| Family | CARYOPHYLLACEAE |
| Genus species | Pycnophyllum tetrastichum J.Rémy |
| Bibliography | Ann. Sci. Nat., Bot., sér. 3, 6: 356 (1846) |
| Native Range | Peru to nw. Argentina |
| Primary Biome | Montane Tropical |
| Habitat | rocky slopes |
| Altitude | 3300-4900m |
| Description | leaves at apex tapered, gradually convex-curvate, broadly ovate, 4-5mm long, calyx 4-5mm long, sepals ovate-oblong, acute, 3-nerved, petals absent |
| Size | 5-10cm |
| Color | |
| 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 |
| Synonyms | Pycnophyllum filiforme Mattf. Pycnophyllum kobalanthum Mattf. |
| Territory | 8 Southern America 83 Western South America (BOL Bolivia, PER Peru) 85 Southern South America (AGW Argentina Northwest) |