Species Detail - Knotgrass (Polygonum aviculare) - Species information displayed is based on the dataset "The Flora of County Waterford".

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
709
37
9
29/05/1897
02/10/2012
1 January (recorded in 1970)
8 December (recorded in 2005)
Paul R Green, The Flora of County Waterford, National Biodiversity Data Centre, Ireland, Knotgrass (Polygonum aviculare), accessed 14 August 2020, <https://maps.biodiversityireland.ie/Dataset/23/Species/39373>

Records per month (across all datasets)

Records per year (across all datasets)