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Veronica barrelieri subsp. barrelieri Schott ex Roem. & Schult.

voucher cited in Bardy KE, Schönswetter P, Schneeweiss GM, Fischer MA, Albach DC (2011): Extensive gene flow blurs species boundaries among Veronica barrelieri, V. orchidea and V. spicata (Plantaginaceae) in southeastern Europe. Taxon 60: 108–141