This name is a synonym of Sanguisorba minor Scop..
The record derives from RJP
(data supplied on 2011-10-18)
which reports it as a synonym (record 49925) with original publication details: Manual da flora portugueza Manual da flora portugueza; 1909 318 1911.
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 Sanguisorba minor in version 1 of The Plant List.