This northeastern taxon was listed as P. depressa for Ky. by Short et al. (1833) and Riddell (1835), but no known colls. are traceable to Ky. and its occurrence here is dubiuous (M). The species, broadly defined, has a broader northern range and is verified from sw. Ohio, c. W.Va. and sc. Tenn. (K, PL, W). In Tenn., the only records are from May Prairie and other remnants of "barrens" on the southeastern Highland Rim.