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 275587) with original publication details: Bull. Soc. Bot. France 7: 732 1860.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:531544-1.
This name was in version 1 of The Plant List, record kew-275587, and has not been changed.