• Claytonia Finks, Hollocher & Thies, 2011 † [Family: Plinthosellidae]
• Claytonia Linnaeus, 1753 [Family: Montiaceae]
• Claytonia acutifolia Pallas Ex J.A. Schultes
• Claytonia acutifolia Pallas ex J.A. Schultes
• Claytonia arctica M.F. Adams
• Claytonia arenicola Henderson
• Claytonia bellidifolia Rydb. accepted as Claytonia megarhiza (Gray) Parry ex S. Wats.
• Claytonia bostockii Porsild accepted as Montia bostockii (Porsild) Welsh
• Claytonia caroliniana Michx.
• Claytonia chamissoi Ledeb. ex Spreng. accepted as Montia chamissoi (Ledeb. ex Spreng.) Greene
• Claytonia chrysantha Greene accepted as Claytonia lanceolata Pall. ex Pursh
• Claytonia cordifolia S. Wats.
• Claytonia czukczorum Volk. accepted as Claytonia tuberosa Pallas ex J.A. Schultes
• Claytonia dichotoma Nutt. accepted as Montia dichotoma (Nutt.) T.J. Howell
• Claytonia diffusa Nutt. accepted as Montia diffusa (Nutt.) Greene
• Claytonia eschscholtzii Cham.
• Claytonia exigua Torr. & Gray
• Claytonia flagellaris Bong. accepted as Montia parvifolia (Moc. ex DC.) Greene
• Claytonia flava A. Nels. accepted as Claytonia lanceolata Pall. ex Pursh
• Claytonia fontana (L.) R.J. Davis accepted as Montia fontana Linnaeus
• Claytonia gypsophiloides Fisch. & C.A. Mey.
• Claytonia heterophylla (Torr. & Gray) Swanson
• Claytonia howellii (S. Wats.) Piper accepted as Montia howellii S. Wats.
• Claytonia lanceolata Pall. ex Pursh
• Claytonia linearis Dougl. ex Hook. accepted as Montia linearis (Dougl. ex Hook.) Greene
• Claytonia media (DC.) Link accepted as Claytonia virginica Linnaeus
• Claytonia megarhiza (Gray) Parry ex S. Wats.
• Claytonia nevadensis S. Wats.
• Claytonia nivalis English accepted as Claytonia megarhiza (Gray) Parry ex S. Wats.
• Claytonia ogilviensis McNeill
• Claytonia palustris Swanson & Kelley
• Claytonia parviflora Dougl. ex Hook.
• Claytonia parvifolia Moc. ex DC. accepted as Montia parvifolia (Moc. ex DC.) Greene
• Claytonia perfoliata Donn ex Willd.
• Claytonia porsildii Jurtzev accepted as Claytonia scammaniana Hultén
• Claytonia robusta (Somes) Rydb. accepted as Claytonia virginica Linnaeus
• Claytonia rosea Rydb.
• Claytonia rubra (T.J. Howell) Tidestrom
• Claytonia sarmentosa C.A. Mey.
• Claytonia saxosa Brandeg.
• Claytonia scammaniana Hultén
• Claytonia sibirica Linnaeus
• Claytonia simsii Sweet accepted as Claytonia virginica Linnaeus
• Claytonia spathulata Dougl. ex Hook.
• Claytonia spathulifolia Salisb. accepted as Claytonia caroliniana Michx.
• Claytonia triphylla S. Wats. accepted as Lewisia triphylla (S. Wats.) B.L. Robins.
• Claytonia tuberosa Pallas ex J.A. Schultes
• Claytonia umbellata S. Wats.
• Claytonia virginica Linnaeus
• Claytonia washingtoniana (Suksdorf) Suksdorf