Muhlenbergia longiligula Hitchc. in Amer. J. Bot. 21(3): 136. 1934 sec. Dávila & al. 2018
- =Epicampes ligulata Scribn. ex Vasey in Contr. U.S. Natl. Herb. 3(1): 58. 1892 syn. sec. Dávila & al. 2006
- =Epicampes anomala Scribn. ex Beal, Grass. N. Amer. 2: 311. 1896 syn. sec. Dávila & al. 2006
- =Epicampes distichophylla var. mutica Scribn. ex Beal, Grass. N. Amer. 2: 308. 1896 syn. sec. Dávila & al. 2006
- =Melica anomala Scribn. ex Beal, Grass. N. Amer. 2: 311. 1896 syn. sec. Dávila & al. 2006
- =Epicampes stricta var. mutica (Scribn. ex Beal) M.E. Jones in Contr. W. Bot. 14: 6. 1912 syn. sec. Dávila & al. 2006