Ceratocapnos claviculata
Climbing Corydalis
Ceratophyllum demersum
Rigid Hornwort
Chaenorhinum minus
Small Toadflax
Chaenorhinum origanifolium
Malling Toadflax
Chaerophyllum temulum
Rough Chervil
Chamaenerion angustifolium
Rosebay Willowherb
Chara virgata
Delicate Stonewort
Chara vulgaris
Common Stonewort
Chenopodium album
Fat-hen
Chlorociboria aeruginascens
Green Elfcup
Chrysosplenium
Chrysosplenium alternifolium
Alternate-leaved Golden-saxifrage
Chrysosplenium oppositifolium
Opposite-leaved Golden-saxifrage
Cichorium intybus
Chicory
Circaea alpina
Alpine Enchanter's-nightshade
Circaea lutetiana
Enchanter's-nightshade
Circaea x intermedia
Upland Enchanter's-nightshade
Cirsium acaule
Dwarf Thistle
Cirsium arvense
Creeping Thistle
Cirsium dissectum
Meadow Thistle
Cirsium palustre
Marsh Thistle
Cirsium vulgare
Spear Thistle
Cirsium x celakovskianum
Cladium mariscus
Great Fen-sedge