| Name | Astragalus giganteus S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Astragalus Linnaeus |
| Citation | 1882 Proc. Amer. Acad. Arts 17: 370 |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Astragalus giganteus S. Watson |
| Identification made in | [no date] (12) |