(First upload on June 28 2018. Last on June 29 2021) [ 日本語 | English ]

Iris L. used for gardening

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Iris L. (アヤメ)
  • I. xiphium L. (スペインアヤメ)
  • I. lactea Pall. (ネジアヤメ)

I. germanica L.

Doitsu-ayame (ドイツアヤメ, 独逸菖蒲/文目/綾目), German iris or tall bearded iris
⇒ Cultivar crossed by a few Iris species: no native species

introduced to Japan in Meiji Era

Lifeform: bulbil, perennial forb
Use: gardening
Flower: purple - white - yellow

I. lactea Pall.

Neji-ayame (ネジアヤメ, 捩菖蒲/文目/綾目)
Habitat: xeric grasslands
Distribution: China - Korea

- var. chinensis (Fisch.) Koidz., discarded

I. reticulata M. Bieb. (コマチアヤメ)

Komachiayame (コマチアヤメ, 小町菖蒲), dwarf iris, netted iris or golden netted iris
Lifeform: perennial forb, with short flowering stalks ≈ 15 cm in height
Distribution: Russia - Caucasus - northern Iran
Habitat: scrub and open rocky meadows
Use: gardening and ornamental
Synonymds (discarded varieties)

- var. cyanea Regel
- var. krelagei Regel
- var. reticulata

I. sibirica

Siberia-ayame (シベリアアヤメ, 西伯利亜菖蒲), Siberian iris or Siberian flag
Lifeform: rhizomatous perennial forb, with 50-120 cm in height
Distribution: Europe - central Asia, including Siberia
Flower: violet-blue, blue and white

Iris used for gardening in Hokkaido

I. germanica L. (ドイツアヤメ)

Iris1 Iris2 Iris3
Iris4 Iris5 Iris6
[1/2] in a house garden, N20/W2, North Ward, Sapporo, on June 4 2018. [3] escaped to Ono Pond (大野池), Hokkaido University, on June 4 2018. [4] in a small flower garden under a street tree in N24/W1, North Ward, Sapporo, on June 8 2020. [5/6] in a small flower garden under a street tree in N18/W4, North Ward, Sapporo, on June 4 2018.

I. lactea Pall. (ネジアヤメ)

Iris1 Iris2 Iris3
[1/2] in the animal and plant park, Changchun City, Jilin Prvince, northeastern China, on June 6 2017.

I. reticulata L. (コマチアヤメ)

Iris1 Iris2 Iris3
[1-3] at a greenhouse in Yurigahara Park, Sapporo, on January 24 2021

I. sibirica (シベリアアヤメ)

Iris1 Iris2 Iris3
[1-3] under a street tree in N21/W2, North Ward, Sapporo, on June 12 2021.