Isunoki

Distylium racemosum

  • Isunoki
  • Isunoki
  • Isunoki
  • Isunoki
  • Isunoki
  • Isunoki
  • Isunoki
  • Isunoki
  • Isunoki
  • Isunoki
  • Flower name
    Isunoki
  • Scientific name
    Distylium racemosum
  • Alias
  • Place of originJapan, the Korean Peninsula, Taiwan and China
  • Place of floweringLow mountains
  • Flowering seasonApril, May

What is Isunoki

Distylium racemosum or Isunoki (scientific name: Distylium racemosum) is native to Japan, the Korean Peninsula, Taiwan and China. It is an evergreen tall tree in the family Hamamelidaceae. It grows in lowland evergreen forests in warm areas of Kanto, Shikoku, Kyushu and the Ryukyu Peninsula. The leaves are infested with aphids (Nipponaphis distychii), which tend to produce large round bumps. Bug bumps contain tannin, which is a dye. The bug bumps will be a whistle. The trees are used for street trees, hedges and windbreaks. Because the wood is hard, it is used for wooden swords, canes, and furniture. The ash is used for pottery. Small, staminous red flowers with no petals bloom in spring.

Scientific name: Distylium racemosum, also known as: "Isunoki" or "Hyonoki". Place of origin: Japan, Korean Peninsula, Taiwan, China, Living type: evergreen tall tree, 10-20 m high, bark color: grayish-white, Leaf color: dark green and glossy; leaf shape: elongate ellipsoid; petiole: alternate; leaf margin: full margin, Flowering season: April - May, Inflorescence type: Conical, Petal: None, anthers color: Red, Fruit type: capsule-shaped, wind medium flower, dehiscent flowers, Applications: hedges, windbreaks, dyestuffs.


  • Eye
    Saxifragales
  • Family
    Hamamelidaceae
  • Genus
    Distylium
  • Species
    D. racemosum
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Cone / Compound inflorescence
  • Petal shape
    without
  • Leaf type
    oblong
  • Edge of the leaf
    All edges
  • Life typeevergreen tall tree
  • Flower colors
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height1000.0 ~ 2000.0 cm
  • Diameter of flower ~ cm

Random flowers