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Pecan (Carya illinoinensis (Wangenh.) K. Koch)

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Range - Expand

Native or Not Present
Introduced or Not Present
Native or Expanded
Expanded or Not Present
Native or Expanded or Not Present

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.

This species is widely planted both in landscaping and for nut production, and frequently escapes and establishes wild populations. We mark eastern populations expanded because they are extensive and contiguous with its native range, but we mark some western populations introduced because they are separated by large distances occupied by arid regions where this species probably could not survive.