| Family | CARYOPHYLLACEAE |
| Genus species | Pycnophyllum macropetalum Mattf. |
| Bibliography | Repert. Spec. Nov. Regni Veg. 18: 176 (1922) |
| Native Range | Peru to nw. Argentina and n. Chile |
| Primary Biome | Montane Tropical |
| Habitat | grassland and rocks |
| Altitude | 4000-4800m |
| Description | leaves opposite, helical-imbricate, shortly yellow vaginate, obovate, 2-3mm long, rounded, mucronulate, glabrous, convex, flowers dioecious, petals obovate, 5mm long |
| Size | 5-10cm |
| Color | white |
| Bloom | summer |
| Ca | |
| Type | perennial |
| 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, PER Peru) 85 Southern South America (AGW Argentina Northwest, CLN Chile North) |