Herbs, perennial, rhizomatous. Stem solitary, erect, 50-100 cm tall, shortly pubescent, simple or branching into synflorescences in upper part. Basal and lower stem leaves present at or sometimes withered by anthesis; petiole expanded but not auriculate at base; blade oblanceolate-spatulate, to 30 × 10 cm, papery, abaxially sparsely arachnoid or pubescent, adaxially sparsely adpressed pubescent to subglabrous, lyrate-pinnatipartite with large, triangular-hastate, 8-10 × 6-8 cm, acuminate, irregularly dentate, basally truncate or subcuneate terminal lobe and 6-12 oblong to lanceolate, acute-acuminate, irregularly dentate smaller lateral lobes. Median stem leaves similar, shortly petiolate or sessile, basally ± auriculate; auricle to 2 cm wide, rounded, incised or lacerate-dentate. Upper stem leaves gradually smaller upward, sessile, with narrower lobes and attenuate terminal lobe, laxly dentate or subentire. Capitula radiate or discoid, numerous, arranged in compound terminal corymbs; synflorescence branches and peduncles fulvous puberulent, peduncles 5-15 mm, slender, linear-bracteate at base; bracteoles 1-3, linear-subulate, 2-3 mm, puberulent. Involucres narrowly campanulate, 5-6 × 2-3 mm, calyculate; bracts of calyculus 3-5, linear; phyllaries 8 or 9, linear-lanceolate, ca. 1 mm, apically acute, purplish and puberulent to glabrous. Ray florets absent or 5; corolla tube ca. 3.5 mm, glabrous; lamina oblong, 6-8 × 1-1.5 mm, 3-denticulate. Disk florets 12-15; corolla yellow, 7-7.5 mm, with ca. 3.5 mm tube and funnelform limb; lobes ovate-triangular, ca. 1 mm, apically acute, papillose. Anthers ca. 2.2 mm, basally distinctly subacutely auriculate, appendages ovate-lanceolate; antheropodia short, basally distinctly dilated. Style branches ca. 1.2 mm. Achenes cylindric, 3.5-4.5 mm, pubescent. Pappus white, 6-7 mm. Fl. Jun-Aug, fr. Sep-Oct.
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