Centaurium erythraea
Common Centaury
Centaurium littorale
Seaside Centaury
Centaurium portense
Perennial Centaury
Centaurium pulchellum
Lesser Centaury
Centaurium scilloides
Perennial Centaury
Cephalanthera damasonium
White Helleborine
Cephalanthera longifolia
Narrow-leaved Helleborine
Cephalanthera rubra
Red Helleborine
Cerastium alpinum
Alpine Mouse-ear
Cerastium arvense
Field Mouse-ear
Cerastium diffusum
Sea Mouse-ear
Cerastium fontanum
Common Mouse-ear
Cerastium glomeratum
Sticky Mouse-ear
Cerastium pumilum
Dwarf Mouse-ear
Cerastium semidecandrum
Little Mouse-ear
Cerastium x maureri
Ceratocapnos claviculata
Climbing Corydalis
Ceratophyllum demersum
Rigid Hornwort
Chaerophyllum temulum
Rough Chervil
Chamaenerion angustifolium
Rosebay Willowherb
Chara virgata
Delicate Stonewort
Chara vulgaris
Common Stonewort
Chenopodium album
Fat-hen
Chrysosplenium alternifolium
Alternate-leaved Golden-saxifrage