This name is a synonym of Ericameria nauseosa var. hololeuca (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 8A69C4EC-E365-42FD-97BC-05CE8B087F53) with original publication details: 211 1923.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1009944-2.
This name was in version 1 of The Plant List, record gcc-3140, and has not been changed.