| Family | Ranunculaceae |
| Subfamily | Ranunculoideae |
| Tribe | Ranunculeae |
| Scientific name | Ranunculus yesoensis Nakai |
| Synonyms | Batrachium yezoense (Nakai) Kitamura |
| Common name | (Japanese common name) chitose baika-mo (チトセバイカモ, 千歳梅花藻 [meaning: Chitose area cherry flower water weed (Chitose area locates in south of Sapporo City)]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido |
| (Other nations) none | |
| Habitat | River |
| Chromosomal number | unknown |
| Description | Plants 1-2m long. Flowers white ca. 1.5-2cm, flowering in June to September. Water plants. Perennial plants. |
| June 2008 at Eniwa City |
June 2008 at Eniwa City |
June 2008 at Eniwa City |
| June 2008 at Eniwa City |
June 2008 at Eniwa City |
June 2008 at Eniwa City |