This name is a synonym of Seseli elatum subsp. osseum (Crantz) P.W.Ball.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Magyar Bot. Lapok 6: 142 1907.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:848519-1.
This name was in version 1 of The Plant List, record kew-2479471.