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.

Cabomba caroliniana

Caesalpinia nipensis

Caesalpinia pulcherrima

Calacanthus grandiflorus

Calamagrostis arundinacea

Calamagrostis canadensis

Calamagrostis inexpansa

Calamagrostis lapponica

Calamagrostis montanensis

Calamagrostis purpurascens

Calamagrostis purpurea

Calamagrostis rubescens

Calamagrostis scopulorum

Calamagrostis stricta

Calandrinia ciliata

Calceolaria angustiflora

Calendula arvensis

Calendula officinalis

Calibrachoa humilis

Calibrachoa parviflora

Calla palustris

Callaeum macropterum

Calliandra californica

Calliandra eriophylla

Calliandra haematocephala

Calliandra humilis

Calliandra humilis var. humilis

Calliandra humilis var. reticulata

Calliandra peninsularis

Callicladium imponens

Calliergon cordifolium

Calliergon megalophyllum

Calliergonella lindbergii

Callirhoe alcaeoides

Callirhoe involucrata

Callirhoe involucrata var. lineariloba

Callirhoe leiocarpa

Callirhoe pedata

Calliscirpus criniger

Callisia gentlei var. elegans

Callisia repens

Callisia rosea

Callistephus chinensis

Callitriche hermaphroditica

Callitriche hermaphroditica subsp. hermaphroditica

Callitriche heterophylla

Callitriche palustris

Callitriche palustris subsp. palustris

Callitropsis nootkatensis

Calocedrus decurrens

Calochortus albus

Calochortus ambiguus

Calochortus aureus

Calochortus bruneaunis

Calochortus ciscoensis

Calochortus elegans

Calochortus flexuosus

Calochortus gunnisonii

Calochortus gunnisonii var. gunnisonii

Calochortus kennedyi

Calochortus kennedyi var. kennedyi

Calochortus kennedyi var. munzii

Calochortus leichtlinii

Calochortus macrocarpus

Calochortus macrocarpus var. macrocarpus

Calochortus nudus

Calochortus nuttallii

Calochortus splendens

Calochortus superbus

Calochortus venustulus var. venustulus

Calochortus venustus

Calotropis procera

Caltha leptosepala

Caltha palustris

Caltha sagittata

Calycanthus floridus var. glaucus

Calycoseris parryi

Calycoseris wrightii

Calymperes levyanum

Calypso bulbosa var. occidentalis

Calyptocarpus vialis

Calyptridium arizonicum

Calyptridium monandrum

Calyptridium nevadense

Calyptridium parryi

Calyptridium roseum

Calyptridium umbellatum

Calystegia longipes

Calystegia macounii

Calystegia sepium

Calystegia sepium subsp. americana

Calystegia sepium subsp. angulata

Calystegia sepium subsp. sepium

Calystegia silvatica subsp. fraterniflora

Camassia quamash

Camassia quamash subsp. quamash

Camassia quamash subsp. utahensis

Camassia scilloides

Camelina alyssum subsp. integerrima

Camelina microcarpa

Camelina rumelica

Camelina sativa

Camellia petelotii var. microcarpa

Camissonia campestris

Camissonia contorta

Camissonia parvula

Camissonia pusilla

Camissonia strigulosa

Camissoniopsis confusa

Camissoniopsis ignota

Camissoniopsis micrantha

Camissoniopsis pallida

Camissoniopsis pallida subsp. hallii

Camissoniopsis pallida subsp. pallida

Campanula armena

Campanula carnica

Campanula carpatica

Campanula choruhensis

Campanula garganica

Campanula glomerata

Campanula grossekii

Campanula intercedens

Campanula medium

Campanula parryi

Campanula persicifolia

Campanula petiolata

Campanula punctata

Campanula raddeana

Campanula ramosissima

Campanula rapunculoides

Campanula rotundifolia

Campanula scheuchzeri

Campanula sibirica subsp. taurica

Campanula wanneri

Campanula zangezura

Campanulastrum americanum

Campeiostachys dahurica

Campeiostachys drobovii

Camphorosma monspeliaca

Campsis grandiflora

Campsis radicans

Campylium chrysophyllum

Campylium stellatum

Canadanthus modestus

Canna indica

Cannabis sativa

Cannabis sativa subsp. indica

Cannabis sativa subsp. sativa

Canotia holacantha

Capparis spinosa

Capsella bursa-pastoris

Capsella rubella

Caragana arborescens

Caragana aurantiaca

Caragana frutex

Caragana halodendron

Cardamine breweri

Cardamine breweri var. leibergii

Cardamine californica

Cardamine chenopodiifolia

Cardamine clematitis

Cardamine cordifolia

Cardamine debilis

Cardamine flexuosa

Cardamine hirsuta

Cardamine oligosperma

Cardamine parviflora

Cardamine pensylvanica

Cardiospermum corindum

Cardiospermum halicacabum

Carduus acanthoides

Carduus nutans

Carduus nutans subsp. leiophyllus

Carex aboriginum

Carex acuta

Carex acutata

Carex acutiformis

Carex adusta

Carex albicans

Carex albolutescens

Carex albonigra

Carex albursina

Carex alma

Carex amphibola

Carex amplifolia

Carex anisostachys

Carex annectens

Carex aperta

Carex aquatilis

Carex aquatilis var. aquatilis

Carex aquatilis var. dives

Carex aquatilis var. minor

Carex arapahoensis

Carex arctata

Carex arctogena

Carex arizonica

Carex atherodes

Carex athrostachya

Carex atlantica subsp. atlantica

Carex atrata

Carex atrata subsp. atrata

Carex atratiformis

Carex atrosquama

Carex aurea

Carex aureolensis

Carex backii

Carex baileyi

Carex barbarae

Carex bebbii

Carex bella

Carex bigelowii

Carex bigelowii subsp. bigelowii

Carex bolanderi

Carex bonplandii

Carex borealipolaris

Carex brevior

Carex breviscapa

Carex breweri

Carex bromoides

Carex brunnea

Carex brunnescens

Carex brunnescens subsp. brunnescens

Carex buxbaumii

Carex canescens

Carex canescens subsp. canescens

Carex capillaris

Carex capillaris subsp. capillaris

Carex capitata

Carex cephaloidea

Carex chalciolepis

Carex chihuahuensis

Carex chordorrhiza

Carex comosa

Carex concinna

Carex concinnoides

Carex conjuncta

Carex conoidea

Carex cordillerana

Carex crawei

Carex crawfordii

Carex curatorum

Carex cusickii

Carex dacica

Carex deasyi

Carex debilis

Carex deflexa

Carex deflexa var. boottii

Carex deweyana

Carex deweyana var. deweyana

Carex diandra

Carex digitalis

Carex dioica

Carex disperma

Carex disticha

Carex douglasii

Carex duriuscula

Carex duriuscula subsp. duriuscula

Carex ebenea

Carex eburnea

Carex echinata

Carex echinata subsp. echinata

Carex egglestonii

Carex elynoides

Carex emoryi

Carex endlichii

Carex engelmannii

Carex exsiccata

Carex festucacea

Carex filifolia

Carex filifolia var. filifolia

Carex fissuricola

Carex flacca

Carex flava

Carex foenea

Carex foetida

Carex formosa

Carex frankii

Carex frigida

Carex fuliginosa

Carex garberi

Carex gayana

Carex geophila

Carex geyeri

Carex glaucodea

Carex globosa

Carex granularis

Carex gravida

Carex grayi

Carex grisea

Carex halleriana

Carex hallii

Carex harfordii

Carex hassei

Carex haydeniana

Carex heleonastes

Carex helleri

Carex heteroneura

Carex heteroneura var. brevisquama

Carex heteroneura var. epapillosa

Carex heteroneura var. heteroneura

Carex holmgreniorum

Carex hoodii

Carex hookeriana

Carex hystericina

Carex idahoa

Carex illota

Carex incurviformis

Carex infirminervia

Carex inops

Carex inops subsp. heliophila

Carex inops subsp. inops

Carex integra

Carex interior

Carex interrupta

Carex jamesii

Carex jonesii

Carex kelloggii

Carex kelloggii var. kelloggii

Carex lachenalii

Carex lachenalii subsp. lachenalii

Carex laeviconica

Carex laeviculmis

Carex laevigata

Carex laevivaginata

Carex lasiocarpa

Carex lasiocarpa var. americana

Carex lasiocarpa var. lasiocarpa

Carex lativena

Carex laxiflora

Carex leavenworthii

Carex lenticularis

Carex lepidocarpa

Carex leporina

Carex leporinella

Carex leptalea

Carex leptalea subsp. leptalea

Carex leptonervia

Carex leptopoda

Carex limosa

Carex livida

Carex loliacea

Carex lurida

Carex luzulifolia

Carex luzulina

Carex luzulina var. ablata

Carex lyngbyei

Carex macloviana

Carex macloviana var. macloviana

Carex macrocephala

Carex maculata

Carex magellanica

Carex magellanica subsp. irrigua

Carex marina

Carex maritima

Carex mckittrickensis

Carex meadii

Carex media

Carex melanocephala

Carex membranacea

Carex michauxiana

Carex michelii

Carex microcarpa

Carex microdonta

Carex microglochin

Carex micropoda

Carex microptera

Carex missouriensis

Carex montana

Carex multicaulis

Carex multicostata

Carex muricata

Carex muriculata

Carex myosuroides

Carex nardina

Carex nardina var. hepburnii

Carex nebrascensis

Carex nelsonii

Carex nervina

Carex neurophora

Carex nigra

Carex nigra subsp. nigra

Carex nigricans

Carex norvegica

Carex norvegica subsp. norvegica

Carex nova

Carex novae-angliae

Carex nudata

Carex obnupta

Carex obtusata

Carex occidentalis

Carex oederi

Carex oederi var. oederi

Carex oreocharis

Carex pachystachya

Carex parryana

Carex parviflora

Carex pauciflora

Carex paysonis

Carex peckii

Carex pellita

Carex pelocarpa

Carex pensylvanica

Carex perglobosa

Carex petasata

Carex phaeocephala

Carex pityophila

Carex planostachys

Carex podocarpa

Carex polystachya

Carex praeceptorum

Carex praegracilis

Carex praticola

Carex preslii

Carex proposita

Carex pseudocyperus

Carex pyrenaica

Carex pyrenaica subsp. pyrenaica

Carex radiata

Carex raynoldsii

Carex reniformis

Carex retrorsa

Carex rosea

Carex rossii

Carex rostrata

Carex rostrata var. rostrata

Carex rupestris

Carex rupestris subsp. rupestris

Carex salina var. salina

Carex sartwelliana

Carex sartwellii

Carex saxatilis

Carex saximontana

Carex schweinitzii

Carex scirpoidea

Carex scirpoidea var. pseudoscirpoidea

Carex scirpoidea var. scirpoidea

Carex scoparia

