The

Siberian elm ''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, Nor ...

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture ...

''Ulmus pumila'' 'Hansen' is a little-known American tree of obscure origin, possibly raised from seed collected by the

horticulturist Horticulture is the branch of agriculture that deals with the art, science, technology, and business of plant cultivation. It includes the cultivation of fruits, vegetables, nuts, seeds, herbs, sprouts, mushrooms, algae, flowers, seaweeds and no ...

and botanist Prof. Niels Hansen during his expedition to

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive region, geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a ...

in 1897.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.

Description

Very similar to the species. A specimen planted in 1978 at the Sir Harold Hillier Gardens in England had attained a height of 8 m by 2002. Image:RN Ulmus pumila Hansen leaves.jpg, Leaves of 'Hansen' File:Ulmus pumila 'Hansen'.jpg, 'Hansen' at Hillier Arboretum

Cultivation

The tree's current status in North America is not known; at least three mature specimens survive in the UK. Significantly, it is not listed in Green's digest of elm cultivar names published in 1964, suggesting a rather belated introduction to commerce.

Pests and diseases

See under ''

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, No ...

''.

Synonymy

*?'Hansen's Hybrid': Jewell Nursery (ceased trading 2001), Lake City,

Minnesota Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota is home to western prairies, now given over to ...

, United States. Wholesale Price List, Fall, 1968 - Spring 1969, p 6, described as "with larger leaf than Chinese (Elm)", but without provenance details.

Accessions

Europe

Brighton & Hove Brighton and Hove () is a city and unitary authority in East Sussex, England. It consists primarily of the settlements of Brighton and Hove, alongside neighbouring villages. Often referred to synonymously as Brighton, the City of Brighton and ...

City Council, UK,

NCCPG Plant Heritage, formerly known as the National Council for the Conservation of Plants and Gardens (NCCPG), is a botanical conservation organisation in the United Kingdom and a registered charity. It was founded in 1978 to combine the talents of b ...

Elm Collection. * Sir Harold Hillier Gardens, UK. Acc. no. 1978.1606 *

Winkworth Arboretum Winkworth Arboretum is a National Trust-owned arboretum in the spread-out civil parish of Busbridge between Godalming and Hascombe, south-west Surrey, England. The arboretum was founded by Dr Wilfrid Fox, starting in 1938 and continuing th ...

, Surrey, UK. Tree planted 1975, plot K 37.

References

{{DEFAULTSORT:Ulmus pumila 'Hansen' Siberian elm cultivar Ulmus articles with images