Yakushima azalea

Rhododendron keiskei var. cordiforia

  •  Yakushima azalea
  •  Yakushima azalea
  • Flower name
    Yakushima azalea
  • Scientific name
    Rhododendron keiskei var. cordiforia
  • Alias日陰躑躅, ツツジ, サワテラシ, Hikage tsutsuji tree, 沢照らし, 這日陰躑躅, ハイヒカゲツツジ, 屋久島日陰躑躅
  • Place of originendemic to Japan
  • Place of floweringBotanical Gardens, Low mountains, Specific area
  • Flowering seasonApril, May

What is Yakushima azalea

Yakushima azalea or R. keiskei 'cordiforia'(scientific name: Rhododendron keiskei var. cordiforia) is a variety of Rhododendron keiskei, a small evergreen shrub in the family Rhodophyceae and genus Rhododendron, endemic to Yakushima and Kirishima. It grows naturally along streams in the mountains of Yakushima. It is a slow-growing creeping plant with tight internodes, so it is suitable for potted plants. Yakushima shade azalea (R. keiskei var. cordiforia) is smaller and shorter than R. keiskei, and has dark-colored flowers. It is also called sahuaterashi. The leaves are ovate. In April to June, it produces inflorescences of light yellowish green to yellowish green flowers. It is used for potted plants and bonsai.

Common name: Yakushima azalea, Scientific name: Rhododendron keiskei var. cordiforia, Rhododendron keiskei var. cordiforia, also known as Rhododendron hikage-tsutsuji, Place of origin: Endemic to Japan (Yakushima, Kirishima), Distribution:Mountain streams in Yakushima and Kirishima, Height: 10-20cm, Trunk color: grayish brown, Leaf shape: lanceolate, leaf length: 4 cm, leaf width: 1 cm, leaf margin: entire, Leaf stalk: alternate, radially symmetrical, joint flowers, flower diameter: 3 cm, flower shape: funnel-shaped with 5 deeply lobed tips, flowering season: mid-April to mid-June, flower color: light yellowish green to yellowish green, number of pistils: 1, number of stamens: 10, fruit type: capsule, uses: potted plant or bonsai.

  • Order
  • Family
  • Genus
  • Species
    R. keiskei var. cordiforia
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Gross inflorescence
  • Petal shape
    Funnel/trumpet shaped
  • Leaf type
  • Edge of the leaf
  • Life typeevergreen broad-leaved shrub
  • Flower colorsGreen Cream
  • Colors of the leavesGreen
  • Fruit color
  • Height10.0 ~ 20.0 cm
  • Diameter of flower3.0 ~ 3.0 cm

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