Cercis siliquastrum

Cercis siliquastrum 'Alba'

var. Alba

White-flowered Judas Tree

Cercocarpus betuloides

Cercocarpus betuloides

California Mountain Mahogany, Mountain Mahogany, Western Mountain Mahogany

Chaenomeles japonica

Chaenomeles japonica Sargentii

var. sargentii

Dwarf Flowering Quince, Dwarf Quince, Flowering Quince, Japanese Flowering Quince, Maule's Quince

Chaenomeles speciosa

Chaenomeles speciosa

Chinese Flowering Quince, Flowering Quince

Chamaecrista nictitans

Chamaecrista nictitans

Sensitive Partridge Pea, Sensitive Pea

Chamaecyparis pisifera

Chamaecyparis pisifera

Japanese False Cypress, Sawara False Cypress

Chasmanthium latifolium

Chasmanthium latifolium

Indian Wood Oats, Inland Wood Oats, Northern Sea Oats, Wild Oats, Sea Oats, River Oats

Chelidonium majus

Chelidonium majus

Celandine, Greater Celandine, Swallow Wort

Chenopodium giganteum

Chenopodium giganteum

Chionanthus pygmaeus

Chionanthus pygmaeus

Pygmy Fringetree

Chrysolepis chrysophylla

Chrysolepis chrysophylla

Giant Chinquapin, Golden Chinquapin, Western Chinquapin

Citrus medica

Citrus medica

Citron

Claytonia perfoliata

Claytonia perfoliata

Miner's Lettuce

Clematis paniculata

Clematis paniculata

Sweet Autumn Clematis

Clematis texensis

Clematis texensis

Scarlet Clematis, Scarlet Leather Flower

Clematis viticella

Clematis viticella

Italian Clematis, Italian Leather Flower

Clethra alnifolia

Clethra alnifolia

Coastal Sweetpepperbush, Summer Sweet, Summer-sweet, Summersweet Clethra, Sweet Pepperbush

Clianthus puniceus

Clianthus puniceus alba

var. Alba

White Glory Pea, White Northern Kakabeak, White Parrots Beak

Clianthus puniceus

Clianthus puniceus rosea

var. Rosea

Pink Glory Pea, Pink Kaka Beak, Pink Parrot Beak

Clitoria ternatea

Clitoria ternatea

Asian Pigeonwings, Blue Pea, Butterfly Pea

Comptonia peregrina

Comptonia peregrina

Sweet Fern, Sweet-fern, Sweetfern

Coreopsis lanceolata

Coreopsis lanceolata Sunburst

'Sunburst'

Lance Coreopsis, Lanceleaf Tickseed, Sunburst Lance-leaf Coreopsis

Cornus drummondii

Cornus drummondii

Drummond's Dogwood, Roughleaf Dogwood

Cornus florida

Cornus florida Southern

Southern

Flowering Dogwood, White Flowering Dogwood

Cornus florida

Cornus florida 'Rubra'

'Rubra'

Pink Flowering Dogwood

Cornus kousa

Cornus kousa kousa

Kousa Dogwood

Cornus kousa

Cornus kousa chinensis

ssp. chinensis

Chinensis Kousa Dogwood, Chinese Dogwood

Corylus cornuta

Corylus cornuta

Beaked Filbert, Beaked Hazelnut

Corylus heterophylla

Corylus heterophylla

Asian Hazel, Siberian Filbert, Siberian Hazelnut

Cotinus obovatus

Cotinus obovatus

American Smoketree

Cotoneaster apiculatus

Cotoneaster apiculatus cs

Cranberry Cotoneaster

Crataegus aestivalis

Crataegus aestivalis

May Hawthorn, Mayhaw

Crataegus coccinea

Crataegus coccinea

Scarlet Hawthorn

Crataegus crus-galli

Crataegus crus-galli

Cockspur Hawthorn, Cockspur Thorn

Crataegus prunifolia

Crataegus prunifolia

Broad-leaved Cockspur Thorn

Crataegus saligna

Crataegus saligna

Willow Hawthorn

Cryptomeria japonica

Cryptomeria japonica Lobbii

'Lobbii'

Lobbii Japanese Red Cedar

Cryptomeria japonica

Cryptomeria japonica var. sinensis

var. sinensis

China Cedar

Cucumis dipsaceus

Cucumis dipsaceus

Hedgehog Gourd, Teasel Gourd, Wild Cucumber

Hesperocyparis forbesii

Cupressus forbesii

Forbe's Cypress, Tecate Cypress

Hesperocyparis nevadensis

Cupressus nevadensis

Piute Cypress

Hesperocyparis stephensonii

Cupressus stephensonii

Cuyamaca Cypress

Cycas revoluta

Cycas revoluta

Funeral Palm, Japanese Sago Palm, King Sago Palm, Sago Cycad, Sago Palm

Cyclamen coum

Cyclamen coum

Eastern Sowbread, Persian Violet

Dacrycarpus dacrydioides

Dacrycarpus dacrydioides

Kahika, Kahikatea

Danthonia spicata

Danthonia spicata

Curly Oak Grass, Poverty Oatgrass

Daphne mezereum

Daphne mezereum

February Daphne, Mezereon

Deschampsia flexuosa

Deschampsia flexuosa

Wavy Hairgrass

Digitalis ferruginea

Digitalis ferruginea

Rusty Foxglove

Dionaea muscipula

Dionaea muscipula

Venus Fly Trap, Venus Flytrap