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The Water oak (Quercus nigra) belongs to Fagaceae (the Beech family). It is a tall evergreen tree that is native to the eastern and south-central United States. This tree grows in lowlands and up to 450 m in altitude, and can reach about 30 m in height. Young trees have a smooth, brown bark that becomes gray-black with rough scaly ridges as the tree matures. The leaves are spatulate, alternate, with smooth to shallowly lobed margins. The acorns are arranged singly or in pairs, 10-14 mm long and broad, with a shallow cupule. They mature about 18 months after pollination in fall of the second year.
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