Tuber enlarged. Stem and branchlets slender, longitudinally sulcate, densely pubescent. Tendrils 6-9 cm, densely pubescent. Leaves pedately 3-7-foliolate; petiole 2-3 cm; leaflets broadly ovate-lanceolate to rhombic, margin sparsely serrate; median leaflets 3-6 × 3-3.5 cm. Flowers unknown. Fruit ovoid, 3.5-4.5 × 3-3.5 cm; fruiting pedicel curved, 5-8 cm. Seeds (immature) yellow-brown, broadly ovoid, ca. 13 mm in diam., unwinged; margin 1-2 mm wide, erose. Fr. Sep.

● Open forests in valleys; 1400-2700 m. NW Yunnan.