Pin Oak

Quercus palustris · Fagaceae (Beech and Oak family)

AI-generated identification · may be incorrect
Pin Oak

Leaf Morphology

Leaf Type

Simple, deciduous leaf

Shape

Lobed with 5 to 7 deep lobes that have bristly-tipped teeth; sinuses extend deeply toward the midrib

Margin

Lobed and serrate with bristle-tipped teeth

Arrangement

Alternate

Venation

Pinnate venation with a prominent central midrib and branching secondary veins

Key Features

Deeply cut sinuses that reach more than halfway to the midrib, bristle-tipped leaf lobes, and the characteristic drooping lower branches of the parent tree

Description

Quercus palustris, commonly known as the pin oak, is a medium-sized deciduous tree renowned for its distinctive branch habit: upper branches grow upward, middle branches grow horizontally, and lower branches droop downward. It features dark brown bark that becomes furrowed with age, small acorns with saucer-like caps, and deeply lobed leaves that turn brilliant bronze and red in autumn.

Habitat

Found primarily on moist, rich bottomland soils, poorly drained floodplains, and around the borders of swamps and streams

Native Range

Native to eastern and central North America, from New England west to Ontario and Kansas, and south to Arkansas and North Carolina

Identified on 10/13/2026