This name is a synonym of Allium fimbriatum var. purdyi (Eastw.) Ownbey ex McNeal.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 295562) with original publication details: Pl. Life 23: 110 1967.
This name was in version 1 of The Plant List, record kew-295562, and has not been changed.