This is largely restricted to the central and southern Appalachians, where it occurs mostly at higher elevation. In Ky. it is known only from, or near, the Cumberland Mts. A few colls. suggest hybridization with erecta. A coll. labelled from ROWA (at MDKY). has dubious data and cannot be considered a valid record.(Campbell et al. 1992). See also notes under puberula.