Leaf blades 10-35 × 2-9 cm. Arrays of heads 8-35+ cm. Peduncles 4-17 mm. Involucres 6-9 mm. Corollas 10-12 mm. Cypselae 5-6 mm; pappi 9-10 mm. Flowering summer. Moist soils, open slopes, meadows; of conservation concern; 900-2000 m; Oreg., Wash.