| Name | Astragalus mexicanus var. trichocalyx (Nuttall) Fernald |
| Authorship | (Nuttall) Fernald |
| Rank | Variety |
| Placed in | Astragalus mexicanus A. de Candolle |
| Citation | 1937 Rhodora 39(464): 317 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Astragalus mexicanus var. trichocalyx (Nuttall) Fernald |
| Identification made in | [no date] (2) |
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