Slender tree to 7 m high. Shoots, branchlets, leaf axes and peduncles pubescent. Leaves trifoliolate or pinnate; rachis 0.5–4.5 cm long; leaflets 3–5, occasionally to 7, opposite; lamina narrowly elliptic or obovate-oblong, obtuse to acuminate, oblique at base, 2–7.5 cm long, 1–3 cm wide, puberulent to glabrous above, pubescent below; petiolules to 2 mm long; petiole 1.2–4.3 cm long. Panicles corymb-like, 2–5 cm long and wide; peduncles slender; pedicels 2–4 mm long, pubescent. Calyx lobes ovate or oblong, 3–4.5 mm long, tomentose. Petals 5, broadly ovate or elliptic, 4.5–5.5 mm long, tomentose outside. Disc oblique, saucer-shaped with lobed ridge on one side, glabrous. Stamens 8. Capsule stipitate, obovoid-obcordate, 1.5–1.8 cm long, 1.2–1.6 cm wide, pubescent.
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