| Family | Ranunculaceae |
| Subfamily | Ranunculoideae |
| Tribe | Ranunculeae |
| Scientific name | Ranunculus flammula L. var. filiformis (Michaux) Hooker |
| Synonyms | Ranunculus filiformis Michaux; Ranunculus flammula L. subsp. reptans (L.) Syme; Ranunculus flammula L. var. reptans (L.) E. Meyer; Ranunculus flagelliformis sensu Nakai, non Smith; Ranunculus reptans L.; Ranunculus reptans L. var. filiformis (Michaux) de Candolle; Ranunculus reptans L. var. flagelliformis (Nakai) Ohwi; Ranunculus reptans L. var. intermedius (Hooker) Torrey & A. Gray |
| Common name | (Japanese common name) ito-kinpouge (イトキンポウゲ, 糸金鳳花 [meaning: strings buttercup]) |
| (English common name) creeping spearwort | |
| Distribution | (Japan) Hokkaido, Honshu (Nikko, Oze) |
| (Other nations) Russia, China, Mongolia, Kazakhstan, Europe, Canada, USA | |
| Habitat | Swamp |
| Chromosomal number | 2n=32 |
| Description | Plants creeping. Leaves 3-8cm long, 1-2mm wide. Flowers yellow 6.5-8mm, flowering in July to August. Perennial plants. |
| Reference | Ranunculus flammula L. var. filiformis (Michx.) Hook. |
| Ranunculus flammula L. var. reptans (L.) E. Meyer | |
| Ranunculus reptans L. | |
| Ranunculus flammula Linnaeus | |
| Ranunculus reptans Linnaeus | |
| Ranunculus flammula | |
| Ranunculus L. | |
| Anti-microbial compositions (US Patent 6951833/2005) | |
| Agrobacterium transformation of stolons (WO/2006/122023) | |
| Note | Rare species. |
| July 2007 at Ohsaka City University Botanical Garden |
July 2007 at Ohsaka City University Botanical Garden |
July 2007 at Ohsaka City University Botanical Garden |