NOUN | plant | Centaurea nigra, lesser knapweed, black knapweed, hardheads | a weedy perennial with tough / tough wiry stems and purple flowers |
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Meaning | A weedy perennial with tough / tough wiry stems and purple flowers; native to Europe but widely naturalized. | |
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Synonyms | lesser knapweed, black knapweed, hardheads | |
Broader | knapweed | Any of various plants of the genus Centaurea having purple thistlelike flowers |
Spanish | hardheads | |
Catalan | hardheads |
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