| Name | Senecio greggii Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Senecio Linnaeus |
| GUID | urn:lsid:ipni.org:names:233184-2 |
| Citation | 1900 Bull. Torrey Bot. Club 27: 170 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Senecio greggii Rydberg |
| Identification made in | [no date] (1), 1985 (1) |