Shrubs climbing. Branchlets yellowish and glabrous when young. Leaves odd-pinnate; petioles, rachis, and petiolules glabrous; petiolule robust, 4–6 mm; leaflet blade adaxially glossy, narrowly oblong or elliptic, 6.5–16 × 2–5 cm, hard papery, abaxially glandular, adaxially glabrous, lateral veins 5–9-paired, prominent abaxially, reticulate veins curved and anastomosing near margin, base broadly cuneate or subrounded, margin entire, apex acute and slightly emarginate. Inflorescences terminal or axillary; rachis and pedicels densely tomentose. Sepals 5, elliptic, ca. 3 mm, pubescent, apex obtuse. Petals 5, long elliptic, 5–6 × 1.5–2 mm, shortly tomentose, with red glands. Stamens ca. 10, 5 long ones ca. 7 mm, 5 short ones ca. 3 mm and abortive. Carpel 1, ca. 3 mm, densely softly hairy. Follicle long ellipsoid, slightly compressed laterally, 2.5–3.5 × 1.5–1.8 cm, base gradually narrowed into a short stipe, apex shortly beaked; pericarp thin, glabrous abaxially, pubescent adaxially, indistinctly longitudinally striate. Seed black-purple, oblong, 2–2.5 × 1–1.2 cm, base surrounded by 2-lobed aril.
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