Rhododendron arizelum Balf.f. & Forrest
Rhododendron rex H.Lév. ssp. arizelum (Balf.f. & Forrest) D.F.Chamb.
Rhododendron arizelum Balf.f & Forrest var. rubicosum Cowan & Davidian
Rhododendron angelum Balf.f. & Forrest
Data source(s):
  • Balfour, I.B. 1920. New Species of Rhododendron. in Notes from the Royal Botanic Garden Edinburgh 12: 85-186 p.90
  • Argent, C.G.C., J. Bond, D.F. Chamberlain, P. Cox & A. Hardy 1997. The Rhododendron Handbook. The Royal Horticultural Society 352, t.16 pp. p.90