Source: Valdés, B. & Raab-Straube, E. von (2011+): Boraginaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Euro+Med: Algerianative; France, with Channel is. and Monaconative; Italy, with San Marino and Vatican Citynative; Morocconative; Portugalnative; Sicily, with Maltanative (Sicilynative); Spain, with Gibraltar and Andorranative (Spainnative)