| Name | Astragalus xylorrhizus var. angustus Freyn & Sintenis |
| Authorship | Freyn & Sintenis |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Astragalus xylorrhizus Freyn & Sintenis |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Astragalus xylorrhizus var. angustus Freyn & Sintenis |
| Identification made in | [no date] (2) |