Ulmus 'Rebona'
Ulmus 'Rebona' | |
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'Rebona', Treskowstrasse, Heinersdorf, Berlin (2014) | |
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,[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
'Rebona' is highly resistant to Dutch elm disease, rated 5 out of 5.[4]
Cultivation
'Rebona' has been widely planted as a street tree in Germany, the Netherlands, and to a lesser extent in France and the UK.[7]
- Lines of 'Rebona' in Purmerend city centre, the Netherlands (2015)[8]
- 'Rebona' in spring, Treskowstrasse, Berlin-Heinersdorf (2012)
- 'Rebona' lining Utrechtsebaan, The Hague (September 2023)[8]
- 'New Horizon' and 'Rebona' alternating in the Wilhelminaplein, Naaldwijk (2019)[9][10]
Synonymy
- 'Rebone' [1]
Accessions
Europe
- Botanischer Garten Marburg, 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
Nurseries
Europe
- 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
- ^ 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.
- ^ Resista elms, resista-ulmen.com
- ^ a b Ulmus 'Rebona', resista-ulmen.com
- ^ 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
- ^ Ulmus 'Rebona', ulmen-handbuch.de
- ^ Philipp Schönfeld, Ulmus 'Rebona', gartenpraxis.de/aktuelles/news/ulme-rebona; 30 October 2023
- ^ Brookes, A. H. (2020). Disease-resistant elm cultivars. Butterfly Conservation, Lulworth, England. [1]
- ^ a b 'Rebona' photos on noordplant.nl
- ^ Jolanda Faber, 'Regional history: Trees on Wilhelminaplein', 2016
- ^ 'For public spaces in Naaldwijk'; Naaldwijk-wilhelminaplein-19-juli-2016-vo-openbare-ruimte
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- U. alata (Winged elm)
- U. americana (American elm)
- U. americana var. floridana (Florida elm)
- U. bergmanniana (Bergmann's elm)
- U. bergmanniana var. bergmanniana
- U. bergmanniana var. lasiophylla
- U. castaneifolia (Chestnut-leafed or multinerved elm)
- U. changii (Hangzhou elm)
- U. changii var. changii
- U. changii var. kunmingensis (Kunming elm)
- U. chenmoui (Chenmou or Langya Mountain elm)
- U. chumlia
- U. crassifolia (Cedar or Texas cedar elm)
- U. davidiana (David or Father David elm)
- U. davidiana var. davidiana
- U. davidiana var. japonica (Japanese elm)
- U. elongata (Long raceme elm)
- U. gaussenii (Anhui or hairy elm)
- U. glabra (Wych or scots elm)
- U. glaucescens (Gansu elm)
- U. glaucescens var. glaucescens
- U. glaucescens var. lasiocarpa (hairy-fruited glaucescent elm)
- U. harbinensis (Harbin elm)
- U. ismaelis
- U. laciniata (Manchurian cut-leaf or lobed elm)
- U. laciniata var. nikkoensis (Nikko elm)
- U. laevis (European white elm)
- U. laevis var. celtidea
- U. laevis var. parvifolia
- U. laevis var. simplicidens
- U. lamellosa (Hebei elm)
- U. lanceifolia (Vietnam elm)
- U. macrocarpa (Large-fruited elm)
- U. macrocarpa var. glabra
- U. macrocarpa var. macrocarpa
- U. mexicana (Mexican elm)
- U. microcarpa (Tibetan elm)
- U. minor (Field elm)
- U. minor subsp. minor
- U. minor var. italica
- U. parvifolia (Chinese or lacebark elm)
- U. parvifolia var. coreana (Korean elm)
- U. prunifolia (Cherry-leafed elm)
- U. pseudopropinqua (Harbin spring elm)
- U. pumila (Siberian elm)
- U. rubra (Slippery elm)
- U. serotina (September elm)
- U. szechuanica (Szechuan (Sichuan) or red-fruited elm)
- U. thomasii (Rock or cork elm)
- U. uyematsui (Alishan elm)
- U. villosa (Cherry-bark or marn elm)
- U. wallichiana (Himalayan or kashmir elm)
- U. wallichiana subsp. wallichiana
- U. wallichiana subsp. xanthoderma
- U. wallichiana var. tomentosa
- U. boissieri
- U. minor subsp. canescens (Grey, grey-leafed or hoary elm)
- U. elliptica
- U. davidiana var. japonica × U. minor
- U. × arbuscula
- U. × arkansana
- U. × brandisiana
- U. × diversifolia
- U. × hollandica (Dutch elm)
- U. × hollandica var. insularum
- U. × intermedia
- U. × mesocarpa
- aff. Plotii
- Acutifolia
- Alata
- Alksuth
- Argenteo-Marginata
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- Australis
- Berardii
- Betulaefolia Nigrescens
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- Gallica
- Glabra
- Globosa
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- Hertfordensis Angustifolia
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- Hillieri
- Jalaica
- Jacqueline Hillier
- Kansas Hybrid
- Klemmer Blanc
- Koopmannii
- Lombartsii
- Louis van Houtte
- Marmorata
- Monstrosa
- Myrtifolia
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- Nemoralis
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- Scampstoniensis
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- Turkestanica
- Variegata Nova
- Virens
- U. okanaganensis
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