List of Canadian plants by genus C

Below is a list of Canadian plants by genus. Due to the vastness of Canada's biodiversity, this page is divided.

Many of the plants seen in Canada are introduced, either intentionally or accidentally. N indicated native and X indicated exotic. Those plants whose status is unknown are marked with a ?.

A | B | C | D | E | F | G | H | I J K | L | M | N | O | P Q | R | S | T | U V W | X Y Z

Ca

 * Cakile — searockets
 * Cakile edentula — American searocket
 * Calamagrostis — reedgrasses
 * Calamagrostis canadensis — Canada bluejoint, Canada reedgrass, Langsdorff's reedgrass, Macoun's reedgrass
 * Calamagrostis deschampsioides — circumpolar reedgrass
 * Calamagrostis lapponica — Lapland reedgrass
 * Calamagrostis purpurascens — purple reedgrass
 * Calamagrostis stricta subsp. inexpansa — bog reedgrass, northern reedgrass
 * Calamintha — calamints
 * Calamintha arkansana — low calamint, savoury, wild calamint, limestone wild basil
 * Calamovilfa — sandreeds
 * Calamovilfa longifolia var. magna — prairie sandreed
 * Calla — callas
 * Calla palustris — wild calla, water arum
 * Callitriche — water-starworts
 * Callitriche hermaphroditica — narrowleaf water-starwort, northern water-starwort, autumnal water-starwort
 * Callitriche heterophylla — larger water-starwort
 * Callitriche palustris — vernal water-starwort
 * Callitropsis —
 * Callitropsis nootkatensis — Alaska yellow cedar, Nootka false-cypress, yellow cedar
 * Calopogon — grass-pinks
 * Calopogon tuberosus — tuberous grass-pink
 * Caltha — marsh marigolds
 * Caltha natans — floating marsh marigold
 * Caltha palustris — marsh marigold, cowslip, kingcup, cowflock
 * Calypso — calypsoes
 * Calypso bulbosa — calypso, fairy-slipper, nymph-of-the-north
 * Calystegia — bindweeds
 * Calystegia sepium — hedge bindweed, wild morning glory
 * Calystegia spithamaea — low bindweed
 * Camassia — hyacinths
 * Camassia scilloides — wild hyacinth Threatened
 * Campanula — bellflowers
 * Campanula aparinoides — marsh bellflower, bedstraw bedflower, marsh harebell
 * Campanula rotundifolia — American harebell, Scottish bluebell, bluebells of Scotland
 * Campanulastrum — bellflowers
 * Campanulastrum americanum — tall bellflower, American bellflower
 * Campsis — trumpet vines
 * Campsis radicans — trumpet vine, trumpet creeper
 * Canadanthus —
 * Canadanthus modestus — Canada aster, western bog aster, great northern aster, purple northern aster
 * Cardamine — toothworts
 * Cardamine bulbosa — spring cress, bulbous cress
 * Cardamine concatenata — cutleaf toothwort, five-parted toothwort, slender toothwort
 * Cardamine diphylla — twoleaf toothwort, broadleaf toothwort, crinkleroot
 * Cardamine douglasii — purple cress, limestone bittercress
 * Cardamine parviflora — small-flowered bittercress, sand bittercress
 * Cardamine pensylvanica — Pennsylvania bittercress, Quaker bittercress
 * Cardamine pratensis var. angustifolia — meadow bittercress
 * Cardamine pratensis var. palustris — cuckoo-flower, lady's smock
 * Carex spp.
 * see List of Carex species in Canada
 * Carpinus — hornbeams
 * Carpinus caroliniana — ironwood, American hornbeam, blue beech, musclewood
 * Carya — hickories
 * Carya cordiformis — bitternut hickory, swamp hickory, pignut hickory, yellowbud hickory
 * Carya glabra — pignut hickory, sweet pignut, red hickory
 * Carya laciniosa — big shellbark hickory
 * Carya ovata — shagbark hickory, upland hickory, shellbark hickory


 * Castanea — chestnuts
 * Castanea dentata — American chestnut, toothed chestnut Endangered
 * Castilleja — Indian paintbrushes
 * Castilleja coccinea — scarlet Indian paintbrush, scarlet painted-cup
 * Castilleja raupii — Raup's painted-cup, Raup's Indian paintbrush
 * Castilleja septentrionalis — northern paintbrush, Labrador Indian paintbrush
 * Catabrosa — brook grasses
 * Catabrosa aquatica — brook grass, water hairgrass
 * Caulophyllum — cohoshes
 * Caulophyllum giganteum
 * Caulophyllum thalictroides — blue cohosh

