Aster lanceolatus Willd.

English Narrow-leaved Michaelmas-daisy ISEIA: C1
Lëtzebuergesch Schmuelbliedreg Aster EASIN
Français Aster à feuilles lancéolées Wikipedia: Wikipedia - English - Narrow-leaved Michaelmas-daisy Wikipedia - Français - Aster à feuilles lancéolées Wikipedia - Deutsch - Lanzettblättrige Aster
Deutsch Lanzettblättrige Aster Wikispecies: Wikispecies - Aster lanceolatus / Symphyotrichum lanceolatum
Nederlands Smalle Aster Back to the list of neophytes

Report the species

Report Aster lanceolatus to the National Museum of Natural History.

Importance and distribution in Luxembourg

Distribution map of Aster lanceolatus Willd. in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.26.

The first documented occurrence of the species in Luxembourg dates from 1993. It was found on 9th August 1993 at Wintrange, Municipality of Schengen (Schmidt 1993). 11 observations located in the Moselle and Lower Sûre valleys and in the south-west of the country close to the French border are found in the Recorder database (08/01/2018).

The narrow-leaved Michaelmas-daisy thrives both in ruderal and riparian areas, especially on rich and moist to humid soils. Commonly planted in gardens, it then gets propagated through fly-tipping of green waste. Seed development depends on climatic conditions. Asters are rhizomatous species, and can propagate clonally. They easily form dense and wide monospecific colonies displacing native wetland plants, favouring sedimentation and stabilization of riverbanks which reduces the ability of rivers to meander and flood (Source:

Risk assessment

ISEIA protocol: C1 (2+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]
  • Schmidt, G., 1993. Fiches de terrain, cartographie des biotopes de la commune de Remerschen. Fondation Oeko-Fonds, Luxembourg. Non published document.

Suggested citation of this webpage

Ries, C. & M. Pfeiffenschneider (Eds.), 2019. Aster lanceolatus Willd. In: - Invasive Alien Species in Luxembourg. URL: [26.08.2019].

 Last updated on Monday, April 9, 2018.