Species Detail - Marsh Ragwort (Jacobaea aquatica) - 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
Jacobaea aquatica
Marsh Ragwort
NHMSYS0021241532 RecommendedWell-formed
N/A
N/A
(Hill) G.Gaertn., B.Mey. & Scherb.
Flowering plant
Species
80
28
17
05/07/2007
14/08/2019
1 January (recorded in 1988)
13 December (recorded in 2010)
Environmental Protection Agency, Water Framework Directive Lake Macrophyte Status Survey Data 2007 to 2019, National Biodiversity Data Centre, Ireland, Marsh Ragwort (Jacobaea aquatica), accessed 13 June 2025, <https://maps.biodiversityireland.ie/Dataset/365/Species/304881>

Records per month (across all datasets)

Records per year (across all datasets)