Found 2 items, similar to Horseweed.
English → English (WordNet) Definition: horseweed horseweed n 1: erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States [syn: horse balm, stoneroot, stone-root, richweed, stone root, Collinsonia canadensis] 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 [syn: Canadian fleabane, fleabane, Conyza canadensis , Erigeron canadensis]
English → English (gcide) Definition: Horseweed Horseweed \Horse"weed`\, n. (Bot.) A composite plant (Erigeron Canadensis), which is a common weed. [1913 Webster]