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Yellow Sundrops (Oenothera serrulata Nutt.)

Also classified as Calylophus serrulatus (Nutt.) P.H. Raven, Calylophus serrulata (Incorrect Ending).

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Range - Expand

Native or Not Present
Introduced or Not Present
Native or Expanded

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.

The record from Vermont was from 1909 and it has not been found there since. This species has also been introduced in Ontario where it has formed a persistent population; we have not yet built this portion of its range map.