Ulmus davidiana var. davidiana is variety of elm. The tree is restricted to the Chinese provinces of Hebei, Henan, Shaanxi and Shanxi.
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.
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 , Washington, D.C., United States. (Listed under synonym U. davidiana var. mandshurica) Acc. nos. 76223, 68982.