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  Guide to the Common Trees of Pennsylvania

Trees | Glossary | Visual Guide | Leaf Parts, Types, & Position

American Elm
(Wide & Flat: Alternate Arrangement)
A large and highly prized shade tree. The drooping crown often gives it a vase-shaped appearance. Found locally throughout Pennsylvania, mainly on moist areas. The hard, tough wood has many uses, including the manufacture of boxes, barrels and furniture.

American Elm
Ulmus americana L
enlarge

Leaves
Alternate, simple, 4"-6" long, unequal at the base, rather rough on the upper surface; usually soft-hairy below; veins prominent; margin coarsely toothed. Petiole short.
Twigs
Slender, zigzag, brown, or slightly hairy. Leaf buds 1/8"- 1/4" long, flattened. Flower buds larger, below leaf buds. Bud scales red-brown, smooth or downy; margins dark.
Fruit
A seed surrounded by an oval, thin papery wing, 1/2" long, deeply notched at the tip; ripening in spring and borne in clusters; wing with scattered hairs along margin. Flowers and fruit appear before the leaves, as is true of Slippery elm.
Bark
Dark gray to gray-brown with long corky ridges; separated by diamond-shaped fissures on older trees.

Select a Tree from a menu below, or download the Visual Guide

Needle-Shaped or Linear

  

Wide & Flat: Opposite Arrangement

Wide and Flat: Alternate Arrangement

Information courtesy of:
PA Department of Conservation & Natural Resources
 
 

Whitetailed Deer
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