Leaf Morphology
Leaf Type
Simple, deciduous leaf
Shape
Oblanceolate to elliptical with an asymmetrical (unequal) leaf base
Margin
Doubly serrate (coarsely toothed with smaller teeth along the primary teeth)
Arrangement
Alternate arrangement along the twig with a very short petiole
Venation
Pinnate venation with straight, parallel veins running prominently from the central midrib to the margin
Key Features
Unequal or asymmetrical leaf base, doubly serrate margins, straight parallel veins, and a distinctly rough upper leaf surface
Description
The American Elm is a majestic, large deciduous tree famously recognized by its elegant vase-shaped canopy and spreading branches. The bark is dark gray and deeply furrowed with intersecting diamond-shaped ridges. Leaves are notably asymmetric at the base, featuring sharp double teeth and prominent straight parallel veins.
Habitat
Rich bottomland forests, floodplains, along streams, and moist uplands with deep, fertile soils
Native Range
Native to eastern North America, ranging from Nova Scotia west to Alberta, and south to Florida and Texas