Durand White Oak observed at Palmetto State Park, near the intersection of Park Road 11 with the road leading to the Refectory.
Quercus durandii.
Longest leaf in pic is 11.5 cm. Acorn caps are very shallow.
Durand White Oak observed along northwest boundary of the new Nature Conservancy preserve called San Bernard Woods near Danciger TX. Photos courtesy of Susan Conaty.