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Foxglove Beardtongue (Penstemon digitalis Nutt. ex Sims)

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Range - Expand

Native or Not Present
Native or Expanded
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.

This plant is widely planted in gardens, but readily escapes into the wild and also spreads on its own. It has established north of its native range consistently across its range. We have marked all such populations as expanded; most are contiguous with the native range, and there is a clear pattern of numerous isolated populations as one approaches the northern range limit. Abandoned agriculture has widely created new habitat for it. It will likely continue to expand.