Oenothera affinis, Taxa Only, Exact Match: 2 Treatments

Oenothera affinis			Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 307-308	307-308
Oenothera affinis			S. Castroviejo, C. Aedo, C. Benedi, M. Lainz, F. Munoz Garmendia, G. Nieto Feliner & J. Paiva, 1997, Flora Iberica / Vol. VIII: Haloragaceae - Euphorbiaceae, Madrid: Real Jardín Botanico, CSIC : 96	96