''Ulmus glaucescens'' var. ''glaucescens'' is a Chinese tree endemic to mountain slopes at elevations of 2000–2400 m in the provinces of
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 ...
,
Hebei,
Henan,
Liaoning
Liaoning () is a coastal province in Northeast China that is the smallest, southernmost, and most populous province in the region. With its capital at Shenyang, it is located on the northern shore of the Yellow Sea, and is the northernmost ...
,
Nei Mongol,
Ningxia, eastern
Qinghai,
Shaanxi,
Shandong
Shandong ( , ; ; alternately romanized as Shantung) is a coastal province of the People's Republic of China and is part of the East China region.
Shandong has played a major role in Chinese history since the beginning of Chinese civilizati ...
, and
Shanxi
Shanxi (; ; formerly romanised as Shansi) is a landlocked province of the People's Republic of China and is part of the North China region. The capital and largest city of the province is Taiyuan, while its next most populated prefecture-lev ...
.
Description
The variety is distinguished by a "Samara glabrous except stigmatic surface pubescence in notch. Fl. and fr. March–May".
[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.
Cultivation
The tree is very rare in cultivation beyond China.
Accessions
North America
* Morton Arboretum, US. Acc. details not known.
Europe
* Grange Farm Arboretum, Lincolnshire, UK. Two grafted trees from cuttings ex Morton. Acc. no. 1130.
References
{{Taxonbar, from=Q7879489
glaucescens var. glaucescens
Trees of China
Flora of China
Trees of Asia
Ulmus articles missing images
Elm species and varieties