Biology:Ulmus 'Rebona'
| Ulmus 'Rebona' | |
|---|---|
_120606a.jpg) 'Rebona', Berlin Heinersdorf-Treskowstrasse | |
| Genus | Ulmus |
| Hybrid parentage | U. davidiana var. japonica × U. pumila |
| Cultivar | 'Rebona' |
| Origin | US |
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
'Rebona' bears a close resemblance to its sibling 'New Horizon', but requires less maintenance owing to a better leader. The tree grows rapidly, developing a fastigiate pyramidal shape with ascending branches. The glossy clear-green leaves are comparatively small, though slightly larger than those of 'New Horizon'.[2]
Pests and diseases
'Rebona' is highly resistant to Dutch elm disease, rated 5 out of 5.[2]
Cultivation
'Rebona' has been widely planted as a street tree in Germany, [3] [4] the Netherlands, and to a lesser extent in France and the UK.[3]
Synonymy
- 'Rebone' [1]
Accessions
Europe
- Botanischer Garten Marburg [5], Marburg, Germany. No details available.
- Grange Farm Arboretum, Lincolnshire, UK. Acc. no. not known.
- Royal Botanic Gardens, Kew, UK. Acc. no. not known.
- Sir Harold Hillier Gardens, Romsey, UK. One tree planted Crookhill overflow parking area. Acc. no. 2018.0019
- Wijdemeren City Council, Netherlands. Elm Collection, first planted 2005 De Vijnen, Nederhorst den Berg. Used in elm trials Ankeveen 2009.
Nurseries
Europe
- Baumschule Grossbötzl Ort, Austria.
- Björkhaga Plantskola Veberöd, Sweden.
- Clasen & Co Rellingen, Germany.
- Eisele GmbH, [6], Darmstadt, Germany.
- Hilliers Nurseries [7], Liss, UK.
- Noordplant [8], Glimmen, Netherlands.
- Pépinières Rouy-Imbert Monfavet-Avignon, France.
References
- ↑ 1.0 1.1 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. http://joa.isa-arbor.com/request.asp?JournalID=1&ArticleID=2673&Type=2. Retrieved 20 June 2016.
- ↑ 2.0 2.1 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
- ↑ Brookes, A. H. (2020). Disease-resistant elm cultivars. Butterfly Conservation, Lulworth, England. [1]
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![[3]](http://www.ulmenbuero.de/handbuch/ulmus/fotos/ulmus_rebona_01_gr.jpg){kind=link}