This name is a synonym of Artemisia campestris subsp. pacifica (Nutt.) H.M.Hall & Clem..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record BD00D998-CC66-47DC-800C-9C716756AF06) with original publication details: N. Amer. Fl. 34 254 1916.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:20562-2.
This name was in version 1 of The Plant List, record gcc-101281.