Aster foliaceus var. subpetiolatus Fernald

Aster foliaceus var. subpetiolatus Fernald 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.