American Sycamore

Platanus occidentalis · Platanaceae (Plane-tree family)

AI-generated identification · may be incorrect
American Sycamore

Leaf Morphology

Leaf Type

Simple, deciduous leaf

Shape

Palmate-lobed leaf typically featuring 3 to 5 distinct, pointed lobes with shallow sinuses

Margin

Coarsely toothed or serrate with prominent pointed teeth along the margins of the lobes

Arrangement

Alternate arrangement along the twigs

Venation

Palmate venation with several primary veins radiating outwards from the base of the leaf blade

Key Features

Distinctive exfoliating bark revealing smooth white inner bark on upper branches, large palmate-lobed leaves with toothed margins, and dangling round fruit balls (achenes)

Description

The American Sycamore is one of the most massive hardwood trees in North America, easily recognized by its distinctive mottled exfoliating bark that peels off in camouflage-like patches of white, gray, and brown. It produces spherical fruit clusters known as buttonballs that persist through winter, and broad, maple-like leaves that turn a warm brown in autumn.

Habitat

Typically found along streambanks, river floodplains, lake shores, and in moist bottomland soils with full sun exposure

Native Range

Native to eastern and central North America, stretching from southern Ontario down to Florida and west to the Great Plains

Identified on 10/5/2026
American Sycamore | Leaf Identifier