This name is a synonym of Allium fimbriatum S.Watson.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295555) with original publication details: Fl. Calif. 1: 273 1922.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:8759-2.
This name was in version 1 of The Plant List, record kew-295555.