Ulmus 'Hamburg'

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Ulmus
Cultivar 'Hamburg'
Origin USA

The hybrid elm cultivar Ulmus 'Hamburg' was originally raised by the Plumfield Nurseries, Fremont, Nebraska, circa 1932, after its discovery by Mr. Lloyd Moffet in a bed of Siberian Elm Ulmus pumila seedlings from Tekamah. It was later marketed by Interstate Nurseries, Hamburg, Iowa, in 1948, and claimed to be a hybrid of Ulmus pumila (female parent) and Ulmus americana. However it is now considered more likely that Ulmus rubra was the male parent.[1]

Description[edit]

'Hamburg' has been described as a hardy, very rapid grower, with much stronger branching than the Siberian Elm.[2][3]

Pests and diseases[edit]

'Hamburg' had not (by 1995) been widely tested for resistance to Dutch elm disease.[2]

Cultivation[edit]

Largely confined to the United States, several were introduced to the UK. The tree is not known to have been introduced to Australasia.

Synonymy[edit]

  • 'Hamburg Hybrid Elm': Interstate Nurseries, Hamburg, Iowa, Catalogue, Spring 1949.
  • 'Hybrid Chinese Elm': Anon.

Accessions[edit]

North America
Europe

References[edit]

  1. ^ Green, Peter Shaw (1964). "Registration of cultivar names in Ulmus". Arnoldia. Arnold Arboretum, Harvard University. 24 (6–8): 41–80. Retrieved 16 February 2017. 
  2. ^ a b Santamour, Frank S.; Bentz, Susan E. (May 1995). "Updated Checklist of Elm (Ulmus) Cultivars for use in North America". Journal of Arboriculture. 21 (3): 122–131. Retrieved 20 June 2016. 
  3. ^ Ulmus 'Hamburg' in Handbuch der Ulmengewächse, www.ulmen-handbuch.de [1]