Trees of Alabama and the Southeast

Lisa Samuelson, Ph.D.
School of Forestry and Wildlife Sciences
Auburn University

BLUEJACK OAK
Quercus incana
Fagaceae

Leaves are simple, alternate, deciduous, unlobed and linear with prominent blue-white hair underneath and a bristle-tipped apex. On seedlings and saplings, leaves may be lobed like water oak. Twigs are gray and pubescent. Bark is gray-black, rough and blocky. Fruit is an acorn 1/2 inches long, with a finely pubescent and striped nut, and cap covering up to 1/2 of the nut. The acorn matures in two seasons. Form is a small tree up to 9 m (30 ft) tall, found on sandy sites in the southeastern Coastal Plain and is intolerant of shade. The wood is used as red oak lumber and for fuel. Acorns eaten by game birds, deer, and many small mammals.

Photographs by Mike Hogan.

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