We discuss the typification and nomenclature of the name Rhododendron xintermedium (Ericaceae). As the name R. xintermedium Wenderoth is invalid, the earliest legitimate name for R. ferrugineum x R. hirsutum hybrid is the name published by Tausch.
We designate one collection from PRC as the lectotype and two other specimens from PRC are considered to be a part of the original material. A list of R. xintermedium synonyms is provided and two specimens from IBF are designated as the neotypes of two heterotypic synonyms, namely R. xhalense and R. xhirsutiformum.