This name is a synonym of Allium fimbriatum var. denticulatum Ownbey & Aase ex Traub.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 295425) with original publication details: Aliso 13: 414 1992.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1079799-2.
This name was in version 1 of The Plant List, record kew-295425.