| Family | Iridaceae |
| Subfamily | Iridoideae |
| Tribe | Irideae |
| Scientific name | Iris setosa Pallas ex Link var. nasuensis H. Hara |
| Synonyms | none |
| Common name | (Japanese common name) nasu hiougi-ayame (ナスヒオウギアヤメ, 那須檜扇菖蒲 [meaning: Mt. Nasu Japanese cypress fan iris]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (north of Central region) |
| (Other nations) none | |
| Habitat | Mountane swamp |
| Chromosomal number | 2n=54 |
| Description | Leaves 20-40cm long, 3.5cm wide. Scapes electing over 100cm tall. Flowers purple ca. 8cm across, inner perianths ca. 2cm long, flowering in May to June. Perennial plants. |
| Reference | Iris setosa Pall. ex Link |
| Iris setosa Pallas ex Link | |
| Polyphenols in Iris setosa var. canadensis and Their Chemotaxonomic Comparisons with Three Japanese Varieties | |
| Wild Iris Species in Japan | |
| Water purificant (US Patent 6254800/2001) | |
| Iris transformation method (US Patent 6459017/2002) | |
| Low complexity classification from a single unattended ground sensor node (US Patent 7343362/2008) |
| June 2008 at Nikko Botanical Garden |
June 2008 at Nikko Botanical Garden |
June 2008 at Nikko Botanical Garden |
| June 2008 at Nikko Botanical Garden |
June 2008 at Nikko Botanical Garden |