Species Detail - Nodding Bur-marigold (Bidens cernua) - Species information displayed is based on the dataset "The Flora of County Waterford".
Terrestrial Map - 10kmDistribution of the number of records recorded within each 10km grid square (ITM).
Marine Map - 50kmDistribution of the number of records recorded within each 50km grid square (WGS84).
11 May (recorded in 2009)
3 November (recorded in 1989)
Paul R Green, The Flora of County Waterford, National Biodiversity Data Centre, Ireland, Nodding Bur-marigold (Bidens cernua), accessed 30 March 2020, <https://maps.biodiversityireland.ie/Dataset/23/Species/29593>