Iwachidori

Ponerorchis keiskei

  • Iwachidori
  • Iwachidori
  • Iwachidori
  • Iwachidori
  • Iwachidori
  • Iwachidori
  • Flower name
    Iwachidori
  • Scientific name
    Ponerorchis keiskei
  • Alias岩千鳥, 八千代, Ponerorchis keiskei, Iwachidori, 千鳥蘭, 君が代
  • Place of originJapan
  • Place of floweringPotted flower
  • Flowering seasonApril, May, June

What is Iwachidori

Iwachidori (Scientific name: Ponderorchis keiskei) is a endemic species of Japan, and is a small deciduous wild orchid perennial plant (bulb plant) of the orchid family Hinaran. Distributed from Honshu to Shikoku and Izu Islands in Japan, it grows in wet rocky areas. Remove the petiole from the underground tuber and attach a long oval leaf. The plant height is 5 to 15 cm.
From spring to early summer, take out the flower stalks, extend the spikes from the tip and attach 1 to 10 pink florets. The flower is similar to capital grass and is a doll. The lip flap splits into three, and the middle split further splits into two. The lip flap has two rows of deep pink spots. Other flower colors are white and purple.
The kind name "keiskei" is attributed to the botanist "Dr. Keisuke Ito" (Dr. Yusuke Ito) of the Meiji era.

synonym: Amitostigma keiskei,
Also name: Iwachidori, Yachiyo, Chidoriran, Kimigayo,
Leaf length: 3 to 5 cm, leaf shape: oblong,
Flowering stage: April-June, Usage: Horticultural plants.


  • Eye
    Asparagales
  • Family
    Orchidaceae
  • Genus
    Ponerorchis
  • Species
    P. keiskei
  • Type of flower
    Left-right symmetrical flower
  • Array of flower
    Spikelet inflorescence
  • Petal shape
    Orchid shape
  • Leaf type
    oblong
  • Edge of the leaf
    All edges
  • Life typesmall deciduous wild orchid perennial plant (bulb plant)
  • Flower colorsPink
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height5.0 ~ 15.0 cm
  • Diameter of flower1.0 ~ 1.5 cm

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