| Name | Astragalus bisulcatus var. haydenianus (A. Gray) Barneby |
| Authorship | (A. Gray) Barneby |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Astragalus bisulcatus (Hooker) A. Gray |
| Holdings | 40 Specimens held in the Harvard University Herbaria identified as Astragalus bisulcatus var. haydenianus (A. Gray) Barneby |
| Identification made in | [no date] (39), 2009 (1) |
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