| Elymus arizonicus (Scribn. & J.G. Sm.) Gould, 1947 |
| Elymus brevifolius (J.G. Sm.) M.E. Jones, 1912 |
| Elymus canadensis L., 1753 |
| Elymus canadensis f. canadensis L., 1753 |
| Elymus canadensis f. glaucifolius (Muhl. ex Willd.) Fernald, 1933 |
| Elymus canadensis subsp. canadensis L., 1753 |
| Elymus canadensis var. canadensis L., 1753 |
| Elymus canadensis var. glaucifolius (Muhl. ex Willd.) Torr., 1824 |
| Elymus canadensis var. hirsutus (Farw.) Dorn, 1988 |
| Elymus canadensis var. interruptus (Buckley) G.L. Church, 1987 |
| Elymus canadensis var. pendulus Eaton & J. Wright, 1840 |
| Elymus canadensis var. philadelphicus (L.) Farw., 1920 |
| Elymus canadensis var. villosus Bates, 1914 |
| Elymus caninus (L.) L., 1755 |
| Elymus condensatus J. Presl, 1830 |
| Elymus condensatus var. triticoides (Buckley) Thurb., 1880 |
| Elymus diversiglumis Scribn. & C.R. Ball, 1901 |
| Elymus elongatus (Host) Runemark, 1972 |
| Elymus elymoides (Raf.) Swezey, 1891 |
| Elymus elymoides subsp. brevifolius (J.G. Sm.) Barkworth, 1988 |