Woody climbers. Young branchlets, leaf rachises, petiolules, and leaflet blades abaxially on midvein pubescent. Branchlets and leaves with prickles. Leaves (3 or)5-11-foliolate; petiolules 2-5 mm; leaflet blades alternate or opposite, ovate, ovate-elliptic, or long elliptic, 7-13 × 2.5-5 cm, thickly leathery, base rounded to cordate, margin entire or subentire. Inflorescences axillary or terminal. Flowers 4-merous. Perianth in 2 series. Sepals pale purplish green. Petals 2-3 mm. Male flowers: stamens 4. Female flowers: carpels (3 or)4(or 5). Fruit pedicel obsolete or to 3 mm; follicles with prickles to 1 cm. Seeds 6-8 mm in diam. Fl. Apr-May, fr. Oct-Dec.
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