Symphyotrichum novi-belgii var. tardiflorum (Linnaeus) G.L. Nesom

Symphyotrichum novi-belgii var. tardiflorum (Linnaeus) G.L. Nesom is a synonym of:

Symphyotrichum ×tardiflorum (Linnaeus) Greuter, M.V. Aghababian & Wagenitz, an accepted species name sensu FNA Ed. Comm., 2006b.