• Ranunculus Linnaeus, 1753
• Ranunculus abortivus Linnaeus
• Ranunculus acriformis Gray
• Ranunculus acris Linnaeus
• Ranunculus adoneus Gray
• Ranunculus aestivalis (L. Benson) Van Buren & Harper
• Ranunculus affinis R. Br. accepted as Ranunculus pedatifidus Sm.
• Ranunculus alismifolius Geyer ex Benth.
• Ranunculus allegheniensis Britt.
• Ranunculus allenii B.L. Robins.
• Ranunculus alpeophilus A. Nels. accepted as Ranunculus inamoenus Greene
• Ranunculus alveolatus Carter accepted as Ranunculus bonariensis Poir.
• Ranunculus ambigens S. Wats.
• Ranunculus amphibius James accepted as Ranunculus longirostris Godr.
• Ranunculus andersonii Gray
• Ranunculus aquatilis L.
• Ranunculus arizonicus J.G. Lemmon ex Gray
• Ranunculus arvensis Linnaeus
• Ranunculus auricomus Linnaeus
• Ranunculus austrooreganus L. Benson
• Ranunculus baudotii Godr.
• Ranunculus bloomeri S. Wats. accepted as Ranunculus orthorhynchus Hook.
• Ranunculus bonariensis Poir.
• Ranunculus bongardii Greene accepted as Ranunculus uncinatus D. Don ex G. Don
• Ranunculus boreanus Jord. accepted as Ranunculus acris Linnaeus
• Ranunculus bulbosus Linnaeus
• Ranunculus californicus Benth.
• Ranunculus canus Benth.
• Ranunculus cardiophyllus Hook.
• Ranunculus caricetorum Greene accepted as Ranunculus hispidus Michx.
• Ranunculus carolinianus DC. accepted as Ranunculus hispidus Michx.
• Ranunculus chamissonis Schlecht. accepted as Ranunculus glacialis Linnaeus
• Ranunculus circinatus auct. non Sibthorp accepted as Ranunculus longirostris Godr.
• Ranunculus codyanus Boivin accepted as Ranunculus trichophyllus Chaix
• Ranunculus coloradensis (L. Benson) L. Benson
• Ranunculus confervoides (Fries) Fries accepted as Ranunculus trichophyllus Chaix
• Ranunculus cooleyae Vasey & Rose accepted as Kumlienia cooleyae (Vasey & Rose) Greene
• Ranunculus cordiger Viviani
• Ranunculus cymbalaria Pursh
• Ranunculus delphiniifolius Torr. ex Eat. accepted as Ranunculus flabellaris Raf.
• Ranunculus earlei Greene accepted as Ranunculus uncinatus D. Don ex G. Don
• Ranunculus eastwoodianus L. Benson
• Ranunculus eisenii Kellogg accepted as Ranunculus occidentalis Nutt.
• Ranunculus ellipticus Greene accepted as Ranunculus glaberrimus Hook.
• Ranunculus eschscholtzii Schlecht.
• Ranunculus eximius Greene
• Ranunculus falcatus auct. non L. accepted as Ceratocephala testiculata (Crantz) Bess.
• Ranunculus fascicularis Muhl. ex Bigelow
• Ranunculus fasciculatus Sessé & Mociño accepted as Ranunculus petiolaris Kunth ex DC.
• Ranunculus ficaria Linnaeus
• Ranunculus filiformis Michx. accepted as Ranunculus flammula Linnaeus
• Ranunculus flabellaris Raf.
• Ranunculus flaccidus Pers. accepted as Ranunculus trichophyllus Chaix
• Ranunculus flammula Linnaeus
• Ranunculus gelidus Kar. & Kir. accepted as Ranunculus karelinii Czern.
• Ranunculus glaberrimus Hook.
• Ranunculus glacialis Linnaeus
• Ranunculus gmelini De Candolle
• Ranunculus gmelinii DC.
• Ranunculus gormanii Greene
• Ranunculus grandis Honda accepted as Ranunculus acris Linnaeus
• Ranunculus grayi Britt. accepted as Ranunculus karelinii Czern.
• Ranunculus hartwegii Greene accepted as Ranunculus alismifolius Geyer ex Benth.
• Ranunculus harveyi (Gray) Britt.
• Ranunculus hawaiensis Gray
• Ranunculus hebecarpus Hook. & Arn.
• Ranunculus hederaceus Linnaeus
• Ranunculus heimburgerae T.C. Brayshaw
• Ranunculus hexasepalus (L. Benson) L. Benson
• Ranunculus hispidus Michx.
• Ranunculus howellii Greene accepted as Ranunculus occidentalis Nutt.
• Ranunculus hydrocharoides Gray
• Ranunculus hyperboreus Rottb.
• Ranunculus hystriculus Gray accepted as Kumlienia hystricula (Gray) Greene
• Ranunculus inamoenus Greene
• Ranunculus intertextus Greene accepted as Ranunculus hyperboreus Rottb.
• Ranunculus jovis A. Nels.
• Ranunculus juniperinus M.E. Jones accepted as Ranunculus andersonii Gray
• Ranunculus kamchaticus DC.
• Ranunculus kamtschaticus De Candolle
• Ranunculus karelinii Czern.
• Ranunculus lapponicus Linnaeus
• Ranunculus latent virus
• Ranunculus laxicaulis (Torr. & Gray) Darby
• Ranunculus leaf distortion virus
• Ranunculus lemmonii Gray accepted as Ranunculus alismifolius Geyer ex Benth.
• Ranunculus limosus Nutt. accepted as Ranunculus gmelinii DC.
• Ranunculus lindheimeri Engelm. accepted as Ranunculus pusillus Poir.
• Ranunculus lobbii (Hiern.) Gray
• Ranunculus longirostris Godr.
• Ranunculus ludovicianus Greene accepted as Ranunculus canus Benth.
• Ranunculus macauleyi Gray
• Ranunculus macounii Britt.
• Ranunculus macranthus Scheele
• Ranunculus marginatus d'Urv.
• Ranunculus mauiensis Gray
• Ranunculus micranthus Nutt.
• Ranunculus mild mosaic virus
• Ranunculus mississippiensis Small accepted as Ranunculus laxicaulis (Torr. & Gray) Darby
• Ranunculus mosaic virus