Quercus sinuata var. sinuata

Quercus sinuata var. sinuata, commonly called Durand oak, is a variety of Quercus sinuata, a species of oak tree that grows in parts of the southern United States and northeastern Mexico. The common name Durand white oak most often refers to this taxon. The less specific common name bastard oak may refer to either of the two varieties of Quercus sinuata, var. sinuata and var. breviloba. Other common names include bastard white oak and bluff oak, but these names more often refer to Quercus austrina. For clear differentiation in common reference, American Forests uses bluff oak to mean Quercus Austrina, Durand oak to mean Quercus sinuata var. sinuata and Bigelow oak to mean Quercus sinuata var. breviloba, a shrubby variety of Quercus sinuata distinguished in part from var. sinuata by its habit of forming clonal colonies in parts of its range....read more on Wikipedia.