noun
- A coarse biennial of eastern North America with yellow flowers that open in the evening; naturalized in Europe.
- synonyms: common evening primrose, German rampion
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). oenothera biennis. Retrieved October 1, 2026, from http://smartdefine.org/oenothera_biennis/definitions/1298411 |
| Chicago | WordNet. 2010. "oenothera biennis" http://smartdefine.org/oenothera_biennis/definitions/1298411 (accessed October 1, 2026). |
| Harvard | WordNet 2010, oenothera biennis, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/oenothera_biennis/definitions/1298411>. |
| MLA | WordNet. "oenothera biennis" 23 October 2010. Web. 1 October 2026. <http://smartdefine.org/oenothera_biennis/definitions/1298411> |