Trees to 20 m tall, to 30 cm in diam. Branches robust, with small, hollow pith; twigs sometimes robust, lenticellate, gray-brown, irregularly striate, with short internodes. Petiole 1-2 cm; leaf blade oblanceolate, obovate, or oblong, (5-)9-16 × 2-5 cm, papery, midvein raised abaxially, impressed adaxially; secondary veins many, dense, 30-36 pairs, oblique, joining at leaf margin; tertiary veins and veinlets slender, conspicuous on both surfaces, base cuneate-decurrent, margin somewhat recurved, apex obtusely acuminate, apiculate, or rounded, sometimes strongly emarginate. Plant dioecious. Male flowers 0.8-1 cm in diam., in a terminal or axillary thyrse; thyrse 8-10 cm, pedunculate; peduncle conspicuously articulate, sometimes 2-foliate at base; pedicels robust, 3-5 mm, 2-bracteolate at base; bracteoles opposite, subulate; sepal ca. 2.5 mm; petals yellow, ca. as long as or slightly longer than sepal; stamens united into 4 bundles; bundle stalk robust, somewhat complanate, broader on lower part, ca. 3 mm, each with 60-70 anthers aggregated into a head, 2-celled, cells longitudinally dehiscent; pistillode semiglobose, slightly angular. Female flowers in a paniculiform thyrse; thyrse axillary, ca. 10 cm; staminode bundles 4, each with 15-20 antherodes, sometimes among them a few fertile, shorter than pistil; bundle stalk 1.5-2 mm; ovary turbinate, 4-loculed; stigma sessile, peltate, 4-lobed, 2.5-3 mm. Young fruit ellipsoid, smooth. Fl. Apr-May, fr. Jun-Aug.
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A tree. It grows to 20 m tall. The trunk is 30 cm across. The leaves are oblong and 9-16 cm long by 2-5 cm wide. Male and female flowers are on separate trees. The fruit are smooth and oval.
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