Species with Images

This page provides a complete list to taxa that have images. Use the controls below to browse and search for images by family, genus, or species.
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Cacalia suaveolens
Cakile edentula
Cakile edentula subsp. edentula
Cakile edentula subsp. edentula var. edentula
Cakile edentula subsp. edentula var. lacustris
Cakile edentula var. edentula
Cakile edentula var. lacustris
Cakile lacustris
Calamagrostis canadensis
Calamagrostis canadensis var. canadensis
Calamagrostis canadensis var. macouniana
Calamagrostis epigejos
Calamagrostis stricta
Calamagrostis stricta subsp. inexpansa
Calamagrostis stricta subsp. stricta
Calamintha arkansana
Calamovilfa longifolia
Calamovilfa longifolia var. longifolia
Calamovilfa longifolia var. magna
Calendula officinalis
Calla palustris
Callirhoe alcaeoides
Callirhoe involucrata
Callirhoe triangulata
Callistephus chinensis
Callitriche hermaphroditica
Callitriche heterophylla
Callitriche marginata
Callitriche palustris
Callitriche stagnalis
Callitriche terrestris
Calluna vulgaris
Calopogon oklahomensis
Calopogon tuberosus
Calopogon tuberosus var. tuberosus
Caltha natans
Caltha palustris
Calypso bulbosa var. americana
Calystegia sepium
Calystegia spithamaea
Camassia scilloides
Camelina microcarpa
Camelina sativa
Campanula americana
Campanula aparinoides
Campanula aparinoides subsp. aparinoides
Campanula aparinoides var. aparinoides
Campanula aparinoides var. grandiflora
Campanula glomerata
Campanula latifolia
Campanula persicifolia
Campanula rapunculoides
Campanula rotundifolia
Campanula trachelium
Campanula uliginosa
Campanulastrum americanum
Campsis radicans
Camptosorus rhizophyllus
Canadanthus modestus
Cannabis sativa
Capnoides sempervirens
Capsella bursa-pastoris
Caragana arborescens
Cardamine bulbosa
Cardamine concatenata
Cardamine diphylla
Cardamine douglassii
Cardamine flexuosa
Cardamine impatiens
Cardamine maxima
Cardamine parviflora
Cardamine parviflora var. arenicola
Cardamine pensylvanica
Cardamine pratensis
Cardamine pratensis var. palustris
Cardaria draba
Carduus acanthoides
Carduus acanthoides subsp. acanthoides
Carduus nutans
Carduus x orthocephalus
Carex adusta
Carex aggregata
Carex albicans
Carex albicans var. albicans
Carex albicans var. emmonsii
Carex albursina
Carex alopecoidea
Carex amphibola var. turgida
Carex annectens
Carex annectens var. annectens
Carex annectens var. xanthocarpa
Carex aquatilis
Carex aquatilis var. aquatilis
Carex aquatilis var. substricta
Carex arcta
Carex arctata
Carex assiniboinensis
Carex atherodes
Carex atherodes X C. trichocarpa
Carex aurea
Carex backii
Carex bebbii
Carex bicknellii
Carex blanda
Carex brevior
Carex bromoides
Carex bromoides subsp. bromoides
Carex brunnescens
Carex brunnescens subsp. sphaerostachya
Carex brunnescens var. sphaerostachya
Carex bushii
Carex buxbaumii
Carex canescens
Carex canescens subsp. canescens
Carex canescens subsp. disjuncta
Carex capillaris
Carex careyana
Carex castanea
Carex cephalantha
Carex cephaloidea
Carex cephalophora
Carex chordorrhiza
Carex communis
Carex communis var. communis
Carex comosa
Carex comosa X C. hystericina
Carex concinna
Carex conoidea
Carex convoluta
Carex crawei
Carex crawfordii
Carex crinita
Carex crinita var. crinita
Carex cristatella
Carex crus-corvi
Carex cryptolepis
Carex cumulata
Carex davisii
Carex debilis
Carex debilis var. rudgei
Carex deflexa
Carex deflexa var. deflexa
Carex deweyana
Carex deweyana var. deweyana
