Oenothera suaveolens Pers.

POWO follows these authorities in synonymising this name:

• Chang, C.S., Kim, H. & Chang, K.S. (2014). Provisional checklist of vascular plants for the Korea peninsula flora (KPF): 1-660. DESIGNPOST. [Cited as Oenothera biennis.]
• Dobignard, A. & Chatelain, C. (2013). Index synonymique de la flore d'Afrique du nord 5: 1-451. Éditions des conservatoire et jardin botaniques, Genève. [Cited as Oenothera biennis.]
• Flora of North America Editorial Committee (2021). Flora of North America North of Mexico 10: 1-456. Oxford University Press, New York, Oxford. [Cited as Oenothera biennis.]
• Iwatsuki, K., Boufford, D.E. & Ohba, H. (eds.) (1999). Flora of Japan IIc: 1-328. Kodansha Ltd., Tokyo. [Cited as Oenothera biennis.]

This name was accepted following an alternative taxonomy by these authorities:

• Dimopoulos, P., Raus, T., Bergmeier, E., Constantinidis, T., Iatrou, G., Kokkini, S., Strid, A., & Tzanoudakis, D. (2013). Vascular plants of Greece. An annotated checklist: 1-372. Botanic gardens and botanical museum Berlin-Dahlem, Berlin and Hellenic botanical society, Athens. [Cited as Oenothera suaveolens.]
• Tutin, T.G. & al. (eds.) (1968). Flora Europaea 2: 1-469. Cambridge University Press. [Cited as Oenothera suaveolens.]