Knapweed

[næpwi:d]

解释:

(noun.) any of various plants of the genus Centaurea having purple thistlelike flowers.

录入:万斯--From WordNet

解释:

(n.) The black centaury (Centaurea nigra); -- so called from the knoblike heads of flowers. Called also bullweed.

黛尔编辑