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Bearded Beggarticks (Bidens aristosa (Michx.) Britton)

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Range - Expand

Native or Not Present
Native or Expanded
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 can be aggressive and weedy, and has expanded greatly in the east, although it is uncommon in much of its new range. Although it has been planted in gardens, it is largely spreading on its own, due to its barbed seeds that stick to clothing or animal fur. We marked the Colorado population as introduced due to its geographic isolation.