WOLANIN, Mateusz; WOŹNIAK, Monika. Oenothera oehlkersii Kappus ex Rostański - a new evening-primrose species in Polish flora. Biodiversity: Research and Conservation, [S. l.], v. 23, p. 57–58, 2012. DOI: 10.2478/v10119-011-0015-9. Disponível em: https://pressto.amu.edu.pl/index.php/biorc/article/view/v10119-011-0015-9. Acesso em: 19 jan. 2026.