Stem erect, 74-125 cm tall, 4-8 mm in diam. at base, densely reddish brown pilose. Basal leaves petiolate; petiole 22-30 cm, densely reddish brown pilose, base narrowly sheathed; leaf blade hastate or triangular-hastate, 6-18 × 10-18 cm, abaxially densely brown pilose, adaxially deciduously shortly scabrous-pilose, palmately veined, margin irregularly dentate, apex acute or subrounded; sinus ca. 1/3 as long as leaf blade, broad; basal lobes suborbicular, slightly divergent. Middle stem leaves numerous, dense, shortly petiolate; sheath enlarged, densely reddish brown pilose; leaf blade triangular-cordate, 5.5-11 × 7.5-12 cm, margin denticulate, apex acuminate; sinus broad, basal lobes divergent. Distal stem leaves sessile, ovate, abaxially brown pilose, adaxially scabrous, base semiamplexicaul. Synflorescence racemose, 22-45 cm, reddish brown pilose; leaflike bracts ovate to lanceolate, 8-30 mm, proximal ones larger, sessile, distal ones smaller, shortly petiolate; peduncles to 1 cm. Capitula numerous; supplementary bracts linear-lanceolate. Involucre narrowly campanulate, 7-12 × 3-5 mm, outside glabrous; phyllaries 6-8, in 2 rows, oblong or narrowly oblong, 1.5-2.5 mm wide, apex acute; inner phyllaries broadly membranous at margin. Ray florets 2 or 3, yellow; lamina oblanceolate, 1-1.2 cm × 3-4 mm, apex obtuse; tube 5-6 mm. Tubular florets numerous, 1-1.1 cm; tube 5-6 mm. Pappus yellow, as long as or slightly shorter than tube of tubular corolla. Fl. Jul-Aug.
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