Muhlenbergia dumosa Scribn. ex Vasey Muhlenbergia dumosa Scribn. ex Vasey in Contr. U.S. Natl. Herb. 3(1): 71. 1892 sec. Dávila & al. 2018=Muhlenbergia dumosa var. minor Scribn. ex Beal, Grass. N. Amer. 2: 261. 1896 syn. sec. Dávila & al. 2006