Onagraceae
| Authority | : | Jussieu, 1789 |
| Nederlands | : | teunisbloemfamilie |
| English | : | williowherb family, evenening primrose family |
| Deutsch | : | Nachtkerzengewächse |
| Oenothera longissima |
| Authority | : | Rydb. 1913 |
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| Kanab (Utah), USA; 12 August 2017. | ||