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Voucher: Kostadinov 117, (URV)
Brief description: Subgenus Lepidobalanus, white oaks. A large, monoecious tree with light gray, flaky, shallowly furrowed bark. Leaves are obovate or oblong-obovate, simple, alternate, pinnately 3-5 lobed with rounded lobes, pinnately veined, glabrous at maturity, pale beneath, margins entire, no bristle tips present. 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 saucer-shaped, pubescent inside; the nut is ovoid. The acorns mature and sprout at the end of the first season.
Campus data: Abundant everywhere in the wild, not cultivated. Mature trees are usually very large. The record largest tree on campus by DBH is a Q. alba. See Statistics.