Source: Raab-Straube, E. von & Henning, T. (2018+): Violaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Euro+MedendemicA: France, with Channel is. and Monaco (FrancenativeB,C,D); Italy, with San Marino and Vatican CitynativeA,D,E
Bibliography
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B.Guinochet, M. & Vilmorin, R. de 1982: Flore de France 4. – Paris
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D.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
E.Conti, F., Abbate, G., Alessandrini, A. & Blasi, C. 2005: An annotated checklist of the Italian vascular flora. – Roma: Fratelli Palombi
