Calamagrostis canadensis --- bluejoint
Calamagrostis canadensis var. canadensis --- bluejoint
Calamagrostis canadensis var. imberbis --- bluejoint
Calamagrostis canadensis var. macouniana --- Macoun's reedgrass
Calamagrostis epigeios --- chee reedgrass
Calamagrostis epigeios var. epigeios --- chee reedgrass
Calamagrostis koelerioides --- fire reedgrass
Calamagrostis montanensis --- plains reedgrass
Calamagrostis purpurascens --- purple reedgrass
Calamagrostis rubescens --- pinegrass
Calamagrostis scopulorum --- ditch reedgrass
Calamagrostis stricta --- slimstem reedgrass
Calamagrostis stricta ssp. inexpansa --- northern reedgrass
Calamagrostis stricta ssp. stricta --- slimstem reedgrass
Calamovilfa longifolia --- prairie sandreed
Calamovilfa longifolia var. longifolia --- prairie sandreed
Callirhoe involucrata --- purple poppymallow
Callirhoe involucrata var. involucrata --- purple poppymallow
Callitriche hermaphroditica --- northern water-starwort
Callitriche heterophylla --- twoheaded water-starwort
Callitriche heterophylla ssp. heterophylla --- twoheaded water-starwort
Callitriche palustris --- vernal water-starwort
Calochortus eurycarpus --- white mariposa lily
Calochortus gunnisonii --- Gunnison's mariposa lily
Calochortus gunnisonii var. gunnisonii --- Gunnison's mariposa lily
Calochortus nuttallii --- sego lily
Caltha leptosepala --- white marsh marigold
Caltha leptosepala ssp. leptosepala --- white marsh marigold
Caltha leptosepala ssp. leptosepala var. leptosepala --- white marsh marigold
Calylophus lavandulifolius --- lavenderleaf sundrops
Calylophus serrulatus --- yellow sundrops
Calypso bulbosa --- fairy slipper
Calypso bulbosa var. americana --- fairy slipper
Calystegia macounii --- Macoun's false bindweed
Calystegia sepium --- hedge false bindweed
Calystegia sepium ssp. americana --- hedge false bindweed
Calystegia sepium ssp. angulata --- hedge false bindweed
Camassia quamash --- small camas
Camassia quamash ssp. utahensis --- Utah small camas
Camelina microcarpa --- littlepod false flax
Camelina sativa --- gold-of-pleasure
Camelina sativa ssp. sativa --- gold-of-pleasure
Camissonia andina --- Blackfoot River evening-primrose
Camissonia breviflora --- fewflower evening-primrose
Camissonia minor --- small evening-primrose
Camissonia parvula --- Lewis River suncup
Camissonia scapoidea --- Paiute suncup
Camissonia scapoidea ssp. scapoidea --- Paiute suncup
Camissonia subacaulis --- diffuseflower evening-primrose
Campanula aparinoides --- marsh bellflower
Campanula parryi --- Parry's bellflower
Campanula parryi var. parryi --- Parry's bellflower
Campanula rapunculoides --- rampion bellflower
Campanula rotundifolia --- bluebell bellflower
Campanula uniflora --- arctic bellflower
Cannabis sativa --- marijuana
Cannabis sativa ssp. sativa --- marijuana
Cannabis sativa ssp. sativa var. sativa --- marijuana
Capsella bursa-pastoris --- shepherd's purse
Caragana arborescens --- Siberian peashrub
Cardamine breweri --- Brewer's bittercress
Cardamine breweri var. breweri --- Brewer's bittercress
Cardamine breweri var. leibergii --- Leiberg's bittercress
Cardamine cordifolia --- heartleaf bittercress
Cardamine cordifolia var. cordifolia --- heartleaf bittercress
