Quercus prinus, white oak, oak tree, oak is a species endemic to the eastern United States, one of the most important trees in southern Maine, south-central Mississippi, with a population in the northwest corner Southern Michigan. As a result of habitat and exposure is not usually a large tree, typically 20-30 m tall, occasionally in a better position may reach 40-43 m in height. They are not the best timber trees because their branches low and not very straight, but growing in good conditions, they are valuable for timber that is marketed as white oak mix. "
Is identified by its dark gray bark, and the thickest of all species of oaks in eastern North America. The leaves are 12-20 cm long and 6-10 cm broad, shallowly lobed with 10-15 rounded lobes on each margin, are virtually identical to those of Quercus michauxii and chinkapin oak, but the trees are distinguished by the bark , of the Swamp have a light ash gray, scaly as Quercus alba L. and Quercus michauxii Nutt., being paler. The chinkapin oak also has much smaller acorns than the American white oak, this is easily distinguished from Quercus bicolor Willd. because it has whitened undersides of leaves.
Much confusion occurs with Quercus michauxii, some botanists have considered the same species in the past. The way to distinguish is by habitat, if it grows on hillsides, is prinus, doing so in wet, probably the most massive Swamp, but this is not fully reliable.
The acorns are 1.5-3 cm long and 1-2 cm wide, the largest native American oaks, surpassed only by Quercus macrocarpa Michx., And possibly Swamp, and is a valuable wildlife food.
The name Quercus prinus, Linnaeus gave it, but the original specimen contained a mixture of leaves of this and other species, and Quercus prinus is considered a confusing name to be rejected. The next oldest name Quercus montana Willdenow gives it, is recommended for the species of the Flora of North America.