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University of Colorado Herbarium Databases

Taxa with Images

This page provides a complete list of taxa that have images. Use the controls below to browse and search for images by family, genus, or species.
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Cabomba caroliniana
Cacaliopsis nardosmia
Caesalpinia caudata
Caesalpinia crista
Caesalpinia drepanocarpa
Caesalpinia gilliesii
Caesalpinia jamesii
Caesalpinia mexicana
Caesalpinia oxycarpa
Caesalpinia parryi
Caesalpinia pulcherrima
Caesalpinia repens
Caesalpinia virgata
Cakile edentula
Cakile edentula ssp. harperi
Cakile geniculata
Cakile harperi
Cakile lanceolata
Cakile maritima
Calamagrostis bolanderi
Calamagrostis breweri
Calamagrostis canadensis
Calamagrostis canadensis var. canadensis
Calamagrostis howellii
Calamagrostis koelerioides
Calamagrostis lapponica
Calamagrostis montanensis
Calamagrostis nutkaensis
Calamagrostis orizabae
Calamagrostis purpurascens
Calamagrostis purpurascens var. laricina
Calamagrostis rubescens
Calamagrostis scopulorum
Calamagrostis stricta
Calamagrostis stricta ssp. inexpansa
Calamagrostis tolucensis
Calamagrostis tweedyi
Calamovilfa brevipilis
Calamovilfa gigantea
Calamovilfa longifolia
Calandrinia breweri
Calandrinia ciliata
Calceolaria tripartita
Caldesia parnassifolia
Calendula arvensis
Calendula officinalis
Calepina irregularis
Calibrachoa parviflora
Calla palustris
Callaeum macropterum
Calliandra californica
Calliandra eriophylla
Calliandra houstoniana
Calliandra humilis
Callicarpa americana
Callicarpa dichotoma
Callicarpa formosana
Callicarpa japonica
Callicladium haldanianum
Callicostella pallida
Calliergon cordifolium
Calliergon giganteum
Calliergon megalophyllum
Calliergon obtusifolium
Calliergon pseudosarmentosum
Calliergon richardsonii
Calliergon stramineum
Calliergon trifarium
Calliergon wickesiae
Calliergonella cuspidata
Calligonum caput-medusae
Callirhoe alcaeoides
Callirhoe digitata
Callirhoe leiocarpa
Callirhoe papaver
Callirhoe pedata
Callirhoe triangulata
Callirhoë involucrata
Callisia graminea
Callisia rosea
Callistemon citrinus
Callistemon linearis
Callistemon rigidus
Callistemon viminalis
Callistopteris baldwinii
Callitriche brutia
Callitriche brutia var. hamulata
Callitriche hamulata
Callitriche hermaphroditica
Callitriche heterophylla
Callitriche heterophylla var. heterophylla
Callitriche marginata
Callitriche palustris
Callitriche pedunculosa
Callitriche peploides
Callitriche stagnalis
Callitriche terrestris
Callitriche verna
Calluna vulgaris
Calochlaena javanica
Calochortus albus
Calochortus amabilis
Calochortus ambiguus
Calochortus amoenus
Calochortus apiculatus
Calochortus aureus
Calochortus bruneaunis
Calochortus catalinae
Calochortus coeruleus
Calochortus dunnii
Calochortus elegans
Calochortus elegans var. selwayensis
Calochortus eurycarpus
Calochortus flexuosus
Calochortus gunnisonii
Calochortus gunnisonii var. gunnisonii
Calochortus howellii
Calochortus invenustus
Calochortus kennedyi
Calochortus kennedyi var. munzii
Calochortus leichtlinii
Calochortus longebarbatus
Calochortus luteus
Calochortus lyallii
Calochortus macrocarpus
Calochortus nitidus
Calochortus nudus
Calochortus nuttallii
Calochortus nuttallii var. nuttallii
Calochortus palmeri var. palmeri
Calochortus persistens
Calochortus pulchellus
Calochortus splendens
Calochortus striatus
Calochortus subalpinus
Calochortus tolmiei
Calochortus uniflorus
Calochortus venustus
Calochortus vestae
Calochortus weedii
Calophanes decumbens
Calopogon barbatus
Calopogon pallidus
Calopogon pulchellus
Calopogon tuberosus var. tuberosus
Calotis cuneifolia
Caltha chionophila
Caltha leptosepala
Caltha minor
Caltha natans
Caltha palustris
Calycadenia fremontii
Calycadenia mollis
Calycadenia multiglandulosa
Calycadenia oppositifolia
Calycadenia pauciflora
Calycadenia spicata
Calycadenia truncata
Calycadenia villosa
Calycanthus fertilis
Calycanthus floridus
Calycanthus floridus var. glaucus
Calycanthus occidentalis
Calycoseris parryi
Calycoseris wrightii
Calylophus berlandieri
Calylophus hartwegii
Calylophus hartwegii ssp. pubescens
Calylophus lavandulifolius
Calylophus serrulatus
Calymperes afzelii
Calymperes erosum
Calymperes palisotii
Calymperes tenerum
Calypogeia azurea
Calypogeia fissa
Calypogeia integristipula
Calypogeia muelleriana
Calypogeia neesiana
Calypogeia peruviana
Calypogeia sphagnicola
Calypogeia suecica
Calypogeia sullivantii
Calypso bulbosa
Calypso bulbosa var. americana
Calyptocarpus vialis
Calystegia atriplicifolia ssp. atriplicifolia
Calystegia catesbeiana
Calystegia longipes
Calystegia macounii
Calystegia macrostegia
Calystegia malacophylla
Calystegia malacophylla var. malacophylla
Calystegia occidentalis
Calystegia occidentalis ssp. fulcrata
Calystegia occidentalis var. occidentalis
Calystegia polymorpha
Calystegia sepium
Calystegia sepium ssp. angulata
Calystegia soldanella
Calystegia spithamaea
Calystegia spithamaea ssp. purshiana
Calystegia subacaulis
Camassia angusta
Camassia cusickii
Camassia howellii
Camassia leichtlinii
Camassia quamash
Camassia scilloides
Camelina microcarpa
Camelina rumelica
Camelina sativa
Camellia sinensis
Camissonia arenaria
Camissonia atwoodii
Camissonia bistorta
Camissonia boothii
Camissonia breviflora
Camissonia brevipes
Camissonia californica
Camissonia campestris
Camissonia cardiophylla
Camissonia chamaenerioides
Camissonia cheiranthifolia
Camissonia claviformis
Camissonia confusa
Camissonia contorta
Camissonia dentata
Camissonia eastwoodiae
Camissonia graciliflora
Camissonia heterochroma
Camissonia hirtella
Camissonia intermedia
Camissonia kernensis
Camissonia lewisii
Camissonia micrantha
Camissonia minor
Camissonia multijuga
Camissonia munzii
Camissonia nevadensis
Camissonia ovata
Camissonia pallida
Camissonia palmeri
Camissonia parryi
Camissonia parvula
Camissonia pterosperma
Camissonia pubens
Camissonia pusilla
Camissonia refracta
Camissonia robusta
Camissonia scapoidea
Camissonia strigulosa
Camissonia subacaulis
Camissonia tanacetifolia
Camissonia walkeri
Camissoniopsis bistorta
Camissoniopsis cheiranthifolia ssp. cheiranthifolia
Camissoniopsis confusa
Camissoniopsis hirtella
Camissoniopsis intermedia
Camissoniopsis lewisii
Camissoniopsis micrantha
Camissoniopsis pallida ssp. pallida
Camissoniopsis robusta
Campanula alaskana
Campanula americana
Campanula aparinoides
Campanula aucheri
Campanula aurita
Campanula bellidifolia ssp. aucheri
Campanula bellidifolia ssp. saxifraga
Campanula bononiensis
Campanula californica
Campanula carpatica
Campanula cervicaria
Campanula chamissonis
Campanula cochlearifolia
Campanula dasyantha
Campanula dasyantha ssp. chamissonis
Campanula divaricata
Campanula floridana
Campanula giesekiana
Campanula glomerata
Campanula lactiflora
Campanula lasiocarpa
Campanula latifolia
Campanula medium
Campanula parryi
Campanula parryi var. idahoensis
Campanula parryi var. parryi
Campanula patula
Campanula persicifolia
Campanula petiolata
Campanula piperi
Campanula prenanthoides
Campanula rapunculoides
Campanula reverchonii
Campanula rotundifolia
Campanula saxifraga
Campanula scabrella
Campanula scouleri
Campanula serrata
Campanula trachelium
Campanula uniflora
Campanula wilkinsiana
Campsis radicans
Camptochaete arbuscula
Campylium chrysophyllum
Campylium halleri
Campylium hispidulum
Campylium polygamum
Campylium stellatum
