'Recerta' at Amerbos, Amsterdam. Photo: R. Nijboer, Bonte Hoek kwekerijen
|Hybrid parentage||U. pumila × U. minor|
'Recerta' is an American cultivar raised by the Wisconsin Alumni Research Foundation (WARF) as selection '196-5' from seed obtained from a Siberian Elm Ulmus pumila in Volgagrad, Russia; the male parent deduced as the Field Elm Ulmus minor.
'Recerta' produces a straight, clean stem, supporting a rounded crown. The leaves are elliptic, with typically acuminate tip, the blade 6 - 12 cm long by 3 - 6.5 cm broad; the margins are doubly, if bluntly, serrate. 
Pests and diseases
Tests in the USA found the cultivar to be only "somewhat resistant to Dutch elm disease", meanwhile evaluation in France by the Institut National de la Recherche Agronomique (INRA) confirmed the tree as only 'moderately resistant'.
Serious doubts as to the tree's long term culture in Europe have been expressed. Although registered in 1993 as 'Recerta' by Conrad Appel KG (ceased trading 2006), of Darmstadt, Germany, the tree is not known to have ever been in commerce.
- Maethe, H. (1985), Deutsche Baumschule, Sept. 1985, pp. 368-369.
- Vermeulen, N. (2001), Encyclopaedia of Trees & Shrubs. Fitzroy Dearborn, ISBN 1-57958-119-6
- Götz, W. (1985). Die Ulme kehrt zurück. Baumschulpraxis. Nr. 12 / 85, pp 504 - 505. Aachen-Brand: Euroflora Klette Verl., Nd
- Santamour, F. S., & Bentz, S. E. Updated checklist of elm (Ulmus) cultivars for use in North America. Journal of Arboriculture, 21(3): May, 1995.
- Pinon, J. 2007). Les ormes résistants à la graphiose (:Elms resistant to Dutch Elm Disease). Forêt-entreprise, No. 175 - Juillet 2007, p 37-41, IDF, Paris, France. http://www.foretpriveefrancaise.com/data/info/127219-P.pdf
- Heybroek, H. M. (1986), Tuin en Landschap 8(12): 19, 1986.
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