The

Japanese Elm Japanese elm is a common name for several plants and may refer to: * ''Ulmus davidiana'' var. ''japonica'' *''Zelkova serrata ''Zelkova serrata'' (Japanese zelkova, Japanese elm or keyaki or keaki; ja, 欅 (ケヤキ) keyaki /槻 (ツキ) tsu ...

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture ...

''Ulmus davidiana'' var. ''japonica'' 'Validation' is a selection made by Kunso Kim and Bethany Brown of the

Morton Arboretum The Morton Arboretum, in Lisle, Illinois, United States, is a public garden, and outdoor museum with a library, herbarium, and program in tree research including the Center for Tree Science. Its grounds, covering 1,700 acres (6.9 square kilometres ...

released in 2011; propagation is by grafting onto Siberian Elm '' Ulmus pumila'' rootstocks. Morton Arboretum plant database, 2015

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Description

'Validation' is a vase-shaped tree, the trunk bark smooth and gray. The current year's twigs are light green, contrasting with the previous year's, which are greenish brown.

Pests and diseases

Not known.

Cultivation

The tree is very rare in cultivation beyond the Morton Arboretum.

Accessions

;North America *

Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...

, US. Acc. No. 22-2008, one plant. ;Europe * Grange Farm Arboretum,

Lincolnshire Lincolnshire (abbreviated Lincs.) is a Counties of England, county in the East Midlands of England, with a long coastline on the North Sea to the east. It borders Norfolk to the south-east, Cambridgeshire to the south, Rutland to the south-we ...

, UK. Acc. no. 1126.

References

{{DEFAULTSORT:Ulmus Davidiana Var. Japonica 'Validation' Japanese elm cultivar Ulmus articles missing images Ulmus