The Texana Nuttall Oak tree, Quercus texana, also known as Spanish oak, Nuttall's oak, Texas red oak, Spotted Oak, Rock oak, and red river oak, is a large deciduous native tree of the red oak group. The Texana Nuttail tree has a wide-spreading, rounded crown. Fruits are oval acorns (to 1 1/2" long) with scaly cups. Dark green leaves (4-8" long) are deeply divided into 5-7 spiny, pointed lobes. Leaf shape is reminiscent of the closely related pin oaks and schumard oaks.
Fall color comes late, but often includes quality shades of red. Species name is in reference to the state of Texas where this oak was apparently first identified. Gray-brown bark, initially thin and smooth, later developes narrow scaly ridges. The acorn matures in two seasons. The wood is used as red oak lumber. The acorns are eaten by water fowl and many small mammals.