Onagraceae
| Authority | : | Jussieu, 1789 |
| Nederlands | : | teunisbloemfamilie |
| English | : | williowherb family, evenening primrose family |
| Deutsch | : | Nachtkerzengewächse |
| Calylophus lavandulifolia |
| Authority | : | (Torr. & A.Gray) P.H.Raven, 1964 |
| Synonyms | : | Oenothera lavandulifolia Torr. & A.Gray, 1840 |
| English | : | lavender leaf sundrops |
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| Bryce Canyon National Park (Utah), USA; 8 August 2017. | |