Stipules early-caducous, up to 15 × 2 mm, shortly connate at the base, erect, filiform, linear or lanceolate; auricles reniform to semi-circular, caducous independently of the stipules.
Inflorescences terminal and/or axillary racemes, up to 5 cm long, pubescent with dark or brown hairs; bracts 2–3 × 1.5–2 mm, caducous, ovate to oblong, acute at the apex.
Shrub to 6(10) m tall, branching low down or at ground level; bark smooth, non-scaly, reticulately fissured at the base, greyish white.
Pods yellowish brown or light brown, 5–9 × 2–3 cm, oblong to obovate, with spreading ventral flanges.
Sepals 0–4, 0.5–3 × 0.5–1.5 mm, linear, linear-lanceolate or rudimentary, ciliate on the margins.
Flowers up to 9 × 5 mm; pedicels 2–4 mm long; bracteoles 5–10 × 3–5 mm, obovate or orbicular.
Ovary 2–5 × 1–2 mm, up to 7-ovulate, densely pubescent, stipe to 3 mm long.
Stamens 10, united to 6 mm at the base; filaments 7–15 mm long.
Young branchlets glabrous, or pubescent with brown hairs.
Seeds up to 4, 12–20 × 10–15 mm, oblong to ovoid.
Dormant axillary buds globose or ovoid.
Petals absent.