Rhododendron uvariifolium var. griseum Cowan
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.196
  • Cowan, J.M. & H.H. Davidian 1953. Some New Rhododendrons. in Notes from the Royal Botanic Garden Edinburgh 21: 143-148, p.147, FlagO