centaurea nigra

4 definitions found

centaurea nigra - Collaborative International Dictionary of English v.0.48 :

  Ironheads \I"ron*heads`\, n. (Bot.)
     A European composite herb (Centaurea nigra); -- so called
     from the resemblance of its knobbed head to an iron ball
     fixed on a long handle. --Dr. Prior.
     [1913 Webster]

  Knapweed \Knap"weed`\, n. (Bot.)
     The black centaury (Centaurea nigra); -- so called from the
     knoblike heads of flowers. Called also bullweed.
     [1913 Webster]

  Matfelon \Mat"fel*on\, n. [W. madfelen.] (Bot.)
     The knapweed (Centaurea nigra).
     [1913 Webster]

centaurea nigra - WordNet (r) 2.1 (2005) :

  Centaurea nigra
      n 1: a weedy perennial with tough wiry stems and purple flowers;
           native to Europe but widely naturalized [syn: lesser knapweed
           , black knapweed, hardheads, Centaurea nigra
           ]