Leaves (and peduncular bracts) scabroso-hirtellous and usually ± hirsute or setose-ciliate, not glandular or with sparsely and irregularly distributed, minute, sessile or stipitate, yellowish glands. Involucres 3.5-5 mm. Paleae lacking purple lines. Ray corolla laminae 2-3 mm. Anthers yellow or brownish. 2n = 22.

Flowering Jun-Oct. Grasslands, edges of marshes and vernal pools, disturbed sites (e.g., fallow fields); 0-500 m; Calif.

Subspecies rudis occurs in the southern Sacramento Valley, northern San Joaquin Valley, and, uncommonly, in the southern Inner North Coast Ranges.