Inflorescences paniculate, terminal, up to 35 cm long; pedicels 5–7 cm long, puberulous; bracteoles 3.2 × 1.6 cm, obovate-spathulate, shortly velutinous inside and outside, coriaceous.
Petals 5, white, the upper one 6.5–7.5 cm long, the expanded portion 4.5–5 × 5.5–6 cm, the other petals c.2 cm long, linear from an expanded base.
Hypanthium 1.2–1.5 cm long, shortly velutinous.
Pods 30–35 × 7–8 cm, oblong, brown velutinous.
Seeds 3 × 2 cm, flattened, elliptic.
Branchlets minutely puberulous.
Tree to 18 m tall.
Sepals 5.