This name is a synonym of Rosa spinosissima L..
The record derives from RJP
(data supplied on 2011-10-18)
which reports it as a synonym (record 38) with original publication details: Systema naturae Systema naturae; 1759 1062 1759.
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 Rosa pimpinellifolia in version 1 of The Plant List.