Polygonum

Polygonum argyrocoleon

Polygonum bidwelliae

Bidwell knotweed

Polygonum californicum

Polygonum douglasii

Douglas's knotweed

Polygonum equisetiforme

Horsetail knotweed

Polygonum glaucum

Seaside knotweed

Polygonum minimum

Broadleaf knotweed

Polygonum oxyspermum

Strand-vogelknöterich

Polygonum patulum

Polygonum polygaloides

Polygala knotweed

Polygonum fimbriatum

Polygonum biaristatum

Polygonum valerii

Polygonum zakirovii

Polygonum oxyspermum subsp. roberti

Polygonum afyonicum

Polygonum aleppicum

Polygonum arussense

Polygonum balansae

Polygonum arenarium

European knotweed