| Family | Caryophyllaceae |
| Subfamily | Caryophylloideae |
| Tribe | Sileneae |
| Scientific name | Silene keiskei Miquel forma procumbens Takeda |
| Synonyms | Silene keiskei Miquel var. minor (Takeda) Ohwi & H. Ohashi forma procumbens (Takeda) Ohwi & H. Ohashi; Silene keiskei Miquel var. procumbens Takeda |
| Common name | (Japanese common name) turu-biranji (ツルビランジ, 蔓ビランジ [meaning: vine biranji (meaning of biranji is unknown)]) |
| (English common name) none | |
| Distribution | (Japan) Honshu (Kanto region, Central region) |
| (Other nations) none | |
| Habitat | Subalpine rocks |
| Chromosomal number | unknown |
| Description | Plants creeping 50cm. Flowers pink (merely white) ca. 2cm, flowering in July to September. Perennial plants. |
| Note | Rare species. Endemic to Japan. |
| June 2007 at Tsukuba Botanical Garden |
June 2007 at Tsukuba Botanical Garden |