Rhododendron javanicum


Rhododendron javanicum is a rhododendron species native to Indonesia, Malaysia, and the Philippines. This evergreen shrub grows to 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.

Subspecies

Nine subspecies are recognized:
  • Rhododendron javanicum subsp. brookeanum Argent & Phillipps – epiphytic shrub or tree, Borneo
  • Rhododendron javanicum subsp. cladotrichum Argent – epiphytic shrub, Borneo
  • Rhododendron javanicum subsp. gracile 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 – hemiepiphytic shrub, Borneo
  • Rhododendron javanicum subsp. moultonii Argent – epiphytic shrub, Sabah and Sarawak
  • Rhododendron javanicum subsp. palawanense Argent – epiphytic shrub, Philippines
  • Rhododendron javanicum subsp. schadenbergii Argent – epiphytic shrub, Philippines and northeastern Sulawesi
  • Rhododendron javanicum subsp. teysmannii Argent – epiphytic shrub, Peninsular Malaysia, Sumatra, Java, and Lesser Sunda Islands