Hesperostipa neomexicana (Thurb.) Barkworth Hesperostipa neomexicana (Thurb.) Barkworth in Phytologia 74(1): 16. 1993 sec. Dávila & al. 2018=Stipa neomexicana (Thurb.) Scribn. in Amer. Grasses II: 132, f. 428. 1899 syn. sec. Dávila & al. 2006