Lianas or climbing shrubs, ca. 3 m tall. Branchlets brown, terete, glabrous or hairy when young. Leaves odd-pinnate; petiole, rachis, and petiolules usually glabrous; leaflets 3-or 4-paired; leaflet blade glossy adaxially, lanceolate or oblong-lanceolate, 2.5–10 × 0.8–3.5 cm, subpapery, glabrous on both surfaces, lateral veins 5-or 6-paired, anastomosing near margin, midvein and reticulate veins distinct abaxially, base cuneate, equilateral, margin entire, apex long caudate with obtuse tip. Inflorescences axillary, paniculate with 1–3 axes, 3.5–6 cm; rachis and pedicels shortly pubescent. Sepals ovate, 2–2.5 × 1.5–2 mm, glabrous. Petals yellowish, oblanceolate to spatulate, 5–6 × 2–3 mm, glabrous, longitudinally striate. Stamens ca. 10, alternately longer and shorter. Carpels 5, free. Follicle greenish, dark brown when dry, curved or straight, 1–2 × 0.5–1 cm, with persistent calyx up to 5 mm. Seed 0.6–1.6 × 0.4–0.9 cm, covered by aril.
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