
Cirsium occidentale var. lucianumCUESTA RIDGE THISTLENative
Cirsium occidentale var. occidentaleCOBWEBBY THISTLENative
Cirsium occidentale var. venustumVENUS THISTLENative
Cirsium ochrocentrum var. ochrocentrumYELLOWSPINE THISTLENaturalized
Cirsium praeteriensLOST THISTLENative
Cirsium quercetorumBROWNIE THISTLENative
Cirsium quercetorum var. walkerianum
(Under Cirsium quercetorum)
Synonym
Cirsium quercetorum var. xerolepis
(Under Cirsium quercetorum)
Synonym
Cirsium remotifoliumNative
Cirsium remotifolium var. odontolepisPACIFIC FRINGED THISTLENative
Cirsium remotifolium var. remotifoliumREMOTE-LEAVED THISTLENative
Cirsium remotifolium var. rivulareKLAMATH THISTLENative
Cirsium rhothophilumSURF THISTLENative
Cirsium scariosumMEADOW THISTLENative
Cirsium scariosum var. americanumDINNERPLATE THISTLENative
Cirsium scariosum var. citrinumSOUTHERN MEADOW THISTLENative
Cirsium scariosum var. citrinum
(Under Cirsium scariosum var. loncholepis)
Synonym
Cirsium scariosum var. congdoniiROSETTE THISTLENative
Cirsium scariosum var. loncholepisLA GRACIOSA THISTLENative
Cirsium scariosum var. robustumSHASTA VALLEY THISTLENative
Cirsium scariosum var. scariosumELK THISTLENative
Cirsium subniveum
(Under Cirsium inamoenum var. inamoenum)
Synonym
Cirsium tioganum
(Under Cirsium scariosum var. congdonii)
Synonym
Cirsium undulatumWAVYLEAF THISTLENative
Cirsium undulatum
(Under Cirsium canescens)
Synonym
Cirsium undulatum var. ciliolatum
(Under Cirsium ciliolatum)
Mentioned in
a note
Cirsium utahense
(Under Cirsium inamoenum var. inamoenum)
Synonym
Cirsium utahense
(Under Cirsium neomexicanum)
Synonym
Cirsium virginense
(Under Cirsium mohavense)
Synonym
Cirsium vulgareBULL THISTLENaturalized
Cirsium walkerianum
(Under Cirsium quercetorum)
Synonym
CissusTREEBINE
Cissus antarcticaKANGAROO IVYWaif
Cistaceae
  ↳  Key to Cistaceae
ROCK-ROSE FAMILY
Cistanthe
  ↳  Key to Cistanthe
Cistanthe ambiguaDESERT CISTANTHENative
Cistanthe maritimaSEASIDE CISTANTHENative
Cistanthe monandra
(Under Calyptridium monandrum)
Synonym
Cistanthe monosperma
(Under Calyptridium monospermum)
Synonym
Cistanthe parryi
(Under Calyptridium parryi)
Synonym
Cistanthe parryi var. arizonica
(Under Calyptridium arizonicum)
Synonym
Cistanthe parryi var. hesseae
(Under Calyptridium parryi var. hesseae)
Synonym
Cistanthe parryi var. nevadensis
(Under Calyptridium parryi var. nevadense)
Synonym
Cistanthe pulchella
(Under Calyptridium pulchellum)
Synonym
Cistanthe pygmaea
(Under Calyptridium pygmaeum)
Synonym
Cistanthe quadripetala
(Under Calyptridium quadripetalum)
Synonym
Cistanthe rosea
(Under Calyptridium roseum)
Synonym
Cistanthe umbellata
(Under Calyptridium umbellatum)
Synonym
Cistus
  ↳  Key to Cistus
ROCK-ROSE
Cistus creticus
(Under Cistus incanus)
Synonym
Cistus incanusNaturalized
Cistus incanus subsp. corsicus
(Under Cistus incanus)
Synonym
Cistus incanus subsp. creticus
(Under Cistus incanus)
Synonym
Cistus incanus subsp. incanus
(Under Cistus incanus)
Synonym
Cistus ladaniferGUM CISTUSNaturalized
Cistus monspeliensisNaturalized
Cistus psilosepalusUrban weed
Cistus salvifolius
(Under Cistus salviifolius)
Synonym
Cistus salviifoliusNaturalized
Cistus villosus
(Under Cistus incanus)
Synonym
Cistus villosus var. corsicus
(Under Cistus incanus)
Synonym
Cistus villosus var. tauricus
(Under Cistus incanus)
Synonym
Cistus villosus var. undulatus
(Under Cistus incanus)
Synonym
Citrullus
Citrullus colocynthis
(Under Citrullus lanatus var. citroides)
Mentioned in
a note
Citrullus colocynthis var. lanatus
(Under Citrullus lanatus var. citroides)
Synonym
Citrullus lanatus var. caffrorum
(Under Citrullus lanatus var. citroides)
Mentioned in
a note
Citrullus lanatus var. citroidesWILD WATERMELONNaturalized
Citrullus lanatus var. lanatus
(Under Citrullus lanatus var. citroides)
Mentioned in
a note
Citrullus vulgaris
(Under Citrullus lanatus var. citroides)
Synonym
CladiumTWIG RUSH
Cladium californicumCALIFORNIA SAWGRASSNative
Cladium mariscus var. californicum
(Under Cladium californicum)
Synonym
Clarkia
  ↳  Key to Clarkia
Clarkia affinisNative
Clarkia amoenaFAREWELL-TO-SPRINGNative
Clarkia amoena subsp. amoenaNative
Clarkia amoena subsp. huntianaNative
Clarkia amoena subsp. whitneyiWHITNEY'S FAREWELL-TO-SPRINGNative
Clarkia arcuataNative
Clarkia australisSMALL'S SOUTHERN CLARKIANative
Clarkia bilobaNative
Clarkia biloba subsp. australisMARIPOSA CLARKIANative
Clarkia biloba subsp. bilobaNative
Clarkia biloba subsp. brandegeae
(Under Clarkia biloba subsp. brandegeeae)
Synonym
Clarkia biloba subsp. brandegeeaeBRANDEGEE'S CLARKIANative
Clarkia borealisNative
Clarkia borealis subsp. aridaSHASTA CLARKIANative
Clarkia borealis subsp. borealisNORTHERN CLARKIANative
Clarkia bottaePUNCHBOWL GODETIANative
Clarkia bottae
(Under Clarkia lewisii)
Synonym
Clarkia breweriBREWER'S CLARKIANative
Clarkia calientensis
(Under Clarkia tembloriensis subsp. calientensis)
Synonym
Clarkia concinnaRED RIBBONSNative
Clarkia concinna subsp. automixaSANTA CLARA RED RIBBONSNative
Clarkia concinna subsp. concinnaNative
Clarkia concinna subsp. raicheiRAICHE'S RED RIBBONSNative
Clarkia cylindricaNative
Clarkia cylindrica subsp. clavicarpaNative
Clarkia cylindrica subsp. cylindricaNative
Clarkia davyiNative
Clarkia deflexa
(Under Clarkia bottae)
Synonym
Clarkia delicataDELICATE CLARKIANative
Clarkia dudleyanaNative
Clarkia epilobioidesNative
Clarkia exilisSLENDER CLARKIANative
Clarkia franciscanaPRESIDIO CLARKIANative
Clarkia gracilisNative
Clarkia gracilis subsp. albicaulisWHITE-STEMMED CLARKIANative
Clarkia gracilis subsp. gracilisNative
Clarkia gracilis subsp. sonomensisNative
Clarkia gracilis subsp. tracyiTRACY'S CLARKIANative
Clarkia heterandraNative
Clarkia imbricataVINE HILL CLARKIANative
Clarkia jolonensisJOLON CLARKIANative
Clarkia lassenensisNative
Clarkia lewisiiLEWIS' CLARKIANative
Clarkia lingulataMERCED CLARKIANative
Clarkia mildrediaeNative
Clarkia mildrediae subsp. lutescensGOLDEN-ANTHERED CLARKIANative
Clarkia mildrediae subsp. mildrediaeMILDRED'S CLARKIANative
Clarkia modestaNative
Clarkia mosquiniiMOSQUIN'S CLARKIANative
Clarkia mosquinii subsp. mosquinii
(Under Clarkia mosquinii)
Synonym
Clarkia mosquinii subsp. xerophila
(Under Clarkia mosquinii)
Synonym
Clarkia mosquinii subsp. xerophylla
(Under Clarkia mosquinii)
Synonym
Clarkia nitens
(Under Clarkia speciosa subsp. nitens)
Synonym
Clarkia parviflora
