Quercus grisea Liebm.

One of the many scrub oaks, found in the U.S. from western Texas north to southwestern Colorado and south to southern Arizona.

Leaves on the Chisos Rim, Big Bend National Park, Brewster County, Texas, 22 Mar 2006.

Plant habit on the Chisos Rim, 22 Mar 2006.

Bark on the Chisos Rim, 22 Mar 2006.