| Collinsonia canadensis | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Collinsonia |
| Species: | C. canadensis
|
| Binomial name | |
| Collinsonia canadensis | |
Collinsonia canadensis, commonly called richweed[1] or stoneroot,[2] 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,[3] ranging north to Quebec and south to Florida.[4] Its natural habitat is nutrient-rich mesic forests, most often in rocky, calcareous areas.[5][6] 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.[7]
It produces lemon-scented flowers in mid-summer, a time when little else is in bloom in densely shaded forests.[5]
- ^ USDA, NRCS (n.d.). "Collinsonia canadensis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 17 December 2017.
- ^ Hoffmann, David (2003-10-24). Medical Herbalism. Inner Traditions. p. 383. ISBN 9781594778902.
- ^ Yatskievych, George (2013). Flora of Missouri, Volume 3. Missouri Botanical Garden Press. p. 312.
- ^ "Collinsonia canadensis". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014. Retrieved 17 December 2017.
- ^ a b IllinoisWildflowers
- ^ Alan Weakley (2015). "Flora of the Southern and Mid-Atlantic States".
- ^ "Collinsonia canadensis - Plant Finder". www.missouribotanicalgarden.org. Retrieved 2022-01-12.