Rudbeckia laciniata L.

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English Coneflower ISEIA: C1
Lëtzebuergesch Spléckbliedrege Sonnenhutt EASIN
Français Rudbéckie laciniée Wikipedia: Wikipedia - English- Coneflower Wikipedia - Deutsch - Schlitzblättriger Sonnenhut Wikipedia - Nederlands - Slipbladige rudbeckia
Deutsch Schlitzblättriger Sonnenhut Wikispecies: Wikispecies - Rudbeckia laciniata
Nederlands Slipbladige rudbeckia Back to the list of neophytes

Report the species

Report Rudbeckia laciniata to the National Museum of Natural History.

Brief description

Rudbeckia laciniata L. mostly grows in open ruderal and alluvial habitats (e.g. river banks). Seeds may only germinate from bare soil; the low germination and recruitment rates in undisturbed sites reduce plant capacity to colonise natural plant communities. The plant can however form dense and monospecific stands due to vegetative growth (rhizomes). R. laciniata, or coneflower, locally decreases plant species richness and hinders colonisation of open habitats by tree species, especially in riparian areas. The plant is toxic for livestock but also very melliferous (Branquart et al. 2010).

Status and distribution in Luxembourg

Distribution map of Rudbeckia laciniata L. in Luxembourg. Data source: Recorder-Lux, iNaturalist & GBIF, 2020-01-21.

The oldest herbarium specimen of Rudbeckia laciniata L. at the MNHNL was collected on 20 August 1935 by Jos. Witry in gardens in Schifflange (Specimen № 50794, MNHNL 2000-). The next scientific record that we know of was made by Léopold Reichling (1921-2009) on 12th June 1961 near the river Alzette in the municipality of Walferdange (MNHNL 2000-).

Currently, 2 records of coneflower are accessible through the MNHNL-mdata portal (MNHNL, iNaturalist & GBIF 2019).

This melliferous species from North America is naturalised in Europe, especially in central Europe. River and canal banks, river gravel, sometimes wasteland. Sometimes subspontaneous or adventitious. Sometimes cultivated for garden ornament (Lambinon & Verloove 2012: 719).

The species is comparable to Helianthus tuberosus in its ecology but is much less common in Luxembourg.

Risk assessment

ISEIA protocol: C1 (2+2+2+2) (Ries et al. 2013: 19).


  • Branquart, E., S. Vanderhoeven, W. Van Landuyt, F. Van Rossum & F. Verloove, 2010. Harmonia database: Rudbeckia laciniata L. Harmonia version 1.2, Belgian Forum on Invasive Species. URL: [accessed on 2019-10-15]
  • Lambinon J. & F. Verloove, 2012. Nouvelle flore de la Belgique, du grand-duché de Luxembourg, du Nord de la France et des régions voisines. Sixième édition. Avec la collaboration de L. Delvosalle, B. Toussaint, D. Geerinck, I. Hoste, F. Van Rossum, B. Cornier, R. Schumacker, A. Vanderpoorten et H. Vannerom. Jardin botanique national de Belgique, Meise. CXXXIX + 1195 pp. ISBN : 9789072619884.
  • MNHNL, 2000-. Rudbeckia laciniata L. in Recorder-Lux, database on the natural heritage of the Grand Duchy of Luxembourg. Musée national d’histoire naturelle, Luxembourg. URL: [Accessed 2019-10-15]
  • MNHNL, iNaturalist & GBIF, 2019. Rudbeckia laciniata L. in MNHNL-mdata, online portal combining species observation from Recorder-Lux, iNaturalist and GBIF. National Museum of Natural History, Luxembourg. URL: [Accessed 2019-10-15]
  • Ries, C., Y. Krippel, M. Pfeiffenschneider & S. Schneider, 2013. Environmental impact assessment and black, watch and alert list classification after the ISEIA Protocol of non-native vascular plant species in Luxembourg. Bull. Soc. Nat. luxemb. 114: 15-21. [PDF 652 KB]

 Page content last updated on 2019-11-21. Last proofread by Caroline Grounds on 2019-11-21.