collinsonia canadensis(n = noun.plant) horse balm, horseweed, richweed, stone root, stone-root, stoneroot - erect perennial strong-scented with serrate pointed leaves and a loose panicle of yellowish flowers; the eastern United States;
is a kind of herb, herbaceous plant
is a member of collinsonia, genus collinsonia

anemone canadensis, aquilegia canadensis, arabis canadensis, berberis canadensis, branta canadensis, canachites canadensis, castor canadensis, cervus canadensis, collinsonia, conyza canadensis, cornus canadensis, dicentra canadensis, elodea canadensis, elymus canadensis, erigeron canadensis, genus collinsonia, hydrastis canadensis, laportea canadensis, linaria canadensis, lonicera canadensis, lutra canadensis, lynx canadensis, ovis canadensis, perisoreus canadensis, perisoreus canadensis capitalis, rubus canadensis, sambucus canadensis, sanguinaria canadensis, sitta canadensis, solidago canadensis, tsuga canadensis, viola canadensis