| Family | CARYOPHYLLACEAE |
| Genus species | Petrocoptis grandiflora Rothm. |
| Bibliography | Cavanillesia 7: 111 (1935) |
| Native Range | nw. Spain |
| Primary Biome | Temperate |
| Habitat | rocks |
| Altitude | 400-500m |
| Description | lower stem leaves 1-2cm, ovate-lanceolate or ovate, thin, green, petiolate, bracts 2-4mm, leaf-like, calyx glabrous, purple, petals 2cm long, retuse |
| Size | 15-30cm |
| Color | pinkish purple |
| 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 | Silene laxipruinosa Mayol & Rosselló |
| Territory | 1 Europe 12 Southwestern Europe (SPA Spain) |