American Basswood

Tilia americana · Malvaceae (Mallow family, formerly classified under Tiliaceae)

AI-generated identification · may be incorrect
American Basswood

Leaf Morphology

Leaf Type

Simple, deciduous leaf

Shape

Cordate (heart-shaped) to ovate with a notably asymmetrical (oblique) base

Margin

Serrate (coarsely toothed) with sharp, pointed teeth along the edge

Arrangement

Alternate on the twig, attached via a slender petiole

Venation

Pinnate and palmate blend, with strong primary veins radiating somewhat from the asymmetrical base and prominent reticulate net-like secondary veins

Key Features

Deeply heart-shaped leaves with a heavily asymmetrical (skewed) leaf base, coarsely toothed margins, and dangling clusters of flowers or seeds attached to a leafy, pale bract (bract-like peduncle)

Description

The American Basswood is a large, majestic deciduous tree known for its straight trunk, soft and lightweight wood, and fragrant drooping clusters of yellowish-white flowers. In autumn, the foliage turns an unassuming dull yellow-green before dropping. The tree is a favorite among urban planners and nature lovers alike for its dense shade and appealing form.

Habitat

Rich, moist, well-drained soils of deciduous forests, often found along streams, ravines, and lower slopes. Prefers partial to full sun and is moderately shade-tolerant when young.

Native Range

Native to eastern and central North America, ranging from Nova Scotia west to southeastern Manitoba, south to northeast Texas, and east to Georgia

Identified on 10/12/2026
American Basswood | Leaf Identifier