Red Oak

Quercus rubra · Fagaceae (Beech and Oak family)

AI-generated identification · may be incorrect
Red Oak

Leaf Morphology

Leaf Type

Simple, deciduous

Shape

Lobed (pinnately lobed with 7 to 11 bristle-tipped lobes)

Margin

Lobed with bristle-tipped teeth along the margins

Arrangement

Alternate

Venation

Pinnate with a prominent central midrib and lateral veins extending into the lobes

Key Features

Alternate simple leaves with 7-11 bristle-tipped lobes, deep U-shaped sinuses between lobes, dull brownish-red autumn color, and acorns featuring a flat, saucer-like cap.

Description

A classic North American hardwood tree, the Northern Red Oak is a large, majestic canopy tree known for its rapid growth and strong timber. It features dark, furrowed bark with smooth grayish strips in the upper ridges, inconspicuous catkin flowers in spring, and distinct oval acorns that mature in their second year.

Habitat

Found primarily in deciduous forests, on well-draining upland soils, slopes, and along stream banks. Prefers acidic, loamy, or sandy soils with moderate moisture and full sun to partial shade.

Native Range

Native to eastern and central North America, ranging from Nova Scotia west to Minnesota, and south to Georgia and Oklahoma. Widely planted as a shade tree in temperate regions worldwide.

Identified on 10/14/2026