Species Detail - Himalayan Knotweed (Persicaria wallichii) - Species information displayed is based on the dataset "The Flora of County Waterford".
Terrestrial Map - 10km
Terrestrial Map - 10km
Distribution of the number of records recorded within each 10km grid square (ITM).Marine Map - 50km
Marine Map - 50km
Distribution of the number of records recorded within each 50km grid square (WGS84)._0.jpg)
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Persicaria wallichii
Himalayan Knotweed
Aconogonon polystachyum, Aconogonum polystachyum, Persicaria polystachya non Opiz, Persicaria polystachya non Opiz, Pleuropteropyrum polystachyum, Polygonum polystachyum, Rubrivena polystachya
Invasive Species: Invasive Species || Invasive Species: Invasive Species >> Medium Impact Invasive Species || Invasive Species: Invasive Species >> Regulation S.I. 477 (Ireland)
pewal
Greuter & Burdet
flowering plant
Species
20
3
2
01/01/1950
22/03/2014
22 March (recorded in 2014)
25 November (recorded in 2013)
Paul R Green, The Flora of County Waterford, National Biodiversity Data Centre, Ireland, Himalayan Knotweed (Persicaria wallichii), accessed 10 May 2024, <https://maps.biodiversityireland.ie/Dataset/23/Species/29165>