This name is a synonym of Achillea clusiana Tausch.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record BAFB8BCD-F913-4D02-9952-D06C0353905E).
This name record (from TICA) 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 Achillea clusiana in version 1 of The Plant List.