Species Detail - Giant Knotweed (Fallopia sachalinensis) - Species information displayed is based on the dataset "BSBI tetrad data for Ireland".

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

Species image

Fallopia sachalinensis
Giant Knotweed
Polygonum sachalinense, Polygonum vivax nom. inval., Reynoutria sachalinensis, Reynoutria vivax, Reynoutria vivax
Invasive Species: Invasive Species || Invasive Species: Invasive Species >> High Impact Invasive Species || Invasive Species: Invasive Species >> Regulation S.I. 477 (Ireland)
fasac
(F. Schmidt) Ronse Decr.
flowering plant
Species
31
23
19
01/01/1970
31/12/2010
1 April (recorded in 2009)
1 December (recorded in 2017)
Botanical Society of the British Isles, BSBI tetrad data for Ireland, National Biodiversity Data Centre, Ireland, Giant Knotweed (Fallopia sachalinensis), accessed 04 April 2020, <https://maps.biodiversityireland.ie/Dataset/9/Species/41677>

Records per month (across all datasets)

Records per year (across all datasets)