| Family | Iridaceae |
| Subfamily | Iridoideae |
| Tribe | Irideae |
| Scientific name | Iris sanguinea Donn ex Hornemann var. violacea Makino |
| Synonyms | Iris kamayama Makino; Iris thunbergii Lundstrom |
| Common name | (Japanese common name) kamayama shobu (カマヤマショウブ, 蒲山菖蒲 [meaning: Pushan iris (Pushan locats in Korea)]) |
| (English common name) none | |
| Distribution | (Japan) garden plants |
| (Other nations) [native] Korea | |
| Chromosomal number | 2n=28 |
| Description | Leaves 30-50cm long, 5-10mm wide. Scapes 30-60cm tall. Flowers purple 8cm across, flowering in May to August. Perennial plants. |
| Reference | Iris sanguinea Hornem. |
| Iris sanguinea Donn ex Hornemann | |
| Note | Iris sanguinea var. violacea is not native to Japan. This plant has been thought to be introduced from Korea in ancient era. |
| April 2008 at Koishikawa Botanical Garden |
April 2008 at Koishikawa Botanical Garden |
April 2008 at Koishikawa Botanical Garden |