Euro+MedendemicA: Czech RepubliccasualB; France, with Channel is. and Monaco (FrancenativeA,C); Italy, with San Marino and Vatican CitynativeA; SlovenianativeA
Bibliography
A.Jalas, J. & Suominen, J. 1999: Atlas Florae Europaeae 12
B.Danihelka, J., Chrtek, J. & Kaplan, Z. 2012: Checklist of vascular plants of the Czech Republic. – Preslia 84: 647-811
C.Greuter, W., Burdet, H. M. & Long, G. 1986: Med-Checklist 3. – Genève & Berlin