Cistus salviifolius
Sage-leaved Rock-rose
Clematis cirrhosa
Early Virgin's-bower
Clematis montana
Himalayan Clematis
Clematis rehderiana
Clematis serratifolia
Korean Clematis
Clematis sp.
Clematis x durandii
Clematis (x#durandii)
Clivia spp.
Colchicum
Colchicum alpinum
Alpine Saffron
Convallaria majalis
Lily-of-the-valley
Coprinus comatus
Shaggy Inkcap
Cordyline australis
Cabbage-palm
Coriandrum sativum
Coriander
Corrigiola litoralis
Strapwort
Cotoneaster cambricus
Wild Cotoneaster
Cotoneaster horizontalis
Wall Cotoneaster
Cotoneaster melanocarpus
Cotoneaster tomentosus
Cotoneaster (tomentosus)
Crambe maritima
Sea-kale
Crataegus monogyna
Hawthorn
Crinum asiaticum
Crinum (asiaticum#var#japonicum)
Crithmum maritimum
Rock Samphire
Crocosmia
Montbretia "Lucifer"