| Fabaceae | |
Astragalus canadensis var. brevidens
| (Gand.) Barneby | Leafl. W. Bot. 4(9): 238 | 1946 |
| Fabaceae | |
Astragalus canadensis var. canadensis
| | | |
| Fabaceae | |
Astragalus canadensis var. carolinianus
| (L.) M.E. Jones | Proc. Calif. Acad. Sci., ser. 2, 5(18): 647 | 1895 |
| Fabaceae | |
Astragalus canadensis var. longilobus
| Fassett | Rhodora 38(447): 94–95 | 1936 |
| Fabaceae | |
Astragalus canadensis fo. monticola
| Gand. | Bull. Soc. Bot. France 48: xv | 1901 [1902] |
| Fabaceae | |
Astragalus canadensis var. mortonii
| (Nutt.) S. Watson | Botany (Fortieth Parallel) 68 | 1871 |
| Fabaceae | |
Astragalus canadensis fo. rydbergii
| Gand. | | |