Botanical descriptions Habitat and ecology Distribution
|Diagnostic characters :||Evergreen trees. Flowers unisexual on the same plant, male in spike-like catkins, female, sessile, densely clustered on lateral or sub terminal spikes, Fruit an acorn, cupule covering 1/3 to 2/3 of the acorn, depressed at the top.|
|Habit :||Evergreen tree 10 to 15 m high. Branches ascending to main trunk.|
|Trunk & bark :||Trunk straight. Bark fissured, lenticellate, brown, inner bark brown, wood whitish. .|
|Branches and branchlets or twigs :||Twigs terete, slightly fissured and lenticellate, light brown, glabrous.|
|Exudates :||Exudate absent.|
|Leaves :||Leaves simple alternate and spiral, 7-15 by 2-4 cm, lanceolate or elliptic-oblong, apex acuminate, base acute, slightly asymmetric, margin entire, blade leathery to papery, glabrous on both sides, reddish when young.|
Midrib flat above, primary vein single, secondary veins oblique to the midrib, widely parallel, tertiary veins oblique. Petiole glabrous.
Stipules present, falling off early.
|Inflorescences or flowers :||Flowers unisexual, axillary, small, light yellowish green grouped in loose catkins, rachis tomentose with short hairs. Pedicel less than 0.5 cm long.|
|Fruits :||Fruit is an acorn with cupule enclosing 1/3 to 2/3 of nut, becoming woody at base. The top of the fruit (nut) is depressed globose, 1.5-2.2 cm by 2-2.6 cm.|
|Seeds :||Seed 1.|
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