Fabaceae | |
Astragalus tetrapterus var. capricornus
| M.E. Jones | Rev. N.-Amer. Astragalus 149 | 1923 |
Fabaceae | |
Astragalus tetrapterus var. cinerascens
| (Rydb.) Barneby | Leafl. W. Bot. 4(9): 235 | 1946 |
Fabaceae | |
Astragalus tetrapterus var. tetrapterus
| | | |
Fabaceae | ** |
Astragalus tetrapterus var. typicus
| Barneby | Leafl. W. Bot. 4(9): 234 | 1946 |