Leaf blades 40-90 × 2-6 mm. Peduncles 30-50 mm. Ray laminae linear-elliptic, 10-15 × 3-6 mm. Disc corollas ca. 4 mm. Cypselae 3-3.5 mm; pappi: scales 1-2.5 mm. 2n = 26. Flowering late spring-summer. Limestone outcrops and derived soils; 100-700 m; Okla., Tex.