European knotweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Caryophyllales
- family: Polygonaceae
- genus: Polygonum
- species: Polygonum arenarium
Brussels
Brussels Capital
BelgiumErythrés
AtticaAsproválta
Náousa
Central MacedoniaIgoumenítsa
Kompóti
Pediní
Rodotópion
EpirusGargaliánoi
Skála
PeloponneseKastrákion
ThessalyKalávryta
Kamárai
Selianítika
Thérmo
West Greece
Greece