Ulmus glaucescens var. lasiocarpa
From Wikipedia, the free encyclopedia
| Ulmus glaucescens var. lasiocarpa | |
|---|---|
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Rosales |
| Family: | Ulmaceae |
| Genus: | Ulmus |
| Species: | Ulmus glaucescens |
| Trinomial name | |
| Ulmus glaucescens var. lasiocarpa Rehder |
|
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, Henan, Liaoning, Nei Mongol, Ningxia, eastern Qinghai, and Shanxi.
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[edit] Description
The variety is distinguished by a "samara densely pubescent when young, with scattered hairs when mature. Fl. and fr. March - May.".[1]
[edit] Pests and diseases
The tree was heavily damaged by the Elm Leaf Beetle Xanthogaleruca luteola in trials in Oklahoma [2].
[edit] Cultivation
There are no known cultivars of this taxon, nor is it known to be in commerce.
[edit] Accessions
[edit] North America
- Morton Arboretum, Illinois. Acc. no. 537-76: two trees raised from seed sent by the Beijing Botanical Garden, one in the China garden, central section, another along the Du Page River.
- U S National Arboretum [3], Washington, D.C., USA. Acc. no. 76255.
[edit] Europe
- Grange Farm Arboretum, Sutton St James, Spalding, Lincolnshire, UK. Grafted tree. Acc. no. 700.
[edit] Australasia
- Mount Lofty Botanic Garden, Piccadilly, South Australia. 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.
