Large climbing shrub or liana. Twigs densely ferruginous-tomentose, gradually glabrescent. Leaves 6-to c. 25-jugate, petiole, rhachis, and petiolules pubescent like the twigs. Leaflets sub-sessile, lateral ones oblique, oblong to lanceolate (lower pairs ovate, c. 0.75 by 0.5 cm), terminal ones equilateral, oblong-elliptic to oblong-obovate, all c. 1.5-2.5 by 1/3-¾ cm, thin-chartaceous, thinly ferruginous-pilose, mainly beneath, lower surface minutely papillose; base in lateral leaflets very oblique, truncate to faintly cordate, in terminal ones equilateral, narrowed, slightly cordate; apex blunt to rounded; nerves 6-7 pairs, nearly transverse, straight, distinctly looped and joined. Inflorescences axillary, partly pseudo-terminal, each composed of (1-)3 axes, the central one of which is much stronger developed than the lateral ones, and up to 8 cm long; all narrowly paniculate, rather densely ferruginous-pubescent. Calyx 2.5 mm high, outside with a few long hairs. Corolla 5 mm long. Pistils glabrous except a few bristles near the base. Fruits ovoid to ellipsoid, curved, 1.5-1.75 by c. 0.5 cm.