Family: Asteraceae Greater Knapweed Centaurea scabiosa Flowering time: July - August. Perennial Found on calcareous grassland, hedgebanks, roadsides and scrubland Large pink-purple flowers with enlarged outer florets and green bracts, their apex blackish. The leaves are deeply pinnate with lanceolate segments. Height 30-80cm The rayed form of Common Knapweed, C. nigra var. radiata is similar but bracts are blackish-brown and it is found on acidic ground.

   




Greater Knapweed, Centaurea scabiosa
Badbury Rings, Dorset. July 2012