Synonyms: Batrachium circinatum fucoides; Batrachium fucoides; Batrachium saniculifolium (heterotypic); Batrachium tenellum; Ranunculus aquatilis fucoides; Ranunculus aquatilis renifolius; Ranunculus aquatilis rhiphaeus; Ranunculus aquatilis saniculifolius (homotypic); Ranunculus aquatilis var. elegans; Ranunculus aquatilis var. pseudoleontinensis; Ranunculus aquatilis var. rhiphaeus; Ranunculus aquatilis var. saniculifolius (heterotypic); Ranunculus atlanticus (heterotypic); Ranunculus circinatus var. rodiei; Ranunculus fucoides; Ranunculus hololeucos; Ranunculus macranthus; Ranunculus peltatus saniculifolius (homotypic); Ranunculus peltatus var. rhiphaeus; Ranunculus pomelianus; Ranunculus revelierei rodiei; Ranunculus rodiei; Ranunculus rodiei var. illudens; Ranunculus saniculifolius (heterotypic); Ranunculus sphaerospermus var. rodiei; Ranunculus tenellus; Ranunculus vespertilio