Rubia occidens SynonymySource: Marhold, K. (2011+): Rubiaceae (pro parte majore). – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Rubia occidens Capelo & al. in Silva Lusitana 21(2): 236. 2014ContentDistribution Bibliography Distribution ● Hs(S) Euro+Med endemicA: Spain, with Gibraltar and Andorra (Spain nativeA) Bibliography A. Capelo, M. Seq. & Schaefer, H. 2014: – Silva Lusitana 21(2). p 236 (as Rubia occidens Capelo & al.)