Plants 25-30 cm. Leaves 15-18 × 5-5.5 cm, shallowly lobed, lobes deltate, sharply dentate, faces glabrate. Heads 7-22. Calyculi: bractlets deltate (longest much shorter than phyllaries). Invo-lucres narrowly cylindric or turbinate, 18-21 mm in fruit. Cypselae reddish brown, 8 mm, apices narrow, not strongly tapered; pappi 12-13 mm. 2n = 55.

Flowering May-Jul. Dry open places; of conservation concern; 400-2200 m; Calif., Idaho.

Plants of subsp. idahoensis are generally larger and more robust than the other subspecies, with more heads per stem. They are possibly allopolyploids, with Crepis occidentalis or C. monticola in their lineage (E. B. Babcock 1947).