| Name | Astragalus serotinus A. Gray ex J. G. Cooper |
| Authorship | A. Gray ex J. G. Cooper |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Astragalus Linnaeus |
| Contains | Astragalus serotinus var. palliseri (A. Gray) J. F. Macbride |
| Citation | 1859 Pacific Railr. Rep. 12, Book 2, Pt. 2 (Stevens) 51 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Astragalus serotinus A. Gray ex J. G. Cooper |
| Identification made in | [no date] (2), 1921 (1) |