Red Oak (Northern Red Oak)

Quercus rubra · Fagaceae (Beech and Oak family)

AI-generated identification · may be incorrect
Red Oak (Northern Red Oak)

Leaf Morphology

Leaf Type

Simple, deciduous leaf

Shape

Lobed leaf with typically 7-11 lobes ending in bristle-tipped points

Margin

Serrate with bristle-tipped lobes and deep sinuses

Arrangement

Alternate arrangement along the twig

Venation

Pinnate venation with a prominent central midrib and primary veins extending out into each lobe.

Key Features

Bristle-tipped leaf lobes, shallow to moderately deep sinuses, dull dark green upper surface, and bark with smooth, shiny strips in the furrows of mature trunks.

Description

The Northern Red Oak is a majestic, fast-growing deciduous tree known for its impressive size, straight trunk, and rounded crown. Its bark is dark gray or brown with broad, flat-topped ridges. In spring, it produces inconspicuous catkins, followed in autumn by large, oblong acorns with a flat, saucer-like cap. The foliage transforms into a striking deep red color before dropping for the winter.

Habitat

Thrives in rich, moist, well-draining soils of deciduous forests, often found along slopes, ridges, and valleys. Prefers full sun to partial shade.

Native Range

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

Identified on 10/7/2026
Red Oak (Northern Red Oak) | Leaf Identifier