Eragrostis sessilispica Buckley in Proc. Acad. Nat. Sci. Philadelphia 14: 97. 1862 sec. Dávila & al. 2018
- ≡Acamptoclados sessilispicus (Buckley) Nash, Fl. S.E. U.S.: 140. 1903 syn. sec. Dávila & al. 2006
- =Diplachne rigida Vasey in U.S.D.A. Div. Bot. Bull. 12(2): t. 44. 1891 syn. sec. Dávila & al. 2006
- =Eragrostis rigida (Vasey) Scribn. in Proc. Acad. Nat. Sci. Philadelphia 43(2): 304. 1891 syn. sec. Dávila & al. 2006
- =Leptochloa rigida Munro ex Vasey in U.S.D.A. Div. Bot. Bull. 12(2): t. 44. 1891 syn. sec. Dávila & al. 2006
- =Bromus hordeaceus subsp. thominei (Hardouin) Braun-Blanq., Origin. Développem. Fl. Massif Central: 113. 1923 syn. sec. Dávila & al. 2006