Lesser Balloon Vine (Cardiospermum halicacabum L.)

↑Range - Expand

Legend	Color
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.

The exact native range of this species is not known, but it is generally agreed-upon to be native to Mexico but not the US, and to have expanded northward. Although it is sometimes cultivated and escapes cultivation, it also spreads along roadsides. We mark all US populations as Expanded because there is a clear pattern of expansion adjacent to the native range with the plant becoming progressively less common northward. We have yet to build the portion of its map in Mexico.