Rhododendron praestans Balf.f. & W.W.Sm.
Rhododendron coryphaeum Balf.f. & Forrest
Rhododendron semnum Balf.f. & Forrest
Data source(s):
  • 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.165
  • Balfour, I.B. 1916. New species of Rhododendron. in Notes from the Royal Botanic Garden Edinburgh 9(44-45): 207-320 p.263