13. Abutilon parvulum A. Gray, Smithsonian Contr. Knowl. 3(5): 21. 1852.
Herbs or subshrubs, perennial, usually to 0.5 m. Stems trailing, minutely stellate-pubescent and sometimes with simple hairs 1 mm. Leaves: stipules subulate, 2–4 mm; petiole 1/2 to as long as blade; blade concolorous, broadly ovate, to 5 cm, length ± equaling width, base cordate, margins coarsely dentate, apex acute, surfaces sparsely pubescent, visible through pubescence. Inflorescences axillary, solitary flowers. Flowers: calyx 3–5 mm, lobes not overlapping, reflexed in fruit, ovate; corolla ± pinkish throughout, petals 4–7 mm; staminal column glabrous; style 5-branched. Schizocarps ± ovoid, 8–9 × 8–9 mm; mericarps: apex acute or apiculate, minutely stellate-pubescent. Seeds 3 per mericarp, 2 mm, puberulent. 2n = 14.
Flowering spring–fall. Dry, open habitats; 500–1500 m; Ariz., Calif., Colo., Nev., N.Mex., Tex., Utah; Mexico (Baja California, Chihuahua, Coahuila, Sonora, Tamaulipas).
Abutilon parvulum is an inconspicuous plant and thus not often collected. It has trailing branches, uncommon in Abutilon.