| Family | Asteraceae (alt. Compositae) |
| Scientific name | Prenanthes acerifolia (Maximovicz) Matsumura |
| Synonyms | Prenanthes acerifolia (Maximovicz) Matsumura forma heterophylla Matsumura et Koidzumi |
| Common name | (Japanese common name) fukuo-sou (フクオウソウ, 福王草 [meaning: Mt. Fukuo weed]) |
| (English common name) none | |
| Distribution | (Japan) Honshu, Shikoku, Kyushu |
| (Other nations) none | |
| Habitat | Mountane forest,forest edge |
| Chromosomal number | unknown |
| Description | Plants electing 35-100cm tall. Leaves 6-10cm long. Flowers head ca. 1-2cm long, flowering in August to October. Perennial plants. |
| Note | Relatively rare. |
| October 2007 at Mt. Tsukuba |
October 2007 at Mt. Tsukuba |
October 2007 at Nikko Botanical Garden |
| October 2007 at Mt. Tsukuba |
October 2007 at Mt. Tsukuba |
| October 2007 at Mt. Tsukuba |
October 2007 at Nikko Botanical Garden |