Euro+Med: PolandnativeA; RomanianativeB; Ukraine, with CrimeanativeC,D
Bibliography
A.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
B.Ciocîrlan, V. 1988: Flora Ilustrata a României 1. – Bucureşti: Editura Ceres
C.Fedorov, A. A. 1996: Flora Europae Orientalis 9. – Petropoli: Mir i Semia-XCV
D.Mosyakin, S. L. & Fedoronchuk, M. M. 1999: Vascular plants of Ukraine. A nomenclatural checklist. – Kiev: M. G. Kholodny Institute of Botany, National Academy of Sciences of Ukraine