Plants 40-150 cm (stems sulcate to striate distally, densely glan-dular). Leaves cauline and/or basal; sessile; blades ovate to ovate-elliptic, 1.5 (cauline)-18 (basal) cm, bases shortly sagittate or clasping, margins acerose-denticulate, faces densely glandular-puberulent. Heads in subcongested corymbiform arrays. Involucres obconic to campanulate, 7-9 mm. Phyllaries in 2-3 series, oblong-oblanceolate, apices acuminate, abaxial faces densely glandular-hairy. Receptacles alveolate, glandular. Florets 3-6; corollas lavender-pink (purple), 7-12 mm. Cypselae subcylindric to subfusiform, 3-7 mm, glandular; pappi bright white, 8-9 mm (rigid). 2n = 54. Flowering Oct-Nov. Gravel and caliche soils in warm Sonoran desert scrub; 100-200 m; Ariz.; N.Mex.; Mexico (Chihuahua, Durango, Sonora).