| Ulmus harbinensis | |
|---|---|
) | |
| Harbin elm leaves | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Ulmaceae |
| Genus: | Ulmus |
| Species: | U. harbinensis |
| Binomial name | |
| Ulmus harbinensis Nie & Huang | |
Ulmus harbinensis Nie & Huang, also known as the Harbin elm, is a small elm found only in the province of Heilongjang in the northeastern extremity of China, where it occurs in mixed forest.
Description
A robust, sturdy tree which can reach a height of < 15 m, with a slender trunk of 0.3 m d.b.h. The bark is irregularly but finely fissured. The wing-less glabrous branchlets bear small, obovate, coarsely pubescent leaves < 5.5 cm long by 3.5 cm broad. The wind-pollinated apetalous flowers appear in April; the generally orbicular samarae in June.[1][2]
Pests and diseases
No information available.
Cultivation
The tree is very rare in cultivation. It was one of 12 Chinese species under evaluation by Dr George Ware at the Morton Arboretum, Illinois, in 2009.[3]
Accessions
- North America
- Brenton Arboretum, US. No accession details available
- Morton Arboretum, US. Acc. no. 585-2006.
- NCRPI Station, Iowa State University, Ames, US. Acc. no. Ames 29261.
- United States National Arboretum, Washington, D.C., US. Acc. no. 66829.
- Europe
- Grange Farm Arboretum, Lincolnshire, UK. Acc. no. 1071. Juvenile trees (2015) from cuttings ex. Morton Arboretum on U. glabra rootstocks.
Nurseries
- Europe
- Pan-global Plants [3], Frampton on Severn, Gloucestershire, UK
References
- ^ 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. [1]
- ^ "Ulmus harbinensis_EOL".
- ^ Dirr, M. (2009). 'Future Tree Selections'. Western, Spring 2009, p.8. Western Nursery & Landscape Association, St Joseph, Missouri.[2]