Native to:

Alabama, Alberta, Arizona, Arkansas, British Columbia, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Manitoba, Maryland, Massachusetts, Mexico Northeast, Mexico Northwest, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Carolina, North Dakota, Northwest Territories, Nova Scotia, Nunavut, Ohio, Oklahoma, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Yukon

POWO follows these authorities in accepting this name:

• Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
• Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
• Douglas, G.W., Meidinger, D. & Penny, J.L. (2002). Rare Native Vascular Plants of British Columbia . ed. 2: 1-358. Province of British Columbia.
• Flora of North America Editorial Committee (2024). Flora of North America North of Mexico 13: 1-566. Oxford University Press, New York, Oxford.
• Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
• Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
• Knapp, W.M. & Naczi, R.F.C. (2021). Vascular plants of Maryland, USA. A comprehensive account of the state's botanical diversity. Smithsonian Contributions to Botany 113: 1-151.
• Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale.

Kew Backbone Distributions

• Ackerfield, J. (2015). Flora of Colorado: 1-818. BRIT Press.
• Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
• Douglas, G.W., Meidinger, D. & Penny, J.L. (2002). Rare Native Vascular Plants of British Columbia . ed. 2: 1-358. Province of British Columbia.
• Flora of North America Editorial Committee (2024). Flora of North America North of Mexico 13: 1-566. Oxford University Press, New York, Oxford.
• Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
• USDA, NRCS ( 2021-continuously updated). Natural Resources Conservation Services Plant Database http://plants.usda.gov/cgi_bin/topics.cgi?earl=checklist.html.

IPNI - The International Plant Names Index

Herbarium Catalogue (47 records)