Aster multiflorus var. commutatus Torrey & A. Gray nom. illeg.
Aster multiflorus var. commutatus Torrey & A. Gray nom. illeg. is a synonym sensu FNA Ed. Comm., 2006b of:
Symphyotrichum falcatum var. commutatum (Torrey & A. Gray) G.L. Nesom, an accepted variety name sensu FNA Ed. Comm., 2006b.