Aster crenifolius (Fernald) Cronquist
Aster crenifolius (Fernald) Cronquist is a synonym sensu FNA Ed. Comm., 2006b of:
Symphyotrichum novi-belgii var. crenifolium (Fernald) Labrecque & Brouillet, an accepted variety name sensu FNA Ed. Comm., 2006b.