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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.
The Siberian elm cultivar Ulmus pumila 'Hansen' is a little-known American tree of obscure origin, possibly raised from seed collected by the horticulturist and botanist Prof. Niels Hansen during his expedition to Siberia in 1897.
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 ]
A young Siberian elm with rough bark and leaves smaller than those of 'Pinnato-ramosa', that remain light green all summer, stands near the entrance to Rocheid Path at the northern end of Arboretum Avenue, Edinburgh (2018). Though planted c.1980, the tree does not yet produce fruit (2021).
The Siberian Elm cultivar Ulmus pumila 'Harbin' is an older Manchurian selection, [1] grown from seed collected from an area with a similar climate to that of the Great Plains, [2] and superseded in the United States by 'Dropmore'.
The Siberian elm cultivar Ulmus pumila 'Dropmore' was grown from seed collected in Harbin, Manchuria, China, by F. L. Skinner, of Dropmore, Manitoba. [1] Green reported (1964) a suggestion to merge the Siberian elm cultivars 'Harbin' and 'Manchu' with 'Dropmore', as all came from the Harbin area. [ 2 ]
A notably pendulous small-leaved elm in the JC Raulston Arboretum, Raleigh, North Carolina (2019), labelled Ulmus minor subsp. minor 'Pendula', 'Weeping small-leaved elm', has U. pumila-type fruit and is indistinguishable in leaf and form from U. pumila 'Dwarf Weeper'. The arboretum acquired other specimen trees from Arborvillage Nursery, Holt ...
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.