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.
- 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 — sandburs
- 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
- 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