Tree up to c. 30 m. Twigs glabrous or puberulous. Leaves elliptic or oblong or ovate-oblong, (5-)10-15(-25) by (3-)5-10(-12) cm, rounded to cuneate at the base, acuminate to cuspidate at the top, tip usually obtuse, sometimes acute, glabrous or puberulous, chartaceous to herbaceous, usually finely and distinctly reticulate beneath; nerves 8-10(-12) pairs; petiole 5-10 mm, 1-2 mm Ø, glabrous or puberulous. Panicle axillary or terminal, also on leafless older nodes, (5-)10-30cm, branched up to the second order, without definite peduncle, more or less pendulous, not woody; main axis more or less angular; primary axes 2-5 pairs, the lower ones usually with 1-3 pairs of 5-25 cm long racemules. Bracts of axes triangular or narrowly triangular, 1-6 mm, usually caducous. Bracts of the flowers narrowly triangular to linear, ½-l mm, persistent. Pedicels 1-3 mm, c. ¼ mm Ø. Receptacle c. ½ mm high, c. 2 mm wide, puberulous, inside sometimes minutely tomentose. Sepals deltoid to triangular, (¼-)½-1¼ mm. Stamens 5 (4), reduced and mostly permanently inflexed in ♀ flowers; filaments 21l2-31l2 mm, glabrous; connective c. ½(-¾) mm, not conduplicate; anthers linear, V4-V2 by c. ¼ mm, latrorse. Ovary reduced in ♂ flowers, subglobose, 2(-3)-locular, 1-2 mm, puberulous; style 1-2 mm, c. ¼ mm Ø, puberulous; stigma capitate, c. ¼ mm. Ovules inserted on the surface of the septs. Capsule (sub)globose or more or less obovoid, 2-3 mm, usually recurved; valves 2, rarely 3. Seeds ½-l by c. ¼ mm; acute apical part of the wing half as long as the seed proper, basal part mostly short.
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A tree. It grows 10-20 m tall. It usually branches near the base. The crown is irregular and dense. The branches are reddish brown. The leaves are opposite and have short leaf stalks. They are narrowly oval. The base is rounded or wedge shaped. They taper to the tip. They are light green. They are 7-25 cm long by 3-12 cm wide. The leaf stalk has a furrow on the upper side. The flowering shoots are slender and drooping. They are in the axils of fallen leaves. They are 7-30 cm long and have many flowers. The flowers are pale green or yellow. The fruit are 2-celled capsules. The seeds are very small.