Species Detail - Canadian Waterweed (Elodea canadensis) - Species information displayed is based on the dataset "Water Framework Directive Lake Macrophyte Status Survey Data 2007 to 2019".
Terrestrial Map - 10km
Terrestrial Map - 10km
Distribution of the number of records recorded within each 10km grid square (ITM).Marine Map - 50km
Marine Map - 50km
Distribution of the number of records recorded within each 50km grid square (WGS84).Species image
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Elodea canadensis
Canadian Waterweed
NHMSYS0000458325
RecommendedWell-formed
Anacharis alsinastrum Bab., Anacharis canadensis (Michx.) Planch., Canadian Pondweed , Elodea canadensis Michaux
Invasive Species: Regulation S.I. 477/2011 (Ireland) || Invasive Species: High Risk Invasive Species (2013 Report) || Invasive Species: The Wildlife (Northern Ireland) Order 1985
elcan
Michx.
Flowering plant
Species
3625
121
46
03/07/2007
28/08/2019
1 January (recorded in 2004)
15 December (recorded in 2021)
Environmental Protection Agency, Water Framework Directive Lake Macrophyte Status Survey Data 2007 to 2019, National Biodiversity Data Centre, Ireland, Canadian Waterweed (Elodea canadensis), accessed 31 August 2025, <https://maps.biodiversityireland.ie/Dataset/365/Species/41362>