This name is a synonym of Allium cernuum Roth.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 296123) with original publication details: Syst. Veg. 7: 1088 1830.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:528504-1.
This name was in version 1 of The Plant List, record kew-296123, and has not been changed.