- black knapweed as a noun:
- 1
black knapweed
noun
1 black knapweed
A weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized.
synonyms: Centaurea nigra, hardheads, lesser knapweed.
debug info: 0.0236
noun
A weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized.
synonyms: Centaurea nigra, hardheads, lesser knapweed.
debug info: 0.0236