Leaf Morphology
Leaf Type
Simple, deciduous
Shape
Elliptical to ovate with an asymmetrical (unequal) base
Margin
Doubly serrate (coarsely toothed with smaller teeth on the larger teeth)
Arrangement
Alternate
Venation
Pinnate, with straight, parallel veins extending directly from the prominent central midrib to the margin.
Key Features
The most distinguishing identification features of the American Elm leaf are its strongly asymmetrical base and its doubly serrate margin, coupled with straight, parallel pinnate veins.
Description
The American Elm is a majestic deciduous tree known for its grand, vase-shaped canopy and sweeping branches. The leaves are sharply toothed, featuring a distinctly asymmetrical base where one side of the leaf blade meets the petiole lower than the other. In autumn, the foliage turns a bright, clear yellow.
Habitat
Typically found in rich, moist bottomland soils, floodplains, along streams, and in mixed hardwood forests.
Native Range
Native to eastern North America, stretching from Nova Scotia west to Alberta, and south to Florida and central Texas.