Eupatorium purpureum var. falcatum (Michaux) Britton

Eupatorium purpureum var. falcatum (Michaux) Britton is a synonym sensu FNA Ed. Comm., 2006c of:

Eutrochium purpureum (Linnaeus) E.E. Lamont var. purpureum, an accepted variety name sensu FNA Ed. Comm., 2006c.