Rhododendron javanicum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Rhododendron
Species:
R. javanicum
Binomial name
Rhododendron javanicum
Synonyms
  • Azalea javanica (Blume) Kuntze[1]
  • Rhododendron brookeanum Low ex Lindl. [2]
  • Vireya javanica Blume.[3]

Rhododendron javanicum is a rhododendron species native to Indonesia, Malaysia, and the Philippines.[4] This evergreen shrub grows to 5 m (16 ft) with bright orange flowers in spring. Plants may be terrestrial or epiphytic. Some forms from the Philippines may have red or bicoloured flowers, but are less often seen in cultivation.[5]

Subspecies

Nine subspecies are recognized:[1]

  • Rhododendron javanicum subsp. brookeanum (H.Low ex Lindl.) Argent & Phillipps – epiphytic shrub or tree, Borneo
  • Rhododendron javanicum subsp. cladotrichum (Sleumer) Argent – epiphytic shrub, Borneo (Sabah and east-central Kalimantan)
  • Rhododendron javanicum subsp. gracile (H.Low ex Lindl.) Argent, A.Lamb & Phillipps – epiphytic shrub, Borneo
  • Rhododendron javanicum subsp. javanicum – hemiepiphytic shrub or small tree, Sumatra, Java, Borneo, and the Lesser Sunda Islands
  • Rhododendron javanicum subsp. kinabaluense (Argent, A.Lamb & Phillipps) Argent – hemiepiphytic shrub, Borneo (Sabah)
  • Rhododendron javanicum subsp. moultonii (Ridl.) Argent – epiphytic shrub, Sabah and Sarawak
  • Rhododendron javanicum subsp. palawanense Argent – epiphytic shrub, Philippines (Palawan)
  • Rhododendron javanicum subsp. schadenbergii (Warb.) Argent – epiphytic shrub, Philippines and northeastern Sulawesi
  • Rhododendron javanicum subsp. teysmannii (Miq.) Argent – epiphytic shrub, Peninsular Malaysia, Sumatra, Java, and Lesser Sunda Islands

References

  1. 1 2 Rhododendron javanicum (Blume) Benn. Plants of the World Online, Kew Science. Accessed 13 March 2023.
  2. ↑ Jermy, A.C.; Kavanagh, K.P. (1982), "Notulae et Novitates Muluenses", Botanical Journal of the Linnean Society, 85 (1): 1–73, doi:10.1111/j.1095-8339.1982.tb00370.x
  3. ↑ Horsfield, T.; Bennett, J.J.; Brown, R. (1838), Plantae javanicae rariores, descriptae iconibusque illustratae, quas in insula Java, annis 1802-1818 legit et investigavit pages 85–87 and plate XIX
  4. ↑ USDA Germplasm Resources Information Network (GRIN)
  5. ↑ "Rhododendron javanicum". Trees and Shrubs Online. International Dendrology Society. Retrieved 22 April 2021.


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