Iris pseudacorus

Iris pseudacorus

  • Iris pseudacorus
  • Iris pseudacorus
  • Iris pseudacorus
  • Iris pseudacorus
  • Iris pseudacorus
  • Iris pseudacorus
  • Iris pseudacorus
  • Iris pseudacorus
  • Flower name
    Iris pseudacorus
  • Scientific name
    Iris pseudacorus
  • Aliasyellow iris
  • Place of originEurope
  • Place of floweringFields and footpaths, River, pond, Rice paddies
  • Flowering seasonMay, June

What is Iris pseudacorus

Iris pseudacorus, yellow iris, or Kishobu Ayame (Scientific name: Iris pseudacorus) is a perennial plant in the family Iridaceae, which is native to Europe. It is an extractive plant that grows in shallow water such as lakes and marshes. The root lobes protrude in two rows and have a sword-shaped tip. In late spring to early summer, yellow iris-shaped flowers are produced at the tips of the flower stems, with three long outer cloaks hanging down and three short inner cloaks rising up. It is a beautiful flower, but it is a naturalized plant and has a strong fertility, so it is designated as an invasive species that needs attention by the Environment Agency.

Common name: Iris pseudacorus, Scientific name: Iris pseudacorus, Place of origin: Europe, growing place: field, leaf shape: sword-shaped, grass height: 60-100 cm, leaf length: 60-100 cm, leaf width: 1.5-3 cm, leaf margin: full margin, flower color: yellow, flower diameter: 8 cm, [Number of petals] inner flower cotyledon: 3, outer flower cotyledon: 3, flowering period: May-June, fruit shape: triangular ellipsoid, seed diameter: 0.8 cm.


  • Order
    Asparagales
  • Family
    Iridaceae
  • Genus
    Iris
  • Species
    I. pseudacorus
  • Type of flower
    Left-right symmetrical flower
  • Array of flower
    Monopetal inflorescence
  • Petal shape
    Iris-shaped
  • Leaf type
    sword-shaped
  • Edge of the leaf
    All edges
  • Life typeperennial plant
  • Flower colorsYellow
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height60.0 ~ 100.0 cm
  • Diameter of flower8.0 ~ 8.0 cm

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