| Family | CARYOPHYLLACEAE |
| Genus species | Arenaria rivularis Phil. |
| Bibliography | Fl. Atacam:. 10 (1860) |
| Native Range | w. Bolivia to nw. Argentina and n. Chile |
| Primary Biome | Subalpine |
| Habitat | rocky slopes |
| Altitude | 3200-4700m |
| Description | glabrous, leaves crowded, imbricate, carnose, oblong-linear, 3mm long, flowers solitary, terminal, sessile, sepals acute, petals oblong, obtuse |
| Size | 2-5cm |
| Color | white |
| Bloom | summer |
| Ca | |
| Type | subshrub |
| Cultivation | rock crevices with favourable water regime, eastern slopes alpine house, poor, drained soil, shading in summer |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 13-18°C cuttings in late summer |
| Territory | 8 Southern America 83 Western South America (BOL Bolivia) 85 Southern South America (AGW Argentina Northwest, CLN Chile North) |