Ulmus harbinensis

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].

Pests and diseases

No information available.

Cultivation

The tree is very rare in cultivation beyond China.

Accessions

North America

• Brenton Arboretum, Dallas Center, Iowa. No accession details available.
• Morton Arboretum. Acc. no. 585-2006.
• NCRPI Station, Iowa State University, Ames. Acc. no. Ames 29261.
• U S National Arboretum, Washington, D.C., USA. Acc. no. 66829.

References