Trees, small, to 6 m tall, ca. 28 cm d.b.h. Branches dark brown, terete, glabrous, slightly striate. Leaves paripinnate; petiole 2.5-4 cm, reddish brown including axis; leaflets often 2(or 3) pairs; petiolules ca. 4 mm; blades: those on lower part of axis ovate, those on upper part of axis elliptic-lanceolate or subovate, 7-16 × 2.5-5.5 cm, papery, both surfaces glabrous and with slightly visible reticulate veins, base cuneate, margin entire, apex shortly acuminate. Thyrses terminal, ca. 10 cm or longer. Sepals 4, imbricate, ovate, outer 2 smaller, ca. 1.5 mm in diam., inner 2 ca. 2.5 mm in diam., glabrous, margin ciliate. Petals 4, spoon-shaped, ca. 1 mm, abaxially glabrous, adaxial surface and margin brown villous. Disk 4-lobed, glabrous. Stamens 8; filaments ca. 1.5 mm, densely brown villous except at apex. Ovary globose, ca. 1.8 mm in diam., tuberculous, white tomentose. Fruit (immature) ovoid, with conical tubercles. Fl. spring.
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