Pycnanthemum albescens Torrey & A. Gray. Phen: Aug-Sep. Hab: Bluff forests, hammocks, other open, mesic forests. Dist: S. IL, MO, and se. KS south to GA, AL, MS, LA, and TX. Reported for NC by Small (as Koellia albescens), the basis of the report unknown to me. It is known from nc. GA (Jones & Coile 1988).
Origin/Endemic status: Endemic
Synonymy: = Ar, C, F, G, GrPl, Il, K1, K3, K4, NcTx, Tx, WH3; = Koellia albescens (Torr. & A.Gray) Kuntze – S; ~ Koellia pauciflora Small