| Family | Saxifragaceae |
| Scientific name | Saxifraga sachalinensis F. Schmidt |
| Synonyms | none |
| Common name | (Japanese common name) yamahana-sou (ヤマハナソウ, 山鼻草 [meaning: Yamahana area weed]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido |
| (Other nations) Russia (Far East) | |
| Habitat | Mountane wet rocks |
| Chromosomal number | 2n=40 |
| Description | Leaves 4-10cm long. Scapes 10-40cm tall. Flowers white petals each 3-4mm long, 10 stamens each ca. 4mm long, flowering in May to June. Seeds 4-6mm long. Perennial plants. |
| Reference | Saxifraga sachalinensis Fr. Schm. |
| Trichome anatomy and taxonomy of Saxifraga (Saxifragaceae) | |
| Liver function protecting or improving agent (European Patent Application EP1213027/2003) | |
| Note | Relatively rare. |
| April 2009 at my home |
April 2009 at my home |
April 2009 at my home |
| April 2009 at my home |