This name is a synonym of Ericameria parryi var. howardii (Parry ex A.Gray) G.L.Nesom & G.I.Baird.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9EBFE5A7-DFFB-4704-B472-F6FC681B0C98) with original publication details: Phytologia 75 88 1993.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1190930-2.
This name was in version 1 of The Plant List, record gcc-71538.