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Ulmus Pumila Var. Arborea
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.Dieck, G. (1894). ''Neuheiten-Offerten des National-Arboretums zu Zöschen bei Merseburg, 1894/95.''Hansen, N. How to produce that $1000 premium apple, in Minnesota State Hort. Soc. (1900). ''Trees, fruits & flowers of Minnesota''. Vol. 28. 470–1. Forgotten Books, London, 2013. Litvinov (1908) treated it as a variety of Siberian elm, ''U. pumila'' var. ''arborea'' U. pumila L. var. arborea Litwinow, in ''Schedae ad Herbarium Florae Rossicae'' No. 1992, &: 460 (1908) but this taxon was ultimately rejected by Green, who sank the tree as a cultivar: "in modern terms, it does not warrant recognition at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus Pumila
''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. Description The Siberian elm is usually a small to medium-sized, often bushy, deciduous tree growing to tall, the diameter at breast height to . The bark is dark gray, irregularly longitudinally fissured. The branchlets are yellowish gray, glabrous or pubescent, unwinged and without a corky layer, with scattered lenticels. The winter buds dark brown to red-brown, globose to ovoid. The petiole is , pubescent, the leaf blade elliptic-ovate to elliptic-lanceolate, , the colour changing from dark green to yellow in autumn.Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) ''Flora of China ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
