This name is a synonym of Hesperis matronalis subsp. voronovii (N.Busch) P.W.Ball.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100360631) with original publication details: Fl. URSS 8: 246. 1939.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:285093-1.
This name was in version 1 of The Plant List, record tro-100360631, and has not been changed.