Carex scopulorum

Carex scopulorum var. bracteosa

Carex scopulorum var. scopulorum

Carex sempervirens

Carex senta

Carex serratodens

Carex sheldonii

Carex siccata

Carex siccata var. siccata

Carex simpliciuscula

Carex simpliciuscula subsp. simpliciuscula

Carex simulata

Carex sparganioides

Carex spectabilis

Carex spicata

Carex spissa

Carex sprengelii

Carex stenophylla

Carex stenoptila

Carex sterilis

Carex stevenii

Carex stipata

Carex stipata var. stipata

Carex straminea

Carex straminiformis

Carex striatula

Carex stricta

Carex subfusca

Carex subnigricans

Carex supina

Carex sychnocephala

Carex tahoensis

Carex tenera

Carex tenuiflora

Carex thurberi

Carex torreyi

Carex tribuloides

Carex trichocarpa

Carex trisperma

Carex turbinata

Carex ultra

Carex umbellata

Carex unilateralis

Carex utahensis

Carex utriculata

Carex vallicola

Carex vernacula

Carex vesicaria

Carex viridistellata

Carex vulpinoidea

Carex wootonii

Carex xerantica

Carissa macrocarpa

Carlowrightia arizonica

Carlowrightia linearifolia

Carlowrightia parviflora

Carlowrightia serpyllifolia

Carlowrightia texana

Carlowrightia torreyana

Carludovica palmata

Carminatia tenuiflora

Carnegiea gigantea

Carphochaete bigelovii

Carphochaete pringlei

Carpinus betulus

Carpinus caroliniana

Carpinus caroliniana subsp. virginiana

Carpobrotus chilensis

Carpobrotus edulis

Carthamus lanatus

Carthamus tinctorius

Carum appuanum subsp. appuanum

Carum carvi

Carya glabra

Carya illinoinensis

Carya ovata

Caryopteris incana

Cascabela thevetia

Casimiroa edulis

Castanea dentata

Castanea mollissima

Castela tortuosa

Castilleja affinis

Castilleja affinis var. neglecta

Castilleja angustifolia

Castilleja angustifolia var. dubia

Castilleja angustifolia var. flavescens

Castilleja applegatei

Castilleja applegatei var. pinetorum

Castilleja applegatei var. viscida

Castilleja aquariensis

Castilleja aspera

Castilleja attenuata

Castilleja chromosa

Castilleja coccinea

Castilleja cusickii

Castilleja elegans

Castilleja exserta

Castilleja fissifolia

Castilleja flava

Castilleja haydenii

Castilleja hispida

Castilleja indivisa

Castilleja integra

Castilleja kaibabensis

Castilleja lanata

Castilleja linariifolia

Castilleja lindheimeri

Castilleja lineata

Castilleja linifolia

Castilleja lutescens

Castilleja martini

Castilleja miniata

Castilleja miniata var. dixonii

Castilleja minor

Castilleja minor var. exilis

Castilleja minor var. stenantha

Castilleja nana

Castilleja nelsonii

Castilleja nervata

Castilleja occidentalis

Castilleja pallida

Castilleja pallida var. caudata

Castilleja parviflora

Castilleja parvula

Castilleja patriotica

Castilleja pruinosa

Castilleja puberula

Castilleja pulchella

Castilleja purpurea

Castilleja revealii

Castilleja rhexifolia

Castilleja rigida

Castilleja scabrida

Castilleja scabrida var. barnebyana

Castilleja septentrionalis

Castilleja sessiliflora

Castilleja tenuiflora

Castilleja tenuifolia

Castilleja tomentosa

Castilleja viscidula

Castilleja wootonii

Casuarina cunninghamiana

Casuarina equisetifolia

Catabrosa aquatica

Catalpa bignonioides

Catalpa ovata

Catalpa speciosa

Catapodium rigidum

Catharanthus roseus

Ceanothus americanus

Ceanothus cordulatus

Ceanothus cuneatus

Ceanothus fendleri

Ceanothus herbaceus

Ceanothus integerrimus

Ceanothus martini

Ceanothus pauciflorus

Ceanothus pendletonensis

Ceanothus perplexans

Ceanothus pinetorum

Ceanothus sanguineus

Ceanothus tomentosus

Ceanothus velutinus

Ceanothus velutinus var. laevigatus

Cedrus atlantica

Cedrus deodara

Cedrus libani

Ceiba speciosa

Celastrus scandens

Celosia argentea

Celosia argentea f. cristata

Celtis iguanaea

Celtis laevigata

Celtis laevigata var. texana

Celtis occidentalis

Celtis pallida

Celtis reticulata

Cenchrus alopecuroides

Cenchrus americanus

Cenchrus biflorus

Cenchrus ciliaris

Cenchrus clandestinus

Cenchrus echinatus

Cenchrus latifolius

Cenchrus longisetus

Cenchrus longispinus

Cenchrus palmeri

Cenchrus setaceus

Cenchrus setigerus

Cenchrus spinifex

Cenchrus tribuloides

Centaurea australis

Centaurea benedicta

Centaurea calcitrapa

Centaurea cineraria

Centaurea cuneifolia subsp. cuneifolia

Centaurea cyanus

Centaurea diffusa

Centaurea jacea

Centaurea jacea subsp. jacea

Centaurea macrocephala

Centaurea melitensis

Centaurea montana

Centaurea scabiosa

Centaurea solstitialis

Centaurea solstitialis subsp. solstitialis

Centaurea stoebe

Centaurea stoebe subsp. stoebe

Centaurea thuillieri

Centaurea triumfettii

Centaurea virgata

Centaurea virgata subsp. squarrosa

Centaurea ×psammogena

