“Ulmus davidiana var. davidiana”的意思、由来-开放百科全书

词条

Ulmus davidiana var. davidiana

释义

Description
Pests and diseases
Cultivation
Accessions
North America
Nurseries
References

{{DISPLAYTITLE:Ulmus davidiana var. davidiana}}{{infraspeciesbox
|genus = Ulmus
|species = davidiana
|varietas = davidiana
|authority = L. K. Fu
|synonyms = *Ulmus davidiana var. mandshurica Svortsov

Ulmus davidiana var. pubescens Svortsov

}}Ulmus davidiana var. davidiana was distinguished as a variety by L. K. Fu. The tree is restricted to the Chinese provinces of Hebei, Henan, Shaanxi and Shanxi.^[1]

Description

The tree has "Bark pale grey to grey. Samara densely pubescent on seed. Fl. and fr. March - May." ^[1]^[2]

Pests and diseases

No information available, but Ulmus davidiana has a moderate, 3 out of 5 resistance.

Cultivation

The tree is very rare in cultivation beyond China.

Accessions

North America

U S National Arboretum {{Dead link|date=July 2018 |bot=InternetArchiveBot |fix-attempted=no }}, Washington, D.C., United States. (Listed under synonym U. davidiana var. mandshurica) Acc. nos. 76223, 68982.

Nurseries

Europe

Pan-global Plants , Frampton on Severn, Gloucestershire, UK

References

1. ^¹Fu, 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.
2. ^U. davidiana var. davidiana in the Handbuch der Ulmengewächse

{{Elm species, varieties, hybrids, hybrid cultivars and species cultivars |state=collapsed}}{{Taxonbar|from=Q7879435}}{{Ulmaceae-stub}}

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