| Name | Agoseris angustissima Greene |
| Authorship | Greene |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Agoseris Rafinesque |
| GUID | urn:lsid:ipni.org:names:175585-1 |
| Citation | 1911 Leafl. Bot. Observ. Crit. 2: 129 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Agoseris angustissima Greene |
| Identification made in | [no date] (1) |