Climbing shrubs, mid-sized, deciduous. Branchlets glabrous, lenticels conspicuously raised; buds densely rusty strigose; pith white or brown, lamellate. Petiole 2.5-5 cm, glabrous; leaf blade abaxially glaucous, adaxially green, orbicular or ovate to narrowly ovate or oblong-ovate, 6-11.5 × 4-7 cm, thickly leathery, abaxially glabrous, adaxially glabrous or sparsely strigillose, midvein and lateral veins subconspicuous abaxially, lateral veins 7 or 8 pairs, base obtuse to cordatulate or rounded, margin usually setose-serrulate, occasionally coarsely dentate, apex cuspidate to abruptly acute to acuminate. Inflorescences 1-flowered; pedicels 1-1.5 cm, glabrous. Flowers pink or white. Sepals 4, oblong, 4-5 mm, pubescent abaxially near margin and adaxially throughout. Petals 4 or 5, obovate, 8-9 mm. Filaments 2.5-3.5 mm; anthers yellow, ovoid, ca. 1 mm. Ovary subglobose, ca. 3 mm, thinly grayish pubescent; styles slightly longer than ovary. Fruit dark green, cylindric, ca. 1.5 cm, ca. 8 mm in diam., glabrous, lenticels yellowish brown. Seeds 1-1.5 mm. Fl. May-Jun, fr. unknown.
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