This name is a synonym of Allium wallichii var. platyphyllum (Diels) J.M.Xu.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50061911) with original publication details: Notes Roy. Bot. Gard. Edinburgh : 300 1912.
This name was in version 1 of The Plant List, record tro-50061911.