Rhododendron degronianum Carrière ssp. heptamerum (Maxim.) H.Hara var. heptamerum (Maxim.) Sealy
Synonym(s):
Hymenanthes japonica Blume
Rhododendron metternichii Siebold & Zucc.
Rhododendron metternichii Siebold & Zucc. var. heptamerum Maxim.
Rhododendron japonicum (Blume) C.K.Schneid.
Rhododendron hymenanthes (Blume) Makino
Rhododendron metternichii Siebold & Zucc. var. micranthum Nakai
Rhododendron japonoheptamerum Kitam.
Rhododendron metternichii Siebold & Zucc. forma latifolium Sugim.
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