Euro+Mednot endemic: Great BritainnaturalisedA; Ireland, with N IrelandintroducedB (IrelandcasualA,C)
Bibliography
A.Stace, C. 2010: New Flora of the British Isles, ed. 3
B.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
C.Reynolds, S. C. P. 2002: A catalogue of alien plants in Ireland. – Glasnevin