| Name | Porophyllum greggii A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Porophyllum Guettard |
| GUID | urn:lsid:ipni.org:names:239317-1 |
| Citation | 1852 Smithsonian Contr. Knowl. 3(5): 120 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Porophyllum greggii A. Gray |
| Identification made in | [no date] (3), 1964 (3), 2007 (1), 2014 (2) |