Stem erect, 25-30 cm tall, 1.5-2 mm in diam. at base, proximally glabrous, distally and synflorescence densely white arachnoid-puberulent. Basal leaves petiolate; petiole to 13 cm, glabrous, base sheathed; leaf blade reniform, 2-3.3 × 4.5-6 cm, glabrous, palmately veined, veins prominent abaxially, margin regularly denticulate, apex rounded, rarely retuse; sinus ca. 1/4 as long as leaf blade, broad. Stem leaf 1, similar but smaller, narrowly petiolate, base broadly sheathed. Capitula 4 or 5, in lax corymb; leaflike bracts navicular, 1.6-4 × 0.6-1.2 cm, glabrous, margin entire; peduncles 3-9 cm; supplementary bracts to 1.2 cm. Involucre campanulate, 8-10 × 10-12 mm, outside glabrous; phyllaries 10-12, dark brown, usually curved, lanceolate, 1.5-2 mm wide, apex acuminate; inner phyllaries membranous at margin. Ray florets yellow; lamina linear, 1.1-1.3 cm × ca. 1 mm, apex acute; tube ca. 5 mm. Tubular florets numerous, yellow, 6-7 mm; tube as long as limb of tubular corolla. Pappus yellowish white, as long as tubular corolla. Fl. Aug.
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