Eupatorium leucolepis (A.P. de Candolle) Torrey & A. Gray. Phen: Aug-Oct. Hab: Pine savannas, seepage bogs, depression ponds. Dist: Primarily of the Southeastern Coastal Plain, ranging from NY south to n. peninsular FL, Panhandle FL, and west to LA; disjunct in Coffee County, TN (Chester, Wofford, & Kral 1997)
Origin/Endemic status: Endemic
Other Comments: This species is often confused with members of the E. recurvans-mohrii-anomalum complex. The following differences are useful: E. leucolepis has phyllaries acuminate to attenuate (vs. acute to obtuse), leaves of the uppermost nodes below the inflorescence opposite, or rarely the uppermost 1-2 nodes subopposite (vs. leaves of the uppermost 2-15 nodes below the inflorescence alternate), and leaves generally longitudinally folded (vs. generally planar). The plants formerly called E. leucolepis var. novae-angliae Fernald and endemic to freshwater pondshores in MA and RI apparently represent a distinct allopolyploid species, E. novae-angliae (Fernald) V.I. Sullivan ex A. Haines & Sorrie, and should not be treated as a variety of E. leucolepis.
Synonymy: = K3, K4, NY, Tn, Tx, Va, LeBlond et al (2007); = Eupatorium leucolepis (DC.) Torr. & A.Gray var. leucolepis – C, F, G; < Eupatorium leucolepis (DC.) Torr. & A.Gray – Fl7, GW2, Pa, RAB, S, SE1, W, WH3; < Eupatorium leucolepis (DC.) Torr. & A.Gray var. leucolepis – FNA21, K1