Stem erect, 80-200 cm tall, 5-10 mm in diam. at base, proximally glabrous or shortly yellowish brown pilose, distally and synflorescence densely shortly yellowish brown pilose. Basal leaves petiolate; petiole 18-59 cm, shortly brown pilose, base sheathed; leaf blade abaxially pale green, adaxially green, reniform, 8-30 × 13-40 cm, abaxially shortly brown pilose, adaxially glabrous, palmately veined, with 5-7 prominent principal veins, margin regularly dentate, apex rounded, sometimes mucronate; sinus ca. 1/3 as long as leaf blade, broad; basal lobes suborbicular, not divergent. Middle to distal stem leaves shortly petiolate; sheath enlarged; leaf blade reniform, 4.5-5.5 × 5-6 cm. Synflorescence racemose, 27-75 cm; proximal leaflike bracts ovate or ovate-lanceolate, to 6 × 2 cm, smaller distally, herbaceous, margin dentate, apex mucronate; distal leaflike bracts lanceolate; peduncles: proximal ones to 9 cm, smaller distally, slender. Capitula numerous; supplementary bracts narrowly lanceolate to linear. Involucre campanulate, 7-20 × 5-14 mm, outside shortly brown pilose; phyllaries 8-14, in 2 rows, oblong, 3-5 mm wide, apex acute; inner phyllaries broadly membranous at margin. Ray florets 5-9, yellow; lamina oblong, 1.5-2.5 cm × to 6 mm wide, apex obtuse; tube 5-11 mm. Tubular florets numerous, 8-17 mm; tube 5-9 mm. Achenes dark brown, fusiform-cylindric, 6-8 mm. Pappus yellowish brown, shorter than tubular corolla. Fl. and fr. Jul-Oct, 2n = 60.
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A herb. It grows to about 1.5 m high. The leaves have stalks. The leaves are 5-23 cm long by 6-30 cm wide. They are kidney shaped. They have teeth along the edge and the base is heart shaped. The flower heads are yellow. The fruit is a dry fruit that does not split open to release its seed.
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