• Persicaria (Linnaeus) P. Miller, 1754
• Persicaria acuminata (Kunth) G. Maza accepted as Polygonum acuminatum Kunth
• Persicaria amphibia (L.) S.F. Gray p.p. accepted as Polygonum amphibium Linnaeus
• Persicaria bicornis (Raf.) Nieuwl. accepted as Polygonum pensylvanicum Linnaeus
• Persicaria bistortoides (Pursh) H. Hinds accepted as Polygonum bistortoides Pursh
• Persicaria bungeana (Turcz.) Nakai ex T. Mori accepted as Polygonum bungeanum Turcz.
• Persicaria capitata (Buch.-Ham. ex D. Don) Gross. accepted as Polygonum capitatum Buch.-Ham. ex D. Don
• Persicaria careyi (Olney) Greene accepted as Polygonum careyi Olney
• Persicaria coccinea (Muhl. ex Willd.) Greene accepted as Polygonum amphibium Linnaeus
• Persicaria densiflora (Meisn.) Moldenke accepted as Polygonum densiflorum Meisn.
• Persicaria hirsuta (Walt.) Small accepted as Polygonum hirsutum Walt.
• Persicaria hydropiper (L.) Opiz accepted as Polygonum hydropiper Linnaeus
• Persicaria hydropiperoides (Michx.) Small accepted as Polygonum hydropiperoides Michx.
• Persicaria incarnata (Ell.) Small accepted as Polygonum lapathifolium Linnaeus
• Persicaria lapathifolia (L.) S.F. Gray accepted as Polygonum lapathifolium Linnaeus
• Persicaria longiseta (de Bruyn) Moldenke accepted as Polygonum caespitosum Blume
• Persicaria longistyla (Small) Small accepted as Polygonum pensylvanicum Linnaeus
• Persicaria maculata (Raf.) S.F. Gray accepted as Polygonum persicaria Linnaeus
• Persicaria mesochora Greene accepted as Polygonum amphibium Linnaeus
• Persicaria mississippiensis (Stanford) Small accepted as Polygonum pensylvanicum Linnaeus
• Persicaria muehlenbergii (S. Wats.) Small accepted as Polygonum amphibium Linnaeus
• Persicaria nebraskensis Greene accepted as Polygonum amphibium Linnaeus
• Persicaria opelousana (Riddell ex Small) Small accepted as Polygonum hydropiperoides Michx.
• Persicaria orientalis (L.) Spach accepted as Polygonum orientale Linnaeus
• Persicaria paludicola Small accepted as Polygonum hydropiperoides Michx.
• Persicaria pensylvanica (L.) G. Maza accepted as Polygonum pensylvanicum Linnaeus
• Persicaria persicaria (L.) Small accepted as Polygonum persicaria Linnaeus
• Persicaria persicarioides (Kunth) Small accepted as Polygonum hydropiperoides Michx.
• Persicaria portoricensis (Bertero ex Small) Small accepted as Polygonum densiflorum Meisn.
• Persicaria punctata (Ell.) Small accepted as Polygonum punctatum Ell.
• Persicaria robustior (Small) Bickn. accepted as Polygonum robustius (Small) Fern.
• Persicaria ruderalis (Salisb.) C.F. Reed accepted as Polygonum persicaria Linnaeus
• Persicaria segeta (Kunth) Small accepted as Polygonum segetum Kunth
• Persicaria setacea (Baldw.) Small accepted as Polygonum setaceum Baldw.
• Persicaria tomentosa (Schrank) Bickn. accepted as Polygonum lapathifolium Linnaeus
• Persicaria virginiana (L.) Gaertn. accepted as Polygonum virginianum Linnaeus
• Persicaria vulgaris Webb & Moq. accepted as Polygonum persicaria Linnaeus