| Name | Oenothera longissima Rydberg |
| Authorship | Rydberg |
| Rank | Species |
| Placed in | Oenothera Linnaeus |
| GUID | urn:lsid:ipni.org:names:173149-2 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Oenothera longissima Rydberg |
| Identification made in | [no date] (5), 1981 (5) |
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