(Under Clarkia xantiana subsp. parviflora)
Synonym
Clarkia prostrataNative
Clarkia purpureaNative
Clarkia purpurea subsp. purpureaNative
Clarkia purpurea subsp. quadrivulneraFOUR-SPOTNative
Clarkia purpurea subsp. vimineaNative
Clarkia rhomboideaNative
Clarkia rostrataBEAKED CLARKIANative
Clarkia rubicundaNative
Clarkia rubicunda subsp. blasdalei
(Under Clarkia rubicunda)
Synonym
Clarkia similisNative
Clarkia speciosaNative
Clarkia speciosa subsp. immaculataPISMO CLARKIANative
Clarkia speciosa subsp. nitensNative
Clarkia speciosa subsp. polyanthaNative
Clarkia speciosa subsp. speciosaNative
Clarkia springvillensisSPRINGVILLE CLARKIANative
Clarkia stellataNative
Clarkia tembloriensisNative
Clarkia tembloriensis subsp. calientensisVASEK'S CLARKIANative
Clarkia tembloriensis subsp. longistyla
(Under Clarkia tembloriensis subsp. tembloriensis)
Mentioned in
a note
Clarkia tembloriensis subsp. tembloriensisNative
Clarkia unguiculataNative
Clarkia virgataSIERRA CLARKIANative
Clarkia virgata subsp. australis
(Under Clarkia australis)
Synonym
Clarkia williamsoniiNative
Clarkia williamsonii f. incerta
(Under Clarkia williamsonii)
Synonym
Clarkia williamsonii var. incerta
(Under Clarkia williamsonii)
Synonym
Clarkia xantianaNative
Clarkia xantiana subsp. parvifloraKERN CANYON CLARKIANative
Clarkia xantiana subsp. xantianaNative
Claytonia
  ↳  Key to Claytonia
Claytonia bellidifolia
(Under Claytonia megarhiza)
Synonym
Claytonia chenopodina
(Under Claytonia nevadensis)
Synonym
Claytonia cordifoliaNative
Claytonia exiguaNative
Claytonia exigua subsp. exiguaNative
Claytonia exigua subsp. glaucaNative
Claytonia grayana
(Under Lewisia nevadensis)
Synonym
Claytonia gypsophiloidesNative
Claytonia lanceolataWESTERN SPRING BEAUTYNative
Claytonia lanceolata var. peirsonii
(Under Claytonia lanceolata)
Synonym
Claytonia lanceolata var. sessilifolia
(Under Claytonia lanceolata)
Synonym
Claytonia megarhizaFELL-FIELDS CLAYTONIANative
Claytonia megarhiza var. bellidifolia
(Under Claytonia megarhiza)
Synonym
Claytonia nevadensisNative
Claytonia palustrisMARSH CLAYTONIANative
Claytonia parvifloraNative
Claytonia parviflora subsp. grandifloraSTREAMBANK SPRING BEAUTYNative
Claytonia parviflora subsp. parvifloraNative
Claytonia parviflora subsp. parviflora
(Under Claytonia parviflora subsp. utahensis)
Synonym
Claytonia parviflora subsp. utahensisNative
Claytonia parviflora subsp. viridisNative
Claytonia perfoliataMINER'S LETTUCENative
Claytonia perfoliata subsp. intermontanaNative
Claytonia perfoliata subsp. mexicanaNative
Claytonia perfoliata subsp. perfoliataNative
Claytonia perfoliata subsp. perfoliata
(Under Claytonia perfoliata subsp. intermontana)
Synonym
Claytonia rubraNative
Claytonia rubra subsp. depressaNative
Claytonia rubra subsp. rubraNative
Claytonia saxosaNative
Claytonia sibiricaCANDY FLOWERNative
Claytonia sibirica var. bulbifera
(Under Claytonia sibirica)
Synonym
Claytonia sibirica var. sibirica
(Under Claytonia sibirica)
Synonym
Claytonia triphylla
(Under Lewisia triphylla)
Synonym
Claytonia umbellataGREAT BASIN CLAYTONIANative
Claytonia washingtonianaNative
Clematis
  ↳  Key to Clematis
CLEMATIS, VIRGIN'S BOWER
Clematis drummondii
(Under Clematis)
Mentioned in
a note
Clematis lasianthaCHAPARRAL CLEMATIS, PIPESTEM CLEMATISNative
Clematis ligusticifoliaWESTERN VIRGIN'S BOWERNative
Clematis paucifloraSOUTHERN CALIFORNIA CLEMATIS, FEW-FLOWERED CLEMATISNative
Clematis terniflora
(Under Clematis)
Mentioned in
a note
Cleomaceae
  ↳  Key to Cleomaceae
SPIDERFLOWER FAMILY
Cleome jonesii
(Under Peritoma jonesii)
Synonym
Cleome lutea
(Under Peritoma lutea)
Synonym
Cleome lutea var. jonesii
(Under Peritoma jonesii)
Synonym
Cleome lutea var. lutea
(Under Peritoma lutea)
Synonym
Cleome platycarpa
(Under Peritoma platycarpa)
Synonym
Cleome serrulata
(Under Peritoma serrulata)
Synonym
Cleome sparsifolia
(Under Carsonia sparsifolia)
Synonym
Cleomella
  ↳  Key to Cleomella
Cleomella brevipesSHORT-PEDICELLED CLEOMELLANative
Cleomella hillmanii var. goodrichii
(Under Cleomella hillmanii var. hillmanii)
Mentioned in
a note
Cleomella hillmanii var. hillmaniiHILLMAN'S CLEOMELLANative
Cleomella obtusifoliaMOJAVE STINKWEEDNative
Cleomella obtusifolia var. pubescens
(Under Cleomella obtusifolia)
Synonym
Cleomella parvifloraNative
Cleomella plocaspermaNative
Cleomella plocasperma var. mojavensis
(Under Cleomella plocasperma)
Synonym
Cleomella plocasperma var. stricta
(Under Cleomella plocasperma)
Synonym
Clinopodium
  ↳  Key to Clinopodium
Clinopodium chandleriSAN MIGUEL SAVORYNative
Clinopodium douglasiiYERBA BUENANative
Clinopodium hortensis
(Under Clinopodium)
Mentioned in
a note
Clinopodium mimuloidesMONKEY-FLOWER SAVORYNative
Clintonia
  ↳  Key to Clintonia
Clintonia andrewsianaNative
Clintonia unifloraNative
Cneoridium
Cneoridium dumosumBUSHRUENative
Cnicus benedictus
(Under Centaurea benedicta)
Synonym
CochleariaSCURVYGRASS
Cochlearia groenlandicaGREENLAND COCHLEARIANative
Cochlearia officinalis
(Under Cochlearia groenlandica)
Mentioned in
a note
Cochlearia officinalis subsp. arctica
(Under Cochlearia groenlandica)
Synonym
Cochlearia officinalis var. arctica
(Under Cochlearia groenlandica)
Synonym
Cogswellia rigida
(Under Lomatium rigidum)
Synonym
Coincya
Coincya monensis subsp. recurvataSTAR MUSTARDNaturalized
Coix lacryma-jobi
(Under Poaceae (Gramineae))
Mentioned in
a note
Coldenia canescens
(Under Tiquilia canescens)
Synonym
Coldenia nuttallii
(Under Tiquilia nuttallii)
Synonym
Coldenia palmeri
(Under Tiquilia palmeri)
Synonym
Coldenia plicata
(Under Tiquilia plicata)
Synonym
Coleogeton filiformis subsp. alpinus
(Under Stuckenia filiformis subsp. alpina)
Synonym
Coleogeton pectinatus
(Under Stuckenia pectinata)
Synonym
Coleogeton striatus
(Under Stuckenia striata)
Synonym
ColeogyneBLACKBUSH
Coleogyne ramosissimaNative
Coleosanthus argutus
(Under Brickellia atractyloides var. arguta)
Synonym
Coleosanthus californicus
(Under Brickellia californica)
Synonym
Coleosanthus desertorum
(Under Brickellia desertorum)
Synonym
Coleosanthus frutescens
(Under Brickellia frutescens)
Synonym
Coleosanthus grandiflorus
(Under Brickellia grandiflora)
Synonym
Coleosanthus greenei
(Under Brickellia greenei)
Synonym
Coleosanthus incanus
(Under Brickellia incana)
Synonym
Coleosanthus knappianus
(Under Brickellia knappiana)
Synonym
Coleosanthus linifolius
(Under Brickellia oblongifolia var. linifolia)
Synonym
