Species Detail - Knotgrass (Polygonum aviculare) - Species information displayed is based on the dataset "Ireland's BioBlitz".

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
Polygonum aviculare
Knotgrass
Polygonum aviculare sens.str., Polygonum aviculare var. heterophyllum, Polygonum heterophyllum nom. illegit., Polygonum littorale sensu Gren. & Godr. et auct., non Link ex Pers.
N/A
poavi
L.
flowering plant
Species
14
7
7
20/05/2011
20/08/2022
1 January (recorded in 1970)
8 December (recorded in 2005)
Collated by the National Biodiversity Data Centre from different sources, Ireland's BioBlitz, National Biodiversity Data Centre, Ireland, Knotgrass (Polygonum aviculare), accessed 22 February 2025, <https://maps.biodiversityireland.ie/Dataset/189/Species/39373>

Records per month (across all datasets)

Records per year (across all datasets)