Plants 25-50 cm. Leaves: petioles broadly winged; blades oblance-olate, 2-3 cm wide, margins strongly and coarsely serrate or toothed (teeth prominently white-tipped), faces glabrous or hispidulous. Heads 6-20. Involucres 19-21 mm. Phyllaries broadly lanceolate, apices long-acuminate, faces usually stipitate-glandular. Cypselae pale yellow to reddish brown, 6-8 mm, ± distinctly beaked; pappi 6-9 mm. 2n = 22.

Flowering May-Jul. Alkaline seeps, grasslands, moist alkaline valley bottoms; 1200-1500 m; Calif., Nev.

Subspecies andersonii is identified mainly by the relatively large involucres with densely stipitate-glandular phyllaries and the leaf margins with sharp, prominently white-tipped teeth.