Ulmus glaucescens var. lasiocarpa
Encyclopedia
Ulmus glaucescens var. lasiocarpa Rehder, named the Hairy-fruited Glaucescent Elm in the USA, is found along rivers and mountain slopes at elevations between 2500 m - 2600 m in the provinces of Hebei
Hebei
' is a province of the People's Republic of China in the North China region. Its one-character abbreviation is "" , named after Ji Province, a Han Dynasty province that included what is now southern Hebei...

, Henan
Henan
Henan , is a province of the People's Republic of China, located in the central part of the country. Its one-character abbreviation is "豫" , named after Yuzhou , a Han Dynasty state that included parts of Henan...

, Liaoning
Liaoning
' is a province of the People's Republic of China, located in the northeast of the country. Its one-character abbreviation is "辽" , a name taken from the Liao River that flows through the province. "Níng" means "peace"...

, Nei Mongol, Ningxia
Ningxia
Ningxia, formerly transliterated as Ningsia, is an autonomous region of the People's Republic of China. Located in Northwest China, on the Loess Plateau, the Yellow River flows through this vast area of land. The Great Wall of China runs along its northeastern boundary...

, eastern Qinghai
Qinghai
Qinghai ; Oirat Mongolian: ; ; Salar:) is a province of the People's Republic of China, named after Qinghai Lake...

, and Shanxi
Shanxi
' is a province in Northern China. Its one-character abbreviation is "晋" , after the state of Jin that existed here during the Spring and Autumn Period....

.

Description

The variety is distinguished by a "samara densely pubescent when young, with scattered hairs when mature. Fl. and fr. March - May.".

Pests and diseases

The tree was heavily damaged by the Elm Leaf Beetle Xanthogaleruca luteola
Xanthogaleruca luteola
Xanthogaleruca luteola, commonly known as the Elm Leaf Beetle, is a serious pest of the elm. Indigenous to Europe, it was accidentally introduced to North America. Both the imagines and larvae feed on the emergent leaves of the elm...

in trials in Oklahoma
Oklahoma
Oklahoma is a state located in the South Central region of the United States of America. With an estimated 3,751,351 residents as of the 2010 census and a land area of 68,667 square miles , Oklahoma is the 28th most populous and 20th-largest state...

  http://www.sunshinenursery.com/survey.htm.

North America

  • Morton Arboretum
    Morton Arboretum
    The Morton Arboretum, in Lisle, Illinois, covers 1,700 acres and is made up of gardens of various plant types and collections of trees from specific taxonomical and geographical areas. It includes native woodlands and a restored Illinois prairie. The Arboretum has over 4,100 different species of...

    , Illinois
    Illinois
    Illinois is the fifth-most populous state of the United States of America, and is often noted for being a microcosm of the entire country. With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal,...

    . Acc. no. 537-76: two trees raised from seed sent by the Beijing Botanical Garden
    Beijing Botanical Garden
    The Beijing Botanical Garden is a botanical garden situated in the northwestern outskirts of Beijing, China between Xiangshan Park and Jade Spring Mountain in the Western Hills.-History:...

    , one in the China garden, central section, another along the Du Page River.
  • U S National Arboretum
    United States National Arboretum
    The United States National Arboretum is an arboretum in Washington, D.C., operated by the United States Department of Agriculture's Agricultural Research Service as a division of the Henry A. Wallace Beltsville Agricultural Research Center...

     http://www.usna.usda.gov/index.htm, Washington, D.C.
    Washington, D.C.
    Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

    , USA. Acc. no. 76255.

Europe

  • Grange Farm Arboretum
    Grange Farm Arboretum
    The Grange Farm Arboretum is a small private arboretum comprising 3 hectares accommodating over 800 trees, mostly native and ornamental species or cultivars, notably oaks, ashes, walnuts and elms, growing on a calcareous loam....

    , Sutton St James
    Sutton St James
    Sutton St James is a village and civil parish in the South Holland district of Lincolnshire, England, about south west of Long Sutton.Lying in the Lincolnshire Fens, Sutton St James did not exist at the time of Domesday Book of 1086...

    , Spalding
    Spalding, Lincolnshire
    Spalding is a market town with a population of 30,000 on the River Welland in the South Holland district of Lincolnshire, England. Little London is a hamlet directly south of Spalding on the B1172 road....

    , Lincolnshire
    Lincolnshire
    Lincolnshire is a county in the east of England. It borders Norfolk to the south east, Cambridgeshire to the south, Rutland to the south west, Leicestershire and Nottinghamshire to the west, South Yorkshire to the north west, and the East Riding of Yorkshire to the north. It also borders...

    , UK. Grafted tree. Acc. no. 700.

Australasia

  • Mount Lofty Botanic Garden
    Mount Lofty Botanic Garden
    First opened in 1977, the crescent-shaped Mount Lofty Botanic Garden is situated on 97 hectares on the eastern slopes of Mount Lofty in the Adelaide Hills east of Adelaide in South Australia. The cooler, wetter location suits plants from temperate climates which are difficult to grow on the...

    , Piccadilly
    Piccadilly, South Australia
    Piccadilly is a small town in the Adelaide Hills of South Australia, Australia. At the 2006 census, Piccadilly had a population of 509.The Piccadilly Valley was for many decades a market gardening centre which produced food for the Adelaide and overseas market...

    , South Australia
    South Australia
    South Australia is a state of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories.South Australia shares borders with all of the mainland...

    . One tree, raised from seed sent by the Beijing Botanical Garden, planted out c. 1984, and 4.5 m high with a d.b.h. of 13 cm in 2008.
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