Euro+Medendemic: France, with Channel is. and Monaco (FrancenativeA); Great BritainnativeA,B; Ireland, with N IrelandnativeA (IrelandnativeB)
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.Stace, C. 2010: New Flora of the British Isles, ed. 3