Rhododendron cowanianum Davidian
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.109
  • Davidian, H.H. 1952. New rhododendrons from Nepal. in Notes from the Royal Botanic Garden Edinburgh 21: 99-100, p.99, FlagO