| Family | Asteraceae (alt. Compositae) |
| Scientific name | Cirsium nipponicum (Maximovicz) Makino var. incomptum (Franchet et Savatier) Kitamura |
| Synonyms | Cirsium comosum (Franchet & Savatier) Matsumura var. incomptum (Maximovicz) Kitamura; Cirsium incomptum (Maximovicz) Nakai; Cirsium nipponicum (Maximovicz) Makino var. sawadae (Kitamura) Kitamura |
| Common name | (Japanese common name) tone azami (トネアザミ, 利根薊 [meaning: Tone River azami (azami = thistle)], tai azami [large azami]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Kanto region and Central region) |
| (Other nations) none | |
| Habitat | Subalpine or mountane field |
| Chromosomal number | 2n=34 |
| Description | Plants 100-120cm tall. Flowers involucres 22-25mm wide, cororras 16-19mm long, flowering in September to November. Perennial plants. |
| Reference | Cirsium nipponicum (Maxim.) Makino var. incomptum (Franch. et Savat.) Kitamura |
| Taxonomic Studies of Cirsium (Asteraceae) in Japan : I. Alpine Species of Central Honshu-The Cirsium fauriei Group | |
| Note | Native to Japan |
| August 2006 at high marsh |
August 2006 at high marsh |
August 2006 at high marsh |
| August 2006 at high mountain |
August 2006 at high mountain |
August 2006 at high mountain |