Herbs or subshrubs, annual or perennial, 5–6 dm. Stems erect, villous, glabrate. Leaves sessile; blade ovate to lanceolate, 1–7 × 0.7–1 cm, herbaceous, villous. Inflorescences terminal and axillary, pedunculate; heads white, globose, 0.7–1 cm diam.; bracts keeled, shorter than to equaling tepals. Flowers: tepals monomorphic, green to stramineous, lanceolate, 3–4 mm, apex acuminate, villous, hairs not barbed; stamens 5; pseudostaminodes ligulate, margins fimbriate. Utricles included within tepals, brown, ellipsoid, 2 mm, apex acute. Seeds ovoid-oblong, 1.4 mm.
