Species Detail - Canadian Waterweed (Elodea canadensis) - Species information displayed is based on the dataset "Vascular plants: Online Atlas of Vascular Plants 2012 Onwards".
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
28
23
21
01/03/2002
09/02/2023
1 January (recorded in 2004)
15 December (recorded in 2021)
Collated by the National Biodiversity Data Centre from different sources, Vascular plants: Online Atlas of Vascular Plants 2012 Onwards, National Biodiversity Data Centre, Ireland, Canadian Waterweed (Elodea canadensis), accessed 31 August 2025, <https://maps.biodiversityireland.ie/Dataset/409/Species/41362>