Coleosanthus longifolius
(Under Brickellia longifolia)
Synonym
Coleosanthus microphyllus
(Under Brickellia microphylla var. microphylla)
Synonym
Coleosanthus nevinii
(Under Brickellia nevinii)
Synonym
Coleosanthus oblongifolius var. linifolius
(Under Brickellia oblongifolia var. linifolia)
Synonym
Coleosanthus scaber
(Under Brickellia microphylla var. scabra)
Synonym
Coleosanthus tener
(Under Brickellia californica)
Synonym
Collinsia
  ↳  Key to Collinsia
CHINESE-HOUSES
Collinsia antoninaSAN ANTONIO COLLINSIANative
Collinsia antonina subsp. purpurea
(Under Collinsia antonina)
Synonym
Collinsia bartsiifoliaNative
Collinsia bartsiifolia var. bartsiifoliaNative
Collinsia bartsiifolia var. davidsoniiNative
Collinsia bartsiifolia var. davidsonii
(Under Collinsia bartsiifolia var. stricta)
Synonym
Collinsia bartsiifolia var. hirsuta
(Under Collinsia bartsiifolia var. bartsiifolia)
Mentioned in
a note
Collinsia bartsiifolia var. strictaNative
Collinsia callosaNative
Collinsia childiiNative
Collinsia concolorNative
Collinsia corymbosaROUND-HEADED CHINESE-HOUSESNative
Collinsia franciscana
(Under Collinsia multicolor)
Synonym
Collinsia grandifloraNative
Collinsia grandiflora var. pusilla
(Under Collinsia grandiflora)
Synonym
Collinsia greeneiNative
Collinsia heterophyllaNative
Collinsia heterophylla var. austromontanaDOWNY CHINESE-HOUSESNative
Collinsia heterophylla var. heterophyllaCHINESE-HOUSESNative
Collinsia linearisNative
Collinsia multicolorSAN FRANCISCO COLLINSIANative
Collinsia parryiNative
Collinsia parryi
(Under Collinsia antonina)
Synonym
Collinsia parvifloraBLUE-EYED MARYNative
Collinsia parviflora var. collina
(Under Collinsia sparsiflora var. collina)
Synonym
Collinsia rattaniiNative
Collinsia sparsifloraNative
Collinsia sparsiflora var. arvensis
(Under Collinsia sparsiflora var. sparsiflora)
Mentioned in
a note
Collinsia sparsiflora var. collinaNative
Collinsia sparsiflora var. sparsifloraNative
Collinsia tinctoriaNative
Collinsia torreyiNative
Collinsia torreyi var. brevicarinataNative
Collinsia torreyi var. latifoliaNative
Collinsia torreyi var. torreyiNative
Collinsia torreyi var. wrightiiNative
Collinsia wrightii
(Under Collinsia torreyi)
Mentioned in
a note
Collomia
  ↳  Key to Collomia
TRUMPET FLOWER
Collomia debilis
(Under Collomia larsenii)
Mentioned in
a note
Collomia debilis var. larsenii
(Under Collomia larsenii)
Synonym
Collomia diversifoliaSERPENTINE COLLOMIANative
Collomia grandifloraLARGE-FLOWERED COLLOMIANative
Collomia heterophyllaVARIABLE-LEAF COLLOMIANative
Collomia larseniiTALUS COLLOMIANative
Collomia linearisNARROW-LEAF MOUNTAIN TRUMPETNative
Collomia rawsonianaRAWSON'S FLAMING-TRUMPETNative
Collomia tenellaSLENDER COLLOMIANative
Collomia tinctoriaSTAINING COLLOMIANative
Collomia tracyiTRACY'S COLLOMIANative
Colubrina
Colubrina californicaLAS ANIMAS COLUBRINANative
ColuteaBLADDER SENNA
Colutea arborescensNaturalized
ComandraBASTARD TOADFLAX
Comandra umbellata subsp. californicaNative
ComandraceaeBASTARD TOADFLAX FAMILY
Comarostaphylis
Comarostaphylis diversifolia
  ↳  Key to Comarostaphylis diversifolia
Native
Comarostaphylis diversifolia subsp. diversifoliaSUMMER HOLLYNative
Comarostaphylis diversifolia subsp. planifoliaNative
Comarostaphylis diversifolia var. planifolia
(Under Comarostaphylis diversifolia subsp. planifolia)
Synonym
Comarum
Comarum palustreMARSH CINQUEFOILNative
Comastoma
Comastoma tenellumSAMILAND GENTIANNative
Comastoma tenellum var. tenellum
(Under Comastoma tenellum)
Synonym
Commelina
Commelina benghalensisTROPICAL SPIDERWORTNaturalized
Commelinaceae
  ↳  Key to Commelinaceae
SPIDERWORT FAMILY
Condalia
Condalia globosa var. pubescensSPINY ABROJONative
Condalia lycioides var. canescens
(Under Ziziphus obtusifolia var. canescens)
Synonym
Condalia parryi
(Under Ziziphus parryi var. parryi)
Synonym
Condea
Condea emoryiDESERT LAVENDERNative
Congdonia pinetorum
(Under Sedum niveum)
Synonym
Conicosia
Conicosia pugioniformisNARROWLEAF ICEPLANTNaturalized
Conioselinum
Conioselinum chinense
(Under Conioselinum pacificum)
Synonym
Conioselinum pacificumNative
ConiumPOISON HEMLOCK
Conium maculatumNaturalized
ConringiaHARE'S EAR
Conringia orientalisNaturalized
ConsolidaLARKSPUR
Consolida ajacisNaturalized
Consolida ambigua
(Under Consolida ajacis)
Synonym
Constancea
Constancea neviniiNEVIN'S WOOLLY SUNFLOWERNative
Convolvulaceae
  ↳  Key to Convolvulaceae
MORNING-GLORY FAMILY
Convolvulus
  ↳  Key to Convolvulus
MORNING-GLORY, BINDWEED
Convolvulus althaeoidesWaif
Convolvulus aridus
(Under Calystegia macrostegia subsp. arida)
Synonym
Convolvulus aridus subsp. intermedius
(Under Calystegia macrostegia subsp. intermedia)
Synonym
Convolvulus aridus subsp. longilobus
(Under Calystegia macrostegia subsp. intermedia)
Synonym
Convolvulus aridus subsp. tenuifolius
(Under Calystegia macrostegia subsp. tenuifolia)
Synonym
Convolvulus arvensisBINDWEED, ORCHARD MORNING-GLORYNaturalized
Convolvulus binghamiae
(Under Calystegia sepium subsp. binghamiae)
Synonym
Convolvulus collinus
(Under Calystegia collina)
Synonym
Convolvulus cyclostegius
(Under Calystegia macrostegia subsp. cyclostegia)
Synonym
Convolvulus deltoideus
(Under Calystegia occidentalis subsp. fulcrata)
Synonym
Convolvulus fruticetorum
(Under Calystegia occidentalis subsp. occidentalis)
Synonym
Convolvulus fulcratus
(Under Calystegia occidentalis subsp. fulcrata)
Synonym
Convolvulus limnophilus
(Under Calystegia sepium subsp. limnophila)
Synonym
Convolvulus linearilobus
(Under Calystegia longipes)
Synonym
Convolvulus longipes
(Under Calystegia longipes)
Synonym
Convolvulus malacophyllus subsp. collinus
(Under Calystegia collina)
Synonym
Convolvulus malacophyllus subsp. pedicellatus
(Under Calystegia malacophylla subsp. pedicellata)
Synonym
Convolvulus nyctagineus
(Under Calystegia atriplicifolia subsp. buttensis)
Synonym
Convolvulus occidentalis var. purpuratus
(Under Calystegia purpurata subsp. purpurata)
Synonym
Convolvulus occidentalis var. saxicola
(Under Calystegia purpurata subsp. saxicola)
Synonym
Convolvulus occidentalis var. solanensis
(Under Calystegia purpurata subsp. purpurata)
Synonym
Convolvulus peirsonii
(Under Calystegia peirsonii)
Synonym
Convolvulus polymorphus
(Under Calystegia occidentalis subsp. occidentalis)
Synonym
Convolvulus sepium var. dumetorum
(Under Calystegia sepium subsp. binghamiae)
Synonym
Convolvulus sepium var. repens
