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519 knotweed family species
Rumex verticillatus
Polygonum douglasii
Eriogonum strictum
Eriogonum caespitosum
Polygonum achoreum
Eriogonum douglasii
Eriogonum microtheca
Persicaria perfoliata
Koenigia alaskana
Polygonum tenue
Reynoutria compacta
Fagopyrum esculentum
Persicaria minor
Polygonum polygaloides
Koenigia phytolaccifolia
Rumex lapponicus
Eriogonum annuum
Rumex acetosa
Eriogonum vimineum
Bistorta officinalis
Polygonum minimum
Persicaria careyi
Eriogonum marifolium
Polygonum spergulariiforme
Persicaria nepalensis
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