Climbing shrubs, small to mid-sized, semi-evergreen. Floral branchlets densely brownish tomentose to ferruginous hirsute or brownish velutinous, older branches glabrous or with ± relict hairs, lenticels inconspicuous; pith white, lamellate. Petiole 1-5 cm, densely yellowish tomentose or densely brownish long hirsute or velutinous; leaf blade adaxially green, narrowly ovate to broadly ovate to orbicular-ovate, or narrowly ovate to ovate-lanceolate to oblong, 6-18 × 2.5-10 cm, papery to leathery, abaxially densely yellowish to sparsely grayish stellate tomentose, adaxially scabrous to densely softly strigose to strigose or pilose, sometimes only strigose or pilose on midvein and lateral veins, rarely glabrous, midvein and lateral veins conspicuous abaxially, inconspicuous to subconspicuous adaxially, lateral veins 7-10 pairs, base rounded to cordate, margin setose-serrulate, apex acuminate to long acuminate. Inflorescences cymose, 1-7-flowered, densely brownish villous-pubescent; peduncles 4-10 mm; pedicels 0.7-2 cm; bracts subulate, 2-6 mm. Flowers white. Sepals 5, ovate to oblong-ovate, 4-9 mm, abaxially densely brownish tomentose. Petals 5, obovate to narrowly obovate, 0.6-1.7 cm. Filaments 3-7 mm; anthers yellow, ovoid, ca. 1 mm, sagittate at base. Ovary globose, ca. 3.5 mm in diam., densely yellowish villous; styles ca. 4 mm. Fruit ovoid to oblong-ovoid, 1.5-2 cm, glabrous when mature, lenticellate; persistent sepals reflexed. Seeds ca. 1 mm. Fl. May-Jun, fr. Oct.