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Leaves imparipinnate; stipules 7–9 × 1 mm, very narrowly ovate, caducous; petiole 0.5–1 cm long, sparsely pubescent; rachis 6–9.5 cm long, sparsely pubescent; leaflets subopposite to alternate, in 4–5 pairs, 2.7–5.2 × 0.9–1.6 cm, elliptic to rhombic-elliptic, often asymmetric, apex rounded or retuse, base cuneate, glabrous; venation slightly prominent on both surfaces, marginal vein prominent, areolae often with dark patches (?resin) in older leaves.
Inflorescences axillary and terminal, paniculate; axis sparsely puberulous to pubescent; bracts c.2 mm in diameter, suborbicular, concave, pubescent; bracteoles c.1 mm long, very broadly ovate, pubescent; bracts and bracteoles falling at anthesis.
Ovary 1–2-ovulate, c.2 mm diameter, subcircular, pubescent particularly on the margins; stipe very short; style c.3.5 mm long, glabrous; stigma capitate, bilobed, papillose.
Pod 1-seeded, 2.5–3 cm in diameter, suborbicular, flattened, slightly asymmetric, glabrous, with numerous resin-filled vesicles in the pod wall, tardily dehiscent.
Calyx lobes 4, c.3 × 1–1.5 mm, ovate, thinly puberulous to pilose outside, mainly towards the apex and on the margins, glabrous to pilose inside.
Young inflorescence branches with the distichous buds tightly packed into short bracteate spikes.
Branchlets brown, smooth with fine longitudinal cracks, very sparsely puberulous, glabrescent.
Stamens 8–10; filaments c.6 mm long, glabrous; anthers dorsifixed.
Flowers 5–7 mm long, distichously arranged on the axis, sessile.
Seed c.15 × 12 mm, broadly ellipsoidal, somewhat flattened.
Shrub, or subshrub from a woody rootstock, 1–3(4) m tall.
Petals absent.
