This name is a synonym of Allium wallichii var. platyphyllum (Diels) J.M.Xu.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 296301) with original publication details: Notes Roy. Bot. Gard. Edinburgh 5: 300 1912.
This name was in version 1 of The Plant List, record kew-296301.