horseweed
Nouns
- (n) erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States Collinsonia canadensis, horse balm, richweed, stoneroot, stone-root, stone root,
- (n) common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus Erigeron Canadian fleabane, Conyza canadensis, Erigeron canadensis, fleabane,