Centaurium pulchellum

Centranthus ruber

Centromadia fitchii

Centrosema virginianum

Centrostegia thurberi

Cephalanthus occidentalis

Cephalocereus senilis

Cephalotaxus harringtonii

Cephaloziella divaricata

Cerastium alpinum

Cerastium arvense

Cerastium arvense subsp. arvense

Cerastium axillare

Cerastium beeringianum

Cerastium beeringianum subsp. beeringianum

Cerastium beeringianum subsp. earlei

Cerastium beeringianum var. grandiflorum

Cerastium brachypetalum

Cerastium brachypodum

Cerastium elongatum

Cerastium fastigiatum

Cerastium fontanum

Cerastium fontanum subsp. fontanum

Cerastium glomeratum

Cerastium holosteoides

Cerastium nutans

Cerastium nutans var. obtectum

Cerastium sordidum

Cerastium texanum

Cerastium tomentosum

Ceratocephala orthoceras

Ceratodon purpureus

Ceratonia siliqua

Ceratophyllum demersum

Cercidiphyllum japonicum

Cercis canadensis

Cercis canadensis subsp. texensis

Cercis chinensis

Cercis occidentalis

Cercis orbiculata

Cercocarpus betuloides

Cercocarpus breviflorus

Cercocarpus intricatus

Cercocarpus ledifolius

Cercocarpus ledifolius var. intercedens

Cercocarpus montanus

Cercocarpus montanus var. minutiflorus

Cereus hildmannianus

Cereus hildmannianus subsp. hildmannianus

Cereus repandus

Ceropegia cereiformis

Ceropegia cornuta

Ceropegia geminata subsp. geminata

Ceropegia gigantea

Ceropegia guttata subsp. reticulata

Ceropegia leendertziae

Ceropegia lenewtonii

Ceropegia macrocarpa subsp. macrocarpa

Ceropegia mixta

Ceropegia pulvinata

Ceropegia rendallii

Ceropegia sandersonii

Ceropegia woodii

Cestrum aurantiacum

Cestrum elegans

Cevallia sinuata

Chaenactis carphoclinia

Chaenactis douglasii

Chaenactis douglasii var. alpina

Chaenactis evermannii

Chaenactis fremontii

Chaenactis glabriuscula

Chaenactis macrantha

Chaenactis nevadensis

Chaenactis stevioides

Chaenactis xantiana

Chaenomeles japonica

Chaenomeles speciosa

Chaerophyllum procumbens

Chaerophyllum tainturieri

Chaetadelpha wheeleri

Chaetopappa bellioides

Chaetopappa ericoides

Chamaebatiaria millefolium

Chamaecereus silvestrii

Chamaechaenactis scaposa

Chamaecrista absus

Chamaecrista fasciculata

Chamaecrista nictitans

Chamaecrista nictitans subsp. nictitans

Chamaecrista nictitans var. leptadenia

Chamaecrista serpens

Chamaecrista serpens var. wrightii

Chamaecyparis lawsoniana

Chamaecyparis pisifera

Chamaecyparis thyoides

Chamaemelum nobile

Chamaenerion angustifolium

Chamaenerion angustifolium subsp. angustifolium

Chamaenerion angustifolium subsp. circumvagum

Chamaenerion latifolium

Chamaerhodos erecta

Chamaerops humilis

Chamaesaracha arida

Chamaesaracha conioides

Chamaesaracha coronopus

Chamaesaracha crenata

Chamaesaracha edwardsiana

Chamaesaracha felgeri

Chamaesaracha pallida

Chamaesaracha sordida

Chamaesaracha texensis

Chamaesaracha villosa

Chamaesciadium acaule

Chaptalia albicans

Chaptalia texana

Chasmanthium latifolium

Chelidonium majus

Chelone glabra

Chenopodiastrum hybridum

Chenopodiastrum murale

Chenopodiastrum simplex

Chenopodium acerifolium

Chenopodium albescens

Chenopodium album

Chenopodium album var. missouriense

Chenopodium atrovirens

Chenopodium berlandieri

Chenopodium berlandieri var. boscianum

Chenopodium berlandieri var. sinuatum

Chenopodium berlandieri var. zschackei

Chenopodium betaceum

Chenopodium cycloides

Chenopodium desiccatum

Chenopodium ficifolium

Chenopodium fremontii

Chenopodium fremontii var. pringlei

Chenopodium giganteum

Chenopodium hians

Chenopodium incanum

Chenopodium incanum var. elatum

Chenopodium incanum var. occidentale

Chenopodium lanceolatum

Chenopodium leiospermum

Chenopodium leptophyllum

Chenopodium neomexicanum

Chenopodium neomexicanum var. arizonicum

Chenopodium nevadense

Chenopodium nitens

Chenopodium pallescens

Chenopodium palmeri

Chenopodium pratericola

Chenopodium quinoa

Chenopodium sonorense

Chenopodium subglabrum

Chenopodium vulvaria

Chenopodium watsonii

Cherleria arctica

Cherleria biflora

Cherleria laricifolia subsp. laricifolia

Cherleria obtusiloba

Chilopsis linearis

Chilopsis linearis subsp. arcuata

Chilopsis linearis subsp. linearis

Chiloscyphus pallescens

Chiloscyphus polyanthos

Chimaphila maculata

Chimaphila menziesii

Chimaphila umbellata

Chimaphila umbellata subsp. acuta

Chimaphila umbellata subsp. cisatlantica

Chimaphila umbellata subsp. occidentalis

Chionanthus virginicus

Chionophila jamesii

Chloracantha spinosa

Chloris cucullata

Chloris gayana

Chloris pilosa

Chloris pycnothrix

Chloris submutica

Chloris verticillata

Chloris virgata

Chlorocrambe hastata

Chlorophytum capense

