Ulmus Americana 'Klehmii'
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The
American Elm ''Ulmus americana'', generally known as the American elm or, less commonly, as the white elm or water elm, is a species of elm native to eastern North America. The trees can live for several hundred years. It is a very hardy species that can ...
cultivar A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root a ...
''Ulmus americana'' 'Klehmii' was
cloned Cloning is the process of producing individual organisms with identical genomes, either by natural or artificial means. In nature, some organisms produce clones through asexual reproduction; this reproduction of an organism by itself without ...
from a tree growing at Arlington Heights by Mr Charles Klehm, proprietor of the Charles Klehm & Son nursery. As it is unlikely that Klehms would have released two different vase-shaped American white elm cultivars at the same date (1926), and as nurseries introducing Klehms' 'Vase Elm' always introduced its stablemate 'Moline' at the same time, it is probable that Naperville's 'Klehmii' was the same clone as Klehms' 'Vase'.


Description

'Klehmii' was distinguished by its shapely vase form.


Cultivation

'Klehmii' was marketed from 1929 by the Naperville Nurseries,
Naperville Naperville ( ) is a city in DuPage and Will counties in the U.S. state of Illinois. It is a southwestern suburb of Chicago located west of the city on the DuPage River. As of the 2020 census, its population was 149,540, making it the state's ...
,
Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...
.napersettlement.org
/ref> It is not known whether it remains in cultivation.


Synonymy

*''Ulmus americana'' 'Klehm': ''Plant Buyer's Guide'', ed. 5, 253, 1949.


References

{{Elm species, varieties, hybrids, hybrid cultivars and species cultivars , state=collapsed American elm cultivar Ulmus articles missing images Ulmus