Common Knapweed - Centaurea nigra
Medium to tall hairy plant with erect stems, branched or unbranched. Thickened below the flowerhead. Flowerheads purple, 20 to 40 mm, solitary or in branched clusters, the florets all equal in length. Flower bracts with a broad, blackish triangular fringed appendage, concealing the adjacent bracts.
Roadsides, flower meadows, hedgebanks and waste ground.
June to September.
Very common throughout Britain.
Very common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 561 of the 617 tetrads.
Leicestershire & Rutland Map
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