(Under Calystegia sepium subsp. limnophila)
Synonym
Convolvulus simulansSMALL-FLOWERED MORNING-GLORYNative
Convolvulus soldanella
(Under Calystegia soldanella)
Synonym
Convolvulus subacaulis
(Under Calystegia subacaulis subsp. subacaulis)
Synonym
Convolvulus subacaulis var. dolosus
(Under Calystegia subacaulis subsp. subacaulis)
Synonym
Convolvulus tomentellus
(Under Calystegia occidentalis subsp. occidentalis)
Mentioned in
a note
Convolvulus tricolorWaif
Convolvulus tridactylosa
(Under Calystegia collina subsp. tridactylosa)
Synonym
Conyza bilbaoana
(Under Erigeron sumatrensis)
Synonym
Conyza bonariensis
(Under Erigeron bonariensis)
Synonym
Conyza canadensis
(Under Erigeron canadensis)
Synonym
Conyza canadensis var. canadensis
(Under Erigeron canadensis)
Synonym
Conyza coulteri
(Under Laennecia coulteri)
Synonym
Conyza floribunda
(Under Erigeron sumatrensis)
Synonym
Conyza squamata
(Under Symphyotrichum subulatum var. squamatum)
Synonym
Conyza sumatrensis
(Under Erigeron sumatrensis)
Synonym
Conyza sumatrensis var. sumatrensis
(Under Erigeron sumatrensis)
Mentioned in
a note
Coprosma
Coprosma repensMIRROR BUSHWaif
CoptisGOLDTHREAD
Coptis laciniataOREGON GOLDTHREADNative
Corallorhiza
  ↳  Key to Corallorhiza
CORALROOT
Corallorhiza maculataSPOTTED CORALROOTNative
Corallorhiza maculata var. maculataNative
Corallorhiza maculata var. occidentalisNative
Corallorhiza mertensianaWESTERN CORALROOTNative
Corallorhiza striataSTRIPED CORALROOTNative
Corallorhiza striata var. striata
(Under Corallorhiza striata)
Synonym
Corallorhiza striata var. vreelandii
(Under Corallorhiza striata)
Synonym
Corallorhiza trifidaNORTHERN CORALROOTNative
Cordylanthus
  ↳  Key to Cordylanthus
BIRD'S-BEAK
Cordylanthus bernardinus
(Under Cordylanthus eremicus subsp. eremicus)
Synonym
Cordylanthus capitatusYAKIMA BIRD'S-BEAKNative
Cordylanthus eremicusNative
Cordylanthus eremicus subsp. eremicusDESERT BIRD'S-BEAKNative
Cordylanthus eremicus subsp. kernensisKERN PLATEAU BIRD'S-BEAKNative
Cordylanthus ferrisianus
(Under Cordylanthus rigidus subsp. rigidus)
Synonym
Cordylanthus filifolius
(Under Cordylanthus rigidus subsp. setiger)
Synonym
Cordylanthus hansenii
(Under Cordylanthus pilosus subsp. hansenii)
Synonym
Cordylanthus helleri
(Under Cordylanthus kingii subsp. helleri)
Synonym
Cordylanthus hispidus
(Under Chloropyron molle subsp. hispidum)
Synonym
Cordylanthus kingii subsp. helleriNative
Cordylanthus littoralis
(Under Cordylanthus rigidus subsp. littoralis)
Synonym
Cordylanthus littoralis subsp. platycephalus
(Under Cordylanthus rigidus subsp. rigidus)
Synonym
Cordylanthus maritimus
(Under Chloropyron maritimum)
Synonym
Cordylanthus maritimus subsp. canescens
(Under Chloropyron maritimum subsp. canescens)
Synonym
Cordylanthus maritimus subsp. maritimus
(Under Chloropyron maritimum subsp. maritimum)
Synonym
Cordylanthus maritimus subsp. palustris
(Under Chloropyron maritimum subsp. palustre)
Synonym
Cordylanthus mollis subsp. hispidus
(Under Chloropyron molle subsp. hispidum)
Synonym
Cordylanthus mollis subsp. mollis
(Under Chloropyron molle subsp. molle)
Synonym
Cordylanthus neviniiNative
Cordylanthus nidulariusMOUNT DIABLO BIRD'S-BEAKNative
Cordylanthus orcuttianus
(Under Dicranostegia orcuttiana)
Synonym
Cordylanthus pallescens
(Under Cordylanthus tenuis subsp. pallescens)
Synonym
Cordylanthus palmatus
(Under Chloropyron palmatum)
Synonym
Cordylanthus parviflorusSMALL-FLOWERED BIRD'S-BEAKNative
Cordylanthus pilosusNative
Cordylanthus pilosus subsp. bolanderi
(Under Cordylanthus tenuis subsp. tenuis)
Synonym
Cordylanthus pilosus subsp. diffusus
(Under Cordylanthus pilosus subsp. pilosus)
Synonym
Cordylanthus pilosus subsp. hanseniiNative
Cordylanthus pilosus subsp. pilosusNative
Cordylanthus pilosus subsp. trifidusNative
Cordylanthus pilosus var. brunneus
(Under Cordylanthus tenuis subsp. brunneus)
Synonym
Cordylanthus pringleiNative
Cordylanthus ramosusNative
Cordylanthus ramosus subsp. eremicus
(Under Cordylanthus eremicus subsp. eremicus)
Synonym
Cordylanthus ramosus subsp. setosus
(Under Cordylanthus ramosus)
Synonym
Cordylanthus rigidusNative
Cordylanthus rigidus subsp. brevibracteatusSHORT-BRACTED BIRD'S-BEAKNative
Cordylanthus rigidus subsp. littoralisSEASIDE BIRD'S-BEAKNative
Cordylanthus rigidus subsp. rigidusNative
Cordylanthus rigidus subsp. setigerNative
Cordylanthus rigidus var. compactus
(Under Cordylanthus rigidus subsp. rigidus)
Synonym
Cordylanthus rigidus var. ferrisianus
(Under Cordylanthus rigidus subsp. rigidus)
Synonym
Cordylanthus tecopensis
(Under Chloropyron tecopense)
Synonym
Cordylanthus tenuisNative
Cordylanthus tenuis subsp. barbatusFRESNO COUNTY BIRD'S-BEAKNative
Cordylanthus tenuis subsp. brunneusSERPENTINE BIRD'S-BEAKNative
Cordylanthus tenuis subsp. capillarisPENNELL'S BIRD'S-BEAKNative
Cordylanthus tenuis subsp. pallescensPALLID BIRD'S-BEAKNative
Cordylanthus tenuis subsp. tenuisNative
Cordylanthus tenuis subsp. viscidusNative
Cordylanthus viscidus
(Under Cordylanthus tenuis subsp. viscidus)
Synonym
CordylineCABBAGE TREE
Cordyline australisNEW ZEALAND CABBAGE TREENaturalized
Coreopsis
  ↳  Key to Coreopsis
Coreopsis atkinsoniana
(Under Coreopsis tinctoria)
Synonym
Coreopsis bigelovii
(Under Leptosyne bigelovii)
Synonym
Coreopsis californica
(Under Leptosyne californica)
Synonym
Coreopsis calliopsidea
(Under Leptosyne calliopsidea)
Synonym
Coreopsis douglasii
(Under Leptosyne douglasii)
Synonym
Coreopsis gigantea
(Under Leptosyne gigantea)
Synonym
Coreopsis hamiltonii
(Under Leptosyne hamiltonii)
Synonym
Coreopsis lanceolataGARDEN COREOPSISNaturalized
Coreopsis maritima
(Under Leptosyne maritima)
Synonym
Coreopsis stillmanii
(Under Leptosyne stillmanii)
Synonym
Coreopsis tinctoriaCALLIOPSISNaturalized
Coreopsis tinctoria var. atkinsoniana
(Under Coreopsis tinctoria)
Synonym
Coreopsis wrightii
(Under Coreopsis)
Mentioned in
a note
Coreopsis wrightii
(Under Thelesperma)
Mentioned in
a note
CorethrogyneCALIFORNIA-ASTER, SAND-ASTER
Corethrogyne filaginifoliaNative
Coriandrum
Coriandrum sativumCORIANDER, CILANTRONaturalized
CorispermumBUGSEED
Corispermum americanum var. americanumAMERICAN BUGSEEDNative
Corispermum hyssopifolium
(Under Corispermum americanum var. americanum)
Synonym
Corispermum hyssopifolium var. americanum
(Under Corispermum americanum var. americanum)
Synonym
CornaceaeDOGWOOD FAMILY
Cornus
  ↳  Key to Cornus
DOGWOOD
Cornus ×californica C.A. Mey.
