Centaurea cyanus
Cornflower
Centaurea debeauxii
Slender Knapweed
Centaurea montana
Perennial Cornflower
Centaurea nigra
Common Knapweed
Centaurea scabiosa
Greater Knapweed
Cichorium intybus
Chicory
Cirsium acaule
Dwarf Thistle
Cirsium arvense
Creeping Thistle
Cirsium dissectum
Meadow Thistle
Cirsium eriophorum
Woolly Thistle
Cirsium heterophyllum
Melancholy Thistle
Cirsium oleraceum
Cabbage Thistle
Cirsium palustre
Marsh Thistle
Cirsium vulgare
Spear Thistle
Cirsium x celakovskianum
Cota tinctoria
Yellow Chamomile
Crepis biennis
Rough Hawk's-beard
Crepis capillaris
Smooth Hawk's-beard
Crepis foetida
Stinking Hawk's-beard
Crepis vesicaria
Beaked Hawk's-beard
Cynara cardunculus
Cardoon
Dahlia (red)
Dahlia (red)
Doronicum pardalianches
Leopard's-bane
Echinacea purpurea
Coneflower