Perennials or subshrubs, 10-100 cm; caudices branched, usually woody, taproots 2-18+ cm. Stems 1-30+, branched throughout or in distal 1 / 2 - 2 / 3 , moderately stout to stout, not wiry, hairy or glabrous, often stipitate-glandular. Leaves: basal sometimes withering by flowering, blades 1.5-3 × 0.8-1.3 cm, pinnatifid to 2+-pinnatifid; cauline variously spaced, blades oblong to lanceolate, 0.2-8 × 0.1-3 cm, not reduced markedly distally, margins deeply lobed to coarsely dentate or ± entire, teeth 4-18+ per side, each tipped with white bristles 0.2-1.8 mm, hairy or glabrous, often stipitate-glandular. Peduncles glabrous or hairy, often stipitate-glandular; bracts 0-3 leaflike. Involucres hemispheric to cupulate, 6-10 × 8-25 mm. Phyllaries in 5-6 series, linear to linear-lanceolate, 0.1-0.9 mm, apices acute to acuminate, tipped with white bristle, faces glabrous or hairy, often stipitate-glandular. Ray florets 14-60; corollas yellow, tubes 2.5-3.2 mm, laminae 5-12 × 1-2.5 mm. Disc florets 30-150+; corollas 4-5 mm. Cypselae narrowly obovoid, 1.8-2.5 mm, nerves 16-24, sparsely to moderately tawny hairy; pappi tawny, 4-6 mm, bristles progressively longer adaxially.

Santa Catalina Mountains.
Location: Bug Spring Trail at 5317 ft;
32.346846 N, -110.714787 W.
5/2/15, 4/26/17

See SEINet Pictures and Description