| Family | Saxifragaceae |
| Scientific name | Chrysosplenium japonicum (Maximovicz) Makino |
| Synonyms | Chrysosplenium alternifolium L. var. japonicum Maximovicz; Chrysosplenium alternifolium L. var. papillosum Franchet & Savatier |
| Common name | (Japanese common name) yama neko-no-me-sou (ヤマネコノメソウ, 山猫目草 [meaning: mountain cats eyes weed]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido (southwest region), Honshu, Shikoku, Kyushu |
| (Other nations) Korea, China | |
| Chromosomal number | 2n=24 |
| Description | Leaves 5-25mm wide. Scapes 5-15cm tall. Flowers pale green, 4-8 (mainly 8) anthers, flowering in March to April. Prerennial plants. |
| Reference | Chrysosplenium japonicum (Maximowicz) Makino |
| Liver function protecting or improving agent (US Patent 20020110605) | |
| Preventives or remedies for arthritis (US Patent 20040161478) | |
| Preventives or remedies for arthritis (European Patent EP1407777) |
| March 2007 at mountane forest |
March 2007 at mountane forest |
March 2007 at mountane forest |
| April 2007 at Nikko Botanical Garden |
April 2007 at Nikko Botanical Garden |