(Under Cornus sericea subsp. sericea)
Synonym
Cornus californica
(Under Cornus sericea subsp. sericea)
Synonym
Cornus californica var. nevadensis
(Under Cornus sericea subsp. sericea)
Synonym
Cornus canadensisBUNCHBERRYNative
Cornus glabrataBROWN DOGWOOD; Native
Cornus nuttalliiMOUNTAIN DOGWOODNative
Cornus occidentalis
(Under Cornus sericea subsp. occidentalis)
Synonym
Cornus sericeaAMERICAN DOGWOODNative
Cornus sericea subsp. occidentalisNative
Cornus sericea subsp. sericeaNative
Cornus sessilisNative
Cornus stolonifera
(Under Cornus sericea subsp. sericea)
Synonym
Coronilla
  ↳  Key to Coronilla
Coronilla valentina subsp. glaucaWaif
Coronilla variaCROWN VETCHNaturalized
Coronopus didymus
(Under Lepidium didymum)
Synonym
Coronopus squamatus
(Under Lepidium coronopus)
Synonym
Cortaderia
  ↳  Key to Cortaderia
Cortaderia jubataPURPLE PAMPAS GRASS, JUBATA GRASSNaturalized
Cortaderia selloanaPAMPAS GRASSNaturalized
Corydalis
  ↳  Key to Corydalis
Corydalis aureaGOLDEN CORYDALISNative
Corydalis caseana subsp. caseanaSIERRA CORYDALIS, FITWEEDNative
CorylusHAZELNUT
Corylus californica
(Under Corylus cornuta subsp. californica)
Synonym
Corylus cornuta subsp. californicaCALIFORNIA HAZELNative
Corylus cornuta var. californica
(Under Corylus cornuta subsp. californica)
Synonym
Corylus rostrata var. tracyi
(Under Corylus cornuta subsp. californica)
Synonym
Corymbia citriodora
(Under Eucalyptus citriodora)
Mentioned in
a note
Coryphantha
  ↳  Key to Coryphantha
BEEHIVE CACTUS
Coryphantha alversoniiFOXTAIL CACTUSNative
Coryphantha chloranthaDESERT PINCUSHIONNative
Coryphantha deserti
(Under Coryphantha chlorantha)
Synonym
Coryphantha vivipara var. alversonii
(Under Coryphantha alversonii)
Synonym
Coryphantha vivipara var. deserti
(Under Coryphantha chlorantha)
Synonym
Coryphantha vivipara var. roseaVIVIPAROUS FOXTAIL CACTUSNative
Cosmanthus grandiflorus
(Under Phacelia grandiflora)
Synonym
Cosmos
  ↳  Key to Cosmos
Cosmos bipinnatusGARDEN COSMOSNaturalized
Cosmos sulphureusGarden weed
CotaGOLDEN MARGUERITE, YELLOW CHAMOMILE
Cota tinctoriaGOLDEN MARGUERITEWaif
Cotoneaster
  ↳  Key to Cotoneaster
Cotoneaster franchetiiFRANCHET'S COTONEASTERNaturalized
Cotoneaster frigidusTREE COTONEASTERNaturalized
Cotoneaster hodjingensisEARTHQUAKE COTONEASTERNaturalized
Cotoneaster horizontalisWALL or HERRINGBONE COTONEASTERNaturalized
Cotoneaster integrifoliusENTIRE-LEAVED COTONEASTERNaturalized
Cotoneaster lacteusLATE COTONEASTERNaturalized
Cotoneaster microphyllus
(Under Cotoneaster integrifolius)
Synonym
Cotoneaster pannosa
(Under Cotoneaster pannosus)
Synonym
Cotoneaster pannosusSILVERLEAF COTONEASTERNaturalized
Cotoneaster simonsiiHIMALAYAN COTONEASTERNaturalized
Cotula
  ↳  Key to Cotula
Cotula australisAUSTRALIAN COTULANaturalized
Cotula coronopifoliaBRASS-BUTTONSNaturalized
Cotula mexicana
(Under Cotula)
Mentioned in
a note
Cotyledon
Cotyledon caespitosa var. paniculata
(Under Dudleya cymosa subsp. paniculata)
Synonym
Cotyledon orbiculata var. oblongaNaturalized
Crassula
  ↳  Key to Crassula
Crassula aquaticaNative
Crassula argentea
(Under Crassula ovata)
Synonym
Crassula argentea
(Under Crassula)
Mentioned in
a note
Crassula colligata subsp. lamprospermaNaturalized
Crassula connataPYGMY-WEEDNative
Crassula connata var. connata
(Under Crassula connata)
Synonym
Crassula connata var. erectoides
(Under Crassula connata)
Synonym
Crassula connata var. eremica
(Under Crassula connata)
Synonym
Crassula connata var. subsimplex
(Under Crassula connata)
Synonym
Crassula erecta
(Under Crassula connata)
Synonym
Crassula multicava subsp. multicavaFAIRY CRASSULAWaif
Crassula ovataJADE PLANTWaif
Crassula saginoides
(Under Crassula aquatica)
Synonym
Crassula solieriNative
Crassula tetragonaMINIATURE or CHINESE PINE-TREENaturalized
Crassula tillaeaNaturalized
Crassulaceae
  ↳  Key to Crassulaceae
STONECROP FAMILY
Crataegus
  ↳  Key to Crataegus
HAWTHORN
Crataegus castlegarensisNative
Crataegus columbiana
(Under Crataegus douglasii)
Synonym
Crataegus douglasiiNative
Crataegus gaylussaciaNative
Crataegus laevigata
(Under Crataegus)
Mentioned in
a note
Crataegus monogynaNaturalized
Crataegus oxyacantha
(Under Crataegus)
Mentioned in
a note
Crataegus phaenopyrum
(Under Crataegus)
Mentioned in
a note
Crataegus suksdorfii
(Under Crataegus gaylussacia)
Synonym
Crepis
  ↳  Key to Crepis
HAWKSBEARD
Crepis acuminataNative
Crepis bakeriNative
Crepis bakeri subsp. bakeriNative
Crepis bakeri subsp. cusickiiNative
Crepis bakeri subsp. idahoensisNative
Crepis barbata
(Under Tolpis barbata)
Synonym
Crepis bursifoliaWaif
Crepis capillarisNaturalized
Crepis geisseana
(Under Malacothrix clevelandii)
Synonym
Crepis intermediaNative
Crepis modocensisNative
Crepis modocensis subsp. modocensisNative
Crepis modocensis subsp. subacaulisNative
Crepis monticolaNative
Crepis nanaNative
Crepis nana subsp. ramosa
(Under Crepis nana)
Synonym
Crepis nana var. ramosa
(Under Crepis nana)
Synonym
Crepis occidentalisNative
Crepis occidentalis subsp. conjunctaNative
Crepis occidentalis subsp. costataNative
Crepis occidentalis subsp. occidentalisNative
Crepis occidentalis subsp. pumilaNative
Crepis pleurocarpaNative
Crepis rubra
(Under Crepis)
Mentioned in
a note
Crepis runcinataNative
Crepis runcinata subsp. andersoniiNative
Crepis runcinata subsp. halliiHALL'S MEADOW HAWKSBEARDNative
Crepis runcinata var. andersonii
(Under Crepis runcinata subsp. andersonii)
Synonym
Crepis setosaNaturalized
Crepis tectorumNaturalized
Crepis vesicaria subsp. taraxacifoliaNaturalized
Cressa
Cressa truxillensisALKALI WEEDNative
Cressa truxillensis var. vallicola
(Under Cressa truxillensis)
Synonym
Creusa tetragona
(Under Crassula tetragona)
Synonym
Crocanthemum
  ↳  Key to Crocanthemum
SUN-ROSE, RUSH-ROSE
Crocanthemum aldersoniiALDERSON'S RUSH-ROSENative
Crocanthemum greeneiISLAND RUSH-ROSENative
Crocanthemum scopariumPEAK RUSH-ROSENative
Crocanthemum scoparium var. scopariumNative
Crocanthemum scoparium var. vulgareNative
Crocanthemum suffrutescensBISBEE PEAK RUSH-ROSENative
CrocidiumSPRING GOLD
Crocidium multicauleNative
Crocosmia
Crocosmia ×crocosmiifloraNaturalized
Crocosmia aurea
(Under Crocosmia ×crocosmiiflora)
Mentioned in
a note
Crocosmia pottsii
(Under Crocosmia ×crocosmiiflora)
Mentioned in
a note
Crossosoma
  ↳  Key to Crossosoma
Crossosoma bigeloviiNative
Crossosoma californicumCATALINA CROSSOSOMANative
Crossosomataceae
  ↳  Key to Crossosomataceae
CROSSOSOMA FAMILY
Croton
  ↳  Key to Croton
Croton californicusNative
Croton californicus var. mohavensis
(Under Croton californicus)
Synonym
Croton californicus var. tenuis
(Under Croton californicus)
Synonym
Croton setigerTURKEY-MULLEINNative
Croton setigerus
(Under Croton setiger)
Synonym
Croton wigginsiiWIGGINS' CROTONNative
CrucianellaCROSS-WORT
Crucianella angustifoliaNaturalized
Crupina
Crupina vulgarisBEARDED CREEPERNaturalized
Crypsis
  ↳  Key to Crypsis
PRICKLE GRASS
Crypsis alopecuroidesFOXTAIL PRICKLE GRASSNaturalized
Crypsis niliaca
(Under Crypsis vaginiflora)
Synonym
