Seed vertical, ovate to triangular-ovate, testa thick, membranous, embryo subannular, surrounding copious perisperm, radicle superior. Species 1, endemic in North America. Standley, P. C. 1916. Chu, G. L., H. C. Stutz, and S. C. Sanderson. Obione suckleyana Torrey in A. Gray, Pacif.
Plants prostrate or ascending herbs .
Inflorescence of staminate and pistillate flowers in mixed clusters in axils of nearly all leaves. 0.2 mm, filaments short. 0.3 mm, usually exserted from perianth. Seed reddish brown, ca. Dry lake bottoms, agricultural fields, valleys, along creeks and ditchbanks.