Calamovilfa longifolia var. magna Scribner & Merrill

Calamovilfa longifolia var. magna Scribner & Merrill is a synonym sensu FNA Ed. Comm., 2003b of:

Sporobolus rigidus var. magnus (Scribner & Merrill) P.M. Peterson, an accepted variety name sensu Peterson et al., 2014.