WordNet: Centaurea nigra, black knapweed, hardheads, lesser knapweed

a weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized

• hypernym knapweed

Centaurea nigra

• (suomi) Centaurea nigra (synonyymi)

black knapweed

• (suomi) mustakaunokki (synonyymi)

hardheads

• (suomi) mustakaunokki (synonyymi)

lesser knapweed

• (suomi) mustakaunokki (synonyymi)