''Ulmus chumlia'' is a small

deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, aft ...

tree endemic to the

Himalaya The Himalayas, or Himalaya (; ; ), is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has some of the planet's highest peaks, including the very highest, Mount Everest. Over 100 ...

from the

Kashmir Kashmir () is the northernmost geographical region of the Indian subcontinent. Until the mid-19th century, the term "Kashmir" denoted only the Kashmir Valley between the Great Himalayas and the Pir Panjal Range. Today, the term encompas ...

to central Nepal,Anisko, T. (2006). On the trail of the Himalayan elms. ''Plant exploration for Longwood Gardens''. 19–23. Timber Press. and the provinces of

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

Sichuan Sichuan (; zh, c=, labels=no, ; zh, p=Sìchuān; alternatively romanized as Szechuan or Szechwan; formerly also referred to as "West China" or "Western China" by Protestant missions) is a province in Southwest China occupying most of the ...

and

Xizang The Tibet Autonomous Region or Xizang Autonomous Region, often shortened to Tibet or Xizang, is a province-level autonomous region of the People's Republic of China in Southwest China. It was overlayed on the traditional Tibetan regions of Ü ...

(

Tibet Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the plateau are some other ethnic groups such as Monpa people, ...

) in China. It is found in broadleaf forest on mountain slopes at elevations of 1000–3000 m. Richens noted that the species appeared to be the same as that named by Grudzinskaya as ''Ulmus androssowii'' var. ''virgata'', which she considered an intermediate between ''U. minor'' and ''U. pumila''.Richens, R. H. (1977). Variation, cytogenics, and breeding of the European field elms. ''Annales Forestales Analiza Sumartsvo (Zagreb).'' 7, 107–141.

Description

Very occasionally growing to 25 m high, it has a spreading crown of sinuous branches. The blackish-grey bark of the trunk is irregularly reticulate, and exfoliate. The wing-less branchlets bear narrow obovate-acuminate to elliptic-acuminate leaves < 10 cm long x 4 cm broad. The wind-pollinated

apetalous Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually ...

flowers appear in spring, followed by orbicular samarae 10–12 mm in diameter.Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) ''Flora of China'', Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA.

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Pests and diseases

No information available.

Uses

Like most elms, the tree is valued as fodder. The bark fibres are used for rope making and are also included with wool to make extra warm clothing.Melville, R. & Heybroek, H. M. (1971). The Elms of the Himalaya. ''Kew Bulletin'' Vol. 26 (1). Royal Botanic Garden, Kew, Londo

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Cultivation

The tree is not known to be in cultivation beyond Asia. Specimens introduced to the Netherlands by Hans M. Heybroek, Heybroek in the 1960s did not prove hardy.

Hybrids and cultivars

*'' Ulmus × brandisiana'', a naturally occurring

hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two dif ...

arising from a cross of ''U. chumlia'' and ''

Ulmus wallichiana ''Ulmus wallichiana'' Planch., the Himalayan elm, also known as the Kashmir elm and Bhutan elm, is a mountain tree ranging from central Nuristan in Afghanistan, through northern Pakistan and northern India to western Nepal at elevations of 800&n ...

'', first identified and named by Melville and Hans M. Heybroek, Heybroek from specimens collected by the latter during his expedition to the

in 1960. There are no known cultivars of ''U. chumlia'', nor is it known to be in commerce.

References

External links

* Heybroek specimen, W. Himalayas, 1960 * Heybroek specimen, W. Himalayas, 1960 * ''U. chumlia'', Heybroek specimen, W. Himalayas, 1960 {{Taxonbar, from=Q7879430 chumlia Flora of West Himalaya Trees of Nepal Trees of Pakistan Flora of Sichuan Flora of Tibet Flora of Yunnan Ulmus articles missing images Elm species and varieties