Chlorophytum comosum

Chloropyron maritimum subsp. canescens

Chloropyron maritimum subsp. parryi

Choisya arizonica

Choisya arizonica var. amplophylla

Choisya dumosa

Choisya ternata

Chondrilla juncea

Chorispora tenella

Chorizanthe brevicornu

Chorizanthe corrugata

Chorizanthe rigida

Chorizanthe watsonii

Chromolaena sagittata

Chrysactinia mexicana

Chrysalidocarpus decaryi

Chrysalidocarpus lutescens

Chrysojasminum floridum

Chrysojasminum humile

Chrysopogon zizanioides

Chrysosplenium alternifolium

Chrysosplenium tetrandrum

Chrysothamnus depressus

Chrysothamnus greenei

Chrysothamnus stylosus

Chrysothamnus vaseyi

Chrysothamnus viscidiflorus

Chrysothamnus viscidiflorus subsp. axillaris

Chrysothamnus viscidiflorus subsp. lanceolatus

Chrysothamnus viscidiflorus subsp. puberulus

Chrysothamnus viscidiflorus subsp. viscidiflorus

Chthamalia biflora

Chthamalia chihuahuensis

Chthamalia parviflora

Chthamalia producta

Chylismia arenaria

Chylismia atwoodii

Chylismia brevipes

Chylismia brevipes subsp. arizonica

Chylismia brevipes subsp. brevipes

Chylismia brevipes subsp. pallidula

Chylismia cardiophylla

Chylismia claviformis

Chylismia claviformis var. aurantiaca

Chylismia claviformis var. cruciformis

Chylismia claviformis var. peeblesii

Chylismia claviformis var. peirsonii

Chylismia claviformis var. purpurascens

Chylismia claviformis var. rubescens

Chylismia claviformis var. yumae

Chylismia confertiflora

Chylismia eastwoodiae

Chylismia exilis

Chylismia heterochroma

Chylismia megalantha

Chylismia multijuga

Chylismia parryi

Chylismia scapoidea

Chylismia scapoidea var. brachycarpa

Chylismia scapoidea var. macrocarpa

Chylismia scapoidea var. utahensis

Chylismia specicola

Chylismia specicola subsp. specicola

Chylismia walkeri

Chylismia walkeri var. tortilis

Chylismiella pterosperma

Cicer arietinum

Cichorium intybus

Cicuta bulbifera

Cicuta douglasii

Cicuta maculata

Cicuta maculata var. angustifolia

Cicuta virosa

Cincinnobotrys pulchella

Cinna arundinacea

Cinna latifolia

Circaea alpina

Circaea alpina subsp. alpina

Circaea alpina subsp. pacifica

Circaea canadensis subsp. canadensis

Cirsium acaule

Cirsium altissimum

Cirsium arizonicum

Cirsium arizonicum var. rothrockii

Cirsium arvense

Cirsium arvense var. vestitum

Cirsium barnebyi

Cirsium brevifolium

Cirsium brevistylum

Cirsium calcareum

Cirsium canescens

Cirsium centaureae

Cirsium chellyense

Cirsium clavatum

Cirsium coloradense

Cirsium culebraense

Cirsium discolor

Cirsium dissectum

Cirsium douglasii

Cirsium drummondii

Cirsium eatonii

Cirsium eatonii var. murdockii

Cirsium echinus

Cirsium edule

Cirsium engelmannii

Cirsium eriophoroides

Cirsium flodmanii

Cirsium foliosum

Cirsium funkiae

Cirsium grahamii

Cirsium griseum

Cirsium griseum var. osterhoutii

Cirsium harrisonii

Cirsium hesperium

Cirsium hookerianum

Cirsium horridulum

Cirsium inamoenum

Cirsium inamoenum var. davisii

Cirsium joannae

Cirsium lecontei

Cirsium mexicanum

Cirsium mohavense

Cirsium muticum

Cirsium neomexicanum

Cirsium occidentale var. candidissimum

Cirsium ochrocentrum

Cirsium ochrocentrum var. martinii

Cirsium ownbeyi

Cirsium parryi

Cirsium perplexans

Cirsium pulchellum

Cirsium pulcherrimum

Cirsium remotifolium var. odontolepis

Cirsium scapanolepis

Cirsium scariosum

Cirsium scariosum var. thorneae

Cirsium scopulorum

Cirsium texanum

Cirsium tioganum

Cirsium tracyi

Cirsium undulatum

Cirsium virginianum

Cirsium vulgare

Cirsium wheeleri

Cissus alata

Cissus trifoliata

Cistanthe maritima

Citrullus amarus

Citrullus colocynthis

Citrullus lanatus

Citrus japonica

Citrus maxima

Citrus trifoliata

Cladium mariscus subsp. californicum

Cladium mariscus subsp. jamaicense

Cladrastis kentukea

Claopodium rostratum

Clappia suaedifolia

Clarkia epilobioides

Clarkia heterandra

Clarkia purpurea

Clarkia purpurea subsp. quadrivulnera

Clarkia rhomboidea

Clarkia unguiculata

Claytonia arctica

Claytonia caroliniana

Claytonia cordifolia

Claytonia lanceolata

Claytonia megarhiza

Claytonia multiscapa subsp. multiscapa

Claytonia parviflora

Claytonia parviflora subsp. parviflora

Claytonia parviflora subsp. utahensis

Claytonia parviflora subsp. viridis

Claytonia perfoliata

Claytonia perfoliata subsp. intermontana

Claytonia perfoliata subsp. mexicana

Claytonia perfoliata subsp. perfoliata

Claytonia rosea

Claytonia rubra

Claytonia rubra subsp. depressa

Claytonia rubra subsp. rubra

Claytonia sibirica

Claytonia virginica

Cleistocactus smaragdiflorus

Clematis alpina

Clematis baldwinii

Clematis bigelovii

Clematis columbiana

