| Family | CRASSULACEAE |
| Genus species | Prometheum tymphaeum (Quézel & Contandr.) ´t Hart |
| Bibliography | Evol. & Syst. Crassulac. [H.‘t Hart & U.Eggli]: 170 (1995) |
| Native Range | nw. & n. Greece |
| Primary Biome | Temperate |
| Habitat | rocks |
| Altitude | 1700-2200m |
| Description | minutely glandular-hirsute, viscid, rosettes spherical, leaves oblong-obovate to spathulate, flattened, 10-12mm, inflorescence few flowered cyme, petals 7-9mm, acute |
| Size | 5-10cm |
| Color | white |
| Bloom | spring |
| Ca | |
| Type | succulent |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in winter, uncovered, germ. 1-3 months, 13-18°C division in spring and in late summer; detachment of rosette |
| Synonyms | Helladia tymphaea (Quézel & Contandr.) M.Král Sedum tymphaeum Quézel & Contandr. |
| Territory | 1 Europe 13 Southeastern Europe (GRC Greece) |