Cardamine oligosperma --- little western bittercress
Cardamine oligosperma var. oligosperma --- little western bittercress
Cardamine pensylvanica --- Pennsylvania bittercress
Cardaria chalapensis --- lenspod whitetop
Cardaria draba --- whitetop
Cardaria pubescens --- hairy whitetop
Carduus acanthoides --- spiny plumeless thistle
Carduus nutans --- nodding plumeless thistle
Carduus nutans ssp. macrolepis --- nodding plumeless thistle
Carex albonigra --- blackandwhite sedge
Carex alopecoidea --- foxtail sedge
Carex aquatilis --- water sedge
Carex aquatilis var. aquatilis --- water sedge
Carex arapahoensis --- Arapaho sedge
Carex atherodes --- wheat sedge
Carex athrostachya --- slenderbeak sedge
Carex aurea --- golden sedge
Carex backii --- Back's sedge
Carex bebbii --- Bebb's sedge
Carex bigelowii --- Bigelow's sedge
Carex blanda --- eastern woodland sedge
Carex bolanderi --- Bolander's sedge
Carex brevior --- shortbeak sedge
Carex brunnescens --- brownish sedge
Carex brunnescens ssp. brunnescens --- brownish sedge
Carex buxbaumii --- Buxbaum's sedge
Carex canescens --- silvery sedge
Carex canescens ssp. canescens --- silvery sedge
Carex capillaris --- hairlike sedge
Carex capitata --- capitate sedge
Carex capitata ssp. arctogena --- capitate sedge
Carex concinna --- low northern sedge
Carex crawei --- Crawe's sedge
Carex cusickii --- Cusick's sedge
Carex deweyana --- Dewey sedge
Carex diandra --- lesser panicled sedge
Carex disperma --- softleaf sedge
Carex douglasii --- Douglas' sedge
Carex duriuscula --- needleleaf sedge
Carex ebenea --- ebony sedge
Carex eburnea --- bristleleaf sedge
Carex echinata --- star sedge
Carex echinata ssp. echinata --- star sedge
Carex egglestonii --- Eggleston's sedge
Carex elynoides --- blackroot sedge
Carex emoryi --- Emory's sedge
Carex engelmannii --- Engelmann's sedge
Carex filifolia --- threadleaf sedge
Carex flava --- yellow sedge
Carex foenea --- dryspike sedge
Carex foenea var. foenea --- dryspike sedge
Carex garberi --- elk sedge
Carex geyeri --- Geyer's sedge
Carex granularis --- limestone meadow sedge
Carex granularis var. haleana --- limestone meadow sedge
Carex gravida --- heavy sedge
Carex gravida var. gravida --- heavy sedge
Carex gynocrates --- northern bog sedge
Carex hallii --- deer sedge
Carex haydeniana --- cloud sedge
Carex heteroneura --- different nerve sedge
Carex heteroneura var. brevisquama --- different nerve sedge
Carex heteroneura var. chalciolepis --- Holm sedge
Carex heteroneura var. epapillosa --- different nerve sedge
Carex heteroneura var. heteroneura --- different nerve sedge
Carex hoodii --- Hood's sedge
Carex hookeriana --- Hooker's sedge
Carex hystericina --- bottlebrush sedge
Carex illota --- sheep sedge
Carex incurviformis --- coastal sand sedge
Carex incurviformis var. danaensis --- coastal sand sedge
Carex inops --- long-stolon sedge
Carex inops ssp. heliophila --- sun sedge
Carex interior --- inland sedge
Carex intumescens --- greater bladder sedge
Carex jonesii --- Jones' sedge
Carex lachenalii --- twotipped sedge
Carex laeviculmis --- smoothstem sedge
Carex lapponica --- Lapland sedge
Carex lenticularis --- lakeshore sedge
Carex lenticularis var. lipocarpa --- Kellogg's sedge
Carex leporinella --- Sierra hare sedge
