bitterweed
英[\'bɪtərwi:d]
美[\'bɪtərwid]
英英释义
Noun1. widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States
2. any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma
