page_title: Berberis canadensis
section_title: Distribution
hierarchical_section_title: Berberis canadensis / Distribution
caption_attribution_description: English: Berberis canadensis
context_page_description: Berberis canadensis, commonly known as the American barberry or Allegheny barberry, is a member of the family Berberidaceae. Berberis canadensis is one of only two simple-leaved or 'true' Berberis indigenous to the United States. The other is B. fendleri of the southwest U.S. The epithet "canadensis" literally means "Canadian" but was often used by 18th-Century botanists to refer to any plants growing in northeastern North America.
context_section_description: Berberis canadensis is indigenous in 13 of the 50 states of the United States. Berberis canadensis occurs naturally from the Appalachian Mountains from southern Pennsylvania to northern Georgia and Alabama. Scattered populations have also been reported as far west as Missouri.
  The species primarily thrives on rocky slopes on the sides of hills and mountains. The species used to be a lot more prevalent in the past, however due to its connection with wheat rust, the United States government has slowly been eradicating the species. It seems that the species has reached an equilibrium with the environment, thus indicating no further expansion of the range. Unlike most plants whose growth is restricted by weather, B. canadensis is primarily restricted by soil composition and habitat openness.
caption: B. canadensis worldwide distribution
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