Carex leptalea --- bristlystalked sedge
Carex leptalea ssp. leptalea --- bristlystalked sedge
Carex limosa --- mud sedge
Carex livida --- livid sedge
Carex livida var. radicaulis --- livid sedge
Carex luzulina --- woodrush sedge
Carex luzulina var. ablata --- woodrush sedge
Carex luzulina var. atropurpurea --- woodrush sedge
Carex magellanica --- boreal bog sedge
Carex magellanica ssp. irrigua --- boreal bog sedge
Carex microglochin --- fewseeded bog sedge
Carex microptera --- smallwing sedge
Carex misandra --- shortleaved sedge
Carex nardina --- spike sedge
Carex nardina var. hepburnii --- Hepburn's sedge
Carex nebrascensis --- Nebraska sedge
Carex nelsonii --- Nelson's sedge
Carex neurophora --- alpine nerve sedge
Carex nigricans --- black alpine sedge
Carex norvegica --- Norway sedge
Carex norvegica ssp. inferalpina --- closedhead sedge
Carex norvegica ssp. stevenii --- Steven's sedge
Carex nova --- black sedge
Carex obtusata --- obtuse sedge
Carex occidentalis --- western sedge
Carex oreocharis --- grassyslope sedge
Carex pachystachya --- chamisso sedge
Carex parryana --- Parry's sedge
Carex parryana var. parryana --- Parry's sedge
Carex paysonis --- Payson's sedge
Carex peckii --- Peck's sedge
Carex pellita --- woolly sedge
Carex pelocarpa --- duskyseed sedge
Carex petasata --- Liddon sedge
Carex phaeocephala --- dunhead sedge
Carex ×physocarpioides --- russet sedge
Carex platylepis --- broadscale sedge
Carex podocarpa --- shortstalk sedge
Carex praeceptorium --- early sedge
Carex praegracilis --- clustered field sedge
Carex prairea --- prairie sedge
Carex praticola --- meadow sedge
Carex preslii --- Presl's sedge
Carex proposita --- Great Smoky Mountain sedge
Carex pseudoscirpoidea --- western singlespike sedge
Carex pyrenaica --- Pyrenean sedge
Carex pyrenaica ssp. pyrenaica --- Pyrenean sedge
Carex raynoldsii --- Raynolds' sedge
Carex retrorsa --- knotsheath sedge
Carex richardsonii --- Richardson's sedge
Carex rosea --- rosy sedge
Carex rossii --- Ross' sedge
Carex rupestris --- curly sedge
Carex rupestris var. drummondiana --- Drummond's sedge
Carex rupestris var. rupestris --- curly sedge
Carex sartwellii --- Sartwell's sedge
Carex sartwellii var. sartwellii --- Sartwell's sedge
Carex saxatilis --- rock sedge
Carex saximontana --- Rocky Mountain sedge
Carex scirpoidea --- northern singlespike sedge
Carex scopulorum --- mountain sedge
Carex scopulorum var. bracteosa --- mountain sedge
Carex scopulorum var. scopulorum --- mountain sedge
Carex simulata --- analogue sedge
Carex spectabilis --- showy sedge
Carex sprengelii --- Sprengel's sedge
Carex stenoptila --- riverbank sedge
Carex stipata --- owlfruit sedge
Carex stipata var. stipata --- owlfruit sedge
Carex subfusca --- brown sedge
Carex subnigricans --- nearlyblack sedge
Carex tahoensis --- Tahoe sedge
Carex tenera --- quill sedge
Carex torreyi --- Torrey's sedge
Carex utriculata --- Northwest Territory sedge
Carex vallicola --- valley sedge
Carex vallicola var. vallicola --- valley sedge
Carex vernacula --- native sedge
Carex vesicaria --- blister sedge
Carex vesicaria var. vesicaria --- blister sedge
Carex viridula --- little green sedge
Carex viridula ssp. viridula --- little green sedge
Carex vulpinoidea --- fox sedge
