| Texas Red Oak, Spanish Oak, Spotted Oak, Red Oak, Rock Oak|
Quercus buckleyi (Q. texana)
Texas Red Oak is a medium to small tree with spreading branches, sometimes (rarely) growing over 75 feet, but usually 30 to 50 feet. It is found on alkaline limestone and neutral to slightly acid gravels and sands of north central and central Texas west to the Pecos River. Along the White Rock Escarpment through Dallas to San Antonio there are hybrids of Texas Red Oak and Shumard Red Oak, Q. shumardii; the pure Texas Red Oaks exist to the west. Texas Red Oak is smaller, more often multi-trunked, and more drought tolerant than Shumard Red Oak. The foliage turns bright shades of vivid red and orange in autumn. The bark is dark gray to black with platelike scales, although sometimes it is light gray and smooth.
Plant Habit or Use: medium tree
Flower Color: reddish-brown, catkins 1 to 3 1/2 in. long
Blooming Period: spring
Fruit Characteristics: acorns, reddish-brown
Height: to 75 ft.
Width: to 60 ft.
Plant Character: deciduous
Heat Tolerance: high
Water Requirements: low
Soil Requirements: alkaline adaptable
Additional Comments: There is a close relationship between Texas Red Oak and Shumard Oak. This has caused many botanical classification problems. The two trees may be listed as two separate species in some manuals, while some list Texas Red Oak as a variety of Shumard Oak.