| Family | CARYOPHYLLACEAE |
| Genus species | Arenaria tatewakii Nakai |
| Bibliography | Veg. Apoi: 35, 48 (1930) |
| Native Range | Japan (Hokkaido: Mt. Apoi) |
| Primary Biome | Temperate |
| Habitat | rocky slopes |
| Description | leaves minute, opposite, lanceolate, acute, sessile, glabrous, thick, green, to 5mm long, flowers 1-3, pedicellate, 6-8mm across, calyx subglabrous |
| Size | 5-10cm |
| Color | white |
| Bloom | late spring, summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C cuttings in late summer |
| Synonyms | Arenaria katoana var. lanceolata Tatew. |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan) |