Tree, up to 30 m high, 50 cm diam., with small buttresses, greyish brown bark, slightly flaky in large plates, and greyish red heartwood. Leaves elliptic-oblong, ca 15-20-nerved, 13-18 by 6-10 cm, with obtuse to acute, often slightly acuminate apex, rounded-obtuse to obtuse base, and undulate to dentate margin. Petiole 4-8 cm long, with usually 2½-5 mm, rarely up to 10 mm broad wings; wings with slightly auriculiform apex, caducous. Raceme 1-5-flowered, up to at least 4 cm long. Flowers apetalous, ca 4½ cm diam. Sepals 5, ca 21-25 by 16-19 mm, sericeous outside. Stamens ca 300, 6-7 mm long. Carpels ca 11, ca 8 by 3½ mm, with ca 7 mm long spreading styles with a cushion-shaped stigma, stigma ca 0.3 mm thick and 0.8 mm diam.; each carpel with 3-4 ovules. Fruit unknown.
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