It has blue-green grass-like leaves, short stem, 1 or 2 fragrant, white or off-white flowers in spring to early summer.

[2][13][14] It has one or two terminal (at the top of the stem) flower,[4][12][11] in spring to early summer,[15][16] between April or June.

[3] The chemical composition of the iris was studied and it was found that it contains starch and fat oil.

Omi (Korean: 오미산) in Seokpo-myeon and was originally recorded as "Iris koreana for.

Odae and Hoenggye-ri in Gangwon province in 1974, he renamed it "Iris odaesanensis",[21] or "노랑무늬붓꽃" in Korean.

[22] Thus, the species was first published in the 'Korean Journal of Botany' as "Iris odaeanensis"[23] and eventually included in Illustrated Flora and Fauna of Korea: Flowering Plants, Vol.18, in 1976.

[4] In Chinese, the plant is known as "chao xian wei yuan" (朝鲜 鸢 尾).

[27] It grows in the forest margins,[14] mountain meadows and in damp hillsides along ditches.

[12] In the 1997 IUCN Red List of Threatened Plants, it was classified as rare within South Korea (on Mt.

[29] The Hantaek Botanical Garden grows 12 species for conservation and restoration, these include Astilboides tabularis, Crypsinus hastatus, Wasabia koreana, Jeffersonia dubia, Iris odaesanensis, Iris dichotoma, Hylotelephium ussuriense, Abeliophyllum distichum, Brasenia schreberi, Paeonia obovata, Thalictrum coreanum and Corylopsis coreana.

[30] In 2012, the vascular plants of the Jusan Reservoir Watershed in Juwangsan National Park, Korea were studied and 2 species were designated by Ministry of Environment as endangered plants; Berchemia berchemiaefolia (Makino) Koidz.

[31] In 2014, a study of the vascular plants along the altitudinal gradient and investigation routes of Gyebangsan (Mt.)

Out of all the 510 surveyed taxonomic groups, the rare and endangered plants constituted 24 taxa in total.

[9][6] It is thought to be easy to cultivate even in moderately shaded areas of Korea and Japan.

[17] The seeds can suffer from poor germination rates or cross-pollination (with other iris species).

[21] Known varieties include: Like many other irises, most parts of the plant are poisonous (rhizome and leaves), if mistakenly ingested can cause stomach pains and vomiting.