This name is a synonym of Allium pendulinum Ten..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 294945) with original publication details: Syst. Veg. 2: 38 1825.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:527556-1.
This name was in version 1 of The Plant List, record kew-294945, and has not been changed.