Ulmus glaucescens var. lasiocarpa explained

Ulmus glaucescens var. lasiocarpa Rehder, named the hairy-fruited glaucescent elm in the United States, is a Chinese tree found along rivers and mountain slopes at elevations of 2500 - 2600 m in the provinces of Hebei, Henan, Liaoning, Nei Mongol, Ningxia, eastern Qinghai, and Shanxi.

Description

The variety is distinguished by a "samara densely pubescent when young, with scattered hairs when mature. Fl. and fr. March - May.".^[1]

Pests and diseases

No information

Cultivation

There are no known cultivars of this taxon, nor is it known to be in commerce.

Accessions

Australasia

• Mount Lofty Botanic Garden, Piccadilly, Australia. One tree, raised from seed sent by the Beijing Botanical Garden, planted out c. 1984, 4.5 m high, d.b.h. 13 cm in 2008.

External links

• efloras.org: U. glaucescens var. lasiocarpa description
• Photographs labelled U. glaucescens var. lasiocarpa on Plant Photo Bank of China, ppbc.iplant

Notes and References

1. 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. http://flora.huh.harvard.edu/china/PDF/PDF05/Ulmus.pdf