Caralluma joannis SynonymySource: Marhold, K. (2011+): Apocynaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Caralluma joannis Maire in Bull. Soc. Hist. Nat. Afrique N. 31: 27. 1940ContentDistribution Bibliography Distribution ● Ma Euro+Med endemicA: Morocco nativeA Bibliography A. Greuter, W., Burdet, H. M. & Long, G. 1984: Med-Checklist 1. – Genève & Berlin