| Family | Asteraceae (alt. Compositae) |
| Scientific name | Ixeridium dentatum (Thunberg) Tzvelev subsp. kitayamense (Murata) J. H. Pak & Kawano |
| Synonyms | none |
| Common name | (Japanese common name) doro niga-na [Doro Valley bitter greens] |
| (English common name) none | |
| Distribution | (Japan) Honshu (Mie Prefecture) |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants electing ca. 20-30cm tall. Flowers involucres 4-5mm, 5-7 (ordinary 5) yellow florets, flowering in May. Perennial plants. |
| Note | Rare species. |
| May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |
May 2008 at Tsukuba Botanical Garden |