In Ky. this widespread northern (circumboreal) species is known from only two localities (MENI, PULA), both on or near sandstone clifftops at the western edge of the Appalachian region. There are also old reports from NELS (Greenwell 1935; "dry woods near Samuels") and perhaps JEFF ("depressa" of McMurtrie 1819), which may both be doubted, but the species is known from sw. Ind. and se. Ohio within 50 miles of the state line (K). The taxonomy of segregates in North America remains somewhat uncertain (as reviewed by W). Plants of PULA (KY) are relatively low-growing (mostly 0.5-1 m tall) and may be referred to var. depressa Pursh. Plants of MENI (KY, EKY) are clearly more erect in the wild and in cultivation (up to 2 m or more). Plants of both provenances have been cultivated for 20 years in front of JC's residence; an attempt was made in 2011 to transfer both to the Univ. of Ky. Arboretum, but only one MENI plant survived.