horseweed
(noun)
noun
1. erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States
Similar word(s): richweed, stoneroot
Definition categories: plant, herb
2. common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus Erigeron
Similar word(s): fleabane