Subshrubs, 45–130 cm (taproots forming woody crowns). Herbage glabrous or sparsely hairy. Stems usually multiple (arching upwards). Leaves evenly distributed (often crowded; proximal often withering and pendulous); sessile or ± petiolate; blades linear-filiform, 3–12 cm × 1–3 mm, bases ± linear, margins entire. Heads 5–20 in corymbiform arrays (involucres campanulate). Calyculi 0 or of 1–3+ lance-deltate to linear bractlets (lengths to 1 / 4 phyllaries). Phyllaries ± 13, 7–10 mm, tips green. Ray florets ± 8; corolla laminae 8–10 mm. Cypselae hirtellous (canescent). 2n = 40.