Leaf lobes (3-)7-25(-75+), ovate to oblong or lanceolate to lance-linear, 4-12(-25+) × (1-)2-6(-12+) mm. Involucres 5-7+ × 10-18+ mm. Ray laminae 5-10+ mm. Disc corollas 2.5-3(-4+) mm, ± stipitate-glandular. Cypselae 2.5-4+ mm. 2n (= 3x) = 36. Flowering (Jun-)Aug-Sep(-Oct). Usually on sandy or gravelly soils, openings in pinyon-juniper, yellow pine, or spruce-fir forests; 1600-2900 m; Ariz., Calif., Colo., Nev., N.Mex., Tex., Utah, Wyo.; Mexico (Baja California, Chihuahua, Coahuila, Sonora).

Plant: Annual, biennial; stem generally 1, erect, 2-12 dm, openly branched above, glandular Leaves: alternate; petiole 1-6 cm or upper leaves sessile; blade 1-3.5 cm, 1-several X ternately divided into linear to oblong segments 1-5 mm wide, strigose or hairs short, spreading INFLORESCENCE: many-headed, panicle-like; peduncles 0.7-7 cm; involucre 7-10 mm diam, hemispheric to widely bell-shaped; phyllaries 12-24 in 2-3 series, 4.5-6 mm, oblanceolate or lanceolate, acuminate, soft-hairy, glandular Flowers: Ray flowers 10-20; ligules 5-7.5 mm, yellow; Disk flowers: many; corollas yellow, radial or bilateral, 2.5-4.5 mm; stamens often abortive; style tips obtuse Fruit: achenes, 4-sided, narrowly obpyramidal, 3-4.5 mm, dark brown or black, glabrous to short-rough-hairy; pappus 0 (rarely scales 1-13, 1.5-3 mm, lanceolate Misc: Dry, open, forest slopes; 1800-2650 m.; Aug-Sep