Species Detail - Esthwaite Waterweed (Hydrilla verticillata) - Species information displayed is based on the dataset "Water Framework Directive Lake Macrophyte Status Survey Data 2007 to 2019".

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map
Hydrilla verticillata
Esthwaite Waterweed
Elodea nuttallii auct., non (Planch.) H. St. John, Serpicula verticillata, Serpicula verticillata
Protected Species: Flora Protection Order || Protected Species: Flora Protection Order >> Flora Protection Order || Threatened Species: Endangered
hyver
(L. f.) Royle
flowering plant
Species
15
1
1
18/07/2016
18/07/2016
19 May (recorded in 2004)
16 August (recorded in 2006)
Environmental Protection Agency, Water Framework Directive Lake Macrophyte Status Survey Data 2007 to 2019, National Biodiversity Data Centre, Ireland, Esthwaite Waterweed (Hydrilla verticillata), accessed 22 February 2025, <https://maps.biodiversityireland.ie/Dataset/365/Species/42557>

Records per month (across all datasets)

Records per year (across all datasets)