Crocus speciosus
Bieberstein's Crocus
Crocus tommasinianus
Early Crocus
Crocus x luteus
Yellow Crocus
Cruciata laevipes
Crosswort
Cryptogramma crispa
Parsley Fern
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
Cydonia oblonga
Quince
Cymbalaria muralis
Ivy-leaved Toadflax
Cynara cardunculus
Cardoon
Cynoglossum officinale
Hound's-tongue
Cynosurus cristatus
Crested Dog's-tail
Cyperus fuscus
Brown Galingale
Cypripedium calceolus
Lady's-slipper
Cyrtomium fortunei
Fortune's cyrtomium
Cystopteris fragilis
Brittle Bladder-fern
Cytisus scoparius
Broom
Daboecia cantabrica
St Dabeoc's Heath