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Threelobe Beggarticks (Bidens tripartita L.)

Different sources refer to wildly different populations with the name Bidens tripartita; BONAP has merged other taxa including purplestem beggarticks (Bidens connata), into this one, which we consider separate. Some treatments, including Weakley's FSUS, also separate a species Bidens comosa (A. Gray) Wiegand which most sources lump in with this taxon.

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Range - Expand

Native or Not Present
Introduced 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.