Japanese iris

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File:Meigetuin02.jpg
Hanashōbu at Meigetsu-in
File:Iris ensata var ensata2.jpg
Iris ensata (including Iris kaempferi)

The term "Japanese iris" encompasses three species of Irises cultivated in gardens or growing wild in Japan: hanashōbu (Iris ensata), kakitsubata (Iris laevigata) and ayame (Iris sanguinea). Of these three species, I. ensata is the one most commonly referred to as "Japanese iris" outside Japan.

The bluish purple color of the flowers of the Japanese garden iris is an example of the copigmentation phenomenon.[1]

Hanashōbu

The Script error: No such module "Nihongo". grows in the wet land and is the most extensively cultivated variety in Japanese gardens. According to the place where it was cultivated, it is classified into the Edo (Tokyo), Higo (Kumamoto Prefecture), Ise (Mie Prefecture), American (U.S.) and other series. It is extensively grown in gardens throughout the temperate zones. Several cultivars have been selected, of which 'Rose Queen'[2] and 'Variegata'[3] have gained the Royal Horticultural Society's Award of Garden Merit.

Kakitsubata

The Script error: No such module "Nihongo". grows in the semi-wet land and is less popular, but is also cultivated extensively.[citation needed]

It is a prefectural flower of Aichi Prefecture due to the famous tanka poem which is said to have been written in this area during the Heian period, as it appears in The Tales of Ise by Ariwara no Narihira (note that the beginning syllables are "ka-ki-tsu-ha (ba)-ta"):

Original text Pronunciation Meaning

から衣

きつゝなれにし

つましあれば

はるばるきぬる

たびをしぞ思

Karakoromo

Kitsutsu narenishi

Tsuma shi areba,

Harubaru kinuru

Tabi o shizo omou

I have come so far away on this trip this time and think of my wife that I left in Kyoto

Kakitsubata at Ōta Shrine, Kyoto, is a National Natural Treasure. It was already recorded in a tanka by Fujiwara Toshinari also in the Heian period:

Original text Pronunciation Meaning

神山や大田の沢のかきつばた

ふかきたのみは色に見ゆらむ

Kamiyama ya ōta no sawa no kakitsubata

Fukaki tanomi wa iro ni miyu ramu

Like the kakitsubata at Ōta Wetland, a God-sent heaven, my trust in you can be seen in the color of their flowers.

Ayame

The Script error: No such module "Nihongo". is the iris typically growing wild on the dry land in Japan.

Characteristics

Classification Color of flower Leaf Feature of flower Location Flowering time
Hanashōbu Red purple, purple, etc. Distinct artery Shows no net Wet land Early June - late June
Kakitsubata Blue, purple, white, etc. Small artery Shows no net In water or wet land mid-May - late May
Ayame Purple, rarely white Main artery not clear Shows net Dry land Early May - Mid-June

Note: Sweet flag, called shōbu (Script error: No such module "Lang".) in Japanese, is a plant belonging to the family Acoraceae, genus Acorus, known for its fragrant roots, rather than its flowers.

See also

References

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  1. ^ Anthocyanin-flavone copigmentation in bluish purple flowers of Japanese garden iris (Iris ensata Thunb.) T. Yabuya, M. Nakamura, T. Iwashina, M. Yamaguchi and T. Takehara, EUPHYTICA, Volume 98, Number 3, 163-167, Script error: No such module "CS1 identifiers".
  2. ^ Page Module:Citation/CS1/styles.css has no content."RHS Plant Selector - Iris ensata 'Rose Queen'". Royal Horticultural Society. Archived from the original on 2014-02-22. Retrieved 2013-05-20.
  3. ^ Page Module:Citation/CS1/styles.css has no content."RHS Plant Selector - Iris ensata 'Variegata'". Royal Horticultural Society. Archived from the original on 2014-02-22. Retrieved 2013-05-20.