| Name | Zanthoxylum williamsii Standley |
| Authorship | Standley |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Zanthoxylum Linnaeus |
| GUID | urn:lsid:ipni.org:names:270819-2 |
| Citation | 1950 Ceiba 1: 41 |
| Holdings | 13 Specimens held in the Harvard University Herbaria identified as Zanthoxylum williamsii Standley |
| Identification made in | [no date] (13) |