Epilobium ciliatum Raf.

English American willowherb ISEIA: B3 – Watch List
Lëtzebuergesch Drüse-Weideréischen EASIN
Français Épilobe à tige glanduleuse Wikipedia: Wikipedia - English - American willowherb Wikipedia - Deutsch - Drüsiges Weidenröschen Wikipedia - Nederlands - Beklierde basterdwederik
Deutsch Drüsiges Weidenröschen Wikispecies: Wikispecies - Epilobium ciliatum
Nederlands Beklierde basterdwederik Back to the list of neophytes

Report the species

Report Epilobium ciliatum to the National Museum of Natural History.

Importance and distribution in Luxembourg

Distribution map of Epilobium ciliatum Raf. in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

The first documented observation of American willowherb in Luxembourg dates from 1950. It was found on 19th July 1950 in Bridel, municipality of Kopstal (Reichling 1961). Currently, 683 observations of the species can be found in the Recorder database (11/01/2018). The plant occurs in every region of the country, but with a clear concentration in the northern area.

American willowherb is a pioneer plant species that thrives mainly in man-made environments such as arable lands, gardens, tree nurseries, clearcuts and ruderal areas. It may also become established in open riparian habitats. Its seeds are adapted to wind dispersion and have a high germination rate. It is one of the arable weed species with the highest rate of increase in Europe (Source: http://ias.biodiversity.be/species/show/8).

Risk assessment

ISEIA protocol: B3 (3+3+2+1) = Watch List (Ries et al. 2013: 18).

Bibliography concerning Luxembourg

  • Reichling, L., 1961. Notes floristiques 1957-1958. Bull. Soc. Nat. luxemb. 63: 19-99. [PDF 4612 KB]
  • 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. Epilobium ciliatum Raf. In: neobiota.lu - Invasive Alien Species in Luxembourg. URL: https://neobiota.lu/epilobium-ciliatum/ [21.08.2019].

 Last updated on Monday, May 28, 2018.