Perennials, 40-100 cm. Stems usually 1, branched distally, moderately to strongly winged, densely (the proximal) to moderately hairy. Leaves moderately to densely hairy; basal blades oblanceolate to obovate to spatulate, entire or undulate-serrate; proximal and mid blades oblanceolate to lanceolate, usually entire, sometimes undulate-serrate; distal blades lanceolate to lance-linear, entire. Heads 3-20 per plant, in paniculiform to corymbiform arrays. Peduncles 3-11 cm, moderately to densely hairy. Involucres globoid to ovoid, 9-17 × 10-20 mm. Phyllaries (barely connate proximally) moderately to densely hairy. Ray florets 9-15, neuter; corollas yellow, 20-30 × 8-15 mm. Disc florets 150-500(-700+); corollas yellow proximally, reddish brown to purple distally, 3-5 mm, lobes 5. Cypselae 1-1.4 mm, sparsely to moderately hairy; pappi of 6-7, entire, non-aristate scales 0.3-0.5 mm. 2n = 28.

Flowering May-Jun(-Jul). Ditches, fields, in washes, along streams; 100-200 m; Ark.