Annuals to c. 0.4 m high. Leaves to c. 7 cm long, undivided and then narrowly elliptic or oblanceolate, or lobate to sub-pinnatisect; margin entire, denticulate or dentate. Capitula several to numerous per stem; calycular bracteoles 2–5, 1–2 mm long, 0.5–1 mm wide; involucre 5–7 mm long, 2–3.5 mm diam.; bracts 8–13; receptacle with inconspicuous or prominent marginal tubercles. Florets c. 15–30; female florets 5–8; corolla tube 2–3 mm long; ligule to 1 mm long or vestigial. Achenes narrowly obloid, dimorphic; achenes of bisexual florets 2–3 mm long, with papillose hairs covering 50–100% of surface, clearly exceeding pappus-ring and divergent at summit; achenes of female florets 2.5–3.5 mm long, otherwise similar. Pappus 3–4 mm long.