Aster occidentalis (Nuttall) Torrey & A. Gray var. occidentalis

Aster occidentalis (Nuttall) Torrey & A. Gray var. occidentalis is a synonym sensu TROPICOS of:

Symphyotrichum spathulatum (Lindley) G.L. Nesom var. spathulatum, an accepted variety name sensu FNA Ed. Comm., 2006b.