Campylium stellatum var. arcticum
Campylium stellatum var. protensum
Campyloneurum angustifolium
Campyloneurum phyllitidis
Campyloneurum repens
Campylopodiella stenocarpa
Campylopus angustiretis
Campylopus arctocarpus
Campylopus atrovirens
Campylopus aureus
Campylopus carolinae
Campylopus fragilis
Campylopus oerstedianus
Campylopus pilifer
Campylopus schimperi
Campylopus schwarzii
Campylopus subulatus
Campylopus surinamensis
Campylopus tallulensis
Campylopus zygodonticarpus
Campylostelium saxicola
Canadanthus modestus
Cananga odorata
Canbya aurea
Canbya candida
Canna X generalis
Canna flaccida
Canna indica
Cannabis sativa
Canotia holacantha
Caperonia castaneifolia
Caperonia palustris
Capparis cordifolia
Capparis spinosa
Capraria biflora
Capsella bursa-pastoris
Capsicum annuum
Capsicum baccatum
Caragana arborescens
Caragana aurantiaca
Cardamine angulata
Cardamine angustata
Cardamine bellidifolia
Cardamine breweri
Cardamine bulbifera
Cardamine bulbosa
Cardamine californica
Cardamine clematitis
Cardamine concatenata
Cardamine constancei
Cardamine cordifolia
Cardamine digitata
Cardamine diphylla
Cardamine dissecta
Cardamine douglassii
Cardamine flexuosa
Cardamine hirsuta
Cardamine impatiens
Cardamine maxima
Cardamine microphylla
Cardamine nymanii
Cardamine occidentalis
Cardamine oligosperma
Cardamine oligosperma var. oligosperma
Cardamine pachystigma
Cardamine parviflora
Cardamine penduliflora
Cardamine pensylvanica
Cardamine pratensis
Cardamine purpurea
Cardamine regeliana
Cardamine rotundifolia
Cardamine tenella
Cardamine umbellata
Cardaminopsis petraea
Cardaria chalepensis
Cardaria draba
Cardaria latifolia
Cardaria pubescens
Cardionema ramosissimum
Cardiospermum corindum
Cardiospermum grandiflorum
Cardiospermum halicacabum
Cardiospermum halicacabum var. microcarpum
Cardiospermum microcarpum
Carduus acanthoides
Carduus crispus
Carduus nutans
Carduus nutans ssp. macrolepis
Carduus pycnocephalus
Carduus tenuiflorus
Carex ablata
Carex aboriginum
Carex abrupta
Carex abscondita
Carex adelostoma
Carex adusta
Carex aestivalis
Carex aggregata
Carex alata
Carex albicans var. albicans
Carex albicans var. australis
Carex albida
Carex albo-nigra
Carex albonigra
Carex albursina
Carex alma
Carex alopecoidea
Carex amphibola
Carex amplifolia
Carex angustata
Carex angustior
Carex annectens
Carex anthoxanthea
Carex aperta
Carex aquatilis
Carex aquatilis ssp. aquatilis
Carex aquatilis ssp. stans
Carex aquatilis var. aquatilis
Carex aquatilis var. dives
Carex aquatilis var. minor
Carex arapahoensis
Carex arcta
Carex arctata
Carex arctiformis
Carex argyrantha
Carex artitecta
Carex assiniboinensis
Carex atherodes
Carex athrostachya
Carex atlantica
Carex atlantica ssp. atlantica
Carex atlantica ssp. capillacea
Carex atrata
Carex atratiformis
Carex atrofusca
Carex atrosquama
Carex aurea
Carex austrina
Carex austrocaroliniana
Carex backii
Carex bebbii
Carex bella
Carex bicknellii
Carex bicolor
Carex bigelowii
Carex bigelowii ssp. lugens
Carex biltmoreana
Carex blanda
Carex bolanderi
Carex bonanzensis
Carex bonplandii
Carex brainerdii
Carex brevior
Carex brevipes
Carex breweri
Carex bromoides
Carex brunnescens
Carex bushii
Carex buxbaumii
Carex californica
Carex canescens
Carex canescens ssp. canescens
Carex capillaris
Carex capitata
Carex capitata ssp. arctogena
Carex careyana
Carex caroliniana
Carex castanea
Carex cephalantha
Carex cephaloidea
Carex cephalophora
Carex chalciolepis
Carex chapmanii
Carex cherokeensis
Carex chihuahuensis
Carex chordorrhiza
Carex circinata
Carex communis
Carex comosa
Carex complanata
Carex concinna
Carex concinnoides
Carex congdonii
Carex conjuncta
Carex conoidea
Carex consimilis
Carex crandallii
Carex crawei
Carex crawfordii
Carex crebriflora
Carex crinita
Carex cristatella
Carex crus-corvi
Carex cryptolepis
Carex cumulata
Carex curatorum
Carex cusickii
Carex davisii
Carex debilis
Carex debilis var. rudgei
Carex deflexa
Carex deflexa var. boottii
Carex densa
Carex deweyana
Carex diandra
Carex digitalis
Carex dioica ssp. gynocrates
Carex disperma
Carex douglasii
Carex duriuscula
Carex ebenea
Carex eburnea
Carex echinata
Carex echinata ssp. echinata
Carex echinata ssp. phyllomanica
Carex egglestonii
Carex eleusinoides
Carex elynoides
Carex emoryi
Carex engelmannii
Carex epapillosa
Carex exilis
Carex exsiccata
Carex festivella
Carex festucacea
Carex feta
Carex filifolia
Carex filifolia var. erostrata
Carex fissuricola
Carex flacca
Carex flaccosperma
Carex flava
Carex flexuosa
Carex floridana
Carex foenea
Carex folliculata
Carex fracta
Carex frankii
Carex franklinii
Carex fuliginosa
Carex geophila
Carex geyeri
Carex gigantea
Carex glacialis
Carex glareosa
Carex glareosa ssp. pribylovensis
Carex glaucescens
Carex globosa
Carex gmelinii
Carex gracilescens
Carex gracilior
Carex gracillima
Carex granularis
Carex gravida
Carex gravida var. lunelliana
Carex grayi
Carex grisea
Carex gynandra
Carex gynocrates
Carex gynodynama
Carex halliana
Carex hallii
Carex hassei
Carex haydeniana
Carex haydenii
Carex helleri
Carex hendersonii
Carex heteroneura
Carex hirsutella
Carex hirtifolia
Carex hirtissima
Carex hitchcockiana
Carex holostoma
Carex hoodii
Carex hookerana
Carex hormathodes
Carex houghtoniana
Carex howei
Carex hyalinolepis
Carex hystericina
Carex idahoa
Carex illota
Carex incomperta
Carex incurviformis
Carex indet.
Carex infirminervia
Carex inops
Carex inops ssp. heliophila
Carex integra
Carex interior
Carex intumescens
Carex jamesii
Carex jonesii
Carex joorii
Carex krausei
Carex lachenalii
Carex lacustris
Carex laeviconica
Carex laeviculmis
Carex laevivaginata
Carex lanuginosa
Carex laricina
Carex lasiocarpa
Carex laxiculmis
Carex laxiflora
Carex leavenworthii
Carex lemmonii
Carex lenticularis
Carex lenticularis var. dolia
Carex lenticularis var. impressa
Carex lenticularis var. limnophila
Carex lenticularis var. lipocarpa
Carex leporinella
Carex leptalea
Carex leptonervia
Carex leptopoda
Carex limnophila
Carex limosa
Carex livida
Carex loliacea
Carex longii
Carex louisianica
Carex lugens
Carex lupuliformis
Carex lupulina
Carex lurida
Carex luzulina
Carex luzulina var. ablata
Carex lyngbyei
Carex mackenziei
Carex macloviana
Carex macrocephala
Carex macrochaeta
Carex magellanica
Carex magellanica ssp. irrigua
Carex marina
Carex mariposana
Carex maritima
Carex meadii
Carex media
Carex membranacea
Carex mendocinensis
Carex merritt-fernaldii
Carex mertensii
Carex mesochorea
Carex michauxiana
Carex microchaeta
Carex microdonta
Carex microglochin
Carex micropoda
Carex microptera
Carex misandra
Carex misera
Carex molesta
Carex muehlenbergii
Carex muehlenbergii var. enervis
Carex multicaulis
Carex multicostata
Carex muricata
Carex muskingumensis
Carex nardina
Carex nardina ssp. hepburnii
Carex nebrascensis
Carex nelsonii
Carex nervina
Carex neurophora
Carex nigra
Carex nigricans
Carex nigromarginata
Carex normalis
Carex norvegica
Carex norvegica ssp. norvegica
Carex norvegica ssp. stevenii
Carex nova
Carex novae-angliae
Carex nudata
Carex obispoensis
Carex obnupta
Carex obtusata
Carex occidentalis
Carex oligocarpa
Carex oligosperma
Carex onusta
Carex oreocharis
Carex ormantha
Carex ormostachya
Carex ovalis
Carex oxylepis
Carex pachystachya
Carex paleacea
Carex pallescens
Carex panicea
Carex pansa
Carex parallela
Carex parryana
Carex parryana ssp. hallii
Carex pauciflora
Carex paysonis
Carex peckii
