Source: Valdés, B. & Raab-Straube, E. von (2011+): Boraginaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Euro+Mednot endemic: CrimeanativeA; France, with Channel is. and MonaconativeA; HungarynativeA; Italy, with San Marino and Vatican CitynativeA; SlovakianativeB
