boar thistle

1 definition found

boar thistle - WordNet (r) 2.1 (2005) :

  boar thistle
      n 1: European thistle with rather large heads and prickly
           leaves; extensively naturalized as a weed in the United
           States [syn: bull thistle, boar thistle, spear thistle
           , Cirsium vulgare, Cirsium lanceolatum]