This name is a synonym of Saxifraga hirculus subsp. alpina (Engl.) Á.Löve.
The record derives from WCSP (in review)
(data supplied on 2012-03-26)
which reports it as a synonym with original publication details: Bot. J. Linn. Soc. 109: 388 1992.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:965857-1.
This name was in version 1 of The Plant List, record kew-2583514, and has not been changed.