Climbing shrubs, large, deciduous or semi-evergreen. Branchlets densely brownish velutinous, lenticels linear or punctiform, subconspicuous; pith whitish or brownish, lamellate. Petiole 2-8 cm, stout, densely yellowish velutinous; leaf blade oblong to ovate or narrowly elliptic to narrowly ovate-lanceolate, 5-20 × 2.5-13 cm, papery, abaxially whitish and ± densely brownish tomentose with imperfectly stellate hairs, hairs simple to 2-4-furcate, glabrous or not when leaves mature, adaxially green and sparsely strigillose, soon glabrous, midvein and lateral veins conspicuous abaxially, sulcate or not adaxially, lateral veins 6-10 pairs, veinlets reticulate, conspicuous with distinct and raised parallel cross-bars abaxially, base auriculate-cordatulate, apex acuminate to long acuminate. Inflorescences 1-or 2-branched, (1-)3-7-flowered, densely yellowish brownish tomentose; peduncles 4-10 mm; pedicels 0.6-1.6 cm; bracts subulate, 3-6 mm. Flowers rose-pink. Sepals 5 or 6, ovate to narrowly ovate, 6-8 mm, both surfaces densely brown tomentose. Petals 5 or 6, obovate to narrowly obovate, 1-1.6 cm. Filaments 4-8 mm; anthers yellow, ovoid, ca. 1 mm, sagittate at base. Ovary globose, 6-8 mm in diam., densely grayish pubescent; styles ca. 5 mm. Fruit cylindric-oblong, 3-4 cm, densely long whitish tomentose; persistent sepals reflexed, both surfaces densely brown tomentose. Seeds ca. 2 mm. Fl. May, fr. Oct. 2n = 58*.
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