Cirsium dissectum
Meadow Thistle
Cirsium eriophorum
Woolly Thistle
Cirsium oleraceum
Cabbage Thistle
Cirsium palustre
Marsh Thistle
Cirsium vulgare
Spear Thistle
Cirsium x celakovskianum
Cissus verticillata
Princess Vine
Cladium mariscus
Great Fen-sedge
Claytonia perfoliata
Springbeauty
Clerodendron chinensis
Glory Bower
Clerodendron paniculatum
Pagoda Flower
Clinopodium ascendens
Common Calamint
Clinopodium vulgare
Wild Basil
Cochlearia officinalis agg
Common Scurvygrass
Cochlearia officinalis agg.
Scurvygrass
Coeloglossum viride
Frog Orchid
Coffea arabica
Coffee
Comarum palustre
Marsh Cinquefoil
Combretum indicum
Rangoon Creeper
Commersonia bartramia
Conium maculatum
Hemlock
Conopodium majus
Pignut
Convallaria majalis
Lily-of-the-valley
Cornus capitata
Bentham's Dogwood