| Family | RUBIACEAE |
| Genus species | Nertera tetrasperma Kunth |
| Bibliography | Nov. Gen. Sp. [F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth] 3: 379 (1819) |
| Native Range | w. South America |
| Primary Biome | Temperate |
| Habitat | grassland and rocks |
| Altitude | 3000-4000m |
| Description | glabrous, stems filiform, procumbent, leaves minute, ovate or ovate-lanceolate, acute, shortly petiolate, rigid, drupe spherical, axillary |
| Size | 5-10cm |
| Color | |
| Bloom | summer |
| Ca | |
| Type | subshrub |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed when ripe or as soon as possible cuttings in late summer |
| Synonyms | Geoherpum alsinifolium Willd. Mitchella ovata DC. Nertera granadensis var. tetrasperma (Kunth) L.C.Andersson |
| Territory | 8 Southern America 83 Western South America (CLM Colombia, ECU Ecuador, PER Peru) |