The Willow Oak is a subset member (with lobeless leaves) of the red oak group. It is not a willow. The tree is medium height (70 feet) with a bole diameter over two feet. The trunk is dark with shallow grooves. Leaves are four inches long and very narrow with a bristled tip. They are shiny on top and gray hairy underneath. The acorns are less than a half-inch across with shallow saucer shaped caps. Twigs are hairless and have short pointy hairless buds.

The growing region is only Texas to Viginia. Oak is a hardwood providing a major portion of the annual lumber in the United States. Oak trees are generally slow-growing and long-lived and tend to be relatively resistant to diseases and insects. Tannin is a major produce from oak bark.