1351 Circaea lutetiana L.

This species occurs in Europe, N. Africa and parts of Asia. It is replaced eastwards by the closely related C. quadrisulcata (Maxim.) Franch. & Sav. in the C. Asiatic mountains and E. Asia, C. erubescens Franch. & Sav. mainly in Japan and C. quadrisulcata var. canadensis (L.) Hara in N. America. The C. lutetiana complex belongs to the amphi-atlantic plants (Hultén, Amphi-atl., p. 76 and map 57). Cf. also Meusel et al. 1978, map p. 301.