Clematis columbiana var. tenuiloba

Clematis crispa

Clematis drummondii

Clematis graveolens

Clematis hirsutissima

Clematis hirsutissima var. arizonica

Clematis hirsutissima var. scottii

Clematis ligusticifolia

Clematis ligusticifolia var. brevifolia

Clematis occidentalis

Clematis occidentalis var. grosseserrata

Clematis ochotensis

Clematis orientalis

Clematis palmeri

Clematis pitcheri

Clematis pitcheri var. dictyota

Clematis virginiana

Cleomella angustifolia

Cleomella arborea

Cleomella arborea var. angustata

Cleomella hillmanii

Cleomella hillmanii var. goodrichii

Cleomella jonesii

Cleomella longipes

Cleomella lutea

Cleomella obtusifolia

Cleomella palmeri

Cleomella palmeriana

Cleomella parviflora

Cleomella plocasperma

Cleomella refracta

Cleomella serrulata

Cleoserrata serrata

Clethra alnifolia

Clevea hyalina

Climacium dendroides

Clinopodium arkansanum

Clinopodium vulgare

Clintonia uniflora

Clitoria mariana

Cneorum tricoccon

Cnidoscolus angustidens

Cnidoscolus texanus

Coccoloba uvifera

Cochemiea barbata

Cochemiea conoidea

Cochemiea grahamii

Cochemiea halei

Cochemiea setispina

Cochemiea tetrancistra

Cochemiea wrightii subsp. wrightii

Cochliasanthus caracalla

Cochlidium serrulatum

Cochlospermum gonzalezii

Cochlospermum palmatifidum

Cochlospermum wrightii

Codonopsis clematidea

Coelogyne glumacea

Coenoemersa limosa

Coincya tournefortii

Coix lacryma-jobi

Colchicum autumnale

Coleataenia anceps

Coleataenia prionitis

Coleogyne ramosissima

Coleostephus multicaulis

Collinsia grandiflora

Collinsia heterophylla

Collinsia parryi

Collinsia parviflora

Collinsia sparsiflora

Collomia debilis

Collomia grandiflora

Collomia linearis

Collomia tenella

Collomia tinctoria

Collomia wilkenii

Colocasia esculenta

Cologania angustifolia

Cologania broussonetii

Cologania obovata

Cologania pallida

Colophospermum mopane

Colubrina californica

Colutea arborescens

Comandra umbellata

Comandra umbellata subsp. californica

Comandra umbellata subsp. pallida

Comandra umbellata subsp. umbellata

Comarum palustre

Comastoma tenellum

Commelina benghalensis

Commelina dianthifolia

Commelina dianthifolia var. dianthifolia

Commelina dianthifolia var. longispatha

Commelina diffusa

Commelina erecta

Commelina erecta subsp. erecta

Commicarpus scandens

Comptonia peregrina

Conalma mexicana

Conardia compacta

Condalia correllii

Condalia ericoides

Condalia globosa

Condalia globosa subsp. pubescens

Condalia hookeri

Condalia kearneyana

Condalia spathulata

Condalia viridis

Condalia warnockii

Condaliopsis divaricata

Condaliopsis obtusifolia

Condea albida

Condea emoryi

Conimitella williamsii

Conioselinum mexicanum

Conium maculatum

Conocephalum conicum

Conoclinium betonicifolium

Conoclinium dissectum

Conopholis alpina

Conopholis americana

Conringia orientalis

Consolea macracantha

Convallaria majalis

Convolvulus althaeoides

Convolvulus arvensis

Convolvulus cneorum

Convolvulus equitans

Convolvulus hermanniae

Convolvulus hermanniae subsp. hermanniae

Convolvulus simulans

Convolvulus tricolor

Conyza spinosa

Corallorhiza maculata

Corallorhiza maculata var. maculata

Corallorhiza maculata var. occidentalis

Corallorhiza striata

Corallorhiza striata var. striata

Corallorhiza striata var. vreelandii

Corallorhiza trifida

Corallorhiza wisteriana

Corchorus hirtus

Cordia boissieri

Cordia dichotoma

Cordia parvifolia

Cordia sebestena

Cordylanthus kingii

Cordylanthus kingii subsp. densiflorus

Cordylanthus kingii subsp. helleri

Cordylanthus kingii subsp. kingii

Cordylanthus laxiflorus

Cordylanthus nevinii

Cordylanthus parviflorus

Cordylanthus ramosus

Cordylanthus wrightii

Cordylanthus wrightii subsp. kaibabensis

Cordylanthus wrightii subsp. tenuifolius

Cordylanthus wrightii subsp. wrightii

Cordyline australis

Cordyline fruticosa

Coreocarpus arizonicus

Coreopsis auriculata

Coreopsis basalis

Coreopsis bigelovii

Coreopsis californica

Coreopsis douglasii

Coreopsis grandiflora

Coreopsis intermedia

Coreopsis lanceolata

Coreopsis tinctoria

Coriandrum sativum

Coriaria terminalis

Corispermum americanum

Corispermum americanum var. rydbergii

Corispermum aralocaspicum

Corispermum hyssopifolium

Corispermum navicula

Corispermum nitidum

Corispermum villosum

Corispermum welshii

Cornus alba

Cornus alternifolia

Cornus amomum

Cornus canadensis

Cornus controversa

Cornus florida

Cornus kousa

Cornus mas

Cornus racemosa

Cornus sanguinea

Cornus sericea

Cornus torreyi

Cornutia pyramidata

Coronilla varia

Corpuscularia lehmannii

Cortaderia jubata

Cortaderia selloana

Corydalis aurea

Corydalis caseana

