| Name | Astragalus robbinsii var. occidentalis S. Watson |
| Authorship | S. Watson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Astragalus robbinsii (Oakes) A. Gray |
| GUID | urn:lsid:ipni.org:names:299090-2 |
| Citation | 1871 Botany [Fortieth Parallel] 70 |
| Holdings | 14 Specimens held in the Harvard University Herbaria identified as Astragalus robbinsii var. occidentalis S. Watson |
| Identification made in | [no date] (13), 2022 (1) |