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  2. Ulmus americana - Wikipedia

    en.wikipedia.org/wiki/Ulmus_americana

    Ulmus americana, generally known as the American elm or, less commonly, as the white elm or water elm, [a] 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 withstand low winter temperatures, but it is affected by Dutch elm disease.

  3. Ulmus americana 'Moline' - Wikipedia

    en.wikipedia.org/wiki/Ulmus_americana_'Moline'

    The American Elm cultivar Ulmus americana 'Moline' was cloned from a wild seedling transplanted to Moline, Illinois, from nearby Rock River Valley in 1903 and propagated from 1916 by the Klehm Nurseries, Arlington Heights, Illinois. [1] [2] [3]

  4. Ulmus americana 'Jefferson' - Wikipedia

    en.wikipedia.org/wiki/Ulmus_americana_'Jefferson'

    The American Elm cultivar Ulmus americana 'Jefferson' was cloned from a tree growing near a path in front of the Freer Gallery of Art, close to the Smithsonian Institution Building ("The Castle") on the National Mall in Washington, D.C. [1] The United States National Park Service, which had planted the tree during the 1930s, cloned it in 1993 after screening tests showed that it possessed an ...

  5. Ulmus serotina - Wikipedia

    en.wikipedia.org/wiki/Ulmus_serotina

    Ulmus serotina, the September elm, is an autumn-flowering North American species of tree. It is uncommon beyond Tennessee ; it is only very locally distributed through Illinois , Kentucky , Arkansas , Mississippi , Oklahoma , Alabama , and Georgia , and disjunct populations into Nuevo León , Mexico. [ 2 ]

  6. Ulmus americana 'St. Croix' - Wikipedia

    en.wikipedia.org/wiki/Ulmus_americana_'St._Croix'

    The American Elm cultivar Ulmus americana 'St. Croix' is a recent (2008) selection cloned from a large tree growing on a farm near Afton, Minnesota, [1] which has displayed a high resistance to Dutch elm disease (DED). [2] A U S patent, PP 20097, was granted in 2009.

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  8. Ulmus americana 'Delaware' - Wikipedia

    en.wikipedia.org/wiki/Ulmus_americana_'Delaware'

    The American Elm cultivar Ulmus americana 'Delaware' was originally selected (as tree number 218, a c.1940 seedling from North Dakota) from 35,000 seedlings inoculated with the Dutch elm disease fungus in USDA trials at Morristown, New Jersey. [1]

  9. Ulmus americana 'American Liberty' - Wikipedia

    en.wikipedia.org/wiki/Ulmus_americana_'American...

    The American elm cultivar Ulmus americana 'American Liberty' is in fact a group of six genetically distinct cultivars under a single name, although they are superficially similar. [1] The Liberty elm is reportedly suitable for street planting, being tolerant of de-icing salts and air pollution.