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The Siberian Elm cultivar Ulmus pumila 'Pendula' is from northern China, where it is known as Lung chao yü shu (: Dragon's-claw elm). It was classified by Frank Meyer in Fengtai in 1908, and introduced to the United States by him from the Peking Botanical Garden as Weeping Chinese Elm. The USDA plant inventory record (1916) noted that it was a "rare variety even in China". It was confirmed as an U. pumila cultivar by Krüssmann (1962).
Late 19th-century herbarium leaf-specimens suggest that the epithet 'Pendula' has been attached to more than one form of Siberian elm.
The name 'Weeping Chinese Elm' is now sometimes used for Ulmus parvifolia 'Sempervirens', a cultivar of the true Chinese Elm.