Koenigia weyrichii

Koenigia weyrichii

  • Koenigia weyrichii
  • Koenigia weyrichii
  • Koenigia weyrichii
  • Koenigia weyrichii
  • Flower name
    Koenigia weyrichii
  • Scientific name
    Koenigia weyrichii
  • AliasAconogonon weyrichii, ウラジロイタドリ, タカネウラジロイタドリ, Koenigia weyrichii
  • Place of originJapan, the Kuril Islands and Sakhalin
  • Place of floweringHigh mountain, Sub-alpine
  • Flowering seasonJune, July, August, September, October

What is Koenigia weyrichii

Koenigia weyrichii (scientific name: Koenigia weyrichii) is an alpine perennial herbaceous plant belonging to the family Polygonaceae, and is native to Japan, the Kuril Islands and Sakhalin. It is an alpine perennial herbaceous plant in the family Polygonaceae. It is dioecious. In summer, the flower stalks emerge and the conical inflorescence grows from the top of the stem and produces many small yellowish-white flowers. However, what looks like this flower is a calyx, with no petals. Ontaede (scientific name: Aconogonon weyrichii var. alpinum) is a variant of K. weyrichii. Whereas K. weyrichii has white downy undersides of leaves and looks white. The undersides of the leaves of Ontaede (A. weyrichii var. alpinum) are green because they are hairless.

Common name: Koenigia weyrichii , scientific name: Koenigia weyrichii, or Aconogonon weyrichii, Koenigia weyrichii var. weyrichii, Origin: Japan, Kuril Islands, Sakhalin, Height: 30-100 cm, Leaf height: 10-20 cm, Leaf shape: ovate to long ovate with a pointed tip, Inflorescence: alternate, leaf margin: bristles on the whole margin, Inflorescence: conical inflorescence, Flower color: yellow-white, Flowering season: June to October, Flower diameter (diameter). Sepal diameter): 0.3-0.5 cm; fruit type: lean fruit.


  • Order
    Caryophyllales
  • Family
    Polygonaceae
  • Genus
    Koenigia
  • Species
    K. weyrichii
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Cone / Compound inflorescence
  • Petal shape
    without
  • Leaf type
    ovoid
  • Edge of the leaf
    All edges
  • Life typealpine perennial herbaceous plant
  • Flower colorsWhite
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height30.0 ~ 100.0 cm
  • Diameter of flower0.3 ~ 0.5 cm

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