Carex diandra
Carex digitalis
Carex digitalis var. digitalis
Carex disperma
Carex eburnea
Carex echinata
Carex echinata subsp. echinata
Carex echinodes
Carex emmonsii
Carex emoryi
Carex exilis
Carex festucacea
Carex festucacea var. brevior
Carex flava
Carex foenea
Carex folliculata
Carex formosa
Carex garberi
Carex gracilescens
Carex gracillima
Carex granularis
Carex granularis var. haleana
Carex gravida
Carex grayi
Carex grisea
Carex gynandra
Carex gynocrates
Carex haydenii
Carex hirsutella
Carex hirta
Carex hirtifolia
Carex hitchcockiana
Carex houghtoniana
Carex houghtonii
Carex hystericina
Carex inops subsp. heliophila
Carex interior
Carex intumescens
Carex jamesii
Carex lacustris
Carex laeviconica
Carex laeviconica X C. trichocarpa
Carex laevivaginata
Carex lanuginosa
Carex lasiocarpa
Carex lasiocarpa subsp. americana
Carex lasiocarpa var. americana
Carex laxiculmis
Carex laxiculmis var. copulata
Carex laxiculmis var. laxiculmis
Carex laxiflora
Carex leavenworthii
Carex lenticularis
Carex lenticularis var. lenticularis
Carex leporina
Carex leptalea
Carex leptalea subsp. leptalea
Carex leptonervia
Carex limosa
Carex livida
Carex longii
Carex lucorum var. lucorum
Carex lupuliformis
Carex lupulina
Carex lurida
Carex magellanica
Carex magellanica subsp. irrigua
Carex magellanica var. irrigua
Carex meadii
Carex media
Carex merritt-fernaldii
Carex michauxiana
Carex molesta
Carex muehlenbergii
Carex muehlenbergii var. enervis
Carex muehlenbergii var. muehlenbergii
Carex muskingumensis
Carex nebrascensis
Carex nigra
Carex normalis
Carex novae-angliae
Carex oligocarpa
Carex oligosperma
Carex ormostachya
Carex ovalis
Carex pallescens
Carex pauciflora
Carex paupercula
Carex peckii
Carex pedunculata
Carex pellita
Carex pensylvanica
Carex plantaginea
Carex platyphylla
Carex praegracilis
Carex prairea
Carex prasina
Carex projecta
Carex pseudocyperus
Carex radiata
Carex retrorsa
Carex richardsonii
Carex rosea
Carex rostrata
Carex sartwellii
Carex scabrata
Carex schweinitzii
Carex scoparia
Carex scoparia X C. tribuloides
Carex scoparia var. scoparia
Carex siccata
Carex sparganioides
Carex spicata
Carex sprengelii
Carex sterilis
Carex stipata
Carex stipata var. stipata
Carex straminea
Carex stricta
Carex suberecta
Carex swanii
Carex sychnocephala
Carex tenella
Carex tenera
Carex tenuiflora
Carex tetanica
Carex tincta
Carex tonsa
Carex tonsa var. rugosperma
Carex tonsa var. tonsa
Carex torreyi
Carex tribuloides
Carex tribuloides var. tribuloides
Carex trichocarpa
Carex trisperma
Carex tuckermanii
Carex typhina
Carex umbellata
Carex utriculata
Carex vaginata
Carex vesicaria
Carex viridula
Carex viridula subsp. viridula
Carex vulpinoidea
Carex woodii
Carex x knieskernii
Carex x laricina
Carpinus caroliniana
Carpinus caroliniana subsp. virginiana
Carpinus caroliniana var. virginiana
Carum carvi
Carya cordiformis
Carya ovata
Carya ovata var. ovata
Carya x laneyi
Cassia fasciculata
Castanea dentata
Castilleja coccinea
Castilleja sessiliflora
Catabrosa aquatica
Catalpa ovata
Catalpa speciosa
Caulophyllum thalictroides
Ceanothus americanus
Ceanothus herbaceus
Celastrus orbiculatus
Celastrus scandens
Celosia argentea
Celtis occidentalis
Cenchrus longispinus
Centaurea X moncktonii
Centaurea benedicta
Centaurea biebersteinii
Centaurea cyanus
Centaurea diffusa
Centaurea jacea
Centaurea macrocephala
Centaurea melitensis
Centaurea montana
Centaurea nigra
Centaurea nigrescens
Centaurea scabiosa
Centaurea solstitialis
