| Family | Asteraceae (alt. Compositae) |
| Scientific name | Euchiton japonicus (Thunberg) A. Anderberg |
| Synonyms | Gnaphalium japonicum Thunberg |
| Common name | (Japanese common name) chichi-ko-gusa [fathre and children weed] |
| (English common name) father-and-child plant | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, Taiwan, Philippines, Indonesia, Papua New Guinea | |
| Chromosomal number | 2n=28 |
| Description | Plants electing 15-30cm. Leaves 2.5-10cm length. Flowers involucres 5mm, flowering in May to October. Perennial plants. |
| Reference | Euchiton japonicus (Thunb.) Holub |
| May 2007 at Imperial Palace |
May 2007 at Imperial Palace |
May 2007 at Imperial Palace |