Corydalis caseana subsp. brachycarpa

Corydalis caseana subsp. brandegeei

Corydalis caseana subsp. cusickii

Corydalis curvisiliqua

Corydalis curvisiliqua subsp. curvisiliqua

Corydalis curvisiliqua subsp. grandibracteata

Corydalis curvisiliqua subsp. occidentalis

Corydalis flavula

Corylus americana

Corylus avellana

Corylus cornuta

Corylus cornuta subsp. californica

Corylus cornuta subsp. cornuta

Corylus maxima

Corymbia papuana

Coscinodon calyptratus

Cosmos bipinnatus

Cosmos carvifolius

Cosmos parviflorus

Cosmos purpureus

Cosmos sulphureus

Cota tinctoria

Cota tinctoria subsp. tinctoria

Cotinus coggygria

Cotoneaster acutifolius

Cotoneaster apiculatus

Cotoneaster coriaceus

Cotoneaster divaricatus

Cotoneaster glaucophyllus

Cotoneaster horizontalis

Cotoneaster melanocarpus

Cotoneaster microphyllus

Cotoneaster multiflorus

Cotoneaster pannosus

Cottea pappophoroides

Cottsia gracilis

Cotula australis

Cotula coronopifolia

Coulteria cubensis

Coulteria platyloba

Coulteria pumila

Coulteria velutina

Coursetia caribaea

Coursetia caribaea var. caribaea

Coursetia caribaea var. sericea

Coursetia glandulosa

Crambe hispanica subsp. abyssinica

Crassula aquatica

Crassula columnaris

Crassula connata

Crassula drummondii

Crassula muscosa

Crassula viridis

Crataegus ambigua

Crataegus castlegarensis

Crataegus chrysocarpa

Crataegus crus-galli

Crataegus douglasii

Crataegus erythrocarpa

Crataegus erythropoda

Crataegus intricata

Crataegus laevigata

Crataegus macracantha

Crataegus media

Crataegus mexicana

Crataegus mollis

Crataegus monogyna

Crataegus phaenopyrum

Crataegus rivularis

Crataegus saligna

Crataegus succulenta

Cratoneuron filicinum

Cremanthodium reniforme

Crepidium purpureum

Crepis acuminata

Crepis atribarba

Crepis barbigera

Crepis capillaris

Crepis intermedia

Crepis modocensis

Crepis modocensis subsp. modocensis

Crepis occidentalis

Crepis occidentalis subsp. costata

Crepis occidentalis subsp. occidentalis

Crepis occidentalis subsp. pumila

Crepis pulchra

Crepis rubra

Crepis runcinata

Crepis runcinata subsp. barberi

Crepis runcinata subsp. glauca

Crepis runcinata subsp. hispidulosa

Crepis runcinata subsp. runcinata

Crepis tectorum

Cressa cretica

Cressa truxillensis

Crocanthemum bicknellii

Crocanthemum rosmarinifolium

Crocus angustifolius

Crocus flavus subsp. flavus

Crocus vernus

Croptilon divaricatum

Crossidium aberrans

Crossosoma bigelovii

Crossosoma californicum

Crotalaria juncea

Crotalaria pumila

Crotalaria sagittalis

Crotalaria sagittalis var. blumeriana

Croton argyranthemus

Croton californicus

Croton ciliatoglandulifer

Croton dioicus

Croton fruticulosus

Croton glandulosus

Croton glandulosus var. glandulosus

Croton glandulosus var. lindheimeri

Croton humilis

Croton incanus

Croton lindheimerianus

Croton lindheimerianus var. lindheimerianus

Croton lindheimerianus var. tharpii

Croton monanthogynus

Croton muricatus

Croton pottsii

Croton pottsii var. pottsii

Croton punctatus

Croton setiger

Croton sonorae

Croton suaveolens

Croton texensis

Croton wigginsii

Cruciata glabra subsp. glabra

Crucihimalaya himalaica

Crucihimalaya virgata

Crusea simplex

Crusea wrightii

Crusea wrightii var. wrightii

Cryptantha abata

Cryptantha affinis

Cryptantha ambigua

Cryptantha barbigera

Cryptantha clandestina

Cryptantha crassisepala

Cryptantha crassisepala var. elachantha

Cryptantha cycloptera

Cryptantha cycloptera f. truncata

Cryptantha decipiens

Cryptantha decipiens var. corollata

Cryptantha dumetorum

Cryptantha echinella

Cryptantha fendleri

Cryptantha flaccida

Cryptantha glomerata

Cryptantha gracilis

Cryptantha intermedia

Cryptantha juniperensis

Cryptantha kelseyana

Cryptantha leiocarpa

Cryptantha maritima

Cryptantha maritima var. pilosa

Cryptantha minima

Cryptantha muricata

Cryptantha nevadensis

Cryptantha pterocarya

Cryptantha pterocarya var. stenoloba

Cryptantha recurvata

Cryptantha scoparia

Cryptantha torreyana

Cryptantha utahensis

Cryptantha watsonii

Cryptogramma acrostichoides

Cryptogramma cascadensis

Cryptogramma crispa

Cryptogramma stelleri

Cryptotaenia canadensis

Ctenidium molluscum

Ctenium elegans

Cucumis melo

Cucurbita digitata

Cucurbita ficifolia

Cucurbita foetidissima

Cucurbita maxima

Cucurbita moschata

Cucurbita palmata

Cucurbita pepo

Cuphea viscosissima

Cuphea wrightii

Cupressus sempervirens

Curio radicans

Curio repens

Curtisia dentata

Cuscuta americana

Cuscuta applanata

Cuscuta approximata

Cuscuta approximata subsp. approximata

Cuscuta azteca

Cuscuta californica

Cuscuta californica var. apiculata