Centaurea stoebe
Centaurea stoebe subsp. micranthos
Centaurium pulchellum
Cephalanthus occidentalis
Cerastium arvense
Cerastium arvense subsp. arvense
Cerastium brachypodum
Cerastium fontanum
Cerastium fontanum subsp. vulgare
Cerastium nutans
Cerastium pumilum
Cerastium semidecandrum
Cerastium tomentosum
Cerastium velutinum var. velutinum
Cerastium vulgatum var. hirsutum
Ceratocephala testiculata
Ceratophyllum demersum
Ceratophyllum echinatum
Cercis canadensis
Cercis canadensis var. canadensis
Chaenomeles speciosa
Chaenorhinum minus
Chaerophyllum procumbens
Chaiturus marrubiastrum
Chamaecrista fasciculata
Chamaedaphne calyculata
Chamaedaphne calyculata var. angustifolia
Chamaesyce geyeri
Chamaesyce glyptosperma
Chamaesyce maculata
Chamaesyce nutans
Chamaesyce polygonifolia
Chamaesyce vermiculata
Chamerion angustifolium
Chamerion angustifolium subsp. circumvagum
Chasmanthium latifolium
Cheilanthes feei
Cheilanthes lanosa
Chelidonium majus
Chelone glabra
Chelone obliqua var. speciosa
Chenopodium album
Chenopodium album var. album
Chenopodium album var. stevensii
Chenopodium ambrosioides
Chenopodium berlandieri
Chenopodium berlandieri var. bushianum
Chenopodium berlandieri var. zschackei
Chenopodium boscianum
Chenopodium bushianum
Chenopodium capitatum
Chenopodium capitatum var. capitatum
Chenopodium desiccatum var. leptophylloides
Chenopodium foliosum
Chenopodium gigantospermum
Chenopodium glaucum
Chenopodium glaucum var. glaucum
Chenopodium hybridum var. gigantospermum
Chenopodium missouriense
Chenopodium murale
Chenopodium opulifolium
Chenopodium polyspermum
Chenopodium polyspermum var. acutifolium
Chenopodium pratericola
Chenopodium rubrum
Chenopodium rubrum var. rubrum
Chenopodium simplex
Chenopodium standleyanum
Chenopodium strictum
Chenopodium urbicum
Chimaphila umbellata
Chimaphila umbellata subsp. cisatlantica
Chimaphila umbellata subsp. umbellata
Chimaphila umbellata var. cisatlantica
Chloris verticillata
Chrysanthemum leucanthemum
Chrysanthemum leucanthemum var. pinnatifidum
Chrysosplenium americanum
Cichorium intybus
Cicuta bulbifera
Cicuta maculata
Cinna arundinacea
Cinna latifolia
Circaea alpina
Circaea alpina subsp. alpina
Circaea canadensis
Circaea canadensis subsp. canadensis
Circaea lutetiana subsp. canadensis
Circaea quadrisulcata
Cirsium altissimum
Cirsium altissimum X C. discolor
Cirsium arvense
Cirsium arvense var. horridum
Cirsium discolor
Cirsium discolor X C. muticum
Cirsium flodmanii
Cirsium hillii
Cirsium muticum
Cirsium palustre
Cirsium pitcheri
Cirsium pumilum var. hillii
Cirsium undulatum
Cirsium vulgare
Citrullus lanatus var. lanatus
Cladium mariscoides
Claytonia caroliniana
Claytonia virginica
Clematis occidentalis
Clematis occidentalis var. occidentalis
Clematis virginiana
Cleome hassleriana
Cleome serrulata
Clinopodium acinos
Clinopodium arkansanum
Clinopodium vulgare
Clintonia borealis
Coeloglossum viride
Coeloglossum viride var. virescens
Coleataenia rigidula
Collinsia verna
Collinsonia canadensis
Collomia linearis
Comandra umbellata
Comandra umbellata subsp. umbellata
Comarum palustre
Commelina communis
Commelina erecta
Commelina erecta var. deamiana
Comptonia peregrina
Conioselinum chinense
Conium maculatum
Conopholis americana
Conringia orientalis
Consolida ajacis
Convallaria majalis
Convallaria majalis var. majalis
Convolvulus arvensis
Conyza canadensis
Conyza ramosissima
Coptis groenlandica
Coptis trifolia
Corallorhiza maculata
Corallorhiza maculata var. maculata
