Conyza canadensis (L.) Cronquist

English Canadian fleabane ISEIA: C3
Lëtzebuergesch n/a EASIN
Français Vergerette du Canada Wikipedia: Wikipedia - English - Canadian fleabane Wikipedia - Français - Vergerette du Canada Wikipedia - Deutsch - Kanadisches Berufkraut Wikipedia - Nederlands - Canadese fijnstraal
Deutsch Kanadisches Berufkraut Wikispecies: Wikispecies - Conyza canadensis
Nederlands Canadese fijnstraal Back to the list of neophytes

Report the species

Report Conyza canadensis to the National Museum of Natural History.

Importance and distribution in Luxembourg

Distribution map of Conyza canadensis (L.) Cronquist in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.26.

The species was first documented in Luxembourg by Léopold Reichling on 8th August 1952 in Manzenbaach, Municipality of Larochette. Since then, almost 200 observations have been recorded, especially in the central area of Luxembourg, while the north of the country is populated much more sparsely.

C. canadensis is considered a weed and is associated mostly with perennial crops, fallows and field borders. It also occurs on roadsides and appears as an early successional species on recently disturbed land. The species has a high spreading capacity due to its ability to adapt to different environments combined with high reproductive potential and high seed mobility.

Risk assessment

ISEIA protocol: C3 (3+2+2+1) (Ries et al. 2013: 18).

Bibliography concerning Luxembourg

  • 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]

Suggested citation of this webpage

Ries, C. & M. Pfeiffenschneider (Eds.), 2019. Conyza canadensis (L.) Cronquist. In: - Invasive Alien Species in Luxembourg. URL: [26.08.2019].

 Last updated on Monday, April 9, 2018.