Rhododendron javanicum

{{Short description|Species of plant}}

{{Speciesbox

| image = Rhododendron javanicum.jpg

| genus = Rhododendron

| species = javanicum

| authority = (Blume) Benn.

| synonyms =

  • Azalea javanica (Blume) Kuntze
  • Rhododendron brookeanum Low ex Lindl. {{citation |author1=Jermy, A.C. |author2=Kavanagh, K.P. |year=1982 |title=Notulae et Novitates Muluenses |journal=Botanical Journal of the Linnean Society |volume=85 |issue=1 |pages=1–73 |doi=10.1111/j.1095-8339.1982.tb00370.x}}
  • Vireya javanica Blume.{{citation |author1=Horsfield, T. |author2=Bennett, J.J. |author3=Brown, R. |year=1838 |title=Plantae javanicae rariores, descriptae iconibusque illustratae, quas in insula Java, annis 1802-1818 legit et investigavit |url=https://books.google.com/books?id=NspLAAAAcAAJ}} pages 85–87 and plate XIX

}}

Rhododendron javanicum is a rhododendron species native to Indonesia, Malaysia, and the Philippines.[https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=5180 USDA Germplasm Resources Information Network (GRIN)] This evergreen shrub grows to {{convert|5|m|ft|abbr=on}} 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.{{cite web | url = https://treesandshrubsonline.org/articles/rhododendron/rhododendron-javanicum/ | title = Rhododendron javanicum | website = Trees and Shrubs Online | publisher = International Dendrology Society | access-date = 22 April 2021}}

Subspecies

Nine subspecies are recognized:[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:332655-1 Rhododendron javanicum (Blume) Benn.] Plants of the World Online, Kew Science. Accessed 13 March 2023.

  • 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

File:Rhododendron javanicum brookeanum (14012162344).jpg|R. javanicum subsp. brookeanum

References

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