1651 Veronica catenata Penn.

Syn.: V. aquatica Bernh., V. anagallidiformis Boreau

This widespread species is native in Eurasia and N. America and introduced into C. Africa (Ethiopia, Kilimandjaro) and S. Australia. The species belongs to the discontinuous circumpolar plants (Hultén, Circumpol. Il, p. 110 and map 101). Cf. also Meusel et al. 1978, map p. 401.