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Ulmus 'Rebona'

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Ulmus 'Rebona'
'Rebona', Treskowstrasse, Heinersdorf, Berlin (2014)
GenusUlmus
Hybrid parentageU. davidiana var. japonica × U. pumila
Cultivar'Rebona'
OriginUS

Ulmus 'Rebona' is an American hybrid cultivar raised by the Wisconsin Alumni Research Foundation (WARF) as selection 'W916', derived from a crossing of Japanese Elm clone W43-8 = 'Reseda' with Siberian Elm clone W426 grown from seed collected from a street tree at Yankton, South Dakota.[1] The tree was registered in 1993 by Conrad Appel KG, of Darmstadt (ceased trading 2006) and is a sibling of 'New Horizon' (selection 'W917'). In Europe, 'Rebona' is marketed as a Resista elm[2] protected under E U breeders' rights (E U council decision 2100/94).

Description

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'Rebona' leaf

'Rebona' bears a close resemblance to its sibling 'New Horizon', but requires less maintenance owing to a better leader. The tree grows rapidly,[3] developing a fastigiate pyramidal shape with ascending branches. The glossy leaves (6 to 9 cm long by 3 to 5 wide) are described by Resista Ulmen as "a little smaller and darker" than those of 'New Horizon'.[3][4] The petiole is 10 to 15 mm long.[5][6]

Pests and diseases

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'Rebona' is highly resistant to Dutch elm disease, rated 5 out of 5.[4]

Cultivation

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'Rebona' has been widely planted as a street tree in Germany, the Netherlands, and to a lesser extent in France and the UK.[7]

Synonymy

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Accessions

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Europe

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Nurseries

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Europe

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  • Baumschule Grossbötzl Ort, Austria.
  • Björkhaga Plantskola Veberöd, Sweden.
  • Clasen & Co Rellingen, Germany.
  • Eisele GmbH, Darmstadt, Germany.
  • Hilliers Nurseries, Liss, UK.
  • Noordplant, Glimmen, Netherlands.
  • Boomkwekerij Ebben, Cuijk, Netherlands.
  • Pépinières Rouy-Imbert Monfavet-Avignon, France.

References

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  1. ^ 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.
  2. ^ Resista elms, resista-ulmen.com
  3. ^ a b Ulmus 'Rebona', resista-ulmen.com
  4. ^ a b Heybroek, H. M., Goudzwaard, L, Kaljee, H. (2009). Iep of olm, karakterboom van de Lage Landen (:Elm, a tree with character of the Low Countries). KNNV, Uitgeverij. ISBN 978 90 5011 281 9
  5. ^ Ulmus 'Rebona', ulmen-handbuch.de
  6. ^ Philipp Schönfeld, Ulmus 'Rebona', gartenpraxis.de/aktuelles/news/ulme-rebona; 30 October 2023
  7. ^ Brookes, A. H. (2020). Disease-resistant elm cultivars. Butterfly Conservation, Lulworth, England. [1]
  8. ^ a b 'Rebona' photos on noordplant.nl
  9. ^ Jolanda Faber, 'Regional history: Trees on Wilhelminaplein', 2016
  10. ^ 'For public spaces in Naaldwijk'; Naaldwijk-wilhelminaplein-19-juli-2016-vo-openbare-ruimte