Muhlenbergia porteri Scribn. Muhlenbergia porteri Scribn., Grass. N. Amer. 2: 259. 1896 sec. Dávila & al. 2018=Muhlenbergia texana Thurb. ex Porter & J.M. Coult., Syn. Fl. Colorado 144. 1874 syn. sec. Dávila & al. 2006