Ce

 * Ceanothus — New Jersey teas
 * Ceanothus americanus — New Jersey tea, redroot, white snowball, mountainsweet
 * Ceanothus herbaceus — narrowleaf New Jersey tea, prairie redroot, inland ceanothus
 * Celastrus — bittersweets
 * Celastrus scandens — climbing bittersweet, American bittersweet
 * Celtis — hackberries
 * Celtis occidentalis — sugarberry, northern hackberry, false elm, common hackberry
 * Celtis tenuifolia — dwarf hackberry Threatened
 * Cenchrus — sandbars
 * Cenchrus longispinus — longspine sandbur
 * Cephalanthus — buttonbushes
 * Cephalanthus occidentalis — common buttonbush
 * Cerastium — mouse-ear chickweeds
 * Cerastium alpinum — alpine mouse-ear chickweed, alpine chickweed, woolly alpine chickweed
 * Cerastium arvense subsp. strictum — field mouse-ear chickweed, meadow mouse-ear chickweed, prairie mouse-ear chickweed (other subspecies, including the type subsp. arvense, are considered introduced)
 * Cerastium brachypodum — shortstalk mouse-ear chickweed
 * Cerastium nutans — nodding mouse-ear chickweed
 * Cerastium velutinum — long-hairy chickweed
 * Ceratophyllum — hornworts
 * Ceratophyllum demersum — common hornwort, coontail
 * Ceratophyllum echinatum — spineless hornwort

Ch

 * Chaerophyllum — chervils
 * Chaerophyllum procumbens var. procumbens — spreading chervil
 * Chaerophyllum procumbens var. shortii
 * Chamaedaphne — leatherleafs
 * Chamaedaphne calyculata — leatherleaf, dwarf cassandra
 * Chamaesyce — spurges
 * Chamaesyce polygonifolia — seaside spurge, seaside sandmat, sea milk-purslane
 * Chamaesyce vermiculata — wormseed spurge, wormseed sandmat, hairy spurge, hairy-stemmed milk-purslane
 * Chelone — turtleheads
 * Chelone glabra — white turtlehead
 * Chenopodium — goosefeet
 * Chenopodium bushianum — village goosefoot
 * Chenopodium capitatum — strawberry blite, strawberry-spinach, Indian paint, Indian ink, strawberry goosefoot
 * Chenopodium foggii — Fogg's goosefoot
 * Chenopodium leptophyllum — narrowleaf goosefoot
 * Chenopodium pratericola — pale goosefoot, narrowleaf goosefoot, desert goosefoot
 * Chenopodium salinum
 * Chenopodium simplex — mapleleaf goosefoot, giantseed goosefoot
 * Chenopodium standleyanum — Standley's goosefoot
 * Chimaphila — pipsissewas
 * Chimaphila maculata — striped pipsissewa, striped wintergreen, spotted wintergreen, striped prince's pine Endangered
 * Chimaphila umbellata — pipsissewa, prince's pine
 * Chrysanthemum — daisies
 * Chrysanthemum arcticum — arctic daisy
 * Chrysosplenium — saxifrages
 * Chrysosplenium americanum — golden saxifrage, American watermat, American golden saxifrage
 * Chrysosplenium tetrandrum — alternate-leaf watermat, northern golden saxifrage, northern golden-carpet

Ci

 * Cicuta — water hemlocks
 * Cicuta bulbifera — bulb-bearing water hemlock
 * Cicuta maculata — spotted water hemlock, spotted cowbane, musquash-root, beaver-poison
 * Cicuta virosa — MacKenzie's water hemlock, northern water hemlock
 * Cimicifuga — cohoshes
 * Cimicifuga racemosa — black cohosh, black snakeroot, black bugbane
 * Cinna — wood reedgrasses
 * Cinna arundinacea — stout wood reedgrass
 * Cinna latifolia — slender wood reedgrass, drooping woodreed, broadleaf woodgrass
 * Circaea — enchanter's nightshades
 * Circaea alpina — dwarf enchanter's nightshade, small enchanter's nightshade
 * Circaea lutetiana — Canada enchanter's nightshade, southern broadleaf enchanter's nightshade
 * Cirsium — thistles
 * Cirsium discolor — pasture thistle, field thistle
 * Cirsium drummondii — Drummond's thistle, short-stem thistle, dwarf thistle
 * Cirsium flodmanii — prairie thistle, woolly thistle, Flodman's thistle
 * Cirsium hillii — Hill's thistle Threatened
 * Cirsium muticum — swamp thistle, dunce nettle, horsetops
 * Cirsium pitcheri — Pitcher's thistle, sand dune thistle