Cuscuta campestris

Cuscuta cephalanthi

Cuscuta cuspidata

Cuscuta denticulata

Cuscuta draconella

Cuscuta erosa

Cuscuta glabrior

Cuscuta glabrior var. pubescens

Cuscuta gronovii

Cuscuta indecora

Cuscuta indecora var. neuropetala

Cuscuta legitima

Cuscuta leptantha

Cuscuta liliputana

Cuscuta occidentalis

Cuscuta odontolepis

Cuscuta pentagona

Cuscuta potosina

Cuscuta salina

Cuscuta squamata

Cuscuta tuberculata

Cuscuta umbellata

Cuscuta umbrosa

Cuscuta veatchii

Cusickiella douglasii

Cycas revoluta

Cyclachaena xanthiifolia

Cycladenia humilis

Cyclamen persicum

Cyclanthera dissecta

Cyclanthera gracillima

Cyclanthera naudiniana

Cyclospermum leptophyllum

Cydonia oblonga

Cylindropuntia abyssi

Cylindropuntia acanthocarpa

Cylindropuntia acanthocarpa subsp. acanthocarpa

Cylindropuntia acanthocarpa subsp. coloradensis

Cylindropuntia acanthocarpa subsp. major

Cylindropuntia acanthocarpa var. thornberi

Cylindropuntia alcahes

Cylindropuntia alcahes var. burrageana

Cylindropuntia arbuscula

Cylindropuntia bernardina

Cylindropuntia bigelowii subsp. bigelowii

Cylindropuntia bigelowii subsp. ciribe

Cylindropuntia californica subsp. delgadilloana

Cylindropuntia californica subsp. rosarica

Cylindropuntia cholla

Cylindropuntia davisii

Cylindropuntia echinocarpa

Cylindropuntia fulgida

Cylindropuntia fulgida var. mamillata

Cylindropuntia imbricata

Cylindropuntia imbricata subsp. imbricata

Cylindropuntia imbricata subsp. spinosior

Cylindropuntia kleiniae

Cylindropuntia leptocaulis

Cylindropuntia molesta subsp. clavellina

Cylindropuntia molesta subsp. molesta

Cylindropuntia prolifera

Cylindropuntia ramosissima

Cylindropuntia tesajo

Cylindropuntia thurberi

Cylindropuntia thurberi subsp. versicolor

Cylindropuntia tunicata

Cylindropuntia whipplei

Cylindropuntia whipplei subsp. enodis

Cylindropuntia ×fosbergii

Cylindropuntia ×multigeniculata

Cylindropuntia ×viridiflora

Cymbalaria muralis

Cymbidium canaliculatum

Cymbopogon procerus

Cymbopogon schoenanthus

Cymopterus anisatus

Cymopterus breviradiatus

Cymopterus coulteri

Cymopterus crawfordensis

Cymopterus evertii

Cymopterus filifolius

Cymopterus globosus

Cymopterus glomeratus

Cymopterus glomeratus var. concinnus

Cymopterus glomeratus var. fendleri

Cymopterus glomeratus var. higginsii

Cymopterus glomeratus var. parvus

Cymopterus hallii

Cymopterus humilis

Cymopterus jonesii

Cymopterus lapidosus

Cymopterus lemmonii

Cymopterus newberryi

Cymopterus rosei

Cymopterus sessiliflorus

Cymopterus spellenbergii

Cynanchum laeve

Cynanchum ligulatum

Cynanchum racemosum

Cynanchum racemosum var. unifarium

Cynara scolymus

Cynodon dactylon

Cynodon transvaalensis

Cynoglossum amabile

Cynoglossum officinale

Cynosurus cristatus

Cynosurus echinatus

Cyperus acuminatus

Cyperus acutiusculus

Cyperus aggregatus

Cyperus alternifolius

Cyperus alternifolius subsp. flabelliformis

Cyperus amabilis

Cyperus aristulatus

Cyperus bipartitus

Cyperus dentoniae

Cyperus difformis

Cyperus dipsaceus

Cyperus elegans

Cyperus eragrostis

Cyperus erythrorhizos

Cyperus esculentus

Cyperus fendlerianus

Cyperus ferax

Cyperus filiculmis

Cyperus floribundus

Cyperus glomeratus

Cyperus hemidrummondii

Cyperus hermaphroditus

Cyperus hypopitys

Cyperus iria

Cyperus laevigatus

Cyperus lanceolatus

Cyperus longus subsp. longus

Cyperus lupulinus

Cyperus lupulinus subsp. lupulinus

Cyperus macrostachyos

Cyperus manimae

Cyperus manimae var. asperrimus

Cyperus melanostachyus

Cyperus michelianus

Cyperus michelianus subsp. pygmaeus

Cyperus mutisii

Cyperus odoratus

Cyperus odoratus subsp. odoratus

Cyperus onerosus

Cyperus pallidicolor

Cyperus papyrus

Cyperus parishii

Cyperus plukenetii

Cyperus prolifer

Cyperus pseudothyrsiflorus

Cyperus retroflexus

Cyperus retroflexus var. pumilus

Cyperus retroflexus var. retroflexus

Cyperus retrorsus

Cyperus rotundus

Cyperus schweinitzii

Cyperus semiochraceus

Cyperus seslerioides

Cyperus setigerus

Cyperus sphaerolepis

Cyperus squarrosulus

Cyperus squarrosus

Cyperus squarrosus var. squarrosus

Cyperus strigosus

Cyperus subsquarrosus

Cyphomeris gypsophiloides

Cyphostemma juttae

Cypripedium calceolus

Cypripedium fasciculatum

Cypripedium montanum

Cypripedium parviflorum

Cypripedium parviflorum var. makasin

Cypripedium parviflorum var. pubescens

Cyrtorhyncha ranunculina

Cystopteris bulbifera

Cystopteris dickieana

Cystopteris fragilis

Cystopteris fragilis subsp. fragilis

Cystopteris montana

Cystopteris protrusa

Cystopteris reevesiana

Cystopteris tennesseensis

Cystopteris tenuis

Cytisus multiflorus

Cytisus scoparius