This name is a synonym of Allium senescens subsp. glaucum (Regel) Dostál.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 310862) with original publication details: Trudy Imp. S.-Peterburgsk. Bot. Sada 3(2): 139 1875.
This name was in version 1 of The Plant List, record kew-310862, and has not been changed.