Corallorhiza maculata var. occidentalis
Corallorhiza odontorhiza
Corallorhiza odontorhiza var. odontorhiza
Corallorhiza striata
Corallorhiza striata var. striata
Corallorhiza trifida
Coreopsis grandiflora
Coreopsis lanceolata
Coreopsis lanceolata var. villosa
Coreopsis palmata
Coreopsis tinctoria
Coreopsis tripteris
Corispermum americanum var. americanum
Corispermum pallasii
Corispermum villosum
Cornus alternifolia
Cornus amomum
Cornus amomum subsp. obliqua
Cornus canadensis
Cornus drummondii
Cornus foemina
Cornus foemina subsp. racemosa
Cornus obliqua
Cornus racemosa
Cornus rugosa
Cornus sericea
Cornus sericea subsp. sericea
Cornus stolonifera
Coronilla varia
Coronopus didymus
Corydalis aurea
Corydalis aurea subsp. aurea
Corydalis micrantha subsp. micrantha
Corydalis sempervirens
Corylus americana
Corylus cornuta
Corylus cornuta subsp. cornuta
Cosmos bipinnatus
Cota tinctoria
Cotoneaster divaricatus
Crataegus X disperma
Crataegus X lucorum
Crataegus acutiserrata
Crataegus beata
Crataegus brainerdii var. scabrida
Crataegus calpodendron
Crataegus chrysocarpa
Crataegus chrysocarpa var. chrysocarpa
Crataegus chrysocarpa var. longiacuminata
Crataegus coccinea var. coccinea
Crataegus coccinea var. fulleriana
Crataegus coccinea var. pringlei
Crataegus coccinioides
Crataegus crus-galli
Crataegus distincta
Crataegus dodgei
Crataegus douglasii
Crataegus florifera
Crataegus fluviatilis
Crataegus holmesiana
Crataegus intricata
Crataegus irrasa
Crataegus jesupii
Crataegus lumaria
Crataegus macracantha
Crataegus macrosperma
Crataegus magniflora
Crataegus margaretta
Crataegus mollis
Crataegus mollis var. incisifolia
Crataegus monogyna
Crataegus monogyna var. monogyna
Crataegus pedicellata
Crataegus pruinosa
Crataegus pruinosa var. dissona
Crataegus pruinosa var. pruinosa
Crataegus pruinosa var. rugosa
Crataegus pruinosa var. virella
Crataegus punctata
Crataegus scabrida
Crataegus schuettei
Crataegus submollis
Crataegus succulenta
Crepis capillaris
Crepis foetida
Crepis setosa
Crepis tectorum
Crocanthemum bicknellii
Crocanthemum canadense
Crotalaria sagittalis
Croton glandulosus var. septentrionalis
Croton monanthogynus
Croton texensis
Crypsis schoenoides
Cryptogramma stelleri
Cryptotaenia canadensis
Cucumis melo
Cucurbita foetidissima
Cucurbita maxima
Cucurbita pepo
Cuscuta campestris
Cuscuta cephalanthi
Cuscuta coryli
Cuscuta cuspidata
Cuscuta glomerata
Cuscuta gronovii
Cuscuta gronovii var. gronovii
Cuscuta gronovii var. latiflora
Cuscuta pentagona
Cuscuta polygonorum
Cyclachaena xanthiifolia
Cycloloma atriplicifolium
Cynodon dactylon
Cynoglossum amabile
Cynoglossum boreale
Cynoglossum officinale
Cynosurus cristatus
Cyperus X mesochorus
Cyperus bipartitus
Cyperus diandrus
Cyperus engelmannii
Cyperus erythrorhizos
Cyperus esculentus
Cyperus esculentus var. leptostachyus
Cyperus houghtonii
Cyperus lupulinus
Cyperus lupulinus subsp. lupulinus
Cyperus lupulinus subsp. macilentus
Cyperus lupulinus subsp. macilentus X C. schweinitzii
Cyperus odoratus
Cyperus schweinitzii
Cyperus squarrosus
Cyperus strigosus
Cypripedium acaule
Cypripedium arietinum
Cypripedium candidum
Cypripedium parviflorum
Cypripedium parviflorum var. makasin
Cypripedium parviflorum var. pubescens
Cypripedium reginae
Cypripedium x andrewsii
Cypripedium x favillianum
Cystopteris bulbifera
Cystopteris fragilis
Cystopteris fragilis var. fragilis
Cystopteris fragilis var. mackayi
Cystopteris laurentiana
Cystopteris protrusa
Cystopteris tennesseensis
Cystopteris tenuis