This name is a synonym of Veratrum maackii var. parviflorum (Maxim. ex Miq.) H.Hara.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 310489) with original publication details: Arch. Néerl. Sci. Exact. Nat. 5: 90 1870.
This name was in version 1 of The Plant List, record kew-310489, and has not been changed.