Ulmus parvifolia 'Sempervirens'

Ulmus parvifolia
Details
Cultivar	'Sempervirens'
Origin	USA

The Chinese Elm Ulmus parvifolia cultivar 'Sempervirens' is an American introduction, commonly known by the synonym 'Evergreen', and may also be in synonymy for U. parvifolia 'Pendens'.

Contents 1 Description 2 Pests and diseases 3 Cultivation 4 Synonymy 5 Accessions 5.1 North America 6 Nurseries 6.1 North America 7 References 8 External links

Description

Semi-evergreen to evergreen depending on climate, it is described as having a rounded crown and gracefully arching branches bearing deep-green foliage.

Pests and diseases

The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola [2].

Cultivation

The tree was first listed by Bailey & Bailey in Hortus Second, 747, 1941 ^[1], and remains in commercial cultivation in the USA. It is not known to be in cultivation in Europe or Australasia.

Synonymy

• Ulmus parvifolia 'Evergreen': Plant Buyer's Guide, ed. 5, 253, 1949.
• Ulmus parvifolia 'Pendens', possible synonym.
• Ulmus parvifolia sempervirens 'True Green': Monrovia Nursery Catalogue, 1971.

Accessions

North America

• Bartlett Tree Experts, North Carolina. Acc. no. 1451
• Brooklyn Botanic Garden [3], New York. Acc. no. X00486.

Nurseries

North America

• C J Growers, San Diego, California
• ForestFarm [4], Williams, Oregon (as 'Evergreen').
• Monrovia Nurseries [5], Azusa, California

References

External links

• http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/cultivars/ulmus_parvifolia.htm Ulmus parvifolia cultivar list.