Search Result for "hardheads": 
Wordnet 3.0

NOUN (1)

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]


WordNet (r) 3.0 (2006):

hardheads 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]