| Name | Astragalus obscurus S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Astragalus Linnaeus |
| GUID | urn:lsid:ipni.org:names:25351-2 |
| Citation | 1871 Botany [Fortieth Parallel] 69 |
| Holdings | 18 Specimens held in the Harvard University Herbaria identified as Astragalus obscurus S. Watson |
| Identification made in | [no date] (16), 1960 (1), 1982 (1) |
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