Rhododendron degronianum subsp. heptamerum (Maxim.) H.Hara
Synonym(s):
Azalea japonica Blume
Rhododendron japonicum (Blume) C.K.Schneid.
Rhododendron hymenanthes (Blume) Makino
Rhododendron japonoheptamerum Kitam.
Rhododendron maximum Thunb., non L.
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.113
  • Bean, W.J. 1976. Trees and shrubs hardy in the British Isles: Vol.3 (N-Rh). Murray 973 pp. Illus., p.645, FlagO
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