1053 Rubus idaeus L.

This polymorphic species has a wide Eurasiatic and N. American distribution. Subsp. idaeus occurs in most of Europe (southwards more montane) and in W. and C. Asia, where subsp. melanolasius Focke (syn.: var. aculeatissimus Reg. & Tiling, R. strigosus Michx) continues eastwards through most of E. Asia. It also occurs over large areas of N. America. Subsp. nipponicus Focke is restricted to Honshu. The species s. lat. belongs to the circumpolar plants (Hultén, Circumpol. Il, p. 130 and map 121). It has been introduced, for instance, into eastern N. America, Greenland and New Zealand. Cf. also Meusel et al. 1965, map p. 211.