Rough Bugleweed (Lycopus asper Greene)

↑Range - Expand

Legend	Color
Native
Extirpated
Expanded
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 semiaquatic plant is occasionally planted intentionally, but may also spread on its own. It has established primarily along the shorelines of great lakes, where it is not native, but also as far east as Massachussets. We mark this new range as expanded because it is relatively contiguous with the native range.