Eutrochium purpureum (Linnaeus) E.E. Lamont var. purpureum . Purple-node Joe-pye-weed. Phen: Jul-Oct. Hab: Upland, usually mesic forests. Dist: NH west to se. MN, IA, and e. NE, south to SC, GA, Panhandle FL, n. LA, and e. OK.

Origin/Endemic status: Native

Taxonomy Comments: Eupatorium purpureum var. amoenum is smaller, more slender, with narrower leaves which are nearly glabrous below; it is probably only a form and is so treated here.

Synonymy: = Ar, Il, K4, NY, Va; = Eupatorium purpureum L. var. purpureum – C, Mo2; ~ Eupatoriadelphus purpureus (L.) King & H.Rob.; < Eupatorium purpureum L. – F, Fl7, GrPl, Mi, RAB, SE1, W, WH3; > Eupatorium purpureum L. var. amoenum (Pursh) Gray – G, WV; < Eupatorium purpureum L. var. purpureum – G, K1, WV, Lamont (1995); < Eupatorium trifoliatum L. – S; < Eutrochium purpureum (L.) E.E.Lamont – Pa, Tn; < Eutrochium purpureum (L.) E.E.Lamont var. purpureum – FNA21, NE, Lamont (2004)

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