Rather large tree, up to 30 m high and 70 cm diam., with thinly scaling, reddish gray bark. Leaves oblong to lanceolate, 16-35-nerved, 20-45 by 8-19 cm, with rounded to acute apex, obtuse to acute base, and nearly entire to manifestly dentate margin. Petiole 2½-6½ cm long, with half-obcordate, caducous wings. Wings broadening towards the apex, the apex rounded, extending distinctly above its insertion, at the basis 5-8, near the apex 15-30 mm broad, glabrous to densely sericeously hirsute beneath. Raceme 2-6-flowered, up to 15 cm long with straight to rather tortuous axis. Flowers probably apetalous, ca 7½ cm diam. Sepals 5, ca 40 by 25 mm, densely sericeously hirsute outside. Stamens ca 750, 9-11 mm long. Carpels ca 18-19, ca 4½ by 1½ mm, with ca 8 mm long, in the basal half parallel, in the apical half slightly spreading styles with a cushion-shaped stigma, stigma ca 0.4 mm thick and 1 mm diam.; each carpel with 5-9 ovules. Fruit indehiscent, yellowish, appressed globular, 3½ cm high, 6 cm diam. including the enclosing sepals. Sepals in fruit enlarged to 6½ by 5½ cm, at the base up to 3 mm thick, not completely covering the carpels at the apex. Carpels 25 by 16 mm, up to 5-seeded. Seeds black with reticulate surface, exarillate.
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A tree. It grows 30 m high. The trunk is 70 cm across. The leaves are sword shaped and 20-45 cm long by 8-19 cm wide. There are wings on the leaf stalks. The flowers are 7.5 cm across. The fruit are the size of an orange. They are flattened and 3.5 cm high by 6 cm wide. There can be 5 seeds. The seeds are black.
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