White Ash (American Ash)

Fraxinus americana · Oleaceae (Olive family)

AI-generated identification · may be incorrect
White Ash (American Ash)

Leaf Morphology

Leaf Type

Pinnately compound, deciduous

Shape

Lanceolate to ovate leaflets with tapered tips

Margin

Finely serrate to entire

Arrangement

Opposite

Venation

Pinnate with a prominent central midrib and branching lateral veins

Key Features

Opposite leaf arrangement, pinnately compound leaves with stalked leaflets, distinctive diamond-patterned bark on mature trees, and U-shaped leaf scars

Description

The White Ash is a large, majestic deciduous tree known for its strong, shock-resistant wood and stunning purple-to-maroon autumn foliage. The leaves are pinnately compound with typically 5 to 9 stalked leaflets arranged in opposite pairs along the rachis.

Habitat

Rich, moist, well-draining soils in deciduous forests, along streams, and upland slopes

Native Range

Native to eastern and central North America from Nova Scotia west to Minnesota, and south to Florida and Texas

Identified on 10/12/2026