Eupatorium linearifolium Walter. Phen: Late Jul-Oct. Hab: Longleaf pine sandhills. Dist: Se. VA south to FL and west to LA.
Origin/Endemic status: Endemic
Other Comments: The appropriate treatment of this taxon is unclear; it may be a derivative of the hybrid E. cuneifolium × hyssopifolium.
Synonymy: = F, Va; = Eupatorium hyssopifolium L. var. linearifolium (Walter) Fernald – K1; = Eupatorium tortifolium Chapm. – S; < Eupatorium cuneifolium Willd. – C, G, RAB, SE1; < Eupatorium linearifolium Walter – Fl7, FNA21, K3, K4, Tx, WH3