The genera "Horkelia" (horkelias) and "Ivesia" (mousetails) are sometimes included in "Potentilla" today. The mock-strawberries of "Duchesnea" have been included. Conversely, the shrubby plants previously included in this genus are now separated in the genus "Dasiphora", while some distinctive and apparently protocarnivorous herbaceous cinquefoils are placed in "Drymocallis". The marsh cinquefoil is now in the genus "Comarum", and the three-toothed cinquefoil makes up the monotypic genus "Sibbaldiopsis". As already proposed by John Hill in the 18th century, the silverweeds of genus "Argentina" may be distinct, but as the immediate sister genus of "Potentilla", its boundary is still unclear.