Cl

 * Cladium — twigrushes
 * Cladium mariscoides — twigrush, smooth sawgrass
 * Claytonia — spring beauties
 * Claytonia caroliniana — Carolina spring beauty
 * Claytonia virginica — eastern spring beauty, narrowleaf spring beauty, Virginia spring beauty
 * Clematis — virgin's-bowers
 * Clematis occidentalis — western blue virgin's-bower, purple clematis, rock clematis, purple virgin's-bower
 * Clematis virginiana — Virginia virgin's-bower, Devil's darning-needles
 * Clinopodium — dog mints
 * X Clinopodium acinos (syn. Acinos arvensis) – mother-of-thyme, spring savoury, basil thyme
 * Clinopodium vulgare — dog mint, wild basil, cushion calamint
 * Clintonia — blue-bead lilies
 * Clintonia borealis — blue-bead lily, cornlily, poisonberry, yellow clintonia

Co

 * Coeloglossum — green orchises
 * Coeloglossum viride var. viriscens — long-bract green orchis
 * Coeloglossum viride var. viride — bracted orchid
 * Collinsia — horsebalms
 * Collinsia canadensis — Canada horsebalm, northern horsebalm, stoneroot, richweed
 * Collinsia parviflora — bluelips, small blue-eyed Mary
 * Collomia — glueseeds
 * Collomia linearis — glueseed, narrowleaf collomia
 * Comandra — comandras
 * Comandra umbellata — bastard toadflax, star toadflax
 * Comptonia — sweetferns
 * Comptonia peregrina — sweetfern
 * Conioselinum — hemlock parsleys
 * Conioselinum chinense — hemlock parsley
 * Conopholis— squawroots
 * Conopholis americana — squawroot
 * Conyza — fleabanes
 * Conyza canadensis — Canada fleabane, horseweed, butterweed
 * Coptis — goldthreads
 * Coptis trifolia — goldthread, canker-root, yellow snakeroot
 * Corallorrhiza — coralroots
 * Corallorrhiza maculata — spotted coralroot
 * Corallorhiza odontorhiza — autumn coralroot
 * Corallorrhiza striata — striped coralroot
 * Corallorrhiza trifida — early coralroot, pale coralroot, northern coralroot
 * Coreopsis — tickseeds
 * Coreopsis lanceolata — lanceleaf tickseed, garden coreopsis, long-stalked coreopsis
 * Coreopsis tripteris — tall coreopsis
 * Corispermum — bugseeds
 * Corispermum americanum — American bugseed
 * Corispermum hookeri — Hooker's bugseed
 * Corispermum pallasii — Pallas' bugseed
 * Corispermum villosum — hairy bugseed
 * Cornus — dogwoods
 * Cornus alternifolia — alternate-leaf dogwood, pagoda dogwood, green osier
 * Cornus amomum subsp. amomum — silky dogwood, red willow, swamp dogwood
 * Cornus amomum subsp. obliqua
 * Cornus canadensis — Canada bunchberry, crackerberry, dwarf cornel
 * Cornus drummondii — roughleaf dogwood, Drummond's dogwood
 * Cornus florida — eastern flowering dogwood, common white dogwood
 * Cornus foemina — stiff dogwood, English dogwood, stiff cornel
 * Cornus rugosa — roundleaf dogwood
 * Cornus stolonifera — red-osier dogwood
 * Corydalis — corydalises
 * Corydalis aurea — golden corydalis
 * Corydalis flavula — yellow corydalis
 * Corydalis sempervirens — pale corydalis
 * Corylus — hazelnuts
 * Corylus americana — American hazelnut, American filbert
 * Corylus cornuta — beaked hazelnut, beaked filbert