Crypsis schoenoidesSWAMP PRICKLE GRASSNaturalized
Crypsis vaginifloraMODEST PRICKLE GRASSNaturalized
Cryptantha
  ↳  Key to Cryptantha
Cryptantha affinisSIDE-GROOVED CRYPTANTHANative
Cryptantha alpicola
(Under Cryptantha humilis)
Synonym
Cryptantha ambiguaWILKES' CRYPTANTHANative
Cryptantha angustifoliaNARROW-LEAVED CRYPTANTHANative
Cryptantha barbigeraNative
Cryptantha barbigera var. barbigeraBEARDED CRYPTANTHANative
Cryptantha barbigera var. fergusoniaePALM SPRINGS CRYPTANTHANative
Cryptantha celosioidesCOCKS-COMB CAT'S-EYENative
Cryptantha cinerea var. abortivaBOW-NUT CRYPTANTHANative
Cryptantha circumscissaNative
Cryptantha circumscissa var. circumscissaCUSHION CRYPTANTHANative
Cryptantha circumscissa var. hispida
(Under Cryptantha circumscissa var. circumscissa)
Synonym
Cryptantha circumscissa var. rosulataROSETTE CUSHION CRYPTANTHANative
Cryptantha clevelandiiNative
Cryptantha clevelandii var. clevelandiiCLEVELAND'S CRYPTANTHANative
Cryptantha clevelandii var. dissita
(Under Cryptantha dissita)
Synonym
Cryptantha clevelandii var. florosaCOASTAL CRYPTANTHANative
Cryptantha clevelandii var. hispidissima
(Under Cryptantha clevelandii var. florosa)
Synonym
Cryptantha clokeyiCLOKEY'S CRYPTANTHANative
Cryptantha confertifloraYELLOW-FLOWERED CRYPTANTHANative
Cryptantha corollataCOAST RANGE CRYPTANTHANative
Cryptantha corollata subsp. rattanii
(Under Cryptantha rattanii)
Synonym
Cryptantha costataRIBBED CRYPTANTHANative
Cryptantha crinitaSILKY CRYPTANTHANative
Cryptantha crymophilaSUBALPINE CRYPTANTHANative
Cryptantha decipiensGRAVEL CRYPTANTHANative
Cryptantha decipiens
(Under Cryptantha rattanii)
Synonym
Cryptantha decipiens var. corollata
(Under Cryptantha corollata)
Synonym
Cryptantha dissitaLAKE CRYPTANTHANative
Cryptantha dumetorumSCRAMBLING CRYPTANTHANative
Cryptantha echinellaHEDGEHOG CRYPTANTHANative
Cryptantha excavataDEEP-SCARRED CRYPTANTHANative
Cryptantha fendleriSAND DUNE CRYPTANTHANative
Cryptantha flaccidaWEAK-STEMMED or PALE CRYPTANTHANative
Cryptantha flavoculataYELLOW-EYED CRYPTANTHANative
Cryptantha ganderiGANDER'S CRYPTANTHANative
Cryptantha glomerifloraCLUSTERED-FLOWER CRYPTANTHANative
Cryptantha gracilisSLENDER CRYPTANTHANative
Cryptantha hansenii
(Under Cryptantha intermedia var. intermedia)
Synonym
Cryptantha hendersonii
(Under Cryptantha intermedia var. hendersonii)
Synonym
Cryptantha hispidissima
(Under Cryptantha clevelandii var. florosa)
Synonym
Cryptantha hispidulaNAPA CRYPTANTHANative
Cryptantha hoffmanniiWHITE MOUNTAINS CRYPTANTHANative
Cryptantha holopteraWINGED CRYPTANTHANative
Cryptantha hooveriHOOVER'S CRYPTANTHANative
Cryptantha humilisLOW CRYPTANTHANative
Cryptantha inaequataPANAMINT CRYPTANTHANative
Cryptantha incanaTULARE CRYPTANTHANative
Cryptantha intermediaNative
Cryptantha intermedia var. grandiflora
(Under Cryptantha intermedia var. hendersonii)
Synonym
Cryptantha intermedia var. hendersoniiHENDERSON'S CRYPTANTHANative
Cryptantha intermedia var. intermediaNative
Cryptantha intermedia var. rigida
(Under Cryptantha nevadensis var. rigida)
Synonym
Cryptantha jamesii var. abortiva
(Under Cryptantha cinerea var. abortiva)
Synonym
Cryptantha leiocarpaBEACH CRYPTANTHANative
Cryptantha mariposaeMARIPOSA CRYPTANTHANative
Cryptantha maritimaGUADALUPE CRYPTANTHANative
Cryptantha maritima var. pilosa
(Under Cryptantha maritima)
Synonym
Cryptantha micranthaNative
Cryptantha micrantha var. lepidaMOUNTAIN RED-ROOT CRYPTANTHANative
Cryptantha micrantha var. micranthaRED-ROOT CRYPTANTHANative
Cryptantha micromeresMINUTE-FLOWERED CRYPTANTHANative
Cryptantha microstachysTEJON CRYPTANTHANative
Cryptantha milobakeriMILO BAKER'S CRYPTANTHANative
Cryptantha mohavensisMOJAVE CRYPTANTHANative
Cryptantha muricataNative
Cryptantha muricata var. clokeyi
(Under Cryptantha clokeyi)
Synonym
Cryptantha muricata var. denticulataPRICKLY-NUT CRYPTANTHANative
Cryptantha muricata var. jonesiiJONES' CRYPTANTHANative
Cryptantha muricata var. muricataSHOWY PRICKLY-NUT CRYPTANTHANative
Cryptantha nemacladaCOLUSA CRYPTANTHANative
Cryptantha nevadensisNative
Cryptantha nevadensis var. nevadensisNEVADA CRYPTANTHANative
Cryptantha nevadensis var. rigidaRIGID CRYPTANTHANative
Cryptantha nubigenaSIERRA CRYPTANTHANative
Cryptantha oxygonaSHARP-NUT CRYPTANTHANative
Cryptantha pterocaryaNative
Cryptantha pterocarya var. cyclopteraTUCSON CRYPTANTHANative
Cryptantha pterocarya var. pterocaryaWINGED-NUT CRYPTANTHANative
Cryptantha pterocarya var. purpusiiPURPUS' CRYPTANTHANative
Cryptantha racemosaSHRUBBY CRYPTANTHANative
Cryptantha rattaniiRATTAN'S CRYPTANTHANative
Cryptantha recurvataCURVED-NUT CRYPTANTHANative
Cryptantha roosiorumBRISTLECONE CRYPTANTHANative
Cryptantha rostellataRED-STEMMED CRYPTANTHANative
Cryptantha rostellata var. spithamaea
(Under Cryptantha spithamaea)
Synonym
Cryptantha saxorum
(Under Cryptantha costata)
Synonym
Cryptantha schoolcraftiiSCHOOLCRAFT'S CRYPTANTHANative
Cryptantha scopariaGRAY CRYPTANTHANative
Cryptantha seorsa
(Under Cryptantha costata)
Synonym
Cryptantha similisDOME CRYPTANTHANative
Cryptantha simulansPINE CRYPTANTHANative
Cryptantha sobolifera
(Under Cryptantha)
Mentioned in
a note
Cryptantha sparsifloraFEW-FLOWERED CRYPTANTHANative
Cryptantha spithamaeaNative
Cryptantha subretusaCRATER LAKE CRYPTANTHANative
Cryptantha torreyanaNative
Cryptantha torreyana var. calistogae
(Under Cryptantha torreyana var. torreyana)
Synonym
Cryptantha torreyana var. pumilaDWARF CRYPTANTHANative
Cryptantha torreyana var. scrutata
(Under Cryptantha milobakeri)
Synonym
Cryptantha torreyana var. torreyanaTORREY'S CRYPTANTHANative
Cryptantha traskiaeTRASK'S CRYPTANTHANative
Cryptantha trifurca
(Under Cryptantha intermedia var. hendersonii)
Synonym
Cryptantha tumulosaNEW YORK MOUNTAINS CRYPTANTHANative
Cryptantha utahensisSCENTED CRYPTANTHANative
Cryptantha virginensisVIRGIN RIVER CRYPTANTHANative
Cryptantha watsoniiWATSON'S CRYPTANTHANative
Cryptogramma
  ↳  Key to Cryptogramma
PARSLEY FERN, ROCK-BRAKE
Cryptogramma acrostichoidesAMERICAN PARSLEY FERNNative
Cryptogramma cascadensisCASCADE PARSLEY FERNNative
Cucumis
  ↳  Key to Cucumis
CUCUMBER, MELON
Cucumis anguria
(Under Cucumis melo var. dudaim)
Mentioned in
a note
Cucumis melo var. dudaimDUDAIM MELONNaturalized
Cucumis melo var. melo
(Under Cucumis melo var. dudaim)
Mentioned in
a note
Cucumis myriocarpusPADDY MELONNaturalized
Cucurbita
  ↳  Key to Cucurbita
GOURD, FIELD PUMPKIN, SQUASH
Cucurbita argyrosperma
(Under Cucurbita pepo var. pepo)
Mentioned in
a note
Cucurbita californica
(Under Cucurbita palmata)
Synonym
Cucurbita digitataFINGER-LEAVED GOURDNative
Cucurbita ficifolia
(Under Cucurbita pepo var. pepo)
Mentioned in
a note
Cucurbita foetidissimaBUFFALO GOURD, CALABAZILLANative
Cucurbita moschata
(Under Cucurbita pepo var. pepo)
Mentioned in
a note
Cucurbita palmataCOYOTE MELONNative
Cucurbita pepo
(Under Cucurbita pepo var. pepo)
Mentioned in
a note
Cucurbita pepo subsp. fraterna
(Under Cucurbita pepo var. pepo)
Mentioned in
a note
Cucurbita pepo var. medullosa
(Under Cucurbita pepo var. pepo)
Mentioned in
a note
