The American elm, whose botanical name is ulmus americana, is a species of elm native to eastern North America.
It is a deciduous dioecious tree that grows to a height of more than 30 meters and a trunk diameter of 1.2 meters, forming an umbrella-like canopy.
The leaves are alternate, 7-20 cm long, with double serrated edges and a sloping base.
During the 19th and early 20th centuries, its rapid growth and graceful form made it a popular urban street and garden tree.
Ref: