Calamagrostis inexpansa var. robusta (Vasey) Stebbins
Calamagrostis inexpansa var. robusta (Vasey) Stebbins is a synonym sensu FNA Ed. Comm., 2007 of:
Calamagrostis stricta subsp. inexpansa (A. Gray) Greene, an accepted subspecies name sensu FNA Ed. Comm., 2007.