| Family | LAMIACEAE |
| Genus species | Sideritis clandestina (Bory & Chaub.) Hayek |
| Bibliography | Repert. Spec. Nov. Regni. Veg. Beih. 30(2): 257 (1929) |
| Native Range | Greece (Taygetos) |
| Primary Biome | Subtropical |
| Habitat | rocky slopes |
| Description | yellowish tomentose, leaves rugose, the lower oblong-spathulate, obtuse, petiolate, entire, upper leaves linear, whorls in spike, bracts lanceolate, acuminate |
| Size | 20-25cm |
| Color | yellow |
| Bloom | late summer |
| Ca | + |
| Type | subshrub |
| Cultivation | sunny, dry, 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 cuttings in late summer |
| Synonyms | Navicularia clandestina (Bory & Chaub.) Soják Phlomis clandestina Bory & Chaub. Sideritis theezans Boiss. & Heldr. |
| Territory | 1 Europe 13 Southeastern Europe (GRC Greece) |