Narcissus occasus SynonymySource: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Narcissus occasus Fern. Casas in Fontqueria 56(5): 39. 2009ContentDistribution Bibliography Distribution ● Lu Euro+Med endemicA: Portugal nativeA Bibliography A. Fernández Casas, F. J. 2009: – Fontqueria 56(5). p 39