| Name | Euphorbia guilielmi A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Euphorbia Linnaeus |
| GUID | urn:lsid:ipni.org:names:346706-1 |
| Citation | 1859 Mem. Amer. Acad. Arts 6: 406 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Euphorbia guilielmi A. Gray |
| Identification made in | [no date] (2) |