''Ulmus'' 'Rebona' is an American

hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two diff ...

cultivar A cultivar is a kind of Horticulture, cultivated plant that people have selected for desired phenotypic trait, traits and which retains those traits when Plant propagation, propagated. Methods used to propagate cultivars include division, root a ...

raised by the

Wisconsin Alumni Research Foundation The Wisconsin Alumni Research Foundation is the independent nonprofit technology transfer organization serving the University of Wisconsin–Madison and Morgridge Institute for Research. It provides significant research support, granting tens o ...

(WARF) as selection 'W916', derived from a crossing of Japanese Elm clone W43-8 = 'Reseda' with

Siberian Elm ''Ulmus pumila'', the Siberian elm, is a tree native to Asia. It is also known as the Asiatic elm and dwarf elm, but sometimes mistakenly called the "Chinese" elm (''Ulmus parvifolia''). ''U. pumila'' has been widely cultivated throughout A ...

clone W426 grown from seed collected from a street tree at

Yankton, South Dakota Yankton is a city in and the county seat of Yankton County, South Dakota, United States. It became a city in 1889. The population was 15,411 at the 2020 United States census, 2020 census, making it the List of cities in South Dakota, 7th most po ...

. The tree was registered in 1993 by Conrad Appel KG, of

Darmstadt Darmstadt () is a city in the States of Germany, state of Hesse in Germany, located in the southern part of the Frankfurt Rhine Main Area, Rhine-Main-Area (Frankfurt Metropolitan Region). Darmstadt has around 160,000 inhabitants, making it the ...

(ceased trading 2006) and is a sibling of 'New Horizon' (selection 'W917'). In Europe, 'Rebona' is marketed as a ''Resista'' elm 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,''Ulmus'' 'Rebona', resista-ulmen.com
/ref> 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'.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. The petiole is 10 to 15 mm long.

Pests and diseases

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

Cultivation

'Rebona' has been widely planted as a street tree in Germany, the Netherlands, and to a lesser extent in France and the UK.Brookes, A. H. (2020). ''Disease-resistant elm cultivars''. Butterfly Conservation,

Lulworth Lulworth is the popular name for an area on the coast of Dorset, South West England notable for its castle and cove. However, there is no actual place or feature called simply "Lulworth", the villages are East and West Lulworth and the coastal f ...

, England

/ref> The tree has never been offered for sale in the United States. File:Koemarkt Purmerend in de zomer.JPG, Lines of 'Rebona' in

Purmerend Purmerend () is a city and municipality in the west of the Netherlands, in the province of North Holland. The city is surrounded by polders, such as the Purmer, Beemster and the Wormer. Purmerend's population grew relatively slowly until the 1960s ...

city centre, the Netherlands (2015)'Rebona' photos on noordplant.nl
/ref> File:P4170108 Treskowstr.JPG, 'Rebona' in spring, Treskowstrasse, Berlin-Heinersdorf (2012) File:A-12 buses used for transport 20230909.jpg, 'Rebona' lining Utrechtsebaan, The Hague (September 2023) File:Wilhelminaplein Naaldwijk 2019.jpg, 'New Horizon' and 'Rebona' alternating in the Wilhelminaplein,

Naaldwijk Naaldwijk () is a town in the Dutch province of South Holland. It is a part of the municipality of Westland, and lies about 10 km (6 miles) southwest of The Hague. Naaldwijk lies in the heart of Westland. The largest economic sector is g ...

(2019)'For public spaces in Naaldwijk'; Naaldwijk-wilhelminaplein-19-juli-2016-vo-openbare-ruimte

Synonymy

* 'Rebone'

Accessions

Europe

*Botanischer Garten Marburg,

Marburg Marburg (; ) is a college town, university town in the States of Germany, German federal state () of Hesse, capital of the Marburg-Biedenkopf Districts of Germany, district (). The town area spreads along the valley of the river Lahn and has ...

, Germany. No details available. *

Grange Farm Arboretum The Grange Farm Arboretum is a small private arboretum comprising 3 hectares accommodating over 800 trees, mostly native and ornamental species or cultivars, notably oaks, ashes, walnuts and elms, growing on a calcareous loam.Ostler, J. (2009) ...

Lincolnshire Lincolnshire (), abbreviated ''Lincs'', is a Ceremonial counties of England, ceremonial county in the East Midlands and Yorkshire and the Humber regions of England. It is bordered by the East Riding of Yorkshire across the Humber estuary to th ...

, UK. Acc. no. not known. *

Royal Botanic Gardens, Kew Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,10 ...

, UK. Acc. no. not known. *

Sir Harold Hillier Gardens The Sir Harold Hillier Gardens is an arboretum comprising 72 hectares (180 acres) accommodating over 42,000 trees and shrubs in about 12,000 taxa, notably a collection of oaks, camellia, magnolia and rhododendron. The Gardens are located north ...

Romsey Romsey ( ) is a town in the Test Valley district of Hampshire, England. The town is situated northwest of Southampton, southwest of Winchester and southeast of Salisbury. It sits on the outskirts of the New Forest, just over northeast of ...

, UK. One tree planted Crookhill overflow parking area. Acc. no. 2018.0019

Nurseries

Europe

*Baumschule Grossbötzl Ort, Austria. *Björkhaga Plantskola

Veberöd Veberöd () is a locality situated in Lund Municipality, Skåne County, Sweden with 5,500 inhabitants in 2014. It is near Vombsjön Vombsjön (sometimes called ''Våmbsjön'') is a lake in Scania, Sweden. It is located 20 km to the east of L ...

, Sweden. *Clasen & Co

Rellingen Rellingen is a municipality in the district of Pinneberg, in Schleswig-Holstein, Germany. It is situated approximately 7 km east of Pinneberg, and 10 km northwest of Hamburg. Population as of December 31, 2007 is 13,746. The total land ...

, Germany. *Eisele GmbH,

, Germany. *Hilliers Nurseries,

Liss Liss, Lyss or LISS may refer to *Liss (band), a Danish musical group * Liss (name), a given name and surname *Liss, Hampshire, a village in England ** West Liss, the oldest part of Liss village **Liss Forest, a hamlet near Liss ** Liss Athletic F ...

, UK. *Noordplant,

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 t ...

, Netherlands. *Boomkwekerij Ebben,

Cuijk Cuijk (; dialect: ''Kuuk'') is a town in the northeastern part of the Provinces of the Netherlands, province of North Brabant, Netherlands. It is the successor of a Roman Empire, Roman settlement on the west bank of the Meuse, south of Nijmegen. ...

, Netherlands. *Pépinières Rouy-Imbert Monfavet-

Avignon Avignon (, , ; or , ; ) is the Prefectures in France, prefecture of the Vaucluse department in the Provence-Alpes-Côte d'Azur region of southeastern France. Located on the left bank of the river Rhône, the Communes of France, commune had a ...

, France.

References

Hybrid elm cultivar Ulmus articles with images Ulmus {{Ulmaceae-stub