| Family | CISTACEAE |
| Genus species | Helianthemum rupifragum A.Kern. |
| Bibliography | Oesterr. Bot. Z. 18: 18 (1868) |
| Native Range | ec. & e. Europe to Turkey |
| Primary Biome | Temperate |
| Habitat | rocks |
| Description | stems ascendent, densely hirsute, leaves 5-25mm, lanceolate to oblong, acute, on both faces green, adaxially glabrescent, inflorescence 3-15-flowered, petals obovate |
| Size | 8-20cm |
| Color | yellow |
| 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 | Helianthemum ambiguum Schur Helianthemum cretaceum (Rupr.) Juz. Helianthemum cretophilum Klokov & Dobrocz. Helianthemum italicum var. cretaceum Rupr. Helianthemum oelandicum ssp. rupifragum (A.Kern.) Breistr. Helianthemum skericense Simonk. Rhodax ambiguus (Schur) Fuss Rhodax italicus ssp. rupifragus (A.Kern.) Á.Löve & D.Löve Rhodax rupifragus (A.Kern.) Holub |
| Territory | 1 Europe 11 Middle Europe (CZE Czechoslovakia, POL Poland) 12 Southwestern Europe 13 Southeastern Europe (ROM Romania, YUG Yugoslavia) 14 Eastern Europe (BLR Belarus, RUC Central European Russia, RUE East European Russia, RUN North European Russia, RUS South European Russia, UKR Ukraine) 3 Asia-Temperate 34 Western Asia (TUR Turkey) |