Carex vulpinoidea var. vulpinoidea --- fox sedge
Carum carvi --- caraway
Castilleja angustifolia --- northwestern Indian paintbrush
Castilleja angustifolia var. angustifolia --- northwestern Indian paintbrush
Castilleja applegatei --- wavyleaf Indian paintbrush
Castilleja applegatei ssp. martinii --- wavyleaf Indian paintbrush
Castilleja applegatei ssp. pinetorum --- wavyleaf Indian paintbrush
Castilleja crista-galli --- mountainside Indian paintbrush
Castilleja cusickii --- Cusick's Indian paintbrush
Castilleja flava --- yellow Indian paintbrush
Castilleja flava var. flava --- yellow Indian paintbrush
Castilleja linariifolia --- Wyoming Indian paintbrush
Castilleja miniata --- giant red Indian paintbrush
Castilleja miniata ssp. miniata --- giant red Indian paintbrush
Castilleja minor --- lesser Indian paintbrush
Castilleja minor ssp. minor --- lesser Indian paintbrush
Castilleja nivea --- snow Indian paintbrush
Castilleja pallescens --- pale Indian paintbrush
Castilleja pallescens var. pallescens --- pale Indian paintbrush
Castilleja pilosa --- parrothead Indian paintbrush
Castilleja pilosa var. longispica --- longspike Indian paintbrush
Castilleja pulchella --- beautiful Indian paintbrush
Castilleja rhexiifolia --- splitleaf Indian paintbrush
Castilleja sessiliflora --- downy paintedcup
Castilleja sulphurea --- sulphur Indian paintbrush
Catabrosa aquatica --- water whorlgrass
Caulanthus crassicaulis --- thickstem wild cabbage
Caulanthus crassicaulis var. crassicaulis --- thickstem wild cabbage
Ceanothus fendleri --- Fendler's ceanothus
Ceanothus herbaceus --- Jersey tea
Ceanothus martinii --- Martin's ceanothus
Ceanothus velutinus --- snowbrush ceanothus
Ceanothus velutinus var. velutinus --- snowbrush ceanothus
Celastrus scandens --- American bittersweet
Celtis laevigata --- sugarberry
Celtis laevigata var. reticulata --- netleaf hackberry
Celtis occidentalis --- common hackberry
Celtis occidentalis var. occidentalis --- common hackberry
Cenchrus longispinus --- mat sandbur
Centaurea biebersteinii --- spotted knapweed
Centaurea cyanus --- garden cornflower
Centaurea diffusa --- white knapweed
Centaurea iberica --- Iberian knapweed
Centaurea scabiosa --- greater knapweed
Centaurea solstitialis --- yellow star-thistle
Centaurium exaltatum --- desert centaury
Cerastium arvense --- field chickweed
Cerastium arvense ssp. fuegianum --- field chickweed
Cerastium arvense ssp. strictum --- field chickweed
Cerastium beeringianum --- Bering chickweed
Cerastium beeringianum ssp. earlei --- Bering chickweed
Cerastium brachypodum --- shortstalk chickweed
Cerastium fontanum --- common mouse-ear chickweed
Cerastium fontanum ssp. vulgare --- big chickweed
Cerastium nutans --- nodding chickweed
Cerastium nutans var. nutans --- nodding chickweed
Ceratocephala testiculata --- curveseed butterwort
Ceratophyllum demersum --- coon's tail
Cercocarpus intricatus --- littleleaf mountain mahogany
Cercocarpus ledifolius --- curl-leaf mountain mahogany
Cercocarpus ledifolius var. intercedens --- curl-leaf mountain mahogany
Cercocarpus ledifolius var. intermontanus --- curl-leaf mountain mahogany
Cercocarpus ledifolius var. ledifolius --- curl-leaf mountain mahogany
Cercocarpus montanus --- alderleaf mountain mahogany