Cr

 * Crassula — pygmyweeds
 * Crassula aquatica — water pygmyweed
 * Crataegus — hawthorns
 * Crataegus apiomorpha
 * Crataegus beata
 * Crataegus brainerdii — Brainerd's hawthorn
 * Crataegus calpodendron — pear hawthorn
 * Crataegus chrysocarpa var. aboriginum
 * Crataegus chrysocarpa var. chrysocarpa — fireberry hawthorn, roundleaf hawthorn
 * Crataegus chrysocarpa var. phoenicea
 * Crataegus coccinea var. coccinea — scarlet hawthorn
 * Crataegus coccinea var. fulleriana — Fuller's hawthorn
 * Crataegus cognata — white-anthered frosted hawthorn
 * Crataegus comptacta
 * Crataegus crus-galli — cockspur hawthorn
 * Crataegus dilatata — broadleaf hawthorn
 * Crataegus dissona
 * Crataegus dodgei var. dodgei — Dodge's hawthorn
 * Crataegus dodgei var. flavida
 * Crataegus douglasii — black hawthorn, Douglas' hawthorn
 * Crataegus flabellata — fanleaf hawthorn, Bosc's thorn, New England hawthorn
 * Crataegus formosa
 * Crataegus irrasa — unshorn thorn, Blanchard's thorn
 * Crataegus lumaria
 * Crataegus macracantha — longthorn hawthorn, largethorn hawthorn
 * Crataegus macrosperma — bigfruit hawthorn, variable thorn
 * Crataegus magniflora
 * Crataegus margeretta
 * Crataegus mollis — downy hawthorn, red haw
 * Crataegus pennsylvanica
 * Crataegus perjucunda — Middlesex frosted hawthorn
 * Crataegus persimilis — plumleaf hawthorn
 * Crataegus populnea
 * Crataegus pringlei — Pringle's hawthorn
 * Crataegus pruinosa var. parvula
 * Crataegus pruinosa var. pruinosa — waxy-fruit hawthorn, frosted hawthorn
 * Crataegus punctata — dotted hawthorn
 * Crataegus rugosa — broadleaf frosted hawthorn
 * Crataegus scabrida
 * Crataegus schuettei — royal hawthorn
 * Crataegus submollis — Québec hawthorn, Emerson's hawthorn
 * Crataegus suborbiculata — Caughuawaga hawthorn
 * Crataegus succulenta — fleshy hawthorn, longspine hawthorn
 * Crataegus tenax
 * Cryptogramma — rockbrakes
 * Cryptogramma acrostichoides — American rockbrake, parsleyfern, mountain parsley
 * Cryptogramma stelleri — Steller's rockbrake, slender cliffbrake, fragile rockbrake
 * Cryptotaenia — honeworts
 * Cryptotaenia canadensis — Canada honewort

Cu

 * Cuscuta — dodders
 * Cuscuta campestris — field dodder
 * Cuscuta cephalanthi — buttonbush dodder
 * Cuscuta coryli — hazel dodder
 * Cuscuta gronovii — common dodder, scaldweed, swamp dodder, Gronovius dodder

Cy

 *  Cycloloma — pigweeds
 * Cycloloma atriplicifolium — winged pigweed
 * Cynoglossum — comfreys
 * Cynoglossum boreale — northern wild comfrey
 * Cyperus — flatsedges
 * Cyperus bipartitus — river cyperus, shining flatsedge
 * Cyperus dentatus — toothed umbrella-sedge
 * Cyperus diandrus — umbrella sedge
 * Cyperus erythrorhizos — redroot flatsedge
 * Cyperus esculentus — yellow nutgrass, yellow umbrella sedge, chufa flatsedge
 * Cyperus flavescens — yellow cyperus
 * Cyperus houghtonii — Houghton's flatsedge, Houghton's cyperus
 * Cyperus lupulinus subsp. macilentus
 * Cyperus odoratus — rusty flatsedge
 * Cyperus schweinitzii — Schweinitz' umbrella sedge, Schweinitz' flatsedge
 * Cyperus squarrosus — awned cyperus
 * Cyperus strigosus — straw-coloured flatsedge
 * Cypripedium — lady's-slippers
 * Cypripedium acaule — pink lady's-slipper, pink moccasin flower
 * Cypripedium arietinum — ram's-head lady's-slipper
 * Cypripedium candidum — small white lady's-slipper Endangered
 * Cypripedium parviflorum var. makasin — northern small-flowered yellow lady's-slipper
 * Cypripedium parviflorum var. pubescens — large yellow lady's-slipper, yellow moccasin flower, flat-petalled yellow lady's-slipper, golden slipper, whip-poor-will's shoe
 * Cypripedium passerinum — sparrow's-egg lady's-slipper, Franklin's lady's-slipper
 * Cypripedium reginae — showy lady's-slipper, queen lady's-slipper
 * Cystopteris —
 * Cystopteris bulbifera — bulblet bladder fern
 * Cystopteris fragilis — fragile fern, brittle bladder fern
 * Cystopteris laurentiana — Laurentian bladder fern, Laurentian fragile fern
 * Cystopteris montana — mountain bladder fern
 * Cystopteris protrusa — lowland brittle fern
 * Cystopteris tenuis — MacKay's brittle fern