| Name | Oenothera marginata var. purpurea S. Watson |
| Authorship | S. Watson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Oenothera marginata Nuttall ex Hooker & Arnott |
| GUID | urn:lsid:ipni.org:names:173170-2 |
| Citation | 1871 Botany [Fortieth Parallel] 108 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oenothera marginata var. purpurea S. Watson |
| Identification made in | [no date] (1) |