This name is a synonym of Linum austriacum subsp. glaucescens (Boiss.) P.H.Davis.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Notes Roy. Bot. Gard. Edinburgh 22: 139 1957.
This name was in version 1 of The Plant List, record kew-2873568, and has not been changed.