Canada's Plant Hardiness Site

Cabomba
Cacaliopsis
Cakile
Calamagrostis
Calamovilfa
Calandrinia
Calceolaria
Calendula
Calla
Callicarpa
Callirhoë
Callistemon
Callistephus
Callitriche
Calluna
Calocedrus
Calochortus
Calopogon
Caltha
Calycadenia
Calycanthus
Calydorea
Calypso
Calystegia
Camassia
Camelina
Camellia
Camissonia
Campanula
Campsis
Canadanthus
Canella
Canna
Cannabis
Capnoides
Capsella
Caragana
Cardamine
Cardiocrinum
Cardionema
Carduus
Carex
Carlina
Carnegiea
Carpenteria
Carpinus
Carthamus
Carum
Carya
Caryopteris
Cassiope
Castanea
Castilleja
Casuarina
Catabrosa
Catalpa
Catananche
Caulanthus
Caulophyllum
Ceanothus
Cedrus
Celastrus
Celosia
Celtica
Celtis
Cenchrus
Centaurea
Centaurium
Centranthus
Centromadia
Cephalanthera
Cephalanthus
Cephalaria
Cephalotaxus
Cerastium
Ceratocephala
Ceratophyllum
Ceratostigma
Cercidiphyllum
Cercis
Cercocarpus
Cerinthe
Cestrum
Chaenactis
Chaenomeles
Chaenorhinum
Chaerophyllum
Chamaecrista
Chamaecyparis
Chamaecytisus
Chamaedaphne
Chamaelirium
Chamaemelum
Chamaerhodos
Chamaerops
Chamaesyce
Chamerion
Chasmanthium
Cheilanthes
Chelidonium
Chelone
Chenopodiastrum
Chenopodium
Cherleria
Chiastophyllum
Chimaphila
Chimonanthus
Chionanthus
Chionodoxa
Choisya
Chondrilla
Chorispora
Chorizanthe
Chrysanthemum
Chrysogonum
Chrysojasminum
Chrysolepis
Chrysopsis
Chrysosplenium
Chrysothamnus
Cicer

Cichorium
Cicuta
Cinna
Cinnamomum
Circaea
Cirsium
Cissus
Cistanthe
Cistus
Citrullus
Cladium
Cladrastis
Clarkia
Claytonia
Cleistes
Clematis
Cleome
Clerodendrum
Clethra
Cliftonia
Clinopodium
Clintonia
Clitoria
Cnidium
Coccothrinax
Cocculus
Cochlearia
Codonopsis
Coix
Colchicum
Coleanthus
Collinsia
Collinsonia
Collomia
Colutea
Comandra
Comarostaphylis
Comarum
Comastoma
Commelina
Comptonia
Conimitella
Conioselinum
Conium
Conoclinium
Conopholis
Conradina
Conringia
Consolea
Consolida
Convallaria
Convolvulus
Coptidium
Coptis
Corallorhiza
Cordylanthus
Corema
Coreopsis
Coriandrum
Corispermum
Cornus
Corokia
Coronilla
Corrigiola
Cortaderia
Corydalis
Corylopsis
Corylus
Corynabutilon
Corynephorus
Coryphantha
Cosmos
Cota
Cotinus
Cotoneaster
Cotula
Crambe
Crassula
Crataegus
Crepis
Crinodendron
Crinum
Crocanthemum
Crocidium
Crocosmia
Crocus
Croomia
Crossopetalum
Croton
Crypsis
Cryptantha
Cryptogramma
Cryptomeria
Cryptotaenia
Cucumis
Cucurbita
Cunninghamia
Cuphea
Cupressus
Cuscuta
Cyclachaena
Cyclamen
Cycloloma
Cydonia
Cylindropuntia
Cymbalaria
Cymbopogon
Cymophyllus
Cymopterus
Cynanchum
Cynara
Cynodon
Cynoglossum
Cynosurus
Cyperus
Cypripedium
Cyrilla
Cyrtomium
Cystopteris
Cytisus