Chenopodium vulvaria
Stinking Goosefoot
Chromolaena odorata
Devil Weed
Chrysosplenium alternifolium
Alternate-leaved Golden-saxifrage
Chrysosplenium oppositifolium
Opposite-leaved Golden-saxifrage
Cichorium intybus
Chicory
Circaea alpina
Alpine Enchanter's-nightshade
Circaea x intermedia
Upland Enchanter's-nightshade
Cirsium arvense
Creeping Thistle
Cirsium dissectum
Meadow Thistle
Cirsium eriophorum
Woolly Thistle
Cirsium oleraceum
Cabbage Thistle
Cirsium palustre
Marsh Thistle
Cirsium vulgare
Spear Thistle
Cirsium x celakovskianum
Cladium mariscus
Great Fen-sedge
Claytonia perfoliata
Springbeauty
Clinopodium ascendens
Common Calamint
Clinopodium vulgare
Wild Basil
Cochlearia officinalis agg
Common Scurvygrass
Cochlearia officinalis agg.
Scurvygrass
Coeloglossum viride
Frog Orchid
Comarum palustre
Marsh Cinquefoil
Combretum indicum
Rangoon Creeper
Commersonia bartramia