| Family | Asteraceae (alt. Compositae) |
| Scientific name | Pertya rigidula (Miquel) Makino |
| Synonyms | Macroclinidium rigidulum (Miquel) Makino |
| Common name | (Japanese common name) kuruma-ba-haguma (クルマバハグマ, 車葉白熊 [meaning: wheel leaved haguma (haguma = Bos grunniens' wool))]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (north of Kinki region) |
| (Other nations) none | |
| Habitat | Mountane forest or forest edge |
| Chromosomal number | unknown |
| Description | Plants 50-80cm tall. Leaves 7-8 verticillate, leaflets each ca. 20cm long. Flowers involucres ca. 18-20mm long, flowering in August to September. Perennial plants. |
| September 2008 at mountane forest |
September 2008 at mountane forest |
September 2008 at mountane forest |