Rhododendron kaempferi

Rhododendron kaempferi
Flowers
In a park
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Rhododendron
Species:
R. kaempferi
Binomial name
Rhododendron kaempferi
Synonyms[1]
List
    • Azalea indica var. kaempferi (Planch.) Rehder
    • Azalea kaempferi (Planch.) André
    • Rhododendron indicum var. kaempferi (Planch.) Maxim.
    • Rhododendron indicum var. mikawanum Makino
    • Rhododendron iyoense Nakai
    • Rhododendron kaempferi var. komatsui Nakai
    • Rhododendron kaempferi f. kozushimense T.Yamaz.
    • Rhododendron lusidusculum Nakai
    • Rhododendron macrogemmum (Nakai) Nakai
    • Rhododendron obtusum f. album Nakai
    • Rhododendron obtusum var. kaempferi (Planch.) E.H.Wilson
    • Rhododendron obtusum f. komatsui (Nakai) H.Hara
    • Rhododendron obtusum var. macrogemma (Nakai) Kitam.
    • Rhododendron obtusum var. mikawanum (Makino) T.Yamaz.
    • Rhododendron obtusum var. saikaiense T.Yamaz.
    • Rhododendron obtusum var. tubiflorum (Komatsu) T.Yamaz.
    • Rhododendron obtusum f. tubiflorum (Komatsu) Makino
    • Rhododendron scabrum var. kaempferi (Planch.) Nakai
    • Rhododendron sieboldii Miq.

Rhododendron kaempferi, the torch azalea or Kaempferi azalea, is a species of flowering plant in the family Ericaceae.[2][3] It is native to Japan.[1] A semi-evergreen shrub, its 'Orange King' cultivar has gained the Royal Horticultural Society's Award of Garden Merit.[2][3] There are a number of other cultivars available with a variety of flower colors.[2]

Subtaxa

The following varieties are accepted:[1]

  • Rhododendron kaempferi var. iyoense (Nakai) Sugim.
  • Rhododendron kaempferi var. kaempferi – Honshu, Kyushu
  • Rhododendron kaempferi var. lusidusculum (Nakai) Sugim.
  • Rhododendron kaempferi var. macrogemmum Nakai – Izu Peninsula, Izu Islands
  • Rhododendron kaempferi var. mikawanum (Makino) Makino – Aichi Prefecture
  • Rhododendron kaempferi var. saikaiense (T.Yamaz.) T.Yamaz. – Kyushu
  • Rhododendron kaempferi var. tubiflorum Komatsu – western Honshu

References

  1. ^ a b c "Rhododendron kaempferi Planch". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 5 October 2025.
  2. ^ a b c "Rhododendron kaempferi Common Name(s): Kaempferi Azalea, Torch Azalea". North Carolina Extension Gardener Plant Toolbox. N.C. Cooperative Extension. 2025. Retrieved 5 October 2025.
  3. ^ a b "Rhododendron 'Orange King' (Kaempferi) (EA)". Find a plant. The Royal Horticultural Society. 2025. Retrieved 5 October 2025. 9 suppliers
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