| Name | Oenothera deltoides var. ambigua (S. Watson) Munz |
| Authorship | (S. Watson) Munz |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Oenothera deltoides Torrey & Fremont |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Oenothera deltoides var. ambigua (S. Watson) Munz |
| Identification made in | [no date] (2) |
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