Ulmus americana 'Klehmii'
Encyclopedia
The American Elm
American Elm
Ulmus americana, generally known as the American Elm or, less commonly, as the White Elm or Water Elm, is a species native to eastern North America, occurring from Nova Scotia west to Alberta and Montana, and south to Florida and central Texas. The American elm is an extremely hardy tree that can...

 Ulmus americana cultivar 'Klehmii' was cloned from a tree growing at Arlington Heights
Arlington Heights
Arlington Heights can refer to a place in the United States:Towns or cities*Arlington Heights, Illinois*Arlington Heights, Massachusetts*Arlington Heights, Ohio*Arlington Heights, Pennsylvania*Arlington Heights, WashingtonNeighborhoods...

 by Mr Charles Klehm, proprietor of the Charles Klehm & Son nursery .

Cultivation

The tree was first marketed by the Naperville Nurseries http://www.napersettlement.org/history/naperville_nurseries.htm, Naperville
Naperville, Illinois
Naperville is a city in DuPage and Will Counties in Illinois in the United States, voted the second best place to live in the United States by Money Magazine in 2006. As of the 2010 census, the city had a total population of 141,853. It is the fifth largest city in the state, behind Chicago,...

, Illinois
Illinois
Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

, in 1929. It is not known whether the tree remains in cultivation.
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