Carex pedunculata
Carex pellita
Carex pelocarpa
Carex pensylvanica
Carex pensylvanica ssp. heliophila
Carex perglobosa
Carex petasata
Carex petricosa
Carex petricosa var. petricosa
Carex phaeocephala
Carex phyllomanica
Carex physorhyncha
Carex picta
Carex pityophila
Carex plana
Carex planostachys
Carex plantaginea
Carex platyphylla
Carex pluriflora
Carex podocarpa
Carex polystachya
Carex praeceptorum
Carex praegracilis
Carex prairea
Carex prasina
Carex praticola
Carex preslii
Carex pribylovensis
Carex projecta
Carex proposita
Carex pseudocyperus
Carex purpurifera
Carex radiata
Carex ramenskii
Carex rariflora
Carex raynoldsii
Carex reniformis
Carex retroflexa
Carex retrorsa
Carex richardsonii
Carex rosea
Carex rossii
Carex rostrata
Carex rotundata
Carex rufina
Carex rugosperma
Carex rupestris
Carex rupestris ssp. drummondiana
Carex sabulosa
Carex salina
Carex sartwelliana
Carex sartwellii
Carex saxatilis
Carex saxatilis ssp. laxa
Carex saximontana
Carex scabrata
Carex scabriuscula
Carex schiedeana
Carex schottii
Carex schweinitzii
Carex scirpoidea
Carex scirpoidea ssp. pseudoscirpoidea
Carex scoparia
Carex scopulorum
Carex scopulorum var. prionophylla
Carex scopulorum var. scopulorum
Carex senta
Carex seorsa
Carex serratodens
Carex sheldonii
Carex shortiana
Carex siccata
Carex silicea
Carex simulata
Carex sparganioides
Carex spectabilis
Carex specuicola
Carex spicata
Carex sprengelii
Carex squarrosa
Carex stenophylla ssp. eleocharis
Carex stenoptila
Carex sterilis
Carex stevenii
Carex stipata
Carex straminea
Carex straminiformis
Carex striata
Carex striatula
Carex stricta
Carex styloflexa
Carex stylosa
Carex subbracteata
Carex subfusca
Carex subnigricans
Carex subspathacea
Carex supina
Carex swanii
Carex sychnocephala
Carex tahoensis
Carex tenax
Carex tenera
Carex tenuiflora
Carex tetanica
Carex tetrastachya
Carex texensis
Carex thurberi
Carex tonsa
Carex tonsa var. rugosperma
Carex torreyi
Carex torta
Carex tribuloides
Carex trichocarpa
Carex triquetra
Carex trisperma
Carex tuckermanii
Carex tumulicola
Carex turbinata
Carex typhina
Carex umbellata
Carex unilateralis
Carex ursina
Carex utahensis
Carex utriculata
Carex vaginata
Carex vallicola
Carex venusta
Carex vernacula
Carex vesicaria
Carex vestita
Carex virescens
Carex viridula
Carex vulpinoidea
Carex whitneyi
Carex wiegandii
Carex willdenowii
Carex williamsii
Carex woodii
Carex wootonii
Carex xerantica
Carica papaya
Carissa carandas
Carissa edulis
Carlina vulgaris
Carlowrightia arizonica
Carlowrightia linearifolia
Carlowrightia parviflora
Carlowrightia serpyllifolia
Carlowrightia torreyana
Carminatia tenuiflora
Carpenteria californica
Carphephorus bellidifolius
Carphephorus corymbosus
Carphephorus odoratissimus
Carphephorus paniculatus
Carphephorus tomentosus
Carphochaete bigelovii
Carpinus betulus
Carpinus caroliniana
Carpobrotus chilensis
Carsonia sparsifolia
Carthamus lanatus
Carthamus oxyacanthus
Carthamus tinctorius
Carum carvi
Carum verticillatum
Carya aquatica
Carya brownii
Carya carolinae-septentrionalis
Carya cordiformis
Carya glabra
Carya illinoinensis
Carya laciniosa
Carya myristiciformis
Carya ovata
Carya ovata var. australis
Carya pallida
Carya texana
Carya tomentosa
Caryopteris clandonensis
Cascadia nuttallii
Casearia nitida
Casimiroa edulis
Casimiroa tetrameria
Cassia absus
Cassia aspera
Cassia chamaecrista
Cassia leptadenia
Cassiope lycopodioides
Cassiope mertensiana
Cassiope tetragona
Castanea dentata
Castanea mollissima
Castanea ozarkensis
Castanea pumila
Castanea sativa
Castela emoryi
Castela texana
Castilla elastica
Castilleja affinis
Castilleja affinis ssp. affinis
Castilleja affinis ssp. litoralis
Castilleja affinis ssp. neglecta
Castilleja angustifolia
Castilleja angustifolia var. dubia
Castilleja angustifolia var. flavescens
Castilleja annua
Castilleja applegatei
Castilleja applegatei ssp. martinii
Castilleja applegatei ssp. pallida
Castilleja applegatei ssp. pinetorum
Castilleja aquariensis
Castilleja arachnoidea
Castilleja arvensis
Castilleja attenuata
Castilleja austromontana
Castilleja brevilobata
Castilleja breweri
Castilleja campestris ssp. campestris
Castilleja caudata
Castilleja cervina
Castilleja chlorotica
Castilleja christii
Castilleja chromosa
Castilleja chrysantha
Castilleja cinerea
Castilleja citrina
Castilleja clokeyi
Castilleja coccinea
Castilleja covilleana
Castilleja cusickii
Castilleja densiflora ssp. densiflora
Castilleja dissitiflora
Castilleja elegans
Castilleja exserta
Castilleja exserta ssp. exserta
Castilleja flava
Castilleja flava var. flava
Castilleja flava var. rustica
Castilleja flavescens
Castilleja foliolosa
Castilleja franciscana
Castilleja galehintoniae
Castilleja genevievana
Castilleja glandulifera
Castilleja haydenii
Castilleja henryae
Castilleja hispida
Castilleja hispida ssp. brevilobata
Castilleja hololeuca
Castilleja hyetophila
Castilleja hyperborea
Castilleja indivisa
Castilleja integra
Castilleja integra var. integra
Castilleja integrifolia
Castilleja inverta
Castilleja jepsonii
Castilleja labiata
Castilleja lacera
Castilleja lanata
Castilleja lasiorhyncha
Castilleja latifolia
Castilleja lemmonii
Castilleja linariifolia
Castilleja lineariiloba
Castilleja lineata
Castilleja litoralis
Castilleja longispica
Castilleja lutescens
Castilleja martinii
Castilleja mexicana
Castilleja miniata
Castilleja miniata ssp. dixonii
Castilleja miniata ssp. elata
Castilleja miniata ssp. miniata
Castilleja minor
Castilleja minor ssp. minor
Castilleja mollis
Castilleja nana
Castilleja neglecta
Castilleja nervata
Castilleja nivea
Castilleja occidentalis
Castilleja oreopola
Castilleja pallescens
Castilleja pallescens var. inverta
Castilleja pallida
Castilleja parviflora
Castilleja parviflora var. oreopola
Castilleja parviflora var. parviflora
Castilleja patriotica
Castilleja peckiana
Castilleja peirsonii
Castilleja pilosa
Castilleja pilosa var. longispica
Castilleja pilosa var. pilosa
Castilleja pinetorum
Castilleja plagiotoma
Castilleja praeterita
Castilleja pruinosa
Castilleja puberula
Castilleja pulchella
Castilleja purpurea
Castilleja purpurea var. citrina
Castilleja raupii
Castilleja rhexifolia
Castilleja rhexiifolia
Castilleja rigida
Castilleja rubicundula ssp. lithospermoides
Castilleja rupicola
Castilleja salsuginosa
Castilleja scabrida
Castilleja scabrida var. barnebyana
Castilleja scabrida var. scabrida
Castilleja septentrionalis
Castilleja sessiliflora
Castilleja stenantha
Castilleja subinclusa
Castilleja subinclusa ssp. franciscana
Castilleja subinclusa ssp. subinclusa
Castilleja suksdorfii
Castilleja sulphurea
Castilleja tenuiflora
Castilleja tenuis
Castilleja thompsonii
Castilleja unalaschcensis
Castilleja viscidula
Castilleja wherryana
Castilleja wightii
Castilleja wootonii
Castilleja xanthotricha
Castilleja yukonis
Casuarina cristata
Casuarina cunninghamiana
Casuarina equisetifolia
Catabrosa aquatica
Catalpa speciosa
Catananche caerulea
Catapodium rigidum
Catharanthus roseus
Catoscopium nigritum
Caucalis daucoides
Caudalejeunea lehmanniana
Caulanthus amplexicaulis
Caulanthus anceps
Caulanthus barnebyi
Caulanthus cooperi
Caulanthus coulteri
Caulanthus crassicaulis
Caulanthus flavescens
Caulanthus glaucus
Caulanthus heterophyllus
Caulanthus inflatus
Caulanthus lasiophyllus
Caulanthus lemmonii
Caulanthus major
Caulanthus pilosus
Caulophyllum thalictroides
Cavicularia densa
Cayratia japonica
Ceanothus americanus
Ceanothus arboreus
Ceanothus cordulatus
Ceanothus crassifolius
Ceanothus cuneatus
Ceanothus cuneatus var. cuneatus
Ceanothus cuneatus var. rigidus
Ceanothus dentatus
Ceanothus diversifolius
Ceanothus fendleri
Ceanothus ferrisiae
Ceanothus foliosus
Ceanothus gloriosus
Ceanothus greggii
Ceanothus greggii var. perplexans
Ceanothus greggii var. vestitus
Ceanothus herbaceus
Ceanothus incanus
Ceanothus integerrimus
Ceanothus jepsonii
Ceanothus leucodermis
Ceanothus martinii
Ceanothus megacarpus
Ceanothus microphyllus
Ceanothus oliganthus
Ceanothus palmeri
Ceanothus papillosus
Ceanothus parryi
Ceanothus perplexans
Ceanothus pinetorum
Ceanothus prostratus
Ceanothus pumilus
Ceanothus purpureus
Ceanothus ramulosus
Ceanothus rigidus
Ceanothus sanguineus
Ceanothus sorediatus
Ceanothus spinosus
Ceanothus thyrsiflorus
Ceanothus tomentosus
Ceanothus velutinus
Ceanothus velutinus var. velutinus
Ceanothus verrucosus
Ceanothus vestitus
Cecropia pachystachya
Cecropia peltata
Cecropia schreberiana ssp. antillarum
Ceiba aesculifolia
Ceiba pentandra
Celastrus orbiculatus
Celastrus scandens
Celmisia spectabilis
Celosia argentea
Celosia trigyna
Celtis australis
Celtis bungeana
Celtis caucasica
Celtis iguanaea
Celtis laevigata
Celtis occidentalis
Celtis pallida
Celtis planchoniana
Celtis reticulata
Celtis sinensis
Celtis spinosa
Celtis tala
Celtis tenuifolia
Celtis trinervia
Cenchrus brownii
Cenchrus ciliaris
Cenchrus clandestinus
Cenchrus durus
Cenchrus echinatus
Cenchrus incertus
Cenchrus longispinus
Cenchrus multiflorus
Cenchrus myosuroides
Cenchrus palmeri
Cenchrus polystachios
Cenchrus setaceus
Cenchrus tribuloides
Centaurea X moncktonii
Centaurea X psammogena
Centaurea aspera
Centaurea benedicta
Centaurea cyanus
Centaurea dealbata
Centaurea depressa
Centaurea diffusa
Centaurea eriophora
Centaurea hypoleuca
Centaurea maculosa
Centaurea melitensis
Centaurea montana
Centaurea moschata
Centaurea nigra
Centaurea nigrescens
Centaurea orientalis
Centaurea ovina
Centaurea phrygia
Centaurea pratensis
Centaurea rothrockii
Centaurea scabiosa
Centaurea solstitialis
Centaurea squarrosa
Centaurea sulphurea
Centaurea triumfettii
Centaurea uniflora
Centaurea virgata
Centaurea virgata ssp. squarrosa
Centaurium beyrichii
Centaurium calycosum
Centaurium erythraea
Centaurium exaltatum
Centaurium floribundum
Centaurium maryannum
Centaurium muehlenbergii
Centaurium pulchellum
Centaurium texense
Centaurium venustum
Centella asiatica
Centranthus ruber
Centratherum punctatum
Centromadia fitchii
Centrosema virginianum
Centrostegia thurberi
Cephalanthus occidentalis
Cephalanthus salicifolius
Cephalaria alpina
Cephalaria gigantea
Cephalaria syriaca
Cephalozia affinis
Cephalozia bicuspidata
Cephalozia bicuspidata ssp. ambigua
Cephalozia bicuspidata ssp. lammersiana
Cephalozia catenulata
Cephalozia connivens
Cephalozia connivens var. compacta
Cephalozia lacinulata
Cephalozia leucantha
Cephalozia loitlesbergeri
Cephalozia lunulifolia
Cephalozia macounii
Cephalozia macrostachya
Cephalozia pleniceps
Cephaloziella arctica
Cephaloziella divaricata
Cephaloziella divaricata var. scabra
Cephaloziella elachista
Cephaloziella elegans
Cephaloziella gracillima
Cephaloziella grimsulana
Cephaloziella hampeana
Cephaloziella hyalina
Cephaloziella integerrima
Cephaloziella papillosa
Cephaloziella phyllacantha
Cephaloziella pulchella
Cephaloziella rappii
Cephaloziella rubella
Cephaloziella rubella var. elegans
Cephaloziella rubella var. rubella
Cephaloziella subdentata
Cephaloziella turneri
Cerastium aleuticum
Cerastium alpinum
Cerastium arcticum
Cerastium arvense
Cerastium arvense ssp. strictum
Cerastium axillare
Cerastium beeringianum
Cerastium beeringianum ssp. earlei
Cerastium bialynickii
Cerastium biebersteinii
Cerastium brachypetalum
Cerastium brachypodum
Cerastium cerastoides
Cerastium dichotomum
Cerastium diffusum
Cerastium fastigiatum
Cerastium fischerianum
Cerastium fontanum
Cerastium fontanum ssp. vulgare
Cerastium glomeratum
Cerastium latifolium
Cerastium maximum
Cerastium nutans
Cerastium nutans var. brachypodum
Cerastium pauciflorum
Cerastium pumilum
Cerastium regelii
Cerastium semidecandrum
Cerastium strictum
Cerastium texanum
Cerastium tomentosum
Cerastium velutinum
Cerasus mahaleb
Cerasus pensylvanica
Cerasus pumila
Cerasus pumila ssp. besseyi
Ceratocephala orthoceras
Ceratochloa carinata
Ceratodon purpureus
Ceratodon purpureus var. purpureus
Ceratodon purpureus var. rotundifolius
Ceratodon stenocarpus
Ceratolejeunea confusa
Ceratolejeunea laetefusca
Ceratophyllum demersum
Ceratophyllum echinatum
Ceratophyllum submersum
Ceratopteris richardii
Ceratopteris thalictroides
Cercidiphyllum japonicum
Cercidium macrum
Cercidium texanum
Cercis canadensis
Cercis occidentalis
Cercocarpus betuloides
Cercocarpus breviflorus
Cercocarpus intricatus
Cercocarpus ledifolius
Cercocarpus ledifolius var. intricatus
Cercocarpus minutiflorus
Cercocarpus montanus
Cereus hexagonus
Cerinthe major
Cestrum aurantiacum
Cestrum diurnum
Cestrum elegans
Cestrum fasciculatum
Cestrum nocturnum
Cestrum parqui
Cevallia sinuata
Chaenactis alpina
Chaenactis carphoclinia
Chaenactis cusickii
Chaenactis douglasii
Chaenactis douglasii var. alpina
Chaenactis douglasii var. douglasii
Chaenactis evermannii
Chaenactis fremontii
Chaenactis glabriuscula
Chaenactis macrantha
Chaenactis nevadensis
Chaenactis nevii
Chaenactis santolinoides
Chaenactis stevioides
Chaenactis suffrutescens
Chaenactis tanacetifolia
Chaenactis xantiana
Chaenomeles japonica
Chaenomeles sinensis
Chaenomeles speciosa
Chaenorhinum minus
Chaenorrhinum minus
Chaerophyllum aromaticum
Chaerophyllum bulbosum
Chaerophyllum procumbens
Chaerophyllum tainturieri
Chaerophyllum temulum
Chaerophyllum texanum
Chaetadelpha wheeleri
Chaetium bromoides
Chaetocolea palmata
Chaetopappa asteroides
Chaetopappa aurea
Chaetopappa bellidifolia
Chaetopappa bellioides
Chaetopappa effusa
Chaetopappa elegans
Chaetopappa ericoides
Chaetopappa parryi
Chamaebatia australis
Chamaebatia foliolosa
Chamaebatiaria millefolium
Chamaechaenactis scaposa
Chamaecrista absus var. absus
Chamaecrista fasciculata
Chamaecrista fasciculata var. fasciculata
Chamaecrista greggii
Chamaecrista nictitans
Chamaecrista nictitans var. aspera
Chamaecrista nictitans var. leptadenia
Chamaecrista robusta
Chamaecrista rotundifolia
Chamaedaphne calyculata
Chamaemelum fuscatum
Chamaepericlymenum canadense
Chamaerhodos erecta
Chamaerhodos erecta ssp. nuttallii
Chamaesaracha coniodes
Chamaesaracha conioides
Chamaesaracha coronopus
Chamaesaracha crenata
Chamaesaracha edwardsiana
Chamaesaracha pallida
Chamaesaracha sordida
Chamaesaracha villosa
Chamaesyce abramsiana
Chamaesyce acuta
Chamaesyce adenoptera
Chamaesyce albomarginata
Chamaesyce arizonica
Chamaesyce blodgettii
Chamaesyce capitellata
Chamaesyce carunculata
Chamaesyce chaetocalyx
Chamaesyce cinerascens
Chamaesyce cordifolia
Chamaesyce degeneri
Chamaesyce fendleri
Chamaesyce florida
Chamaesyce geyeri
Chamaesyce glomerifera
Chamaesyce glyptosperma
Chamaesyce gracillima
Chamaesyce hillebrandii
Chamaesyce hirta
Chamaesyce hooveri
Chamaesyce hypericifolia
Chamaesyce hyssopifolia
Chamaesyce indivisa
Chamaesyce lasiocarpa
Chamaesyce lata
Chamaesyce melanadenia
Chamaesyce mendezii
Chamaesyce micromera
Chamaesyce missurica
Chamaesyce nutans
Chamaesyce nuttallii
Chamaesyce ocellata
Chamaesyce ophthalmica
