American Elm (White Elm, Water Elm)

Ulmus americana · Ulmaceae (Elm family)

AI-generated identification · may be incorrect
American Elm (White Elm, Water Elm)

Leaf Morphology

Leaf Type

Simple, deciduous

Shape

Elliptic to ovate with an asymmetric (unequal) base

Margin

Doubly serrate (coarsely toothed with smaller teeth on the teeth)

Arrangement

Alternate along the twig

Venation

Pinnate with straight, parallel veins extending directly to the margin

Key Features

Unequal (asymmetric) leaf base where one side of the blade attaches lower on the petiole than the other, prominent doubly serrate margins, and a rough, sandpaper-like upper texture.

Description

The American Elm is a majestic, large deciduous tree known for its characteristic vase-like shape with an arching canopy. It features dark gray, deeply furrowed bark with diamond-shaped ridges. The leaves are simple, alternate, and uniquely identifiable by their heavily skewed bases. In spring, it produces small, inconspicuous greenish flowers followed by papery winged samaras.

Habitat

Typically found in rich, moist bottomland soils, floodplains, along streams, and in mixed hardwood forests. Adapts well to various soil types and urban conditions.

Native Range

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

Identified on 10/5/2026