Oenothera bulgarica SynonymySource: Raab-Straube, E. von (2018+): Onagraceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Oenothera bulgarica Delip. in Thaiszia 8: 122. 1998ContentDistribution Bibliography Distribution ● [Bu] Euro+Med endemic: Bulgaria introducedA,B Bibliography A. Assyov, B., Petrova, A., Dimitrov, D. & Vassilev, R. 2012: Konspekt na visšata flora na Bălgarija, ed. 4. – SofijaB. Rostański, K., Rostański, A., Gerold-Śmietańska, I. & Wasowicz, P. 2010: Evening-primroses (Oenothera) occurring in Europe. – Katowice & Kraków