Annuals, green, to 20(–30) cm, glabrous or puberulent. Stems erect (branched from bases). Leaves alternate; blades 15–40 mm overall, lobed, lobes 5–13, linear. Peduncles 10–70 mm, glabrous or puberulent. Calyculi 0, or of 1–2 subulate bractlets, lengths less than 1/2 phyllaries. Involucres obconic to campanulate, 5–6 mm. Phyllaries 12–15, margins of outer distinct almost to bases, abaxial faces glabrous or puberulent. Ray florets 8–12; corollas bright yellow, laminae 4–6 × 2–3 mm. Disc florets 30–45; corollas yellow, 3 mm. Cypselae 3 mm; pappi either of erose scales 0.3–0.6 mm, or of 3–5-aristate scales 2–3 mm.
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