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 (record 294930) with original publication details: Arch. Bot. (Leipzig) 1(3): 40 1798.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:527544-1.
This name was in version 1 of The Plant List, record kew-294930, and has not been changed.