Euro+Med: Czech Republicnative ‒ nativeA,B,C; PolandnativeD,E; Russia (E European Russianative ‒ nativeF, N European Russianative ‒ nativeF,G, Novaya Zemlya & Franz-Joseph Landnative ‒ nativeF)
Bibliography
A.Dostál, J. 1989: Nová kvetena CSSR 2. – Praha
B.Kubát, K. 1992: Velky klúc na urcovanie vyssích rastlín II
C.Slavík, B. 2000: Kvetena Ceské republiky 6
D.Mirek, Z. 1995: Vascular plants of Poland. A Checklist. – Polish Botanical Studies Guidebook Series 15
E.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
F.Fedorov, A. A. 1981: Flora partis europaeae URSS 5. – Leningrad
G.Tolmatchew, A. I. 1980: Flora arctica URSS 8. – Moskva & Leningrad