Ulmus davidiana var. davidiana

Ulmus davidiana var. davidiana is variety of elm. The tree is restricted to the Chinese provinces of Hebei, Henan, Shaanxi and Shanxi.[1]

Ulmus davidiana var. davidiana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Ulmaceae
Genus: Ulmus
Species:
Variety:
U. d. var. davidiana
Trinomial name
Ulmus davidiana var. davidiana
Synonyms
  • Ulmus davidiana var. mandshurica Svortsov
  • Ulmus davidiana var. pubescens Svortsov

Description

The tree has "Bark pale grey to grey. Samara densely pubescent on seed. Fl. and fr. March - May." The pubescence over the seed distinguishes var. davidiana from var. japonica.[1][2][3][4]

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

Nurseries

Europe

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.
  2. U. davidiana var. davidiana description, Flora of China, vol.5 p.7, efloras.org
  3. U. davidiana var. davidiana fruit and leaves illustration, Flora of China, efloras.org
  4. U. davidiana var. davidiana in the Handbuch der Ulmengewächse


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