Cercocarpus montanus var. montanus --- alderleaf mountain mahogany
Chaenactis douglasii --- Douglas' dustymaiden
Chaenactis douglasii var. alpina --- alpine dustymaiden
Chaenactis douglasii var. douglasii --- Douglas' dustymaiden
Chaenactis leucopsis --- alpine pincushion
Chaenactis stevioides --- Steve's dustymaiden
Chaetopappa ericoides --- rose heath
Chamaechaenactis scaposa --- fullstem
Chamaechaenactis scaposa var. parva --- fullstem
Chamaerhodos erecta --- little rose
Chamaerhodos erecta ssp. nuttallii --- Nuttall's little rose
Chamaesyce fendleri --- Fendler's sandmat
Chamaesyce geyeri --- Geyer's sandmat
Chamaesyce geyeri var. geyeri --- Geyer's sandmat
Chamaesyce glyptosperma --- ribseed sandmat
Chamaesyce maculata --- spotted sandmat
Chamaesyce missurica --- prairie sandmat
Chamaesyce serpens --- matted sandmat
Chamaesyce serpyllifolia --- thymeleaf sandmat
Chamaesyce serpyllifolia ssp. serpyllifolia --- thymeleaf sandmat
Chamaesyce stictospora --- slimseed sandmat
Chamerion angustifolium --- fireweed
Chamerion angustifolium ssp. angustifolium --- fireweed
Chamerion angustifolium ssp. circumvagum --- fireweed
Chamerion latifolium --- dwarf fireweed
Cheilanthes feei --- slender lipfern
Chelidonium majus --- celandine
Chelidonium majus var. majus --- celandine
Chenopodium album --- lambsquarters
Chenopodium album var. album --- lambsquarters
Chenopodium album var. striatum --- lateflowering goosefoot
Chenopodium atrovirens --- pinyon goosefoot
Chenopodium berlandieri --- pitseed goosefoot
Chenopodium berlandieri var. berlandieri --- pitseed goosefoot
Chenopodium berlandieri var. zschackii --- Zschack's goosefoot
Chenopodium botrys --- Jerusalem oak goosefoot
Chenopodium capitatum --- blite goosefoot
Chenopodium chenopodioides --- low goosefoot
Chenopodium desiccatum --- aridland goosefoot
Chenopodium foliosum --- leafy goosefoot
Chenopodium fremontii --- Fremont's goosefoot
Chenopodium fremontii var. fremontii --- Fremont's goosefoot
Chenopodium glaucum --- oakleaf goosefoot
Chenopodium hians --- hians goosefoot
Chenopodium humile --- marshland goosefoot
Chenopodium leptophyllum --- narrowleaf goosefoot
Chenopodium murale --- nettleleaf goosefoot
Chenopodium overi --- Over's goosefoot
Chenopodium pallescens --- slimleaf goosefoot
Chenopodium pratericola --- desert goosefoot
Chenopodium rubrum --- red goosefoot
Chenopodium salinum --- Rocky Mountain goosefoot
Chenopodium simplex --- mapleleaf goosefoot
Chenopodium standleyanum --- Standley's goosefoot
Chenopodium subglabrum --- smooth goosefoot
Chenopodium watsonii --- Watson's goosefoot
Chimaphila umbellata --- pipsissewa
Chimaphila umbellata ssp. occidentalis --- pipsissewa
Chionophila jamesii --- Rocky Mountain snowlover
Chloris verticillata --- tumble windmill grass
Chorispora tenella --- crossflower
Chrysothamnus greenei --- Greene's rabbitbrush
Chrysothamnus linifolius --- spearleaf rabbitbrush
Chrysothamnus vaseyi --- Vasey's rabbitbrush
Chrysothamnus viscidiflorus --- yellow rabbitbrush
Chrysothamnus viscidiflorus ssp. lanceolatus --- yellow rabbitbrush
Chrysothamnus viscidiflorus ssp. viscidiflorus --- yellow rabbitbrush
Chrysothamnus viscidiflorus ssp. viscidiflorus var. stenophyllus --- yellow rabbitbrush
