| Name | Epilobium williamsii P. H. Raven |
| Authorship | P. H. Raven |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Epilobium Linnaeus |
| GUID | urn:lsid:ipni.org:names:612442-1 |
| Citation | 1962 Bull. Brit. Mus. (Nat. Hist.), Bot. 2: 378 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Epilobium williamsii P. H. Raven |
| Identification made in | [no date] (4) |