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 275458) with original publication details: Syn. Mitteleur. Fl. 3: 36 1905.
This name was in version 1 of The Plant List, record kew-275458, and has not been changed.