Leaves 6–12 cm long; petioles 2–4 mm long; rachis deeply canaliculate with raised and winged margins; stipels present, rusty-pubescent; leaflets in 20–45 overlapping pairs, the middle leaflet pairs the largest, 5–20 × 1–4 mm, narrowly oblong-falcate, acute to round at the apex, rounded to cordate at the base, glabrous or pubescent; midveins excentric, with 2–3 secondary veins diverging fanwise from the proximal leaflet base.
Inflorescences of compact, terminal and/or axillary panicles up to 5 cm long, densely puberulous; bracts 2–4 × 2–3 mm, ovate to deltate, caducous, pubescent; bracteoles 6–10 × 3.5–6 mm, orbicular, pubescent.
Stipules persistent, up to 15 × 1.5 mm, shortly connate at the base, linear, pubescent; auricles up to 7 × 5 mm, reniform, tooth-like to digitate, pubescent.
Pods 4–13 × 2.5–4 cm, round to obtuse at the apex, flanges suberect or revolute.
Sepals 5; 2–4 × 1–3 mm, oblong to obovate, imbricate, margins densely ciliate.
Tree 1.5–12 m tall; bark reticulate to deeply fissured longitudinally, grey.
Stamens 10, united to 1 mm at base, filaments 9–15 mm long.
Ovary 3–5 × 1–2 mm, up to 8-ovulate, stipe to 2.5 mm long.
Flowers 4–6 × 2.5–3 mm; pedicels up to 2.5 mm long.
Seeds up to 15 × 15 mm, circular to oblong.
Dormant axillary buds much flattened.
Petals 0–3, filiform, linear.