Muhlenbergia strictior Scribn. ex Beal Muhlenbergia strictior Scribn. ex Beal, Grass. N. Amer. 2: 263. 1896 sec. Dávila & al. 2018=Muhlenbergia madrensis M.E. Jones in Contr. W. Bot. 14: 12. 1912 syn. sec. Dávila & al. 2006