''Ulmus davidiana'' var. ''japonica'' 'JFS-Bieberich' (sold as ) is a

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 ...

that was raised by the Sunshine Nursery, Oklahoma, from seed collected in China by proprietor Steve Bieberich.Davis, T. (2007). Ulmus . ''Nursery Management & Production'', August 2007 proved only moderately successful in the US National Elm Trial, averaging a survival rate of 70% overall.

Description

attains a height of 9 m and develops a neat vase shape, the crown < 7.5 m in width borne by a stout stem. The cultivar has thick, deep-green leave

turning dull yellow in the fall. Trees planted as part of the National Elm Trial at the Bowley Plant Science Teaching Center,

U C Davis The University of California, Davis (UC Davis, UCD, or Davis) is a public land-grant research university near Davis, California. Named a Public Ivy, it is the northernmost of the ten campuses of the University of California system. The instit ...

, in northern

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

grew comparatively slowly, increasing in height by 1 m and

d.b.h. Diameter at breast height, or DBH, is a standard method of expressing the diameter of the trunk or bole of a standing tree. DBH is one of the most common dendrometric measurements. Tree trunks are measured at the height of an adult's breast, ...

by 1.6 cm per annum.McPherson, G. et al. (2008). National elm trial: Initial report from Northern California. ''Western Arborist'', Fall 2009, 32–36. The tree was summarized by Michael Dirr, Professor of Horticulture at the

University of Georgia , mottoeng = "To teach, to serve, and to inquire into the nature of things.""To serve" was later added to the motto without changing the seal; the Latin motto directly translates as "To teach and to inquire into the nature of things." , establ ...

as 'impressive

Pests and diseases

is resistant to

Dutch elm disease Dutch elm disease (DED) is caused by a member of the sac fungi (Ascomycota) affecting elm trees, and is spread by elm bark beetles. Although believed to be originally native to Asia, the disease was accidentally introduced into Americas, America ...

and

Elm Yellows Elm yellows is a plant disease of elm trees that is spread by leafhoppers or by root grafts."Elm Yellows." Elmcare.Com. 19 Mar. 2008 . Elm yellows, also known as elm phloem necrosis, is very aggressive, with no known cure. Elm yellows occurs in th ...

(

Phloem Phloem (, ) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as ''photosynthates'', in particular the sugar sucrose, to the rest of the plant. This transport process is c ...

necrosis). Foliage of trees under assessment at the aforementioned National elm trial site at U C Davis suffered minimal damage caused by the elm leaf beetle ''

Xanthogaleruca luteola ''Xanthogaleruca luteola'', commonly known as the elm-leaf beetle, is a beetle species in the family Chrysomelidae that is native to Europe but invasive in other parts of the world.http://cisr.ucr.edu/elm_leaf_beetle.html - Center for Invasive Sp ...

'', whilst damage caused by

Japanese Beetle The Japanese beetle (''Popillia japonica'') is a species of scarab beetle. The adult measures in length and in width, has iridescent copper-colored elytra and a green thorax and head. It is not very destructive in Japan (where it is control ...

in trials at the

University of Kentucky The University of Kentucky (UK, UKY, or U of K) is a public land-grant research university in Lexington, Kentucky. Founded in 1865 by John Bryan Bowman as the Agricultural and Mechanical College of Kentucky, the university is one of the state ...

was found to be slight, owing to the dense pubescence on the underside of the leaves.Brady, C., Condra, J., & Potter, D. (2008) Resistance of Landscape-suitable Elm (Ulmus spp.) Cultivars to Japanese Beetle, Leaf Miners, and Gall Makers. ''2008 Research Report, Nursery & Landscape Program'', 15–16. University of Kentucky.Dirr, M. (2009). 'Future Tree Selections'. ''Western'', Spring 2009, p.8. Western Nursery & Landscape Association, St Joseph, Missour

/ref>

Cultivation

is tolerant of high pH levels and soil compaction; it is also very resistant to desiccating winds. The species does not sucker from roots. The cultivar is represented in Europe by five young grafted trees at the Noordplant nursery,

Glimmen Glimmen is a village in the northeastern Netherlands. It is located in the municipality of Groningen, about 10 kilometres from the city. It had a population of around 1,342 in 2021. The river Drentsche Aa flows past the village, nearby the ''Huis ...

, The Netherlands; it is not known to have been introduced to

Australasia Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologi ...

Accessions

North America

University of Idaho The University of Idaho (U of I, or UIdaho) is a public land-grant research university in Moscow, Idaho. It is the state's land-grant and primary research university,, and the lead university in the Idaho Space Grant Consortium. The Universit ...

Arboretum, US. Acc. no. 2006033

Nurseries

;North America *J. Frank Schmidt & Son Co

Boring, Oregon, Boring,

Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. T ...

, US.

Synonymy

*''Ulmus propinqua'' C. K. Schneid. 'JFS-Bieberich' =

Etymology

Named 'JFS' for the J. Frank Schmidt nursery, Oregon, and 'Bieberich' for the proprietor of the Sunshine Nursery in Oklahoma.

References

External links

*http://treehealth.agsci.colostate.edu/research/nationalelmtrial/NationalElmTrial.htm {{DEFAULTSORT:Ulmus davidiana var. japonica 'JFS-Bieberich' Emerald Sunshine Japanese elm cultivar Ulmus articles missing images Ulmus