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Twining Screwstem (Bartonia paniculata (Michx.) Muhl.)

Also known as panicled screwstem.

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Range - Expand

Native 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 also native to Mexico; we have yet to build this portion of its map.