| Name | Ptilocalyx greggii Torrey & A. Gray |
| Authorship | Torrey & A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Ptilocalyx |
| GUID | urn:lsid:ipni.org:names:214276-2 |
| Citation | 1857 Pacific Railr. Rep. 2, Pt. 4, Bot. (Pope) 170 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Ptilocalyx greggii Torrey & A. Gray |
| Identification made in | [no date] (4) |