This name is a synonym of Artemisia norvegica subsp. saxatilis (Besser) H.M.Hall & Clem..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 21BB6D54-BDE8-42C4-AED8-B84FFBC1FA92) with original publication details: N. Amer. Fl. 34 263 1916.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:20590-2.
This name was in version 1 of The Plant List, record gcc-113745.