Quercus × sternbergii Lübbert ex Lamant & Coombes

Tree to about 20 m tall, usually less and sometimes multistemmed. Bark smooth and greyish when young, cracking with age into irregular quadrangular plates delimited by fissures. Young shoots glabrous early in the growing season, brown to yellowish brown, glossy. Leaves deciduous, glossy green and glabrous above, dull green below with tufts of red hairs in the vein axils, 4–12 cm long × 4.1–10.5 cm wide; apex acute, often 3-lobed, base narrowly to broadly cuneate to almost truncate and sometimes asymmetrical; lobes 5–7, variable in width and often forked at the tip, with 20–30 aristate tips; sinuses fairly deep, more than ⅔ of the distance from the tip of the lobe to the midrib, which is slightly impressed on the adaxial surface; midrib and secondary veins raised on the abaxial surface. Fruits biennial, borne singly or in pairs; peduncle 0.2–0.4 cm long Cupule 0.3–0.8 cm high and 1–1.7 cm wide, with reddish brown, finely pubescent and closely appressed scales. Nut ovoid or globose, 1.2–2.3 cm long × 0.9–1.6 cm wide, slightly pubescent before maturity. (Coombes & Lamant 2023).

Distribution  United States Texas

Habitat Woodland on prairie edges.

USDA Hardiness Zone 7

RHS Hardiness Rating H4

Conservation status Not evaluated (NE)