| Name | Haplopappus watsonii A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Haplopappus Cassini |
| GUID | urn:lsid:ipni.org:names:277944-2 |
| Citation | 1881 Proc. Amer. Acad. Arts 16: 79 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Haplopappus watsonii A. Gray |
| Identification made in | [no date] (2) |