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Voucher: Kostadinov 095, (URV)
Brief description: A monoecious tree to 20 m. Leaves are simple, alternate, entire, oblong to lanceolate, shining above, margins with bristle-teeth. Flowers are unisexual, the staminate in slender catkins, the pistillate solitary or in small spikes. Fruits are a nut (acorn), partly enclosed by the persistent involucre -- the acorn cup. The acorn cup is enclosing 2/3 of the nut.
Campus data: Very rarely cultivated on campus. Two small trees encountered.