The american elm is apart of the well you guessed it the elm family but in the botanic words it is apart of the Ulmaceae family.It is native to North America and can span over 40 ft it can grow relatively quickly. It also a deciduous tree meaning it changes color with the seasons.
You can learn more about this tree at Mortonarb.org
Fun Fact: it was a very popular tree in booming cities of the 19th century, so that by the 20th century many streets were lined with only elms.