Echium tenue SynonymySource: Valdés, B. & Raab-Straube, E. von (2011+): Boraginaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Echium tenue Roth, Catal. Bot. 2: 16. 1800=Echium micranthum Schousb. in Kongel. Danske Vidensk.-Selsk. Skr., ser. 3, 1: 75. 1801=Echium aequale Coincy in J. Bot. (Morot) 16: 232. 1902ContentDistribution Bibliography Distribution ● Ma Euro+Med endemicA: Morocco native ‒ nativeA Bibliography A. Greuter, W., Burdet, H. M. & Long, G. 1984: Med-Checklist 1. – Genève & Berlin