Elodea nuttallii (Planch.) H. St. John

English Nuttall’s Waterweed ISEIA: A3 – Black List. IAS of EU concern.
Lëtzebuergesch Schmuel Waasserpescht EASIN
Français Elodée de Nuttall Wikipedia: Wikipedia - English - Nuttall's Waterweed Wikipedia - Français - Elodée de Nuttall Wikipedia - Deutsch - Schmalblättrige Wasserpest
Deutsch Schmalblättrige Wasserpest Wikispecies: Wikispecies - Elodea nuttallii
Nederlands Smalle waterpest Back to the list of neophytes

Report the species

Report Elodea nuttallii to the National Museum of Natural History.

Importance and distribution in Luxembourg

Distribution map of Elodea nuttallii (Planch.) H. St. John in Luxembourg. Recorder-LUX & iNaturalist, 2019.08.21.

The species has been first documented by Paul Verheggen in the Upper Sûre Lake near Boulaide in 1975 (Parent 1983 cit. in Diederich 1984). It is much less common than E. canadensis. 49 occurences are documented in the Recorder database (11/01/2018).

Elodea nuttallii, or Nuttall’s waterweed, is an aquatic plant that thrives in a variety of freshwater habitats, from still to slow-flowing systems and from very shallow to deep waters. It is highly tolerant to water pollution and prefers warm, eutrophic and calcareous waters. This submerged perennial makes dense monospecific populations which often colonize whole water bodies, restrict water movement, cut off light, produce anoxic conditions and trap sediments in the system.Due to its quick nutrient uptake and very high growth rate, the species has been reported to outcompete several native aquatic plants (Source: http://ias.biodiversity.be/species/show/57).

Risk assessment

ISEIA protocol: A3 (3+3+3+3) = Black List (Ries et al. 2013: 18).

Bibliography concerning Luxembourg

  • Diederich, P., 1984. Les monocotylédones aquatiques (excl. Potamogeton s.l.) du Grand-Duché de Luxembourg. Dumortiera 29-30: 34-41. [PDF 5 MB].
  • Parent, G. H., 1983. Données floristiques inédites tirées de l’herbier du docteur Paul Verheggen. Dumortiera 25 : 12-21.
  • 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. Elodea nuttallii (Planch.) H. St. John. In: neobiota.lu - Invasive Alien Species in Luxembourg. URL: https://neobiota.lu/elodea-nuttallii/ [21.08.2019].

 Last updated on Friday, April 13, 2018.