938 Arabis glabra (L.) Bernh.

Syn.: Turritis glabra L.

This widespread species is considered native in Europe and W. Asia. It seems doubtful whether it is native in E. Asia and N. America. At any rate it has been introduced into C. and S. Africa and Australia. With its present distribution it belongs to the discountinuous circumpolar plants (Hultén, Circumpol. Il, p. 268 and map 259). Cf . also Meusel et al. 1965, map p. 190.