This name is a synonym of Allium potosiense Traub.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an invalid name (record 296727) with original publication details: Pl. Life 24: 141 1968.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:528949-1.
This name was in version 1 of The Plant List, record kew-296727.