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Definition of Knapweed
1. Noun. Any of various plants of the genus Centaurea having purple thistlelike flowers.
Specialized synonyms: Slender Knapweed, Jersey Knapweed, Black Knapweed, Centaurea Nigra, Hardheads, Lesser Knapweed, Centaurea Scabiosa, Great Knapweed, Greater Knapweed
Generic synonyms: Centaury
Generic synonyms: Centaury
Definition of Knapweed
1. n. The black centaury (Centaurea nigra); -- so called from the knoblike heads of flowers. Called also bullweed.
Definition of Knapweed
1. Noun. Any of various common weeds of the genus ''Centaurea'', especially ''Centaurea nigra''. ¹
¹ Source: wiktionary.com
Definition of Knapweed
1. a meadow plant [n -S]
Medical Definition of Knapweed
1.