Rhamnus alnifolia L'Hér.

Native to:

Alberta, British Columbia, California, Connecticut, Idaho, Illinois, Indiana, Iowa, Kentucky, Maine, Manitoba, Maryland, Massachusetts, Michigan, Minnesota, Montana, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Dakota, Nova Scotia, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming

POWO follows these authorities in accepting this name:

• Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
• Herkert, J.R. & Ebinger, J.E. (eds.) (2002). Endangered and Threatened Species of Illinois: status and distribution 1: 1-161. Endangered species protection board, Springfield, Illinois.
• 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.

An alternative taxonomy had been proposed by the following authorities:

• Mohlenbrock, R.H. (2014). Vascular Flora of Illinois. A Field Guide, ed. 4: 1-536. Southern Illinois University Press, Carbondale. [Cited as Endotropis alnifolia.]

Kew Backbone Distributions

• Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
• Flora of North America Editorial Committee (2016). Flora of North America North of Mexico 12: 1-603. Oxford University Press, New York, Oxford.
• Gilman, A.V. (2015). New flora of Vermont. Memoirs of the New York Botanical Garden 110: 1-614.
• Herkert, J.R. & Ebinger, J.E. (eds.) (2002). Endangered and Threatened Species of Illinois: status and distribution 1: 1-161. Endangered species protection board, Springfield, Illinois.
• Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.