| Name | Oenothera macrocarpa subsp. fremontii (S. Watson) W. L. Wagner |
| Authorship | (S. Watson) W. L. Wagner |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Oenothera macrocarpa Nuttall |
| GUID | urn:lsid:ipni.org:names:922421-1 |
| Holdings | 14 Specimens held in the Harvard University Herbaria identified as Oenothera macrocarpa subsp. fremontii (S. Watson) W. L. Wagner |
| Identification made in | [no date] (4), 1980 (10) |