Tall tree, up to 20(-40?) m high, 40 cm diam., with brown and gray bark, scaling off in thin plates. Leaves oblong to oblanceolate, ca 25-35-nerved, 25-70 by 8-25 cm, with acute, often slightly acuminate apex, rounded base, and manifestly dentate margin. Petiole 2½-5 cm long, with obovate wings; wings 2½-5 by 1½-3 cm (on saplings up to 10 by 6 cm), with rounded apex and slightly to manifestly dentate margin, caducous. Flowers solitary, terminal, ca 20 cm diam. Sepals elliptic, 25-40 by 20-30 mm. Petals yellow, ca 10 by 7½ cm. Stamens in 2 distinct groups, the outer ones ca 600, 10-12 mm long, straight in bud, the inner ones ca 100, 17-25 mm long, with their apex reflexed in bud; on the outside a small number of staminodes, 6-14 mm long. Carpels 14-16, ca 10 by 3 mm with 22 mm long styles, each with ca 25 ovules. Fruit indehiscent, 5-7½ cm diam. including the enclosing sepals, which are ca 7 by 5 cm, at the basis 8 mm thick. Carpels ca 25 by 11 mm, 1-seeded. Seeds obovoid, 6 by 4 mm, finely shortly echinate, with an 8 mm long, membranaceous aril.
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A medium sized tree. It grows 20-40 m tall. The trunk can be 40 cm across. The leaves are oblong and 25-70 cm long by 8-25 cm wide. The leaf stalks have wings. The leaves are leathery and prominently toothed. The flowers are yellow and 10 cm across. The fruit are large and round. It is 5-7.5 cm across. It has fleshy sepals around it. There is 1 seed. The seed are 6 mm long by 4 mm wide.
A tropical plant. In the Philippines occurs only from Quezon, Camarines, Sorsogon, Samar and Leyte growing in primary forest at low altitudes. It grows up to 1000 m altitude.
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Primary forests at elevations up to 1,000 metres.
In primary forests at low altitude, up to 1000 m.
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