Species Detail - Knotgrass (Polygonum aviculare) - Species information displayed is based on the dataset "BSBI tetrad data for Ireland".
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).
Polygonum aviculare sens.str., Polygonum aviculare var. heterophyllum, Polygonum heterophyllum nom. illegit., Polygonum littorale sensu Gren. & Godr. et auct., non Link ex Pers.
1 January (recorded in 1970)
8 December (recorded in 2005)
Botanical Society of the British Isles, BSBI tetrad data for Ireland, National Biodiversity Data Centre, Ireland, Knotgrass (Polygonum aviculare), accessed 27 May 2020, <https://maps.biodiversityireland.ie/Dataset/9/Species/39373>