| Family | Amaranthaceae |
| Scientific name | Achyranthes longifolia (Makino) Makino |
| Synonyms | Achyranthes bidentata Blume var. longifolia Makino |
| Common name | (Japanese common name) yanagi-inokodzuchi (ヤナギイノコヅチ or ヤナギイノコズチ, 柳猪子槌 [willow leaved inokodzuchi (inokodzuchi = a kind of traditional detoxicant weed)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Kanto region), Shikoku, Kyushu |
| (Other nations) China, Taiwan, Vietnam, Thailand, Laos | |
| Habitat | Mountane forest or forest edge |
| Chromosomal number | 2n=42 |
| Description | Plants 80cm tall. Leaves 7-20cm long, 1-5cm wide. Flowers flowering in August to September. Prennial plants. |
| Reference | Achyranthes longifolia (Makino) Makino |
| Achyranthes longifolia (Makino) Makino |
| September 2007 at Ushiku Forest Park |
September 2007 at Ushiku Forest Park |
September 2007 at Ushiku Forest Park |
| September 2007 at Ushiku Forest Park |