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Collinsonia canadensis
Also called Northern Horsebalm, Stoneroot, Canada Horsebalm, Citronella Horse Balm, Horsebalm
Collinsonia canadensis, commonly called richweed or stoneroot, is a species of perennial herb in the mint family.
It is native to eastern North America, primarily east of the Mississippi River, where it is widespread. It is the most broadly distributed member of the genus Collinsonia, ranging north to Quebec and south to Florida. Its natural habitat is nutrient-rich mesic forests, most often in rocky, calcareous areas. Collinsonia canadensis can grow up to 4 feet (1.2 m) tall and has terminal clusters of tiny, tubular yellow flowers. Leaves are green, large, sharply toothed, and ovate.
Anise Horsebalm · Collinsonia japonica · Blue Ridge Horsebalm · Stoneroot · Horsebalm
Text excerpted from the Wikipedia article Collinsonia canadensis by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
