This name is a synonym of Allium fraseri (Ownbey) Shinners.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295225) with original publication details: Res. Stud. State Coll. Wash. 18: 195 1951.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:8711-2.
This name was in version 1 of The Plant List, record kew-295225, and has not been changed.