Ponerorchis joo-iokiana

Ponerorchis joo-iokiana

  • Ponerorchis joo-iokiana
  • Ponerorchis joo-iokiana
  • Flower name
    Ponerorchis joo-iokiana
  • Scientific name
    Ponerorchis joo-iokiana
  • Aliasgrass-like leaved orchis, ポネロキス ジョーイオキアナ
  • Place of origin Japan and the Korean Peninsula
  • Place of floweringSub-alpine
  • Flowering seasonJuly, August

What is Ponerorchis joo-iokiana

Ponerorchis joo-iokiana or grass-like leaved orchi (scientific name: Ponerorchis joo-iokiana) is a perennial herb native to Japan and the Korean Peninsula, belonging to the family Orchidaceae. It grows wild in open grassland in subalpine areas in Fukushima, Tochigi and Chubu prefectures. The plant is 10 to 30 cm tall and produces 2 to 3 lanceolate leaves.
From July to August, it produces flower stalks from egg-shaped tuber, and from the tip of the stalks grows a raceme of inflorescences, producing 3 to 8 reddish-purple lip-shaped flowers on each stem.
The upper (dorsal) forehead is 1 cm long. The lip petals are 1.5 cm long with a purple spot at the base and a straight thallus 1.5 to 1.7 cm long.

Scientific and Japanese Names of Ponerorchis joo-iokiana
It was first described in 1902 by Dr. Tomitaro Makino under the scientific name "Orchis joo-iokiana", which was later changed to "Ponerorchis joo-iokiana". The current genus name "Ponerorchis" means "Poner (small)" + "orchis (orchid)," and the species minor name "joo-iokiana" is a dedication to the collectors Jo Kazuma and Fumiya Ioki.
The Japanese name "Nyoho-chidori," "Nyoho," refers to the fact that it was collected on Mt. Nyoho,and the name "chidori" refers to the flower's shape, which was thought to resemble a chidori(plover) in flight.

Common name: Ponerorchis joo-iokiana or grass-like leaved orchi (scientific name: Ponerorchis joo-iokiana, Habitat Distribution: Japan, Korean Peninsula, Distribution: Fukushima, Tochigi - Chubu District, Living Environment: Rocky areas and grasslands in mountains and subalpine areas, Height: 10 - 30 cm, Pseudocotyl shape: globose, Leaf color: green, Leaf shape: lanceolate, Number of leaves: 2 - 3, Leaf length: 4 - 8 leaf width: 0.4-1.5 cm, flowering season: July-August, flower color: red-purple, flower diameter: 1-2 cm, flower shape: lip-shaped, lip petals: 3 shallowly lobed with a purple spot at the base and a talus, talus length: 1.5-1.7 cm, notes:: endangered category II (VU).

  • Order
  • Family
  • Genus
  • Species
    P. joo-iokiana
  • Type of flower
    Left-right symmetrical flower
  • Array of flower
    Gross inflorescence
  • Petal shape
    Orchid shape
  • Leaf type
  • Edge of the leaf
  • Life typeEvergreen perennial
  • Flower colorsPurple
  • Colors of the leavesGreen
  • Fruit color
  • Height10.0 ~ 30.0 cm
  • Diameter of flower1.0 ~ 2.0 cm

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