[Wikipedia] Taxonomy: Rubber rabbitbrush was moved from the genus Chrysothamnus to the genus Ericameria in a 1993 paper.[2] The findings of a 2003 phylogenetic investigation of Ericameria were consistent with the move of the species to Ericameria.[8] The second edition of the Jepson plant manual[9] and the United States Department of Agriculture's Germplasm Resources Information Network[10] have adopted the name Ericameria nauseosa. The specific epithet means 'heavy scented'. (link added by Mary Ann Machi)