Synonymer till bitterweed
substantiv
- (widespread European weed with spiny tongue-shaped leaves and yellow flowers; naturalized in United States) oxtongue; bristly oxtongue; bugloss; Picris echioides; bitterweed
- (any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly allergenic pollen responsible for much hay fever and asthma) ragweed; ambrosia; bitterweed