Subshrubs or herbs, large, scandent. Stems becoming woody, at first white arachnoid, glabrescent. Petiole 3-7 cm, abaxially sparsely arachnoid or subglabrescent; leaf blade abaxially grayish, adaxially green, ovate or triangular, 7-13 × 4-12 cm, papery or submembranous, abaxially arachnoid, adaxially sparsely arachnoid and glabrescent, palmately 3-7-veined from base, base cordate, margin repand or sinuate-denticulate with mucronulate teeth, apex acutely shortly acuminate-apiculate. Upper and synflorescence leaves smaller, basally cordate or truncate. Capitula radiate, 2.5-3 cm in diam., numerous, arranged in usually 5-10-headed terminal and upper axillary compound corymbs, forming pyramidal, divaricately branched paniculoid thyrses; peduncles 1-2 cm, stout, sparsely arachnoid and shortly glandular pubescent, with 1 or 2 linear-subulate bracts or bracteoles. Involucres narrowly campanulate, 8-10 × 6-8 mm, calyculate; bracts of calyculus 7 or 8, linear-subulate, 4-6 mm, pubescent, spreading or reflexed; phyllaries 13, linear-subulate, 1-2 mm wide, herbaceous, sparsely arachnoid, margin scarious, apically acute and puberulent. Ray florets 8; corolla tube 5-5.5 mm; lamina yellow, oblong, ca. 10 × 2-2.5 mm, 4-veined, 3-denticulate. Disk florets ca. 20; corolla yellow, 10-11 mm, with 3-3.5 mm tube and narrowly funnelform limb; lobes oblong-lanceolate, ca. 2 mm, apically acute. Anthers ca. 4.5 mm; anther tails ca. equaling antheropodium; appendages ovate-oblong; antheropodia hardly expanded toward base. Style branches ca. 4 mm, fringed with very short papillae, terminal tuft absent. Achenes cylindric, ca. 4 mm, glabrous. Pappus reddish, 9-10 mm. Fl. Sep-Oct.
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