centaurea_nigra | ||
1. | [ noun ] (botany) a weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized | |
Synonyms: | black_knapweed hardheads lesser_knapweed | |
Related terms: | knapweed | |
Similar spelling: |
Centaurea_cyanus Centaurea_scabiosa Centaurea_moschata centre_of_gravity |