American Bird's-Foot Trefoil (Acmispon americanus (Nutt.) Rydb.)
Also classified as Lotus unifoliolatus (Hook.) Benth..
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↑Range - Expand
Legend | Color |
Native | |
Expanded | |
Native or Not Present | |
Native or Expanded | |
Expanded or Not Present | |
Native or 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.
Note that although the range map shows a native population in the Appalachians, this is Acmispon americanus var. helleri, an uncommon variety which is not expanding into new areas; new populations consist of the more abundant, Western Acmispon americanus var. americanus spreading eastward. We mark it as expanded even though the populations consist of isolated populations, because this is a small weedy plant that is not generally cultivated, and there are enough new populations to see a pattern of spread.