Rhododendron calostrotum subsp. calostrotum
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.98
  • Balfour, I.B. & G. Forrest 1920. Rhododendron. Diagnoses Specierum Novarum. in Notes from the Royal Botanic Garden Edinburgh 13: 25-65, p.35, FlagO