Annuals or perennials, 30-80 cm; taprooted. Stems lightly white-tomentose and/or glabrescent and green, minutely stipitate- or sessile-glandular beneath other in-duments. Leaf blades (not crowded, internodes mostly 5+ mm) oblanceolate-spatulate to obovate- or petiolate-spatulate, 5-10 cm × 10-20 mm (distal oblong to lanceolate or oblanceolate, 2-8 cm, slightly smaller), bases not clasping and decurrent 3-20 mm or clasping and decurrent 1-3 mm or not decurrent at all, margins flat to slightly revolute, faces bicolor, abaxial thinly white-tomentose, adaxial minutely stipitate- or sessile-glandular, otherwise glabrous or glabrate (bases of hairs persistent, enlarged). Heads in loose, corymbiform arrays. Involucres campanulate to turbinate, 3.5-4 mm. Phyllaries in 2-3 series, silvery white to tawny, oblong to oblong-ovate, (hyaline, shiny), glabrous. Pistillate florets 15-40(-64). Bisexual florets (1-)2-6. Cypselae ridged, papillate-roughened. Flowering (Aug-)Sep-Nov. Rock outcrops and slopes, crevices and thin soil on cliffs, oak or oak-pine woodlands; 1500-2300 m; Ariz., N.Mex., Tex.; Mexico (Chihuahua, Durango, Sonora).