Silphium wasiotense M. Medley. Phen: Jul-Sep. Hab: Dry and dry-mesic forests over dolomite or calcareous shale. Dist: E. KY and ne. TN (Risk & Wyrick 1996, Chester, Wofford, & Kral 1997).
Origin/Endemic status: Endemic
Synonymy: = FNA21, K1, K3, K4, Tn; = n/a – F; = Silphium wasiotensis – Medley (1989), orthographic variant; < Silphium mohrii Small – C