| Family | Polygonaceae |
| Subfamily | Polygonoideae |
| Scientific name | Persicaria filiformis (Thunberg) Nakai ex W. T. Lee forma albiflora (Hiyama) Yonekura |
| Synonyms | Antenoron filiforme (Thunberg) Roberty & Vautier forma albiflorum (Hiyama) H. Hara; Polygonum filiforme Thunberg forma albiflorum Makino; Tovara filiformis (Thunberg) Nakai forma albiflora Hiyama |
| Common name | (Japanese common name) gin-mizuhiki (ギンミズヒキ, 銀水引 [meainig: silver mizuhiki (mizuhiki = a traditional decoration on envelope in Japan)]) |
| (English common name) none | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa |
| (Other nations) Russia (Far East), Korea, China, Taiwan, Myanmar | |
| Habitat | Forest edge |
| Chromosomal number | 2n=44 |
| Description | Plants stalks 50-80cm tall. Leaves 7-15cm long. Flowers inflorescences ca. 30cm long, white perianths ca. 3mm long, flowering in August to October. Perennial plants. |
| Reference | Persicaria filiformis (Thunb.) Nakai |
| Antenoron filiforme (Thunberg) Roberty & Vautier |
| September 2009 at my home |
September 2009 at my home |
September 2009 at my home |