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

Pinnately lobed with 5 to 7 deep lobes, featuring sharply toothed lobe tips

Margin

Lobed with bristly-tipped teeth

Arrangement

Alternate

Venation

Pinnate venation with a prominent central midrib and branching secondary veins

Key Features

Deeply cut sinuses extending almost to the midrib, bristly-tipped lobes, and drooping lower branches that remain on the tree for years (giving it the 'pin' oak name from the small pin-like knots left when branches drop)

Description

The Pin Oak is a medium-sized deciduous tree known for its distinctive branch habit where upper branches point upward, middle branches are horizontal, and lower branches droop toward the ground. The leaves feature deeply cut sinuses and bristle-tipped lobes, turning a rich bronze or red in autumn.

Habitat

Typically found in moist to wet bottomland soils, floodplains, and poorly drained uplands

Native Range

Native to eastern and central North America, widely planted in urban environments across temperate zones

Identified on 10/13/2026
Pin Oak | Leaf Identifier