| Name | Oenothera elata subsp. hirsutissima (A. Gray ex S. Watson) W. Dietrich |
| Authorship | (A. Gray ex S. Watson) W. Dietrich |
| Rank | Subspecies |
| Placed in | Oenothera elata Kunth |
| Citation | 1983 Ann. Missouri Bot. Gard. 70(1): 195 |
| Holdings | 146 Specimens held in the Harvard University Herbaria identified as Oenothera elata subsp. hirsutissima (A. Gray ex S. Watson) W. Dietrich |
| Identification made in | [no date] (85), 1981 (61) |