Stems 40-80 cm. Leaves: basal axils ± densely tomentose, terminal lobes 6-40 mm; cauline 2-7. Heads 3-8. Peduncles 8-16 cm. Phyllaries 7-10 mm. Florets 30-60; corollas whitish, 4-5 mm, throats 2-3 mm, lengths 3-5 times lobes; anthers 3-3.5 mm. Cypselae 5-6 mm, hairs 0.5-1.5 mm; pappi 1.5-2 mm. Flowering May-Jul. Limestone outcrops; 1500-3000 m; Calif., Nev., Utah.