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© Etienne Branquart
 
 
© Etienne Branquart
 
 
© Etienne Branquart, Belgian Biodiversity Platform
 
Spiraea x billardii - Billard's bridewort

French name:  Spirée de billard
Dutch name: Billardspirea
Family: Rosaceae
Group: Vascular plants
Origin: North America
Habitat: terrestrial
Introduction:  agri- and horticulture
ISEIA Score : 9
 
Naturalization in Belgium
First observation in the wild: 1895
Invasion stage: spread
Spatial distribution: restricted
Invasiveness
Reproduction in the wild: yes
Dispersion potential: medium
Natural habitats: likely
More on invasiveness: Spiraea billardii is a sterile horticultural hybrid between S. alba et S. douglasii. It only reproduces clonally. It grows mainly in ruderal areas and in riparian habitats. Plant habitat preferences are poorly known so far.
Distribution in Belgium
Established populations
absent from district
isolated populations (1-5 localities per district)
widespread (>5 localities per district)
Endangered areas
low risk
medium risk
high risk

Endangered Natura 2000 habitats ():
grasslands: 64306510
forest habitats: 9110912091E0*
Impacts on Species
Predation / Herbivory: low
Competition: high
Disease transmission: low
Genetic effects: low
Impacts on Ecosystems
Nutrient cycling: unknown
Physical alteration: likely
Natural successions: likely
Food web alteration: low
More on impacts: S. billardii is a fast-growing rhizomatous species, propagating clonally. As for other Spiraea species, it may easily form dense monospecific thickets smothering native vegetation. It is not known however if it has the capacity to inhibit plant successions like S. alba.
Data Source & References
Authors: Branquart Etienne, Dupriez Pascal, Vanderhoeven Sonia, Van Landuyt Wouter, Van Rossum Fabienne, Verloove Filip
Published on:  13 December 2010
Last update:  16 December 2010
References:
AEF (2006)
Cartes provisoires de la distribution de néophytes en Wallonie.
Unpublished document.
Brewitt, K. (2009)
Erfassung von Neophyten im Urfttal im Nationalpark Eifel und Vorschläge für ein Maßnahmenkonzept zum Umgang mit Neophyten im Nationalpark Eifel.
Gutachten im Auftrag des Nationalparkforstamtes Eifel, Werkvertragsnummer: 25/2009.
Duvigneaud, J. (1975)
Les Spiréoidées (Rosaceae, Spiraeoidae) en Belgique et dans les régions voisines.
Natura Mosana 28: 33-55.
Lambinon, J., Delvosalle, L. & Duvigneaud, J. (2004)
Nouvelle fore de la Belgique, du Grand-Duché de Luxembourg, du Nord de la France et des régions voisines.
Editions du Patrimoine du Jardin botanique national de Belgique, Meise.
Lohmeyer, W. & Sukopp, H. (2001)
Agriophyten in der Vegetation Mitteleuropas.
In: Brandes, D. (ed.) Adventivpflanzen. Beiträge zur Biologie, Vorkommen und Ausbreitungsdynamik von Archäophyten und Neophyten in Mitteleuropa, vol 8. Universitätsbibliothek Braunschweig, Braunschweig, pp 179-220.
Meilleur, A. , Veronneau, H. & Bouchard, A. (1994)
Shrub communities as inhibitors of succession in Southern Quebec.
Environmental Management 18: 907-921.
Paulus, B. (2009)
Etude de la régénération et de la sélection d’habitat de trois espèces de spirées exotiques (S. alba, S. douglasii et S. xbillardii).
Travail de fin d'études, FUSAGx, 66 pp.
Van Landuyt, W., Hoste, I., Vanhecke, L., Van den Bremt, P. Vercruysse, W. & De Beer, D. (2006)
Atlas van de Flora van Vlaanderen en het Brussels gewest.
Nationale Plantentuin en het Instituut voor Natuur- en Bosonderzoek i.s.m. Flo.Wer vzw.
Verloove, F. (2006)
Catalogue of the Neophytes in Belgium (1800-2005).
Scripta Botanica Belgica 39, 89 pp.

 
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