PLANT: Erect herbs or subshrubs, the stems stellate-tomentose or -scabrous, LEAVES: suborbicular, ovate, or lanceolate, obscurely crenate-dentate, pubescent. FLOWERS: solitary in the leafaxils or in terminal panicles; involucel absent; calyx 5-lobed; petals yellow-orange or blue-lavender; styles 6-11. FRUITS: schizocarpic, glabrous or slightly pubescent; mericarps 6-11, basally indehiscent and rugose, apically dehiscent and usually winged. SEEDS: usually solitary in the base of the mericarp or with 1-2 seeds in the upper part. NOTES: 4 spp. from the deserts of nw Mex. and sw U.S. (For F. H. Horsford, plant collector, and E. N. Horsford, chemist). Fryxell, P. A. 1988. Syst. Bot. Monogr. 25:234-240. REFERENCES: Fryxell, Paul A. 1994. Malvaceae. J. Ariz. - Nev. Acad. Sci. Volume 27(2), 222-236.