Chamaesyce parishii
Chamaesyce parryi
Chamaesyce pediculifera
Chamaesyce petaloidea
Chamaesyce polycarpa
Chamaesyce polygonifolia
Chamaesyce preslii
Chamaesyce prostrata
Chamaesyce revoluta
Chamaesyce serpens
Chamaesyce serpyllifolia
Chamaesyce serrula
Chamaesyce simulans
Chamaesyce skottsbergii
Chamaesyce stictospora
Chamaesyce supina
Chamaesyce thymifolia
Chamaesyce vallis-mortae
Chamaesyce vermiculata
Chamaesyce villifera
Chamerion angustifolium
Chamerion angustifolium ssp. circumvagum
Chamerion danielsii
Chamerion latifolium
Chamerion subdentatum
Chamissoa altissima
Chandonanthus cavallii
Chandonanthus filiformis
Chandonanthus hirtellus
Chaptalia nutans
Chaptalia texana
Chaptalia tomentosa
Charpentiera obovata
Chasmanthium latifolium
Chasmanthium laxum
Chasmanthium laxum ssp. sessiliflorum
Chasmanthium sessiliflorum
Cheilanthes aemula
Cheilanthes alabamensis
Cheilanthes angustifolia
Cheilanthes bonariensis
Cheilanthes clevelandii
Cheilanthes cooperae
Cheilanthes covillei
Cheilanthes eatonii
Cheilanthes fendleri
Cheilanthes féei
Cheilanthes gracillima
Cheilanthes hirsuta
Cheilanthes intertexta
Cheilanthes kaulfussii
Cheilanthes lanosa
Cheilanthes lendigera
Cheilanthes lindheimeri
Cheilanthes marginata
Cheilanthes microphylla
Cheilanthes newberryi
Cheilanthes notholaenoides
Cheilanthes parryi
Cheilanthes pringlei
Cheilanthes pyramidalis
Cheilanthes siliquosa
Cheilanthes tenuifolia
Cheilanthes tomentosa
Cheilanthes villosa
Cheilanthes viscida
Cheilanthes wootonii
Cheilanthes wrightii
Cheilanthes yavapensis
Cheilocostus speciosus
Cheilolejeunea clausa
Cheilolejeunea decidua
Cheilolejeunea polyantha
Cheilolejeunea rigidula
Cheirodendron helleri
Cheirodendron trigynum
Cheirodendron trigynum ssp. helleri
Chelidonium majus
Chelone glabra
Chelone lyonii
Chelone obliqua
Chenopodium album
Chenopodium atrovirens
Chenopodium berlandieri
Chenopodium berlandieri var. boscianum
Chenopodium berlandieri var. bushianum
Chenopodium berlandieri var. zschackei
Chenopodium bonus-henricus
Chenopodium botrys
Chenopodium californicum
Chenopodium capitatum
Chenopodium capitatum var. parvicapitatum
Chenopodium chenopodioides
Chenopodium cycloides
Chenopodium desiccatum
Chenopodium ficifolium
Chenopodium foliosum
Chenopodium fremontii
Chenopodium glaucum
Chenopodium hians
Chenopodium hircinum
Chenopodium incanum
Chenopodium leptophyllum
Chenopodium macrospermum
Chenopodium missouriense
Chenopodium multifidum
Chenopodium murale
Chenopodium neomexicanum
Chenopodium nevadense
Chenopodium oahuense
Chenopodium opulifolium
Chenopodium polyspermum
Chenopodium pratericola
Chenopodium quinoa
Chenopodium rubrum
Chenopodium simplex
Chenopodium strictum
Chenopodium subglabrum
Chenopodium urbicum
Chenopodium vulvaria
Chenopodium watsonii
Chilopsis linearis
Chiloscyphus fragilis
Chiloscyphus pallescens
Chiloscyphus pallescens var. fragilis
Chiloscyphus polyanthos
Chiloscyphus polyanthos var. rivularis
Chiloscyphus rivularis
Chimaphila maculata
Chimaphila menziesii
Chimaphila umbellata
Chimaphila umbellata ssp. occidentalis
Chiococca alba
Chionanthus virginicus
Chionophila jamesii
Chionophila tweedyi
Chloracantha spinosa
Chloris X subdolichostachya
Chloris andropogonoides
Chloris ciliata
Chloris cucullata
Chloris submutica
Chloris truncata
Chloris verticillata
Chloris virgata
Chlorocrepis albiflora
Chlorocrepis fendleri
Chlorocrepis tristis ssp. gracilis
Chlorogalum pomeridianum
Chloropyron maritimum ssp. canescens
Chloropyron maritimum ssp. maritimus
Chloropyron molle ssp. molle
Chloropyron tecopense
Chondrilla juncea
Chondrophylla aquatica
Chondrophylla nutans
Chondrophylla prostrata
Chondrosum barbatum
Chondrosum eriopodum
Chondrosum gracile
Chondrosum hirsutum
Chondrosum parryi
Chondrosum prostratum
Chonecolea doellingeri
Chorisiva nevadensis
Chorispora tenella
Chorizanthe angustifolia
Chorizanthe brevicornu
Chorizanthe brevicornu var. brevicornu
Chorizanthe clevelandii
Chorizanthe corrugata
Chorizanthe cuspidata
Chorizanthe diffusa
Chorizanthe douglasii
Chorizanthe fimbriata
Chorizanthe leptotheca
Chorizanthe membranacea
Chorizanthe obovata
Chorizanthe polygonoides
Chorizanthe procumbens
Chorizanthe pungens
Chorizanthe rectispina
Chorizanthe rigida
Chorizanthe spinosa
Chorizanthe staticoides
Chorizanthe stellulata
Chorizanthe valida
Chorizanthe ventricosa
Chorizanthe watsonii
Chorizanthe xanti
Chromolaena bigelovii
Chromolaena odorata
Chrozophora tinctoria
Chrysactinia mexicana
Chrysanthemum arcticum
Chrysanthemum carinatum
Chrysanthemum coccineum
Chrysanthemum coronarium
Chrysanthemum frutescens
Chrysanthemum indicum
Chrysanthemum segetum
Chryso-hypnum diminutivum
Chrysobalanus icaco
Chrysogonum virginianum
Chrysolepis chrysophylla
Chrysolepis sempervirens
Chrysoma pauciflosculosa
Chrysophyllum cainito
Chrysophyllum oliviforme
Chrysopsis graminifolia
Chrysopsis mariana
Chrysopsis nervosa
Chrysosplenium alternifolium
Chrysosplenium americanum
Chrysosplenium glechomifolium
Chrysosplenium iowense
Chrysosplenium tetrandrum
Chrysosplenium wrightii
Chrysothamnus depressus
Chrysothamnus gramineus
Chrysothamnus greenei
Chrysothamnus greenei ssp. filifolius
Chrysothamnus greenei ssp. greenei
Chrysothamnus humilis
Chrysothamnus linifolius
Chrysothamnus nauseosus
Chrysothamnus nauseosus ssp. bigelovii
Chrysothamnus nauseosus ssp. consimilis
Chrysothamnus nauseosus ssp. graveolens
Chrysothamnus nauseosus ssp. hololeucus
Chrysothamnus nauseosus ssp. junceus
Chrysothamnus nauseosus ssp. leiospermus
Chrysothamnus nauseosus ssp. nauseosus
Chrysothamnus nauseosus ssp. texensis
Chrysothamnus nauseosus var. graveolens
Chrysothamnus nauseosus var. linearifolius
Chrysothamnus parryi
Chrysothamnus parryi ssp. affinis
Chrysothamnus parryi ssp. attenuatus
Chrysothamnus parryi ssp. howardii
Chrysothamnus parryi ssp. parryi
Chrysothamnus parryi var. howardii
Chrysothamnus pulchellus
Chrysothamnus pulchellus ssp. baileyi
Chrysothamnus stylosus
Chrysothamnus vaseyi
Chrysothamnus viscidiflorus
Chrysothamnus viscidiflorus ssp. axillaris
Chrysothamnus viscidiflorus ssp. lanceolatus
Chrysothamnus viscidiflorus ssp. pumilus
Chrysothamnus viscidiflorus ssp. stenophyllus
Chrysothamnus viscidiflorus ssp. viscidiflorus
Chusquea serrulata
Chylismia arenaria
Chylismia atwoodii
Chylismia brevipes
Chylismia cardiophylla
Chylismia claviformis ssp. claviformis
Chylismia eastwoodiae
Chylismia heterochroma
Chylismia multijuga
Chylismia munzii
Chylismia parryi
Chylismia scapoidea
Chylismia walkeri
Chylismiella pterosperma
Cibotium arachnoideum
Cibotium barometz
Cibotium chamissoi
Cibotium regale
Cicer arietinum
Cichorium endivia
Cichorium intybus
Cicuta bolanderi
Cicuta bulbifera
Cicuta douglasii
Cicuta maculata
Cicuta mexicana
Cicuta occidentalis
Cicuta virosa
Ciliaria austromontana
Ciliaria funstonii
Cinclidium arcticum
Cinclidium latifolium
Cinclidium stygium
Cinclidium subrotundum
Cinna arundinacea
Cinna latifolia
Circaea alpina
Circaea alpina ssp. alpina
Circaea alpina ssp. pacifica
Circaea canadensis
Circaea lutetiana
Circaea quadrisulcata
Cirriphyllum cirrosum
Cirriphyllum piliferum
Cirsium acanthodontum
Cirsium acaule
Cirsium altissimum
Cirsium andersonii
Cirsium andrewsii
Cirsium arizonicum
Cirsium arizonicum var. arizonicum
Cirsium arizonicum var. rothrockii
Cirsium arvense
Cirsium barnebyi
Cirsium brevistylum
Cirsium calcareum
Cirsium californicum
Cirsium callilepis