Cucurbita pepo var. pepoCALABAZA, FIELD PUMPKINNaturalized
Cucurbitaceae
  ↳  Key to Cucurbitaceae
GOURD FAMILY
CuniculotinusPANAMINT ROCK-GOLDENROD
Cuniculotinus gramineusNative
Cupaniopsis anacardioides
(Under Sapindaceae)
Mentioned in
a note
Cupressaceae
  ↳  Key to Cupressaceae
CYPRESS FAMILY
Cupressus abramsiana
(Under Hesperocyparis abramsiana)
Synonym
Cupressus abramsiana subsp. butanoensis
(Under Hesperocyparis abramsiana var. butanoensis)
Synonym
Cupressus abramsiana subsp. locatellii
(Under Hesperocyparis abramsiana)
Synonym
Cupressus abramsiana subsp. neolomondensis
(Under Hesperocyparis abramsiana)
Synonym
Cupressus abramsiana subsp. opleri
(Under Hesperocyparis abramsiana)
Synonym
Cupressus arizonica subsp. arizonica
(Under Hesperocyparis stephensonii)
Synonym
Cupressus arizonica subsp. nevadensis
(Under Hesperocyparis nevadensis)
Synonym
Cupressus arizonica subsp. revealiana
(Under Hesperocyparis stephensonii)
Synonym
Cupressus arizonica subsp. stephensonii
(Under Hesperocyparis stephensonii)
Synonym
Cupressus arizonica var. glabra
(Under Hesperocyparis stephensonii)
Synonym
Cupressus arizonica var. nevadensis
(Under Hesperocyparis nevadensis)
Synonym
Cupressus arizonica var. revealiana
(Under Hesperocyparis stephensonii)
Synonym
Cupressus arizonica var. stephensonii
(Under Hesperocyparis stephensonii)
Synonym
Cupressus bakeri
(Under Hesperocyparis bakeri)
Synonym
Cupressus bakeri subsp. bakeri
(Under Hesperocyparis bakeri)
Synonym
Cupressus bakeri subsp. matthewsii
(Under Hesperocyparis bakeri)
Synonym
Cupressus butanoensis
(Under Hesperocyparis abramsiana var. butanoensis)
Synonym
Cupressus forbesii
(Under Hesperocyparis forbesii)
Synonym
Cupressus goveniana
(Under Hesperocyparis goveniana)
Synonym
Cupressus goveniana subsp. gibsonensis
(Under Hesperocyparis goveniana)
Synonym
Cupressus goveniana subsp. goveniana
(Under Hesperocyparis goveniana)
Synonym
Cupressus goveniana subsp. pigmaea
(Under Hesperocyparis pygmaea)
Synonym
Cupressus goveniana subsp. pygmaea
(Under Hesperocyparis pygmaea)
Synonym
Cupressus goveniana var. pygmaea
(Under Hesperocyparis pygmaea)
Synonym
Cupressus guadalupensis var. forbesii
(Under Hesperocyparis forbesii)
Synonym
Cupressus lawsoniana
(Under Chamaecyparis lawsoniana)
Synonym
Cupressus macnabiana
(Under Hesperocyparis macnabiana)
Synonym
Cupressus macnabiana var. nevadensis
(Under Hesperocyparis nevadensis)
Synonym
Cupressus macrocarpa
(Under Hesperocyparis macrocarpa)
Synonym
Cupressus macrocarpa subsp. lobosensis
(Under Hesperocyparis macrocarpa)
Synonym
Cupressus nevadensis
(Under Hesperocyparis nevadensis)
Synonym
Cupressus nootkatensis
(Under Callitropsis nootkatensis)
Synonym
Cupressus pygmaea
(Under Hesperocyparis pygmaea)
Synonym
Cupressus revealiana
(Under Hesperocyparis stephensonii)
Synonym
Cupressus sargentii
(Under Hesperocyparis sargentii)
Synonym
Cupressus sargentii var. duttonii
(Under Hesperocyparis sargentii)
Synonym
Cupressus stephensonii
(Under Hesperocyparis stephensonii)
Synonym
Cuscuta
  ↳  Key to Cuscuta
DODDER
Cuscuta approximataALFALFA DODDERNaturalized
Cuscuta approximata var. urceolata
(Under Cuscuta approximata)
Synonym
Cuscuta brachycalyxNative
Cuscuta brachycalyx var. apodanthera
(Under Cuscuta brachycalyx)
Synonym
Cuscuta californicaCHAPARRAL DODDERNative
Cuscuta californica var. apiculataNative
Cuscuta californica var. apodanthera
(Under Cuscuta brachycalyx)
Synonym
Cuscuta californica var. breviflora
(Under Cuscuta occidentalis)
Synonym
Cuscuta californica var. californicaNative
Cuscuta californica var. papillosaNative
Cuscuta campestrisFIELD DODDERNative
Cuscuta ceanothi
(Under Cuscuta subinclusa)
Mentioned in
a note
Cuscuta cephalanthiBUTTONBUSH DODDERNative
Cuscuta cupulata
(Under Cuscuta approximata)
Synonym
Cuscuta denticulataSMALL-TOOTH DODDERNative
Cuscuta formosana
(Under Cuscuta japonica var. formosana)
Synonym
Cuscuta hispidula
(Under Cuscuta indecora var. indecora)
Synonym
Cuscuta howellianaBOGGS LAKE DODDERNative
Cuscuta indecora
(Under Cuscuta jepsonii)
Mentioned in
a note
Cuscuta indecora var. bifida
(Under Cuscuta indecora var. indecora)
Synonym
Cuscuta indecora var. indecoraLARGE-SEEDED DODDERNative
Cuscuta indecora var. neuropetala
(Under Cuscuta indecora var. indecora)
Synonym
Cuscuta japonica var. formosanaJAPANESE DODDERUrban weed expected in wildlands
Cuscuta japonica var. japonica
(Under Cuscuta japonica var. formosana)
Mentioned in
a note
Cuscuta jepsoniiNative
Cuscuta neuropetala
(Under Cuscuta indecora var. indecora)
Synonym
Cuscuta nevadensisNative
Cuscuta obtusiflora var. glandulosaNative
Cuscuta occidentalisNative
Cuscuta pacificaGOLDENTHREADNative
Cuscuta pacifica var. pacificaNative
Cuscuta pacifica var. papillataNative
Cuscuta pentagona
(Under Cuscuta)
Mentioned in
a note
Cuscuta pentagona
(Under Cuscuta campestris)
Mentioned in
a note
Cuscuta pentagona var. calycina
(Under Cuscuta campestris)
Synonym
Cuscuta reflexaGIANT DODDERExtirpated weed
Cuscuta salinaSALT DODDERNative
Cuscuta salina var. acuminata
(Under Cuscuta suksdorfii)
Synonym
Cuscuta salina var. apoda
(Under Cuscuta nevadensis)
Synonym
Cuscuta salina var. major
(Under Cuscuta pacifica var. pacifica)
Synonym
Cuscuta salina var. papillata
(Under Cuscuta pacifica var. papillata)
Synonym
Cuscuta suaveolensFRINGED DODDERNaturalized
Cuscuta subinclusaNative
Cuscuta subinclusa var. abbreviata
(Under Cuscuta pacifica var. pacifica)
Synonym
Cuscuta suksdorfiiMOUNTAIN DODDERNative
Cuscuta suksdorfii var. subpedicellata
(Under Cuscuta suksdorfii)
Synonym
Cuscuta suksdorfii var. suksdorfii
(Under Cuscuta suksdorfii)
Synonym
Cuscuta veatchiiNative
Cuscuta veatchii var. apoda
(Under Cuscuta nevadensis)
Synonym
Cuscuta vivipara
(Under Cuscuta nevadensis)
Synonym
Cusickiella
  ↳  Key to Cusickiella
Cusickiella douglasiiNative
Cusickiella quadricostataBODIE HILLS CUSICKIELLANative
Cutandia memphitica
(Under Poaceae (Gramineae))
Mentioned in
a note
Cyanopsis
(Under Volutaria)
Synonym
Cyanopsis muricata
(Under Volutaria muricata)
Synonym
Cyathea cooperi
(Under Sphaeropteris cooperi)
Synonym
CyatheaceaeCLIFF FERN FAMILY
Cycladenia
Cycladenia humilis
  ↳  Key to Cycladenia humilis
Native
Cycladenia humilis var. alexandrae
(Under Cycladenia humilis var. jonesii)
Mentioned in
a note
Cycladenia humilis var. humilisNative
Cycladenia humilis var. jonesiiNative
Cycladenia humilis var. tomentosa
(Under Cycladenia humilis var. humilis)
Synonym
Cycladenia humilis var. tomentosa
(Under Cycladenia humilis)
Mentioned in
a note
Cycladenia humilis var. venustaNative
Cycladenia venusta
(Under Cycladenia humilis var. venusta)
Synonym
CyclolomaWINGED PIGWEED
Cycloloma atriplicifoliumNaturalized
Cyclosorus puberulus
(Under Thelypteris puberula var. sonorensis)
Mentioned in
a note
Cyclospermum
Cyclospermum leptophyllumNaturalized
Cylindropuntia
  ↳  Key to Cylindropuntia
CHOLLA
Cylindropuntia ×fosbergii (C.B. Wolf) Rebman, M. A. Baker & Pinkava
(Under Cylindropuntia fosbergii)
Synonym
Cylindropuntia ×munzii (C.B. Wolf) Backeb.
