| Poaceae | |
Elymus canadensis var. albanensis
| Lepage | Naturaliste Canad. 79: 177–184 | 1952 |
| Poaceae | |
Elymus canadensis var. brachystachys
| (Scribn. & C.R. Ball) Farw. | Rep. Michigan Acad. Sci. 21: 357 | 1920 |
| Poaceae | |
Elymus canadensis fo. calvescens
| (Fernald) Bowden | Canad. J. Bot. 42(5): 575 | 1964 |
| Poaceae | |
Elymus canadensis fo. canadensis
| | | |
| Poaceae | |
Elymus canadensis subsp. canadensis
| | | |
| Poaceae | |
Elymus canadensis var. canadensis
| | | |
| Poaceae | |
Elymus canadensis fo. crescendus
| Ramaley | Minnesota Bot. Stud. 1: 114 | 1894 |
| Poaceae | |
Elymus canadensis var. glabriflorus
| Vasey ex L.H. Dewey | Contr. U.S. Natl. Herb. 2(3): 550 | 1894 |
| Poaceae | |
Elymus canadensis fo. glaucifolius
| (Willd.) Fernald | Rhodora 35(414): 191 | 1933 |
| Poaceae | |
Elymus canadensis var. glaucifolius
| (Willd.) Torr. | Fl. N. Middle United States 1(1): 137 | 1824 [1823] |
| Poaceae | |
Elymus canadensis var. hirsutus
| (Farw.) Dorn | Vasc. Pl. Wyoming 298 | 1988 |
| Poaceae | |
Elymus canadensis var. intermedius
| Vasey ex S. Watson & J.M. Coult. | Manual (ed. 6) 673 | 1890 |
| Poaceae | |
Elymus canadensis var. interruptus
| (Buckley) G.L. Church | Rhodora 69(778): 133 | 1967 |
| Poaceae | |
Elymus canadensis var. pendulus
| Eaton & Wright | N. Amer. Bot. (ed. 8) 232 | 1840 |
| Poaceae | |
Elymus canadensis var. philadelphicus
| (L.) Farw. | Rep. Michigan Acad. Sci. 21: 357 | 1920 |
| Poaceae | |
Elymus canadensis var. riparius
| (Wiegand) B. Boivin | Naturaliste Canad. 94(4): 524 | 1967 |
| Poaceae | |
Elymus canadensis var. robustus
| (Scribn. & J.G. Sm.) Mack. & Bush | Man. Fl. Jackson County 38 | 1902 |
| Poaceae | ! |
Elymus canadensis var. villosus
| Bates | Amer. Bot. (San Diego) 20: 17 | 1914 |
| Poaceae | * |
Elymus canadensis var. villosus
| (Muhl. ex Willd.) Shinners | Rhodora 56(662): 28 | 1954 |
| Poaceae | |
Elymus canadensis fo. wiegandii
| (Fernald) Scoggan | Fl. Canada 2: 269 | 1978 |
| Poaceae | |
Elymus canadensis subsp. wiegandii
| (Fernald) Á. Löve | Taxon 29(1): 167 | 1980 |
| Poaceae | |
Elymus canadensis var. wiegandii
| (Fernald) Bowden | Canad. J. Bot. 42: 574 | 1964 |