Plants twiggy. Leaf blades 5–10(–23) × 1–2 mm. Peduncles 15–75 mm (heads usually held well beyond foliage). Ray laminae 6–12 × 2–4 mm. Disc corollas 4.5–7 mm. Cypselae 3–4 mm; pappi 3–5.5 mm. 2n = 45.

Flowering spring–fall. Mostly on limestone and derived soils; 200–2200+ m; N.Mex., Tex.; Mexico.