| Name | Oenothera sinuata var. grandiflora S. Watson |
| Authorship | S. Watson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Oenothera sinuata Linnaeus |
| GUID | urn:lsid:ipni.org:names:1016284-2 |
| Citation | 1873 Proc. Amer. Acad. Arts 8: 581, 614 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Oenothera sinuata var. grandiflora S. Watson |
| Identification made in | [no date] (1), 1978 (1) |
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