| Name | Oenothera laciniata var. grandiflora (S. Watson) B. L. Robinson |
| Authorship | (S. Watson) B. L. Robinson |
| Rank | Variety |
| Placed in | Oenothera laciniata Hill |
| Citation | 1908 Rhodora 10: 34 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oenothera laciniata var. grandiflora (S. Watson) B. L. Robinson |
| Identification made in | 1930 (1) |
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