1538 Convolvulus arvensis L.

This variable species (e. g. var. linearifolius Choisy from S. Europe) is considered to originate from the Mediterranean region. It has spread widely as a weed (Africa, N. and S. America, Australia etc.). However, it avoids N. Eurasia and northern N. America. The present distribution is discontinuous circumpolar (Hultén, Circumpol. Il, p. 248 and map 239). Cf. also Meusel et al. 1978, map p. 359.