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Cutleaf Evening Primrose (Oenothera laciniata Hill)

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Range - Expand

Native 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 weedy and has a strong potential to become an invasive plant in new areas. It has expanded both northwest into California and northeast in New England; we mark these populations expanded rather than introduced, even if humans helped it establish, because the new range is contiguous with its native range.