WordNet 3.0 Copyright © 2006 by Princeton University.
- 1. horse balm, horseweed, stoneroot, stone-root, richweed, stone root, Collinsonia canadensis, herb, herbaceous plant
- usage: erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States
- 2. horseweed, Canadian fleabane, fleabane, Conyza canadensis, Erigeron canadensis, weed
- usage: common North American weed with linear leaves and small discoid heads of yellowish flowers; widely naturalized throughout temperate regions; sometimes placed in genus Erigeron
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See also: horseweed (Dictionary)