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Roundhead Rush (Juncus validus Coville)

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Range - Expand

Native 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.

This species is somewhat weedy, able to survive in anthropogenic habitats such as roadside ditches, which has probably contributed to it expanding slightly at the northeastern limits of its range.