Species Factsheets

Shepherdia canadensis


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State Status: Pennsylvania Endangered (PE)
PBS Status: Pennsylvania Endangered (PE)
Federal Status:

Global Rank: G5 rank interpretation
State Rank: S1

Did You Know?

This species was commonly used medicinally be many North American Indian tribes for treatment of many issues. Bark can be used to create banages, stems and leaves can be used for sores and the plant can be used in a wash for healing aches.

Shepherdia canadensis


Buffalo-berry (Shepherdia canadensis) is a deciduous shrub. It is easily recognized by the opposite, entire leaves and the presence of reddish scales on the twigs and the stalks and undersurface of the leaves. The flowers are greenish, a few millimeters long, and appear in spring as the leaves emerge. The fruit is a reddish berry that can be found only on female plants. This species is related to and somewhat resembles the group of exotic, invasive shrubs known as “autumn-olive” or “Russian-olive” (genus Elaeagnus), but the latter plants have alternate leaves.

Rank Justification

Critically imperiled in the nation or state because of extreme rarity (often 5 or fewer occurrences) or because of some factor(s) such as very steep declines making it especially vulnerable to extirpation from the state.


The buffalo-berry has been given a status of Endangered on the Plants of Special Concern in Pennsylvania list by the Pennsylvania Biological Survey and the Department of Conservation and Natural Resources. It is currently known from fewer than ten locations that are mostly in the extreme northwestern corner of the state.


The species grows in various types of habitats throughout its range but mostly on calcareous substrates. At the locations in Pennsylvania, buffaloberry inhabits calcareous cliffs and rocky places, usually on steep slopes overlooking streams.

Survey Dates

Flower late June; fruit July



Conservation Status Map


Map Legend

NatureServe. 2017. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available https://explorer.natureserve.org.


  • NatureServe. 2018. NatureServe Explorer: An online encyclopedia of life [web application]. Version 7.1. NatureServe, Arlington, Virginia. Available at https://www.natureserve.org/explorer
  • Pennsylvania Natural Heritage Program. 2018.
  • Rhoads, A.F. and W.M. Klein, Jr. 1993. The Vascular Flora of Pennsylvania. American Philosophical Society, Philadelphia, Pennsylvania. Rhoads, A.F. and T.A. Block.
  • 2007. The Plants of Pennsylvania: An Illustrated Manual. 2nd edition. University of Pennsylvania Press, Philadelphia, Pennsylvania.
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