Cirsium campylon
Cirsium canescens
Cirsium canum
Cirsium carolinianum
Cirsium centaureae
Cirsium clavatum var. americanum
Cirsium cymosum
Cirsium discolor
Cirsium douglasii
Cirsium douglasii var. breweri
Cirsium drummondii
Cirsium eatonii
Cirsium eatonii var. clokeyi
Cirsium eatonii var. eriocephalum
Cirsium eatonii var. hesperium
Cirsium eatonii var. murdockii
Cirsium edule
Cirsium engelmannii
Cirsium flodmanii
Cirsium foliosum
Cirsium fontinale
Cirsium grahamii
Cirsium helenioides
Cirsium hesperium
Cirsium hillii
Cirsium hookerianum
Cirsium horridulum
Cirsium inamoenum
Cirsium inamoenum var. inamoenum
Cirsium japonicum
Cirsium kamtschaticum
Cirsium lecontei
Cirsium mexicanum
Cirsium mohavense
Cirsium muticum
Cirsium neomexicanum
Cirsium nuttallii
Cirsium occidentale
Cirsium ochrocentrum
Cirsium ochrocentrum ssp. martinii
Cirsium ownbeyi
Cirsium pallidum
Cirsium palustre
Cirsium parryi
Cirsium perplexans
Cirsium pulcherrimum
Cirsium pulcherrimum var. aridum
Cirsium pulcherrimum var. pulcherrimum
Cirsium pumilum
Cirsium quercetorum
Cirsium remotifolium
Cirsium repandum
Cirsium rhothophilum
Cirsium rydbergii
Cirsium scariosum
Cirsium scariosum var. americanum
Cirsium scariosum var. scariosum
Cirsium scopulorum
Cirsium spinosissimum
Cirsium texanum
Cirsium tracyi
Cirsium turneri
Cirsium undulatum
Cirsium undulatum var. undulatum
Cirsium virginianum
Cirsium vulgare
Cirsium wheeleri
Cissampelos pareira
Cissus rhombifolia
Cissus trifoliata
Cissus verticillata
Cistanthe ambigua
Cistanthe monandra
Cistanthe parryi
Cistanthe quadripetala
Cistanthe rosea
Cistanthe umbellata
Cistus incanus
Cistus ladanifer
Cistus monspeliensis
Cistus psilosepalus
Cistus salviifolius
Citharexylum berlandieri
Citharexylum brachyanthum
Citharexylum caudatum
Citrullus colocynthis
Citrullus lanatus
Citrus X aurantium
Cladium californicum
Cladium jamaicense
Cladium mariscoides
Cladopodiella fluitans
Cladopodiella francisci
Cladothrix lanuginosa
Cladrastis kentukea
Claopodium bolanderi
Claopodium crispifolium
Claopodium pellucinerve
Claopodium whippleanum
Claoxylon sandwicense
Clarkia affinis
Clarkia amoena
Clarkia arcuata
Clarkia biloba
Clarkia bottae
Clarkia concinna
Clarkia cylindrica
Clarkia davyi
Clarkia delicata
Clarkia dudleyana
Clarkia epilobioides
Clarkia franciscana
Clarkia gracilis
Clarkia heterandra
Clarkia lassenensis
Clarkia lingulata
Clarkia modesta
Clarkia nitens
Clarkia prostrata
Clarkia pulchella
Clarkia purpurea
Clarkia purpurea ssp. quadrivulnera
Clarkia purpurea ssp. viminea
Clarkia quadrivulnera
Clarkia rhomboidea
Clarkia rubicunda
Clarkia similis
Clarkia speciosa
Clarkia speciosa ssp. nitens
Clarkia unguiculata
Clarkia viminea
Clarkia williamsonii
Clarkia xantiana
Clasmatodon parvulus
Clausena lansium
Claytonia acutifolia
Claytonia arctica
Claytonia arenicola
Claytonia caroliniana
Claytonia cordifolia
Claytonia diffusa
Claytonia exigua
Claytonia gypsophiloides
Claytonia lanceolata
Claytonia megarhiza
Claytonia multiscapa
Claytonia parviflora
Claytonia perfoliata
Claytonia perfoliata ssp. mexicana
Claytonia perfoliata ssp. perfoliata
Claytonia rosea
Claytonia rubra
Claytonia sarmentosa
Claytonia scammaniana
Claytonia sibirica
Claytonia tuberosa
Claytonia virginica
Cleistesiopsis divaricata
Clematis albicoma
Clematis columbiana var. columbiana
Clematis crispa
Clematis dioica
Clematis drummondii
Clematis fremontii
Clematis hirsutissima var. hirsutissima
Clematis hirsutissima var. scottii
Clematis lasiantha
Clematis ligusticifolia
Clematis occidentalis var. occidentalis
Clematis ochroleuca
Clematis orientalis
Clematis pauciflora
Clematis pitcheri
Clematis pitcheri var. pitcheri
Clematis reticulata
Clematis terniflora
Clematis versicolor
Clematis verticillaris
Clematis viorna
Clematis virginiana
Clementsia rhodantha
Cleome gynandra
Cleome houtteana
Cleome jonesii
Cleome lutea
Cleome multicaulis
Cleome ornithopodioides
Cleome platycarpa
Cleome rutidosperma
Cleome serrulata
Cleome sparsifolia
Cleomella angustifolia
Cleomella brevipes
Cleomella hillmanii
Cleomella hillmanii var. goodrichii
Cleomella longipes
Cleomella macbrideana
Cleomella obtusifolia
Cleomella palmerana
Cleomella palmeriana
Cleomella parviflora
Cleomella plocasperma
Clermontia clermontioides
Clermontia kakeana
Clermontia parviflora
Clerodendrum chinense
Clerodendrum thomsoniae
Clerodendrum trichotomum
Clethra acuminata
Clethra alnifolia
Cleyera japonica
Clibadium surinamense
Cliftonia monophylla
Climacium americanum
Climacium dendroides
Climacium kindbergii
Clinopodium acinos
Clinopodium ashei
Clinopodium brownei
Clinopodium carolinianum
Clinopodium chandleri
Clinopodium coccineum
Clinopodium dentatum
Clinopodium glabellum
Clinopodium glabrum
Clinopodium gracile
Clinopodium nepeta ssp. glandulosum
Clinopodium vulgare
Clintonia andrewsiana
Clintonia borealis
Clintonia umbellulata
Clintonia uniflora
Clitoria mariana
Clusia rosea
Cnidium cnidiifolium
Cnidium monnieri
Cnidoscolus angustidens
Cnidoscolus stimulosus
Cnidoscolus texanus
Cnidoscolus urens
Cnidoscolus urens var. stimulosus
Coccoloba venosa
Cocculus carolinus
Cocculus diversifolius
Cochemiea maritima
Cochlearia danica
Cochlearia groenlandica
Cochlearia officinalis
Cochlidium serrulatum
Coeloglossum viride
Coeloglossum viride ssp. bracteatum
Coincya monensis ssp. recurvata
Cojoba arborea
Cojoba graciliflora
Cola acuminata
Colchicum autumnale
Coleataenia anceps
Coleataenia anceps ssp. rhizomata
Coleataenia longifolia ssp. elongata
Coleataenia longifolia ssp. longifolia
Coleataenia tenera
Coleogyne ramosissima
Collinsia bartsiifolia
Collinsia childii
Collinsia concolor
Collinsia corymbosa
Collinsia grandiflora
Collinsia greenei
Collinsia heterophylla
Collinsia linearis
Collinsia multicolor
Collinsia parviflora
Collinsia rattanii
Collinsia sparsiflora
Collinsia tinctoria
Collinsia torreyi
Collinsia torreyi var. wrightii
Collinsia verna
Collinsia violacea
Collinsia wrightii
Collinsonia canadensis
Collinsonia verticillata
Collomia debilis
Collomia diversifolia
Collomia grandiflora
Collomia heterophylla
Collomia larsenii
Collomia linearis
Collomia macrocalyx
Collomia mazama
Collomia tenella
Collomia tinctoria
Collomia tracyi
Collomia wilkenii
Colocasia esculenta
Cologania angustifolia
Cologania obovata
Cololejeunea biddlecomiae
Cololejeunea cardiocarpa
Cololejeunea macounii
Cololejeunea minutissima
Cololejeunea setiloba
Colubrina greggii
Colubrina stricta
Colubrina texensis
Colutea arborescens
Comandra californica
Comandra livida
Comandra richardsiana
Comandra umbellata
Comandra umbellata ssp. californica
Comandra umbellata ssp. pallida
Comandra umbellata ssp. umbellata
Comarostaphylis diversifolia
Comarum palustre
Comastoma tenellum
Combretum indicum
Commelina benghalensis
Commelina caroliniana
Commelina coelestis
Commelina communis
Commelina dianthifolia
Commelina diffusa
Commelina diffusa var. diffusa
Commelina erecta
Commelina erecta var. angustifolia
Commelina longicaulis
Commelina nudiflora
Commelina virginica
Commicarpus scandens
Comptonia peregrina
Conardia compacta
Condalia correllii
Condalia ericoides
Condalia globosa
Condalia hookeri var. hookeri
Condalia lycioides
Condalia mexicana
Condalia obovata
Condalia spathulata
Conimitella williamsii
Coniogramme pilosa
Conioselinum chinense
Conioselinum mexicanum
Conioselinum scopulorum
Conium maculatum
Conocarpus erectus
Conocephalum conicum
