''Ulmus bergmanniana'' var. ''lasiophylla'' C. K. Schneid. (Hairy-leaved Bergmann's elm) is endemic to China, on mountain slopes at elevations of 2100–2900 m in

Gansu Gansu (, ; alternately romanized as Kansu) is a province in Northwest China. Its capital and largest city is Lanzhou, in the southeast part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibet ...

, Shaanxi, north-west Sichuan, south-east Xizang (formerly Tibet), and north-west Yunnan.

Description

The tree is distinguished by Fu (2002) as having "Leaf blade adaxially with densely curved pubescence. Flowers and fruits February - April".Campbell University Herbarium specimen. Sheet labelled ''U. bergmanniana'' var. ''lasiophylla'' Schneid., flowers from Morton Arboretum (2011)
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Cultivation

Var. ''lasiophylla'' is cold hardy; in artificial freezing tests at the Morton ArboretumShirazi, A. M. & Ware, G. H. (2004). ''Evaluation of New Elms from China for Cold Hardiness in Northern Latitudes''. International Symposium on Asian Plant Diversity & Systematics 2004,

Sakura A cherry blossom, also known as Japanese cherry or sakura, is a flower of many trees of Prunus, genus ''Prunus'' or Prunus subg. Cerasus, ''Prunus'' subg. ''Cerasus''. They are common species in East Asia, including China, Korea and especia ...

, Japan. the

LT50 LT50 is the median Lethal Time (time until death) after exposure of an organism to a toxic substance or stressful condition. LT50 is commonly used in toxicology studies to quantify amount of a stressor necessary to kill an organism. LT50 can be use ...

(temp. at which 50% of tissues die) was found to be - 27.7 ° C. There are no known cultivars of this taxon, nor is it known to be in commerce.

Accessions

North America

* Chicago Botanic Garden, US. No accession details; planted in West Collections Area. * Morton Arboretum, US. Acc. no. 45–95. Collected from the wild at an unrecorded site in China. * United States National Arboretum, Washington, D.C., US. Acc. nos. 76218, 68978.

Europe

*Glendoick Gardens, Perthshire, UK; two trees (2017), source 'SSNY 205'. * Grange Farm Arboretumbr>
Lincolnshire, UK. Acc. no. 1057. * Royal Botanic Garden Edinburgh, UK. Acc. no. 19933397. Wild collected in

Kunming Kunming (; ), also known as Yunnan-Fu, is the capital and largest city of Yunnan province, China. It is the political, economic, communications and cultural centre of the province as well as the seat of the provincial government. The headquar ...

, China, by Gothenburg Expedition.

References

External links

efloras.org: ''U. bergmanniana'' var. ''lasiophylla'' leaves and fruit illustrationefloras.org: ''U. bergmanniana'' var. ''lasiophylla'' description
{{Taxonbar, from=Q7879425 Elm species and varieties Trees of China Flora of China Trees of Asia Ulmus articles missing images bergmanniana var. lasiophylla