knapweed

Từ điển Oxford Learners Wordfinder Dictionary

noun

any of various plants of the genus Centaurea having purple thistlelike flowers
• Hypernyms:
centaury
• Hyponyms:
slender knapweed, Jersey knapweed, lesser knapweed, black knapweed, hardheads,
Centaurea nigra, great knapweed, greater knapweed, Centaurea scabiosa