| Name | Euphrasia williamsii var. vestita Fernald & Wiegand |
| Authorship | Fernald & Wiegand |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Euphrasia williamsii B. L. Robinson |
| GUID | urn:lsid:ipni.org:names:102188-2 |
| Citation | 1915 Rhodora 17: 186 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Euphrasia williamsii var. vestita Fernald & Wiegand |
| Identification made in | [no date] (1) |