Calamagrostis canadensis (Michaux) P. Beauvois subsp. canadensis

Calamagrostis canadensis (Michaux) P. Beauvois subsp. canadensis is a synonym sensu TROPICOS of:

Calamagrostis canadensis (Michaux) Palisot de Beauvois var. canadensis, an accepted variety name sensu FNA Ed. Comm., 2007.