Herbs, perennial, rhizomatous. Stems 1 or 2, erect, 60-80 cm tall, simple, glabrous. Basal and lower leaves withered by anthesis; median stem leaves long petiolate; petiole 3-7 cm, slender, not winged, glabrous, not auriculate; blade broadly triangular, 5-8 × 3-5 cm, membranous, glabrous, pinnately veined, veins inconspicuous, base hastate, margin unequally coarsely dentate or sublacerate in upper part and with 2-4 spreading, serrate-lacerate lateral lobes at base, apex acuminate-attenuate. Upper leaves shortly petiolate, similar but smaller upward. Capitula nodding, discoid, solitary, terminal and in axils of upper leaves, forming a lax terminal racemose cyme; peduncles erect, elongated, cygneous at apex, usually exceeding leaves, sparsely puberulent, with 1 or 2 linear bracteoles. Involucres campanulate, 8-10 × 7-9 mm, calyculate; bracts of calyculus 3 or 4, linear-subulate; phyllaries 12 or 13, ovate-lanceolate, ca. 8 × 1.5-2 mm, leathery or subleathery, glabrous, margin narrowly scarious, apically acutely acuminate and purplish. Disk florets many; corolla yellow, 7-8 mm, with 3-3.5 mm tube and funnelform limb; lobes ovate-oblong, 1-1.2 mm, apically acute, papillose. Anthers ca. 2.5 mm, basally shortly obtuse-auriculate, appendages ovate-lanceolate; antheropodia rather short, basally somewhat dilated. Style branches ca. 1 mm. Achenes cylindric, 4-5 mm, glabrous. Pappus white, ca. 6 mm. Fl. Sep-Oct. 2n = 40*.
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