| Name | Oenothera deltoides var. howellii Munz |
| Authorship | Munz |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Oenothera deltoides Torrey & Fremont |
| GUID | urn:lsid:ipni.org:names:172934-2 |
| Citation | 1949 Aliso 2: 81 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oenothera deltoides var. howellii Munz |
| Identification made in | [no date] (1) |