American Elm

Ulmus americana · Ulmaceae (Elm family)

AI-generated identification · may be incorrect
American Elm

Leaf Morphology

Leaf Type

Pinnately compound-looking twig with simple, alternate leaves, deciduous

Shape

Elliptic to obovate with an asymmetrical (unequal) base and an acuminate tip

Margin

Doubly serrate (coarsely toothed with smaller teeth along the main teeth)

Arrangement

Alternate along the twig, often appearing in a flat, two-ranked plane

Venation

Pinnate with very straight, prominent parallel side veins extending directly to the marginal teeth

Key Features

Asymmetrical leaf base where one side of the blade meets the petiole lower than the other, prominent straight parallel veins, doubly serrate margins, and rough texture

Description

The American Elm is a majestic deciduous tree renowned for its graceful, vase-like crown and arching branches. It features dark grey, deeply furrowed bark and papery leaves that turn a brilliant golden yellow in autumn before dropping.

Habitat

Rich bottomland forests, floodplains, along streams, and moist uplands with well-drained soils

Native Range

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

Identified on 10/9/2026