Leaves broadly elliptic to obovate, flat and lax; distal margins with a 2-stratose border of elongate cells, distal laminal cells 10--14 µm. Sexual condition dioicous. Sporophytes unknown in region of flora.

Soil, among grasses, drainage ditches, fields; 100--300 m; Calif.; Mexico (Guerrero); Europe, Australia.

Since its description (W. C. Steere 1951), this mundivagant species has engendered a flurry of publications on its human-oriented distribution, its discovery in Europe, and the taxonomic significance of the eperistomate sporophyte (e. g. D. G. Long 1979; A. J. E. Smith and H. L. K. Whitehouse 1974; H. L. K. Whitehouse 1975).