Euro+MedendemicA: EstoniaintroducedA; Russia (C European RussianativeA, E European RussianativeA, N European RussiaintroducedA, NW European RussiaintroducedA, S European RussianativeA)
Bibliography
A.Kurtto, A. & al. (ed.) 2007: Atlas Florae Europaeae 14. – Helsinki