Peter's Mountain Mallow is one of the most rare native plants in the United States. Between 1927 and 1991 it declined from 50 plants to only three. It is uncertain why this plant is so near extinction, but research has determined that the plant's hard seeds need fire to break open the seed coat to allow water in. This popcorn-like effect helps the seeds to germinate. This plant can only be found on Peter's Mountain near The Narrows in Virginia, in a hardwood forest above the New River.

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