| Family | LAMIACEAE |
| Genus species | Marrubium cylleneum Boiss. & Heldr. |
| Bibliography | Diagn. Pl. Orient. [P.E.Boissier] ser. 2, 4: 51 (1859) |
| Native Range | s. Greece |
| Primary Biome | Temperate |
| Habitat | rocks |
| Altitude | 1000-2100m |
| Description | grey-white sericeous, lower leaves ovate-orbiculate, subcordate, the upper ovate-oblong, shortly petiolate, crenate, whorls 2-3, remote, many flowered |
| Size | 30-50cm |
| Color | pale yellow, whitish |
| Bloom | summer |
| Ca | + |
| Type | perennial |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 18-21°C division in early spring; cuttings in late summer |
| Synonyms | Marrubium candidissimum ssp. cylleneum (Boiss. & Heldr.) Nyman Marrubium velutinum ssp. cylleneum (Boiss. & Heldr.) Nyman |
| Territory | 1 Europe 13 Southeastern Europe (GRC Greece) |