Evergreen trees, 4.5-12 m tall, 5-12 cm d.b.h. Branchlets green, brown when dry, cylindric, longitudinally striate, densely brown pubescent or nearly glabrous. Leaves alternate; petiole 10-15(-20) mm, slightly pubescent or nearly glabrous; leaf blade greenish abaxially, yellow-green when dry, green adaxially, green-brown when dry, ovate or ovate-oblong, 8-14 × 2.5-5 cm, thinly papery, nearly glabrous or densely ferruginous pubescent along veins on both surfaces when young, later pubescent along midrib or glabrous, trinerved, first and second pairs lateral veins joined at apex and inflexed, midrib and lateral veins distinctly convex abaxially, slightly concave adaxially, base cuneate or subrounded, asymmetrical at sides, apex acuminate. Umbels (1 or)2-5, inserted in leaf axil of short branchlets, 6-flowered; short branchlets 2-3 mm, densely ferruginous pubescent; peduncle of male umbel 0.6-1.2 cm, of female umbel 0.5-0.6 cm; involucral bracts 6, slightly pubescent on outer surface or glabrate. Male flowers yellow-green; pedicels obconic, ca. 1 mm, ferruginous pubescent; tepals 6, oblong-ovate, ca. 3 × 1.2-1.5 mm, only slightly pubescent on lower part of outer surface, glabrous on inner surface, densely glandular punctate; stamens 9, ca. 2.5 mm; filaments densely villous, 2-glandular near base in 3rd whorl; glands ovate, shortly stipitate; reduced ovary nearly clavate, ca. 1 mm, attenuate at apex into a style; style ca. 1 mm; stigma peltate, papillose. Female flowers yellowish; pedicels 2-2.5 mm, densely ferruginous pubescent; tepals 6, oblong, ca. 2.5 × 0.7 mm, slightly pubescent on lower part of outer surface; reduced stamens 9; filaments villous, 2-glandular near base in 3rd whorl; glands ovate, shortly stipitate, without anthers; ovary ovate, ca. 1.5 × 0.4 mm, glabrous, attenuate at apex into a style; style ca. 2 mm; stigma peltate, papillose. Fruit ellipsoid, ca. 9 mm, glabrous, mucronate at apex; stipes ca. 6 mm, densely ferruginous; hypocarpium 1-1.5 mm. Fl. Oct-Mar of next year, fr. May-Aug.
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