Annuals, 5–35 cm; taprooted . Stems 0. Leaves basal; petiolate; blades linear to narrowly elliptic, 3–20 cm, margins usually pinnately lobed (with narrow rachis and linear lobes), rarely entire, apices acuminate, faces glabrous or lightly scurfy-puberulent. Peduncles erect or curved-ascending. ebracteate. Involucres ovoid to fusiform in fruit, 10–22 mm. Phyllaries: apices erect, acute to acuminate, abaxial faces glabrous; outer deltate; inner lanceolate, (midveins often purple, thickened). Florets 5–50; corollas yellow, equaling or surpassing phyllaries by 1–3 mm. Cypselae columnar, 4.5–7 mm; pappi of 5, white or light brown, linear-lanceolate, aristate scales 4–11 mm (arcuate, scarcely involute, apices acuminate, faces usually glabrous, rarely villous, midveins brownish, stout, widths 1/5–1/3 bodies, tapered distally), aristae (white or brown) barbellate. 2n = 36.
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