Calamagrostis robusta (Vasey) Vasey nom. illeg.

Calamagrostis robusta (Vasey) Vasey nom. illeg. is a synonym sensu Soreng et al., 2000+ of:

Calamagrostis stricta subsp. inexpansa (A. Gray) Greene, an accepted subspecies name sensu FNA Ed. Comm., 2007.