Eupatorium torreyanum Short & R. Peter. Phen: Late Jul-Oct. Hab: Dry woodlands, powerline rights-of-way, roadsides, marshes. Dist: NY south to n. peninsular FL, Panhandle FL, and west to OH, TN, and LA.
Origin/Endemic status: Endemic
Syn: = K4, NE, NY, S, Tn, Va; = Eupatorium hyssopifolium var. laciniatum – Ar, C, F, Fl7, FNA21, G, K1, K3, Oh3, SE1, W, WH3; < Eupatorium hyssopifolium – RAB