Muhlenbergia subbiflora Hitchc. Muhlenbergia subbiflora Hitchc., N. Amer. Fl. 17(6): 437. 1935 sec. Sánchez-Ken 2019=Chaboissaea subbiflora (Hitchc.) Reeder & C. Reeder in Phytologia 65(2): 156. 1988 syn. sec. Tropicos 2013