Atlas of North European vascular plants
Hultén & Fries 1986
708 Montia fontana L. subsp. chondrosperma (Fenzl) Walt.
This subspecies is restricted to Europe and adjacent parts of W. Asia and NW. Africa. To some degree the mapping is schematical. For more details see Atlas Fl. Eur. 5/1980, map 665. Cf. also the preceding no. 707 and Meusel et al. 1965, map p. 136.