This name is a synonym of Potentilla arguta subsp. convallaria (Rydb.) D.D.Keck.
The record derives from RJP
(data supplied on 2011-10-18)
which reports it as a synonym (record 3846) with original publication details: ; 1908 134 1908.
This name record (from RJP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Potentilla arguta in version 1 of The Plant List.