Conium maculatum
Hemlock
Conocarpus erectus
Buttonwood
Conopodium majus
Pignut
Convolvulus arvensis
Field Bindweed
Corchorus aestuans
East Indian Jute Mallow
Corchorus olitorius
Jute Mallow
Coreopsis lanceolata
Lanceleaf Coreopsis
Coriandrum sativum
Coriander
Cornus capitata
Bentham's Dogwood
Cornus sanguinea
Dogwood
Corrigiola litoralis
Strapwort
Corydalis solida
Bird-in-a-bush
Corylus avellana
Hazel
Cosmos caudatus
King's Salad
Cosmos Sulphureus
Sulfur Cosmos
Cota tinctoria
Yellow Chamomile
Cotoneaster cambricus
Wild Cotoneaster
Cotoneaster horizontalis
Wall Cotoneaster
Cotoneaster integrifolius
Entire-leaved Cotoneaster
Cotoneaster melanocarpus
Cotoneaster tomentosus
Cotoneaster (tomentosus)
Couroupita guianensis
Cannonball tree
Crambe maritima
Sea-kale
Crassocephalum crepidioides
Redflower Ragleaf
Crassula helmsii
New Zealand Pigmyweed
Crataegus laevigata
Midland Hawthorn
Crataegus monogyna
Hawthorn
Crataegus rhipidophylla
Crepis biennis
Rough Hawk's-beard
Crepis capillaris
Smooth Hawk's-beard
Crepis foetida
Stinking Hawk's-beard
Crepis vesicaria
Beaked Hawk's-beard
Crescentia cujete
Calabash Tree
Crithmum maritimum
Rock Samphire
Crossandra infundibuliformis
Firecracker Flower
Crotalaria pallida
Crotalaria
Croton bonplandianus
Cruciata laevipes
Crosswort
Cucumis melo
Cantaloupe
Cucurbita pepo
Marrow
Cuphea carthagenensis
Colombian Waxweed
Cuphea hyssopifolia
False Heather
Cuscuta epithymum
Dodder
Cuscuta europaea
Greater Dodder
Cyanthillium cinereum
Little Ironweed
Cyclamen coum
Eastern Sowbread
Cyclamen hederifolium
Sowbread
Cydonia oblonga
Quince
Cymbalaria muralis
Ivy-leaved Toadflax
Cynara cardunculus
Cardoon
Cynoglossum officinale
Hound's-tongue
Cyrtophyllum fragrans
Tembusu
Cytisus scoparius
Broom
Daboecia cantabrica
St Dabeoc's Heath
Daboecia x scotica
Dahlia (red)
Dahlia (red)
Daphne cneorum
Garland#Flower
Daphne laureola
Spurge-laurel
Daphne mezereum
Mezereon
Darlingtonia californica
California Pitcher#Plant
Darmera peltata
Indian-rhubarb
Datura innoxia
Pricklyburr
Datura stramonium
Thorn-apple
Daucus carota
Carrot
Davidia involucrata
Dove-tree
Delosperma nubigenum
Mesembryanthemum
Denrolobium umbellatum
Desmanthus virgatus
Wild Tantan
Desmodium scorpiurus
Scorpion Tick Trefoil
Desmodium tortuosum
Twisted Tick Trefoil