Chrysothamnus viscidiflorus ssp. viscidiflorus var. viscidiflorus --- yellow rabbitbrush
Cicer arietinum --- chick pea
Cichorium intybus --- chicory
Cicuta bulbifera --- bulblet-bearing water hemlock
Cicuta maculata --- spotted water hemlock
Cicuta maculata var. angustifolia --- spotted water hemlock
Cinna latifolia --- drooping woodreed
Circaea alpina --- small enchanter's nightshade
Circaea alpina ssp. alpina --- small enchanter's nightshade
Circaea alpina ssp. pacifica --- small enchanter's nightshade
Circaea lutetiana --- broadleaf enchanter's nightshade
Circaea lutetiana ssp. canadensis --- broadleaf enchanter's nightshade
Cirsium aridum --- desert thistle
Cirsium arvense --- Canada thistle
Cirsium barnebyi --- Barneby's thistle
Cirsium canescens --- prairie thistle
Cirsium canovirens --- graygreen thistle
Cirsium drummondii --- dwarf thistle
Cirsium eatonii --- Eaton's thistle
Cirsium ×erosum --- glory thistle
Cirsium flodmanii --- Flodman's thistle
Cirsium foliosum --- elk thistle
Cirsium hookerianum --- white thistle
Cirsium ochrocentrum --- yellowspine thistle
Cirsium ownbeyi --- Ownbey's thistle
Cirsium pulcherrimum --- Wyoming thistle
Cirsium remotifolium --- fewleaf thistle
Cirsium remotifolium ssp. oregonense --- fewleaf thistle
Cirsium scariosum --- meadow thistle
Cirsium scariosum var. scariosum --- meadow thistle
Cirsium scopulorum --- mountain thistle
Cirsium subniveum --- Jackson Hole thistle
Cirsium tioganum --- stemless thistle
Cirsium tioganum var. coloradense --- Colorado thistle
Cirsium tioganum var. tioganum --- Tioga thistle
Cirsium undulatum --- wavyleaf thistle
Cirsium undulatum var. undulatum --- wavyleaf thistle
Cirsium vulgare --- bull thistle
Cistanthe rosea --- rosy pussypaws
Cistanthe umbellata --- Mt. Hood pussypaws
Cistanthe umbellata var. caudicifera --- Mt. Hood pussypaws
Clarkia pulchella --- pinkfairies
Claytonia lanceolata --- lanceleaf springbeauty
Claytonia lanceolata var. flava --- lanceleaf springbeauty
Claytonia lanceolata var. lanceolata --- lanceleaf springbeauty
Claytonia lanceolata var. multiscapa --- lanceleaf springbeauty
Claytonia megarhiza --- alpine springbeauty
Claytonia megarhiza var. bellidifolia --- alpine springbeauty
Claytonia megarhiza var. megarhiza --- alpine springbeauty
Claytonia perfoliata --- miner's lettuce
Claytonia perfoliata ssp. perfoliata --- miner's lettuce
Claytonia rosea --- western springbeauty
Claytonia rubra --- redstem springbeauty
Claytonia rubra ssp. rubra --- redstem springbeauty
Claytonia umbellata --- Great Basin springbeauty
Clematis columbiana --- rock clematis
Clematis columbiana var. columbiana --- rock clematis
Clematis columbiana var. tenuiloba --- rock clematis
Clematis hirsutissima --- hairy clematis
Clematis hirsutissima var. hirsutissima --- hairy clematis
Clematis hirsutissima var. scottii --- Scott's clematis
Clematis ligusticifolia --- western white clematis
Clematis ligusticifolia var. ligusticifolia --- western white clematis
Clematis occidentalis --- western blue virginsbower
Clematis occidentalis var. grosseserrata --- western blue virginsbower
Cleome lutea --- yellow spiderflower
Cleome lutea var. lutea --- yellow spiderflower
Cleome multicaulis --- slender spiderflower
