This name is a synonym of Achillea nobilis subsp. neilreichii (A.Kern.) Velen..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D871EEDA-09A0-4321-89EC-ACF9DED66529) with original publication details: Oesterr. Bot. Z. 21 141 1871.
This name was in version 1 of The Plant List, record gcc-108723.