| 释义 |
knap·weed
\ˈnapˌ ̷ ̷\ noun
Etymology: Middle English knopwed, from knop + wed, weed weed — more at knop, weed
: any of various plants of the genus Centaurea; especially : a weedy perennial (C. nigra) that is native to Europe but widely naturalized and that has tough wiry stems and knobby heads of purple flowers |