Cleome serrulata --- Rocky Mountain beeplant
Coeloglossum viride --- longbract frog orchid
Coeloglossum viride var. virescens --- longbract frog orchid
Collinsia parviflora --- maiden blue eyed Mary
Collomia debilis --- alpine collomia
Collomia debilis var. debilis --- alpine collomia
Collomia debilis var. trifida --- alpine collomia
Collomia grandiflora --- grand collomia
Collomia linearis --- tiny trumpet
Collomia tenella --- diffuse collomia
Comandra umbellata --- bastard toadflax
Comandra umbellata ssp. pallida --- pale bastard toadflax
Comarum palustre --- purple marshlocks
Commelina erecta --- whitemouth dayflower
Commelina erecta var. angustifolia --- whitemouth dayflower
Conimitella williamsii --- Williams' miterwort
Conioselinum scopulorum --- Rocky Mountain hemlockparsley
Conium maculatum --- poison hemlock
Conringia orientalis --- hare's ear mustard
Convolvulus arvensis --- field bindweed
Conyza canadensis --- Canadian horseweed
Conyza canadensis var. canadensis --- Canadian horseweed
Conyza canadensis var. glabrata --- Canadian horseweed
Corallorrhiza maculata --- summer coralroot
Corallorrhiza maculata var. maculata --- summer coralroot
Corallorrhiza maculata var. occidentalis --- summer coralroot
Corallorrhiza mertensiana --- Pacific coralroot
Corallorrhiza striata --- hooded coralroot
Corallorrhiza striata var. striata --- hooded coralroot
Corallorrhiza striata var. vreelandii --- Vreeland's coralroot
Corallorrhiza trifida --- yellow coralroot
Corallorrhiza wisteriana --- spring coralroot
Cordylanthus ramosus --- bushy bird's beak
Coreopsis lanceolata --- lanceleaf tickseed
Coreopsis tinctoria --- golden tickseed
Coreopsis tinctoria var. tinctoria --- golden tickseed
Corispermum americanum --- American bugseed
Corispermum americanum var. americanum --- American bugseed
Corispermum villosum --- hairy bugseed
Corispermum welshii --- Welsh's bugseed
Cornus canadensis --- bunchberry dogwood
Cornus sericea --- redosier dogwood
Cornus sericea ssp. sericea --- redosier dogwood
Coronilla varia --- purple crownvetch
Corydalis aurea --- scrambled eggs
Corydalis curvisiliqua --- curvepod fumewort
Corydalis curvisiliqua ssp. occidentalis --- curvepod fumewort
Corylus cornuta --- beaked hazelnut
Corylus cornuta var. cornuta --- beaked hazelnut
Cosmos bipinnatus --- garden cosmos
Crassula saginoides --- wrinkleseed pygmyweed
Crassula solierii --- smoothseed pygmyweed
Crataegus chrysocarpa --- fireberry hawthorn
Crataegus douglasii --- black hawthorn
Crataegus douglasii var. douglasii --- black hawthorn
Crataegus erythropoda --- cerro hawthorn
Crataegus rivularis --- river hawthorn
Crataegus succulenta --- fleshy hawthorn
Crepis acuminata --- tapertip hawksbeard
Crepis acuminata ssp. acuminata --- tapertip hawksbeard
Crepis atribarba --- slender hawksbeard
Crepis atribarba ssp. originalis --- slender hawksbeard
Crepis elegans --- elegant hawksbeard
Crepis intermedia --- limestone hawksbeard
Crepis modocensis --- Modoc hawksbeard
Crepis modocensis ssp. modocensis --- Modoc hawksbeard
Crepis nana --- dwarf alpine hawksbeard
Crepis nana ssp. nana --- dwarf alpine hawksbeard
Crepis occidentalis --- largeflower hawksbeard
Crepis occidentalis ssp. costata --- largeflower hawksbeard
