Crepis biennis
Rough Hawk's-beard
Crepis capillaris
Smooth Hawk's-beard
Crepis foetida
Stinking Hawk's-beard
Crepis vesicaria
Beaked Hawk's-beard
Crinum asiaticum
Crinum (asiaticum#var#japonicum)
Crithmum maritimum
Rock Samphire
Crocosmia
Montbretia "Lucifer"
Crocosmia x crocosmiiflora
Montbretia
Crocus laevigatus
Crocus (laevigatus)
Crocus neapolitanus
Spring Crocus
Crocus nudiflorus
Autumn Crocus
Crocus sativus
Saffron Crocus
Crocus speciosus
Bieberstein's Crocus
Crocus tommasinianus
Early Crocus
Crocus x luteus
Yellow Crocus
Cruciata laevipes
Crosswort
Cryptomeria japonica
Japanese Red-cedar
Cucurbita pepo
Marrow
Cupressus nootkatensis
Nootka Cypress
Cupressus x leylandii
Leyland Cypress
Cuscuta epithymum
Dodder
Cuscuta europaea
Greater Dodder
Cyclamen coum
Eastern Sowbread
Cyclamen hederifolium
Sowbread