Species Detail - Rigid Hornwort (Ceratophyllum demersum) - 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).
Ceratophyllum demersum
Rigid Hornwort
NBNSYS0000002761
UnverifiedUnverified
N/A
cedem
L.
flowering plant
Species
424
22
15
23/08/2007
23/07/2019
19 May (recorded in 2012)
16 October (recorded in 2008)
Environmental Protection Agency, Water Framework Directive Lake Macrophyte Status Survey Data 2007 to 2019, National Biodiversity Data Centre, Ireland, Rigid Hornwort (Ceratophyllum demersum), accessed 21 April 2025, <https://maps.biodiversityireland.ie/Dataset/365/Species/28475>