| Name | Petalonyx thurberi A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Petalonyx A. Gray |
| GUID | urn:lsid:ipni.org:names:545548-1 |
| Citation | 1855 Mem. Amer. Acad. Arts n.s. 5: 319 |
| Holdings | 54 Specimens held in the Harvard University Herbaria identified as Petalonyx thurberi A. Gray |
| Identification made in | [no date] (53), 2008 (1) |