Leaves are simple, alternate and deciduous with 5-9 rounded lobes, lobes at the apex forming a fan shape, center sinuses that cut almost to the midrib, and a hairy underside.
Twigs are brown-gray, stout and sometimes with corky wings.
Bark is similar to white oak but darker and more ridged on larger trees. The acorn matures in one season. Bur oak is found in the northeast and central US and in isolated populations in Alabama. Click on photo to enlarge. All text and photographs are intended for educational purposes only and are not for commercial use in any form.