Euro+Med: LatviaintroducedA; Ukraine, with CrimeanativeB
Bibliography
A.Laasimer, L., Kuusk, V., Tabaka, L. & Lekavičius, A. (ed.) 1993: Flora of the Baltic countries. Flora Baltijskich Respublik 1. – Tartu: Estonian Academy of Sciences
B.Prokudin, J. N. 1987: Opredelitel’ vysših rastenij Ukrainy. – Kiev: Naukova Dumka