Source: Valdés, B. & Raab-Straube, E. von (2011+): Boraginaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Euro+Mednot endemic: AlgerianativeA; GreecenativeB; MorocconativeA; RomanianativeB,C; Spain, with Gibraltar and Andorra (SpainnativeA); TunisianativeA
Bibliography
A.Fernández, I. & Talavera, S. 2011: Flora Iberica 11
B.Tutin, T. G., Heywood, V. H., Burges, N. A., Valentine, D. H., Walters, S. M. & Webb, D. A. 1964–1980: Flora europaea 1-5. – Cambridge: Cambridge University Press
C.Ciocârlan, V. 1990: Flora ilustrata a României 2. – Bucureşti: Editura Ceres