Yellow iris - Yellow iris

A perennial plant of the Iridaceae family (APG classification: Iridaceae). Native to Europe, it was introduced to Japan in the mid-Meiji period. The stem is 0.6-1m tall, with a strong, horizontal rhizome, longer internodes than irises, and less fibrous in the dead leaves. The leaves are broad and upright, growing to over 1m, slightly powdery white, with many veins along with the midvein, and not smooth. They branch well and produce yellow or white flowers with thin petals. They fruit abundantly, grow abundantly around water, and have become wild and have become pests in many places. "Aichi no Kagayaki," famous as the first yellow-colored Japanese iris, is a hybrid of Japanese iris. The double-flowered species has petaloid stamens and pistils, does not fruit, and is prolific.

[Kiyoro Yoshie May 21, 2019]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

アヤメ科（APG分類：アヤメ科）の多年草。ヨーロッパ原産で明治中期に渡来した。茎は高さ0.6～1メートル、根茎は強く、横走し、アヤメ類より節間が長く、枯葉の繊維は少ない。葉は幅広で直立し、1メートル以上に伸び、やや粉白で中央脈とともに葉脈も多く平滑でない。よく分枝し、花弁の細い黄や白色の花をつける。よく結実し、水辺に繁茂し、野生化して各地で害草となっている。黄色系のハナショウブ第一号として有名な「愛知の輝(かがやき)」はキショウブの交配種である。八重咲き種は雄しべと雌しべは弁化して結実せず多花性。

［吉江清朗　2019年5月21日］

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