Quercus brantii, the Brant's oak, is a species of oak native to Western Asia, including Iran, Iraq, Syria, and Turkey.
Quercus brantii (covering more than 50% of the Zagros Mountains forest steppe ecoregion) is the most important tree species of the Zagros in Iran.
Iranians use its seed in traditional medicine. Other useful products derived from oaks include fuel wood, charcoal and timber hardwood.
Shrub or tree to 10 m, 0.8 m dbh. Bark greyish brown, rather smooth, becoming deeply furrowed and forming heavy ridges. Crown rounded. Branchlets covered in yellowish brown or grey tomentum. Leaves deciduous, 6–10(–15) × 3–7(–9) cm, ovate to oblong, upper surface dull green with sparse stellate hairs or glabrous, lower surface with dense pale yellowish grey stellate hairs, 6–16 secondary veins on each side of the midrib, margins regularly serrate with 8–14 teeth on each side of the midrib, apex acute; petiole 0.5–2 cm long. Infructescence to 15 cm long with one or two cupules.
Cupule hemispheric, 3–4 × 2–3 cm, outside densely pubescent; lower scales rather short and blunt, apical scales with elongated apices that curl into and away from the acorn. Acorn elliptic, with one-third to half of its length enclosed in the cupule, to 1.8–5 cm long, stylopodium short.