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.