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Leaves pinnate; stipules not seen, probably early caducous; petiole 1–4 cm long, glabrous; rachis 2.5–7 cm long, glabrous; leaflets alternate, (3)4–7, 3.5–7.5 × 1.2–2.5 cm, ovate to rhombic to elliptic, often slightly asymmetric, base somewhat asymmetrically cuneate, apex acute to acuminate, the extreme tip rounded or retuse, glabrous; venation prominulous beneath, less so above, lateral nerves joined into a submarginal nerve.
Ovary c.10-ovulate, c.7 × 3 mm, obovate, densely rufous-pubescent particularly on the margins, verrucose in the centre, stipe c.4 mm long, rufous-pubescent; style c.15 mm long, pubescent in the lower third; stigma capitate, bilobed.
Petals 5, pink, c.5 mm wide and 15–16 mm long (25–30 mm according to Harms) including a claw 5 mm long, elliptic, the dorsal petal with a thickened and grooved claw, glabrous, the rest pubescent on the midrib inside.
Calyx lobes 4, 10–12 mm long, one c.8 mm wide, two c.5 mm wide, one c.2.5 mm wide, elliptic to obovate, rufous-pubescent outside, densely sericeous inside except on the overlapping margins.
Stamens 7–10, c.25 mm long, the one opposite the dorsal petal free and almost glabrous, the rest fused and densely pubescent in the basal 5 mm; anthers dorsifixed.
Inflorescences axillary corymbose racemes, sometimes paired, the axis rufous-pubescent; bracts and bracteoles not seen, apparently early caducous.
Pod up to 5 × 2.5 cm, asymmetrically obovate to rhombic, rufous-pubescent and with numerous resiniferous warts, usually 1-seeded.
Tree to 13 m; bark grey or dark brown, smooth, cracking vertically.
Flowers 2.5–3 cm long; pedicels up to 3 cm long, rufous-pubescent.
Branchlets brown, soon grey, striate, glabrous.
Seed c.12 × 10 mm, ovoid, somewhat flattened.
