Elymus L., Sp. Pl. 1: 83-84. 1753 sec. Soreng & al. 2015
- =Sitospelos Adans., Fam. Pl. 2: 36, 606. 1763 syn. sec. Valdés Reyna & Dávila 1995
- =Asperella Humb. in Bot. Mag. (Römer & Usteri) 7: 5. 1790 syn. sec. Valdés Reyna & Dávila 1995
- =Elytrigia Desv. in Nouv. Bull. Sci. Soc. Philom. Paris 2: 190. 1810 syn. sec. Valdés Reyna & Dávila 1995
- =Gymnostichum Schreb., Beschr. Gras. 3: 127. 1810 syn. sec. Valdés Reyna & Dávila 1995
- =Polyantherix Nees in Ann. Nat. Hist. 1: 284. 1838 syn. sec. Valdés Reyna & Dávila 1995
- =Braconotia Godr., Fl. Lorraine 3: 191. 1844 syn. sec. Valdés Reyna & Dávila 1995
- =Cryptopyrum Heynh., Nom. Bot. Hort. 2: 174. 1846 syn. sec. Valdés Reyna & Dávila 1995
- =Roegneria K. Koch in Linnaea 21(4): 413. 1848 syn. sec. Valdés Reyna & Dávila 1995
- =Crithopyrum Steud., Syn. Pl. Glumac. 1: 344. 1854 syn. sec. Valdés Reyna & Dávila 1995
- =Anthosachne Steud., Syn. Pl. Glumac. 1: 237. 1855 syn. sec. Valdés Reyna & Dávila 1995
- =Stenostachys Turcz. in Bull. Soc. Imp. Naturalistes Moscou 35(2): 330. 1862 syn. sec. Valdés Reyna & Dávila 1995
- =Elymus sect. Sitanion (Raf.) Benth. & Hook. f., Gen. Pl. 3(2): 1207. 1883 syn. sec. Valdés Reyna & Dávila 1995
- =Chretomeris Nutt. ex J.G. Sm. in Bull. Div. Agrostol., U.S.D.A. 18: 15. 1899 syn. sec. Valdés Reyna & Dávila 1995
- =Goulardia Husn., Graminées: 83. 1899 syn. sec. Valdés Reyna & Dávila 1995
- =Sitanion sect. Eusitanion J.G. Sm. in Bull. Div. Agrostol., U.S.D.A. 18: 12. 1899 syn. sec. Valdés Reyna & Dávila 1995
- =Sitanion sect. Hordeiformae J.G. Sm. in Bull. Div. Agrostol., U.S.D.A. 18: 17. 1899 syn. sec. Valdés Reyna & Dávila 1995
- =Sitanion sect. Polyantherix (Nees) J.G. Sm. in Bull. Div. Agrostol., U.S.D.A. 18: 10. 1899 syn. sec. Valdés Reyna & Dávila 1995
- =Terrellia Lunell in Amer. Midl. Naturalist 4: 227. 1915 syn. sec. Valdés Reyna & Dávila 1995
- =Clinelymus (Griseb.) Nevski in Izv. Bot. Sada Akad. Nauk SSSR 30: 637, 640. 1931 syn. sec. Valdés Reyna & Dávila 1995
- =Campeiostachys Drobow, Fl. Uzbekistan 1: 300, 540. 1941 syn. sec. Valdés Reyna & Dávila 1995
- =Semeiostachys Drobow, Fl. Uzbekistan 1: 281, 539. 1941 syn. sec. Valdés Reyna & Dávila 1995