Rhododendron weyrichii

Rhododendron weyrichii

  • Rhododendron weyrichii
  • Rhododendron weyrichii
  • Flower name
    Rhododendron weyrichii
  • Scientific name
    Rhododendron weyrichii
  • AliasRhododendron weyrichii, 雄躑躅, ツクシアカツツジ, 筑紫赤躑躅
  • Place of originJapan
  • Place of floweringLow mountains
  • Flowering seasonApril, May
  • Language of flowersSelf-control

What is Rhododendron weyrichii

Rhododendron weyrichii or On tsutsuji (Rhododendron weyrichii) is a deciduous shrub or small tree native to Japan in the family Ericaceae. It is native to rocky areas and forest edges in the Kinki region and southwards, Shikoku and Kyushu in Japan. One to three orange flowers bloom in clusters at the tips of branches before or when the leaves unfurl. The corolla is funnel-shaped with five deep lobes and the lobes are oval with dark red spots on the upper side of each lobe.

Common name: Rhododendron weyrichii,Scientific name: Rhododendron weyrichii, Place of origin: Japan, Tree height: 2-6 m, Leaf texture: papery, Leaf blade length: 3.5-8 cm, Leaf shape: ovate, Leaf margin: entire, Leaf width: 2.5 cm, Leaf blade length: 3.5-8 cm, leaf shape: ovate, leaf margin: fully margined, leaf width: 2.5-7 cm, Stamens: 10; stamens: 10; flowering season: April-May; flower color: orange, Number of stamens: 10; fruit type: capsule; fruiting season: September-October.


  • Order
    Ericales
  • Family
    Ericaceae
  • Genus
    Rhododendron
  • Species
    R. weyrichii
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Gross inflorescence
  • Petal shape
    Funnel/trumpet shaped
  • Leaf type
    ovoid
  • Edge of the leaf
    All edges
  • Life typeCold hardiness of mature trees
  • Flower colorsPink
  • Colors of the leavesGreen
  • Fruit color
  • Height200.0 ~ 600.0 cm
  • Diameter of flower4.5 ~ 6.0 cm

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