Plants 30-60+ cm (perennating bases ± erect, internodes not winged). Leaves all or mostly opposite (distal sometimes alternate); blades ovate-deltate or rhombic to lance-elliptic, 3-5 × 1-3 cm, bases subtruncate to cuneate, margins coarsely toothed to subentire, apices obtuse to acute, faces ± hirtellous to scabrellous. Heads borne singly. Involucres ± hemispheric, 10-15+ mm diam. Phyllaries 18-30+ in 3-4 series, ± erect, oblong to elliptic, 6-10+ mm. Ray florets 8-13; laminae 15-25+ mm. Disc florets 60-100+; corollas yellow. Cypselae dark brown, ± elliptic, 10 mm, faces glabrous; pappi 0-0.5 mm. 2n = 34. Flowering (May-)Aug-Sep. Rocky slopes, igneous or limestone substrates; 1200-1800 m; Ariz., N.Mex.; Mexico (Coahuila, Durango, Zacatecas).

Plant: Perennial forb 30-50 cm Leaves: leaves opposite, clasping, lance-ovate, sandpapery Flowers: flower heads radiate, borne singly on long peduncles, ~2 cm across; ray flowers golden, disk flowers golden; achene compressed, 2-winged, pappus none.