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Polygonum bellardii

Narrowleaf knotweed

Persicaria posumbu

Persicaria meisneriana

Reynoutria japonica

Japanese knotweed

Polygonum bolanderi

Persicaria bungeana

Polygonum sawatchense

Polygonum spergulariiforme

Polygonum aviculare var. erectum

Persicaria hydropiperoides var. euronotora

Polygonum pensylvanicum subsp. oneillii

Persicaria meisneriana var. beyrichiana

Potamogeton curtissii

Persicaria lapathifolia

Pale knotweed

Persicaria minor

Small water-pepper

Persicaria nepalensis

Nepalese smartweed

Polygonum graminifolium

Polygonum oxyspermum subsp. oxyspermum

Persicaria robustior

Persicaria segeta