This cespitose perennial occurs in grassy openings on dry base-rich soils across northeastern regions, and extends south along the higher Appalachians (W). It should not to be confused with var. latifolia; see P. cf. lonchophylla. The only clearly verified record for Ky. may be from LEWI (KY), but further review is desirable (Trauth-Nare & Naczi 1998; R. Naczi, pers. comm.).