Conocephalum supradecompositum
Conoclinium dissectum
Conopholis alpina
Conopholis alpina var. mexicana
Conopholis americana
Conosilene conica
Conostomum tetragonum
Conradina canescens
Conringia orientalis
Consolida ajacis
Constancea nevinii
Convallaria majalis
Convolvulus althaeoides
Convolvulus arvensis
Convolvulus equitans
Convolvulus erubescens
Convolvulus fulcratus
Convolvulus malacophyllus
Convolvulus nyctagineus
Convolvulus pilosellifolius
Convolvulus purshianus
Convolvulus scammonia
Convolvulus tricolor
Conyza bonariensis
Conyza canadensis
Conyza coulteri
Conyza filaginoides
Conyza floribunda
Conyza ramosissima
Conyza schiedeana
Coptis aspleniifolia
Coptis laciniata
Coptis occidentalis
Coptis trifolia
Corallorhiza maculata
Corallorhiza mertensiana
Corallorhiza odontorhiza
Corallorhiza striata
Corallorhiza trifida
Corallorhiza wisteriana
Corchorus aestuans
Corchorus capsularis
Corchorus hirsutus
Corchorus hirtus
Corchorus olitorius
Corchorus siliquosus
Cordia boissieri
Cordia collococca
Cordia dentata
Cordia globosa
Cordia parvifolia
Cordia podocephala
Cordia subcordata
Cordylanthus canescens
Cordylanthus capitatus
Cordylanthus compactus
Cordylanthus eremicus
Cordylanthus kingii
Cordylanthus laxiflorus
Cordylanthus maritimus
Cordylanthus mollis
Cordylanthus nevinii
Cordylanthus orcuttianus
Cordylanthus parviflorus
Cordylanthus pilosus
Cordylanthus ramosus
Cordylanthus rigidus
Cordylanthus rigidus ssp. rigidus
Cordylanthus tecopensis
Cordylanthus tenuis
Cordylanthus tenuis ssp. viscidus
Cordylanthus viscidus
Cordylanthus wrightii
Cordylanthus wrightii ssp. tenuifolius
Cordyline australis
Cordyline fruticosa
Corema conradii
Coreocarpus arizonicus
Coreopsis auriculata
Coreopsis basalis
Coreopsis bigelovii
Coreopsis californica
Coreopsis douglasii
Coreopsis gigantea
Coreopsis gladiata
Coreopsis grandiflora
Coreopsis integrifolia
Coreopsis intermedia
Coreopsis lanceolata
Coreopsis major
Coreopsis maritima
Coreopsis nudata
Coreopsis nuecensis
Coreopsis palmata
Coreopsis pubescens
Coreopsis rosea
Coreopsis tinctoria
Coreopsis tripteris
Coreopsis verticillata
Corethrogyne filaginifolia
Coriandrum sativum
Coriflora hirsutissima
Coriflora pitcheri
Coriflora scottii
Corispermum americanum
Corispermum hyssopifolium
Corispermum navicula
Corispermum nitidum
Corispermum villosum
Corispermum welshii
Cornus amomum ssp. amomum
Cornus amomum ssp. obliqua
Cornus asperifolia
Cornus canadensis
Cornus florida
Cornus foemina
Cornus kousa
Cornus mas
Cornus nuttallii
Cornus obliqua
Cornus sanguinea
Cornus sericea ssp. sericea
Cornus stolonifera
Cornus suecica
Coronaria coriacea
Corsinia coriandrina
Cortaderia selloana
Corydalis aquae-gelidae
Corydalis aurea
Corydalis aurea ssp. aurea
Corydalis aurea ssp. occidentalis
Corydalis campestris
Corydalis caseana
Corydalis caseana ssp. brandegei
Corydalis crystallina
Corydalis curvisiliqua
Corydalis curvisiliqua ssp. occidentalis
Corydalis flavula
Corydalis halei
Corydalis micrantha
Corydalis micrantha ssp. australis
Corydalis pauciflora
Corydalis sempervirens
Corylus americana
Corylus avellana
Corylus cornuta
Corylus cornuta ssp. californica
Corynopuntia reflexispina
Coryphantha compacta
Coryphantha duncanii
Coryphantha missouriensis
Coryphantha organensis
Coryphantha pallida
Coryphantha robustispina ssp. scheeri
Coryphantha scheeri
Coryphantha sneedii
Coryphantha vivipara
Coryphantha vivipara var. arizonica
Coryphantha vivipara var. radiosa
Coryphantha vivipara var. vivipara
Coscinodon calyptratus
Coscinodon cribrosus
Cosmos bipinnatus
Cosmos parviflorus
Cosmos sulphureus
Costus scaber
Costus spicatus
Costus villosissimus
Cotinus coggygria
Cotinus obovatus
Cotoneaster lucidus
Cottea pappophoroides
Cottsia gracilis
Cotula australis
Cotula coronopifolia
Coursetia axillaris
Coursetia caribaea
Coursetia caribaea var. caribaea
Coursetia caribaea var. sericea
Coursetia glabella
Coursetia glandulosa
Cracca caribaea
Cracca sericea
Crambe maritima
Crassocephalum crepidioides
Crassocephalum vitellinum
Crassula aquatica
Crassula connata
Crassula sieberiana
Crassula tillaea
Crataegus ambigua
Crataegus berberifolia var. engelmannii
Crataegus brachyacantha
Crataegus chrysocarpa
Crataegus chrysocarpa var. faxonii
Crataegus chrysocarpa var. piperi
Crataegus coccinea var. coccinea
Crataegus crus-galli
Crataegus douglasii
Crataegus engelmannii
Crataegus erythropoda
Crataegus flabellata
Crataegus flava
Crataegus irrasa
Crataegus laurentiana
Crataegus macracantha
Crataegus macracantha var. occidentalis
Crataegus macrosperma
Crataegus margarettae
Crataegus marshallii
Crataegus mexicana
Crataegus mollis
Crataegus opaca
Crataegus pedicellata
Crataegus pennsylvanica
Crataegus phaenopyrum
Crataegus punctata
Crataegus rivularis
Crataegus saligna
Crataegus sheridana
Crataegus spathulata
Crataegus submollis
Crataegus succulenta
Crataegus tomentosa
Crataegus tracyi
Crataegus uniflora
Crataegus viridis
Crataegus wootoniana
Cratoneuron filicinum
Crepis acuminata
Crepis atribarba
Crepis biennis
Crepis bulbosa
Crepis bursifolia
Crepis capillaris
Crepis elegans
Crepis foetida
Crepis intermedia
Crepis japonica
Crepis modocensis
Crepis nana
Crepis nicaeensis
Crepis paludosa
Crepis pannonica
Crepis pulchra
Crepis setosa
Crepis tectorum
Crepis vesicaria
Crescentia cujete
Cressa truxillensis
Crinum americanum
Critesion brachyantherum
Critesion californicum
Critesion glaucum
Critesion hystrix
Critesion jubatum
Critesion pusillum
Crocanthemum bicknellii
Croptilon divaricatum
Crossidium aberrans
Crossidium crassinerve
Crossidium squamiferum
Crossopetalum rhacoma
Crossosoma bigelovii
Crossosoma californicum
Crossotolejeunea bermudiana
Crotalaria brevidens
Crotalaria cajanifolia
Crotalaria incana
Crotalaria lanceolata
Crotalaria longirostrata
Crotalaria pallida var. obovata
Crotalaria pumila
Crotalaria purshii
Crotalaria rotundifolia
Crotalaria sagittalis
Crotalaria spectabilis
Crotalaria stipularia
Crotalaria striata
Crotalaria verrucosa
Crotalaria vitellina
Croton alabamensis
Croton argenteus
Croton argyranthemus
Croton bonplandianus
Croton californicus
Croton capitatus
Croton cortesianus
Croton corymbulosus
Croton dioicus
Croton fruticulosus
Croton glandulosus
Croton humilis
Croton incanus
Croton lindheimeri
Croton lindheimerianus
Croton linearis
Croton lobatus
Croton michauxii var. elliptica
Croton microcarpus
Croton monanthogynus
Croton parksii
Croton pottsii
Croton pottsii var. pottsii
Croton punctatus
Croton setiger
Croton sonorae
Croton suaveolens
Croton texensis
Croton tiglium
Croton wigginsii
Crucianella angustifolia
Cruciata pedemontana
Crumia latifolia
Crunocallis chamissoi
Crupina vulgaris
Crusea diversifolia
Cryphaea filiformis
Cryphaea glomerata
Cryphaea nervosa
Crypsis alopecuroides
Crypsis schoenoides
Crypsis vaginiflora
Cryptantha abata
Cryptantha affinis
Cryptantha albida
Cryptantha ambigua
Cryptantha angustifolia
Cryptantha bakeri
Cryptantha barbigera
Cryptantha breviflora
Cryptantha caespitosa
Cryptantha cana
Cryptantha celosioides
Cryptantha cinerea
Cryptantha cinerea var. cinerea
Cryptantha cinerea var. jamesii
Cryptantha cinerea var. pustulosa
Cryptantha circumscissa
Cryptantha clevelandii
Cryptantha clevelandii var. florosa
Cryptantha confertiflora
Cryptantha corollata
Cryptantha costata
Cryptantha crassisepala
Cryptantha crassisepala var. crassisepala
Cryptantha crassisepala var. elachantha
