Euphrasia arctica subsp. arctica SynonymySource: Marhold, K. (2011+): Euphrasia. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Euphrasia arctica Rostr. subsp. arctica– "Euphrasia borealis" auct. ContentDistribution Bibliography Distribution Br Fa Euro+Med: Faroe islands nativeA; Great Britain nativeA 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