Flowers 8–12, in racemes that are leaf-opposed and appear terminal on short shoots; axis usually unbranched, terete, glabrescent; bracts and bracteoles very early caducous, the bracts c.2 × 0.5 mm, spathulate, with ciliate margins; bracteoles c.1.5 mm long, spathulate; pedicels 1.5–2 cm long, terete.
Pod 10–14 × 3.5–4.5 cm, asymmetrically obtriangular, flattened, glabrous, ridged along each side of upper margin, explosively dehiscent; stipe c.8 mm long.
Ovary 2-ovulate, asymmetrically obovate-elliptic, c.3.5 mm long, glabrous; stipe very short, glabrous; style c.7 mm long, glabrous; stigma capitate.
Seed c.2.8 × 2.3 × 0.8 cm, very broadly ellipsoidal, flattened, dull brown with a darker rim.
Petals white, 4–5, 7 × 1.5 mm, narrowly elliptic to narrowly obovate, with a strong midvein.
Stamens 8–10; filaments 5.6–6 mm long, glabrous; anthers 2 × 3 mm.
Branchlets brown becoming grey, pubescent, strongly lenticellate.
Sepals 4, 4.5 × 2 mm, ovate, reflexed at anthesis, glabrous.
Deciduous tree 6–10 m tall; bark grey, smooth.