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Ulmus pumila, the Siberian elm, is a tree native to Asia.It is also known as the Asiatic elm and dwarf elm, but sometimes miscalled the 'Chinese elm' (Ulmus parvifolia). U. pumila has been widely cultivated throughout Asia, North America, Argentina, and southern Europe, becoming naturalized in many places, notably across much of the United States.
A Siberian elm with rough bark and leaves smaller than those of 'Pinnato-ramosa', that remain light green all summer, matching those of 'Poort Bulten', stands near the entrance to Rocheid Path at the northern end of Arboretum Avenue, Edinburgh (2018). [7] Though planted c.1980, the tree does not yet produce fruit (2024).
The Siberian elm cultivar Ulmus pumila 'Hansen' is a little-known American tree, raised from seed collected by the horticulturist and botanist Prof. Niels Hansen during his expedition to eastern Siberia in 1897, and further developed in South Dakota. [1] [2] Krüssmann (1976) mistakenly listed 'Hansen' under Ulmus parvifolia. [1]
The Siberian Elm cultivar Ulmus pumila 'Pendula' is from northern China, where it is known as Lung chao yü shu (: Dragon's-claw elm). [1] It was classified by Frank Meyer in Fengtai in 1908, [ 2 ] and introduced to the United States by him from the Peking Botanical Garden [ 1 ] as Weeping Chinese Elm . [ 3 ]
The Siberian elm cultivar Ulmus pumila 'Pinnato-ramosa' was raised by Georg Dieck, as Ulmus pinnato-ramosa, at the National Arboretum, Zöschen, Germany, from seed collected for him circa 1890 in the Ili valley, Turkestan (then a region of the Russian Empire, now part of Kazakhstan) by the lawyer and amateur naturalist Vladislav E. Niedzwiecki while in exile there.
The starting-points for List of elm cultivars, hybrids and hybrid cultivars were fourfold: (1) Green's 'Registration of Cultivar Names in Ulmus ' (1964), [1] based on the contemporary nomenclature of elm species and wild hybrids; (2) Krüssmann's confirmation or correction of cultivar-names in his monumental Handbuch der Laubgehölze (1976); [2] (3) Heybroek's table of Netherlands research ...
The Siberian elm cultivar Ulmus pumila 'Green King' was once believed to have been derived from a crossing of the Siberian Elm Ulmus pumila with the American Red Elm Ulmus rubra. However, it is now apparent the tree originated as a sport of U. pumila in 1939 at the Neosho Nurseries, Neosho , Missouri .
The Siberian elm cultivar Ulmus pumila 'Chinkota' [1] was developed from seed of the cultivar 'Dropmore' by the Horticulture & Forestry Department of South Dakota State University c.1955, [2] as one of a seed-produced line of extremely cold-hardy and drought-resistant trees for use in the Great Plains. [3] [4]
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