Convallaria majalis
Lily-of-the-valley
Coprinus comatus
Shaggy Inkcap
Coprinus picaceus
Magpie Inkcap
Cordyline fruticosa
Ti Plant
Coreopsis lanceolata
Lanceleaf Coreopsis
Corydalis solida
Bird-in-a-bush
Cosmos caudatus
King's Salad
Costus dubius
Spiral Flag
Costus guanaiensis
Spiral Ginger
Cota tinctoria
Yellow Chamomile
Crassocephalum crepidioides
Redflower Ragleaf
Crataegus monogyna
Hawthorn
Crepis foetida
Stinking Hawk's-beard
Crepis vesicaria
Beaked Hawk's-beard
Crescentia cujete
Calabash Tree
Crossandra infundibuliformis
Firecracker Flower
Crotalaria pallida
Crotalaria
Ctenanthe setosa
Cucumis melo
Cantaloupe
Cuphea carthagenensis
Colombian Waxweed
Cuphea hyssopifolia
False Heather
Cyanthillium cinereum
Little Ironweed
Cycas revoluta
Sago Palm
Cymbidium ensifolium
Four-season Orchid