Crepis occidentalis ssp. occidentalis --- largeflower hawksbeard
Crepis runcinata --- fiddleleaf hawksbeard
Crepis runcinata ssp. glauca --- fiddleleaf hawksbeard
Crepis runcinata ssp. runcinata --- fiddleleaf hawksbeard
Crepis tectorum --- narrowleaf hawksbeard
Croton texensis --- Texas croton
Croton texensis var. texensis --- Texas croton
Crypsis alopecuroides --- foxtail pricklegrass
Cryptantha affinis --- quill cryptantha
Cryptantha ambigua --- basin cryptantha
Cryptantha caespitosa --- tufted cryptantha
Cryptantha cana --- mountain cryptantha
Cryptantha celosioides --- buttecandle
Cryptantha cinerea --- James' cryptantha
Cryptantha cinerea var. jamesii --- James' cryptantha
Cryptantha circumscissa --- cushion cryptantha
Cryptantha circumscissa var. circumscissa --- cushion cryptantha
Cryptantha fendleri --- sanddune cryptantha
Cryptantha flava --- Brenda's yellow cryptantha
Cryptantha flavoculata --- roughseed cryptantha
Cryptantha gracilis --- narrowstem cryptantha
Cryptantha kelseyana --- Kelsey's cryptantha
Cryptantha minima --- little cryptantha
Cryptantha rollinsii --- Rollins' cryptantha
Cryptantha scoparia --- Pinyon Desert cryptantha
Cryptantha sericea --- silky cryptantha
Cryptantha spiculifera --- Snake River cryptantha
Cryptantha stricta --- Yampa River cryptantha
Cryptantha subcapitata --- Wallowa cryptantha
Cryptantha thyrsiflora --- calcareous cryptantha
Cryptantha torreyana --- Torrey's cryptantha
Cryptantha virgata --- miner's candle
Cryptantha watsonii --- Watson's cryptantha
Cryptogramma acrostichoides --- American rockbrake
Cryptogramma stelleri --- fragile rockbrake
Cucurbita foetidissima --- Missouri gourd
Cuscuta approximata --- alfalfa dodder
Cuscuta californica --- chaparral dodder
Cuscuta californica var. breviflora --- chaparral dodder
Cuscuta epithymum --- clover dodder
Cuscuta gronovii --- scaldweed
Cuscuta gronovii var. gronovii --- scaldweed
Cuscuta indecora --- bigseed alfalfa dodder
Cuscuta indecora var. neuropetala --- bigseed dodder
Cuscuta megalocarpa --- bigfruit dodder
Cuscuta plattensis --- prairie dodder
Cycloloma atriplicifolium --- winged pigweed
Cymopterus acaulis --- plains springparsley
Cymopterus acaulis var. acaulis --- plains springparsley
Cymopterus bulbosus --- bulbous springparsley
Cymopterus evertii --- Evert's springparsley
Cymopterus lapidosus --- talus springparsley
Cymopterus longipes --- longstalk springparsley
Cymopterus montanus --- mountain springparsley
Cymopterus nivalis --- snowline springparsley
Cymopterus williamsii --- Williams' springparsley
Cynoglossum officinale --- gypsyflower
Cyperus acuminatus --- tapertip flatsedge
Cyperus bipartitus --- slender flatsedge
Cyperus erythrorhizos --- redroot flatsedge
Cyperus fendlerianus --- Fendler's flatsedge
Cyperus schweinitzii --- Schweinitz's flatsedge
Cyperus squarrosus --- bearded flatsedge
Cypripedium fasciculatum --- clustered lady's slipper
Cypripedium montanum --- mountain lady's slipper
Cypripedium parviflorum --- lesser yellow lady's slipper
Cypripedium pubescens --- greater yellow lady's slipper
Cypripedium pubescens var. pubescens --- greater yellow lady's slipper
Cystopteris fragilis --- brittle bladderfern

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