Species Detail - Himalayan Knotweed (Persicaria wallichii) - Species information displayed is based on all datasets.
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).
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)
Greuter & Burdet
22 March (recorded in 2014)
25 November (recorded in 2013)
National Biodiversity Data Centre, Ireland, Himalayan Knotweed (Persicaria wallichii), accessed 22 April 2018, <https://maps.biodiversityireland.ie/Species/29165>