External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:172767-2
- Species Name
- Oenothera biennis L., Sp. Pl. 1: 346 (1753).
- Publication
- Naturaliste Canadien. Bulletin de Recherches, Observations et Decouvertes se Rapportant a l'Histoire Naturelle du Canada. Quebec
- Collation
- 94: 654
- Family as entered in IPNI
- Onagraceae