coastal plain mountainmint

Pycnanthemum nudum is a species in the mint family (Lamiaceae) with a restricted distribution in the southeastern U.S. It is known by the common name coastal plain mountainmint. The species is endemic to the region and occurs in Alabama, Florida, Georgia, and South Carolina. Notably, P. nudum, along with P. californicum, lacks transitional forms compared to other species in the genus, a feature that stands out in a group known for extensive hybridization and morphological overlap.