This name is a synonym of Allium macrostemon Bunge.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 296172) with original publication details: Bot. Mag. (Tokyo) 27: 215 1913.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:528550-1.
This name was in version 1 of The Plant List, record kew-296172, and has not been changed.