(Under Cylindropuntia munzii)
Synonym
Cylindropuntia ×wigginsii (L.D. Benson) H. Rob.
(Under Cylindropuntia echinocarpa)
Synonym
Cylindropuntia acanthocarpa
(Under Cylindropuntia acanthocarpa var. acanthocarpa)
Mentioned in
a note
Cylindropuntia acanthocarpa var. acanthocarpaBUCKHORN CHOLLANative
Cylindropuntia acanthocarpa var. coloradensis
(Under Cylindropuntia acanthocarpa var. acanthocarpa)
Synonym
Cylindropuntia alcahes
(Under Cylindropuntia prolifera)
Mentioned in
a note
Cylindropuntia bigeloviiTEDDY-BEAR CHOLLANative
Cylindropuntia californicaNative
Cylindropuntia californica var. californicaSNAKE CHOLLANative
Cylindropuntia californica var. parkeriCANE or VALLEY CHOLLANative
Cylindropuntia cholla
(Under Cylindropuntia prolifera)
Mentioned in
a note
Cylindropuntia chuckwallensisCHUCKWALLA CHOLLANative
Cylindropuntia echinocarpaSILVER or GOLDEN CHOLLANative
Cylindropuntia fosbergiiFOSBERG'S OR MASON VALLEY CHOLLANative
Cylindropuntia ganderiGANDER'S CHOLLANative
Cylindropuntia munziiMUNZ'S CHOLLANative
Cylindropuntia proliferaCOAST CHOLLANative
Cylindropuntia ramosissimaDIAMOND CHOLLA, PENCIL CACTUSNative
Cylindropuntia wigginsii
(Under Cylindropuntia echinocarpa)
Synonym
Cylindropuntia wolfiiWOLF'S CHOLLANative
Cymbalaria
Cymbalaria muralisKENILWORTH IVYNaturalized
Cymopterus
  ↳  Key to Cymopterus
Cymopterus aboriginumNative
Cymopterus cinerariusNative
Cymopterus deserticolaDESERT CYMOPTERUSNative
Cymopterus gilmaniiGILMAN'S CYMOPTERUSNative
Cymopterus globosusGLOBOSE CYMOPTERUSNative
Cymopterus multinervatusPURPLE-NERVE CYMOPTERUSNative
Cymopterus panamintensisNative
Cymopterus panamintensis var. acutifoliusNative
Cymopterus panamintensis var. panamintensisNative
Cymopterus purpurascensNative
Cymopterus ripleyiRIPLEY'S CYMOPTERUSNative
Cymopterus ripleyi var. saniculoides
(Under Cymopterus ripleyi)
Synonym
Cymopterus terebinthinusNative
Cymopterus terebinthinus var. californicusNative
Cymopterus terebinthinus var. petraeusNative
Cynanchum utahense
(Under Funastrum utahense)
Synonym
Cynara
Cynara cardunculus
  ↳  Key to Cynara cardunculus
Naturalized
Cynara cardunculus subsp. cardunculusARTICHOKENaturalized
Cynara cardunculus subsp. flavescensNaturalized
Cynara scolymus
(Under Cynara cardunculus subsp. cardunculus)
Synonym
CynodonBERMUDA GRASS, DOG'S-TOOTH GRASS
Cynodon dactylonBERMUDA GRASSNaturalized
Cynodon plectostachyus
(Under Cynodon)
Mentioned in
a note
Cynodon transvaalensis
(Under Cynodon)
Mentioned in
a note
Cynodon transvalensis
(Under Cynodon)
Mentioned in
a note
Cynoglossum
  ↳  Key to Cynoglossum
HOUND'S TONGUE
Cynoglossum grandeGRAND HOUND'S TONGUENative
Cynoglossum occidentaleWESTERN HOUND'S TONGUENative
Cynoglossum officinaleCOMMON HOUND'S TONGUENaturalized
Cynosurus
  ↳  Key to Cynosurus
DOGTAIL GRASS
Cynosurus cristatusCRESTED DOGTAIL GRASSNaturalized
Cynosurus echinatusBRISTLY DOGTAIL GRASSNaturalized
Cyperaceae
  ↳  Key to Cyperaceae
SEDGE FAMILY
Cyperus
  ↳  Key to Cyperus
FLATSEDGE, NUTSEDGE, GALINGALE
Cyperus acuminatusNative
Cyperus albomarginatus
(Under Cyperus flavicomus)
Synonym
Cyperus aristatus
(Under Cyperus squarrosus)
Synonym
Cyperus bipartitusNative
Cyperus diandrus var. castaneus
(Under Cyperus niger)
Synonym
Cyperus difformisNaturalized
Cyperus eragrostisNative
Cyperus erythrorhizosNative
Cyperus esculentusNative
Cyperus esculentus var. heermanniiNative
Cyperus esculentus var. leptostachyusNative
Cyperus esculentus var. macrostachyusNative
Cyperus ferax
(Under Cyperus odoratus)
Synonym
Cyperus flavescensNaturalized
Cyperus flavescens var. poiformis
(Under Cyperus flavescens)
Synonym
Cyperus flavicomusNaturalized
Cyperus fuscusNaturalized
Cyperus gracilis
(Under Cyperus)
Mentioned in
a note
Cyperus hansenii
(Under Cyperus strigosus)
Synonym
Cyperus inflexus
(Under Cyperus squarrosus)
Synonym
Cyperus involucratusNaturalized
Cyperus iriaNaturalized
Cyperus laevigatusNative
Cyperus ligularis
(Under Cyperus)
Mentioned in
a note
Cyperus longus
(Under Cyperus)
Mentioned in
a note
Cyperus nigerNative
Cyperus niger var. capitatus
(Under Cyperus niger)
Synonym
Cyperus niger var. castaneus
(Under Cyperus bipartitus)
Synonym
Cyperus niger var. castaneus
(Under Cyperus niger)
Synonym
Cyperus odoratusNative
Cyperus owanii
(Under Cyperus)
Mentioned in
a note
Cyperus parishiiNative
Cyperus prolifer
(Under Cyperus)
Mentioned in
a note
Cyperus regiomontanus
(Under Cyperus)
Mentioned in
a note
Cyperus retrorsus
(Under Cyperus)
Mentioned in
a note
Cyperus rivularis
(Under Cyperus bipartitus)
Synonym
Cyperus rotundusPURPLE NUTSEDGENaturalized
Cyperus squarrosusNative
Cyperus strigosusFALSE NUTSEDGENative
Cyperus tenellus
(Under Isolepis levynsiana)
Synonym
Cyperus virens
(Under Cyperus)
Mentioned in
a note
Cypripedium
  ↳  Key to Cypripedium
LADY'S-SLIPPER
Cypripedium californicumCALIFORNIA LADY'S-SLIPPERNative
Cypripedium fasciculatumCLUSTERED LADY'S-SLIPPERNative
Cypripedium montanumMOUNTAIN LADY'S-SLIPPERNative
Cypripedium parviflorum var. makasinNORTHERN SMALL YELLOW LADY'S-SLIPPERNative
Cypselea
Cypselea humifusaNaturalized
CyrtomiumHOLLY FERN
Cyrtomium falcatumNaturalized
CystopteridaceaeFRAGILE FERN FAMILY
CystopterisFRAGILE FERN
Cystopteris fragilisNative
Cytisus
  ↳  Key to Cytisus
Cytisus canariensis
(Under Genista canariensis)
Synonym
Cytisus linifolius
(Under Genista linifolia)
Synonym
Cytisus maderensis
(Under Genista maderensis)
Synonym
Cytisus monspessulanus
(Under Genista monspessulana)
Synonym
Cytisus multiflorusSPANISH or PORTUGUESE BROOMNaturalized
Cytisus proliferusTREE LUCERNENaturalized
Cytisus scopariusSCOTCH BROOMNaturalized
Cytisus scoparius var. andreanus
(Under Cytisus scoparius)
Synonym
Cytisus scoparius var. scoparius
(Under Cytisus scoparius)
Synonym
Cytisus striatusNaturalized