Cryptantha crinita
Cryptantha crymophila
Cryptantha decipiens
Cryptantha dumetorum
Cryptantha echinella
Cryptantha elata
Cryptantha fendleri
Cryptantha flaccida
Cryptantha flava
Cryptantha flavoculata
Cryptantha fulvocanescens var. nitida
Cryptantha glomeriflora
Cryptantha gracilis
Cryptantha gypsophila
Cryptantha hispidissima
Cryptantha holoptera
Cryptantha humilis
Cryptantha intermedia
Cryptantha interrupta
Cryptantha kelseyana
Cryptantha leiocarpa
Cryptantha longiflora
Cryptantha maritima
Cryptantha mensana
Cryptantha mexicana
Cryptantha micrantha
Cryptantha micrantha var. micrantha
Cryptantha micromeres
Cryptantha microstachys
Cryptantha minima
Cryptantha muricata
Cryptantha nemaclada
Cryptantha nevadensis
Cryptantha nubigena
Cryptantha osterhoutii
Cryptantha oxygona
Cryptantha paradoxa
Cryptantha pterocarya
Cryptantha pusilla
Cryptantha racemosa
Cryptantha rattanii
Cryptantha recurvata
Cryptantha rollinsii
Cryptantha scoparia
Cryptantha sericea
Cryptantha setosissima
Cryptantha shackletteana
Cryptantha simulans
Cryptantha sparsiflora
Cryptantha spiculifera
Cryptantha stricta
Cryptantha texana
Cryptantha thompsonii
Cryptantha thyrsiflora
Cryptantha torreyana
Cryptantha tumulosa
Cryptantha utahensis
Cryptantha virgata
Cryptantha virginensis
Cryptantha watsonii
Cryptantha weberi
Cryptogramma acrostichoides
Cryptogramma cascadensis
Cryptogramma crispa
Cryptogramma sitchensis
Cryptogramma stelleri
Cryptomitrium tenerum
Cryptotaenia canadensis
Cryptotaenia japonica
Ctenidium malacodes
Ctenidium molluscum
Ctenitis effusa
Ctenitis nemorosa
Ctenitis sloanei
Ctenitis subglandulosa
Ctenitis submarginalis
Ctenium aromaticum
Cucurbita argyrosperma
Cucurbita digitata
Cucurbita foetidissima
Cucurbita palmata
Cucurbita pepo
Culcita macrocarpa
Cunila origanoides
Cuphea carthagenensis
Cuphea hyssopifolia
Cuphea procumbens
Cuphea viscosissima
Cuphea wrightii
Curcuma longa
Cuscuta americana
Cuscuta applanata
Cuscuta approximata
Cuscuta campestris
Cuscuta cephalanthi
Cuscuta compacta
Cuscuta cuspidata
Cuscuta denticulata
Cuscuta denticulata var. denticulata
Cuscuta epilinum
Cuscuta epithymum
Cuscuta epithymum ssp. approximata
Cuscuta europaea
Cuscuta glabrior
Cuscuta glomerata
Cuscuta gronovii
Cuscuta gronovii var. gronovii
Cuscuta indecora var. indecora
Cuscuta leptantha
Cuscuta mitriformis
Cuscuta nevadensis
Cuscuta obtusiflora
Cuscuta occidentalis
Cuscuta pentagona
Cuscuta rostrata
Cuscuta runyonii
Cuscuta salina
Cuscuta sandwichiana
Cuscuta squamata
Cuscuta subinclusa
Cuscuta umbellata
Cuscuta umbrosa
Cusickiella douglasii
Cusickiella quadricostata
Cyanea sessilifolia
Cyathea andina
Cyathea arborea
Cyathea australis
Cyathea colensoi
Cyathea contaminans
Cyathea cubensis
Cyathea cunninghamii
Cyathea dealbata
Cyathea fulva
Cyathea horrida
Cyathea lepifera
Cyathea lunulata
Cyathea medullaris
Cyathea metteniana
Cyathea multiflora
Cyathea parvula
Cyathea princeps
Cyathea pubescens
Cyathea smithii
Cyathea tripinnata
Cyathea weatherbyana
Cyclachaena xanthifolia
Cyclachaena xanthiifolia
Cycladenia humilis
Cyclanthera dissecta
Cyclanthera pedata
Cyclodictyon varians
Cycloloma atriplicifolium
Cyclosorus dentatus
Cyclosorus sandwicensis
Cyclospermum leptophyllum
Cydista aequinoctialis
Cydista diversifolia
Cydonia oblonga
Cylactis arctica
Cylactis arctica ssp. acaulis
Cylactis pubescens
Cylindropuntia acanthocarpa
Cylindropuntia acanthocarpa ssp. coloradensis
Cylindropuntia arbuscula
Cylindropuntia bigelovii
Cylindropuntia echinocarpa
Cylindropuntia imbricata
Cylindropuntia kleiniae
Cylindropuntia leptocaulis
Cylindropuntia prolifera
Cylindropuntia ramosissima
Cylindropuntia spinosior
Cylindropuntia thurberi
Cylindropuntia tunicata
Cylindropuntia versicolor
Cylindropuntia whipplei
Cylindropyrum cylindricum
Cymbalaria muralis
Cymophyllus fraserianus
Cymopterus aboriginum
Cymopterus acaulis
Cymopterus basalticus
Cymopterus beckii
Cymopterus bulbosus
Cymopterus cinerarius
Cymopterus constancei
Cymopterus corrugatus
Cymopterus coulteri
Cymopterus davidsonii
Cymopterus davisii
Cymopterus douglassii
Cymopterus duchesnensis
Cymopterus fendleri
Cymopterus gilmanii
Cymopterus glaucus
Cymopterus globosus
Cymopterus glomeratus
Cymopterus goodrichii
Cymopterus hendersonii
Cymopterus ibapensis
Cymopterus jonesii
Cymopterus lapidosus
Cymopterus longilobus
Cymopterus longipes
Cymopterus macrorhizus
Cymopterus minimus
Cymopterus montanus
Cymopterus multinervatus
Cymopterus newberryi
Cymopterus nivalis
Cymopterus panamintensis
Cymopterus planosus
Cymopterus purpurascens
Cymopterus purpureus
Cymopterus ripleyi
Cymopterus terebinthinus
Cymopterus terebinthinus var. albiflorus
Cymopterus terebinthinus var. calcareus
Cymopterus terebinthinus var. petraeus
Cymopterus williamsii
Cynanchum laeve
Cynanchum ligulatum
Cynanchum racemosum var. unifarium
Cynanchum unifarium
Cynodon dactylon
Cynodontium alpestre
Cynodontium glaucescens
Cynodontium gracilescens
Cynodontium polycarpon
Cynodontium schisti
Cynodontium strumiferum
Cynodontium tenellum
Cynoglossum amabile
Cynoglossum boreale
Cynoglossum grande
Cynoglossum occidentale
Cynoglossum officinale
Cynoglossum virginianum
Cynoglossum virginianum var. boreale
Cynoglossum wallichii
Cynoglossum zeylanicum
Cynoglottis barrelieri
Cynosurus cristatus
Cynosurus echinatus
Cyperus acuminatus
Cyperus aggregatus
Cyperus amabilis
Cyperus aristatus
Cyperus articulatus
Cyperus bipartitus
Cyperus cephalanthus
Cyperus compressus
Cyperus croceus
Cyperus cuspidatus
Cyperus dentatus
Cyperus diandrus
Cyperus dioicus
Cyperus dipsaceus
Cyperus distinctus
Cyperus drummondii
Cyperus echinatus
Cyperus elegans
Cyperus entrerianus
Cyperus eragrostis
Cyperus erythrorhizos
Cyperus esculentus
Cyperus esculentus var. leptostachyus
Cyperus fendlerianus
Cyperus filicinus
Cyperus filiculmis
Cyperus flavescens
Cyperus flavicomus
Cyperus floribundus
Cyperus fuscus
Cyperus granitophilus
Cyperus grayi
Cyperus haspan
Cyperus hermaphroditus
Cyperus houghtonii
Cyperus hypopitys
Cyperus iria
Cyperus laevigatus
Cyperus lancastriensis
Cyperus lanceolatus
Cyperus lecontei
Cyperus ligularis
Cyperus lupulinus ssp. lupulinus
Cyperus manimae
Cyperus martindalei
Cyperus mutisii
Cyperus niger
Cyperus ochraceus
Cyperus odoratus
Cyperus pallidicolor
Cyperus papyrus
Cyperus parishii
Cyperus plukenetii
Cyperus polystachyos
Cyperus prolixus
Cyperus pseudovegetus
Cyperus reflexus
Cyperus retroflexus
Cyperus retrofractus
Cyperus retrorsus
Cyperus rivularis
Cyperus rotundus
Cyperus schweinitzii
Cyperus seslerioides
Cyperus setigerus
Cyperus spectabilis
Cyperus sphaerolepis
Cyperus squarrosus
Cyperus strigosus
Cyperus surinamensis
Cyperus tetragonus
Cyperus virens
Cyphomeris gypsophiloides
Cypripedium acaule
Cypripedium calceolus
Cypripedium calceolus ssp. parviflorum
Cypripedium californicum
Cypripedium fasciculatum
Cypripedium guttatum
Cypripedium montanum
Cypripedium parviflorum
Cypripedium parviflorum var. parviflorum
Cypripedium passerinum
Cypripedium reginae
Cypselea humifusa
Cyrilla racemiflora
Cyrto-hypnum involvens
Cyrto-hypnum minutulum
Cyrto-hypnum pygmaeum
Cyrtomnium hymenophylloides
Cyrtomnium hymenophyllum
Cyrtopus setosus
Cyrtorhyncha ranunculina
Cystopteris fragilis
Cystopteris fragilis x reevesiana
Cystopteris montana
Cystopteris protrusa
Cystopteris reevesiana
Cystopteris tenuis
Cystopteris undetermined
Cystopteris utahensis
Cytisus scoparius