- Common name(s): Common Evening-Primrose, Evening-Primrose, Evening Star, Sun Drop
- Blooming time: summer
- Blooming colors: yellow
- Height: 50 to 100 cm
- Origin: North America
- Hardiness zone (USDA): Z4 – up to -28 °C
- Family: evening primrose family (Onagraceae)
Oenothera biennis
