This name is a synonym of Asphodelus albus subsp. delphinensis (Gren. & Godr.) Z.Díaz & Valdés.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 275472) with original publication details: Consp. Fl. Eur. 720 1882.
This name was in version 1 of The Plant List, record kew-275472, and has not been changed.