| Name | Astragalus iodanthus var. vipereus Barneby |
| Authorship | Barneby |
| Rank | Variety |
| Placed in | Astragalus iodanthus S. Watson |
| Citation | 1964 Mem. New York Bot. Gard. 13: 962 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Astragalus iodanthus var. vipereus Barneby |
| Identification made in | [no date] (2) |
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