Pin Oak

Quercus palustris · Fagaceae (Beech and Oak family)

AI-generated identification · may be incorrect
Pin Oak

Leaf Morphology

Leaf Type

Simple, deciduous

Shape

Deeply lobed with 5 to 7 lobes, deeply cut sinuses extending almost to the midrib, wedge-shaped base

Margin

Lobed with bristle-tipped teeth on the lobes

Arrangement

Alternate

Venation

Pinnate with a prominent yellowish midrib and primary veins

Key Features

Deeply cut sinuses that reach almost to the midrib, bristle-tipped leaf lobes, lower drooping branches, and persistent dead branches along the lower trunk

Description

The Pin Oak is a medium to large deciduous tree known for its distinctive growth habit, featuring upper branches that grow upward, middle branches that grow horizontally, and lower branches that droop downward toward the ground. The leaves are deeply incised with sharp, bristle-tipped lobes, creating a very characteristic silhouette.

Habitat

Found naturally in wet, poorly drained soils, floodplains, and along streams, preferring acidic soils and full sun exposure

Native Range

Native to eastern and central North America, ranging from New England west to Ontario and Kansas, and south to Arkansas and North Carolina; widely planted as an urban street tree

Identified on 10/13/2026