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© Will Stuart
Rudbeckia laciniata - Cutleaf coneflower

French name:  Rudbéckie laciniée
Dutch name: Slipbladige rudbeckia
Family: Asteraceae
Group: Vascular plants
Origin: North America
Habitat: terrestrial
Introduction:  agri- and horticulture
ISEIA Score : 10
Naturalization in Belgium
First observation in the wild: 1849
Invasion stage: stabilization
Spatial distribution: isolated
Reproduction in the wild: yes
Dispersion potential: medium
Natural habitats: medium
More on invasiveness: The plant mostly grows in open ruderal and alluvial habitats (e.g. riverbanks). Seeds may only germinate from bare soils; the low germination and recruitment rates in undisturbed sites reduce plant capacity to colonise natural plant communities.
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: 6430
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: high
Food web alteration: low
More on impacts: R. laciniata is very competitive and forms dense monospecific populations from rhizomes. Plant height may reach 2.5 meters. It locally decreases plant species richness and hinders colonisation of open habitats by tree species. The plant is toxic for livestock but also very melliferous.
Data Source & References
Authors: Branquart Etienne, Vanderhoeven Sonia, Van Landuyt Wouter, Van Rossum Fabienne, Verloove Filip.
Published on:  16 March 2009
Last update:  22 December 2010
Francirkova, T. (2001)
Contribution of the invasive ecology of Rudbeckia laciniata in the Czech Republic.
In: Brundu, G., Brock, J., Camarda, I., Child, L., Wade, M. (eds.) Plant Invasions: Species Ecology and Ecosystem Management, Backhuys Publishers, Leiden: 89-98.
Hejda, M., Pysek, P. & Jarosik, V. (2009)
Impact of invasive plants on the species richness, diversity and composition of invaded communities.
Journal of Ecology 97: 393–403.
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.
Muller, S. (2004)
Plantes invasives en France : état des connaissances et propositions d'actions.
Publication scientifique du Museum d'Histoire naturelle, Patrimoines naturels n°62.
Weber, E. & Gut, D. (2004)
Assessing the risk of potentially invasive plant species in central Europe.
Journal for Nature Conservation12: 171-179.
Wittenberg, R. (2005)
An inventory of alien species and their threat to biodiversity and economy in Switzerland.
CABI Bioscience Switzerland Centre report to the Swiss Agency for Environment, Forests and Landscape. The environment in practice no. 0629: 155p.
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