| Family | BORAGINACEAE |
| Genus species | Decalepidanthus trollii (Melch.) Dickoré & Hilger |
| Bibliography | Phytotaxa 226: 139 (2015) |
| Native Range | e. Afghanistan to w. Himalaya |
| Primary Biome | Subalpine |
| Habitat | rocky slopes |
| Description | stems softly hirsute, leaves 5-9cm, lanceolate, appresed hirsute, flowers 3-7 in compact cincinnate raceme, corolla distinctly protrude from calyx, lobes of corolla 2-3mm |
| Size | 10-30cm |
| Color | blue |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | rock crevices with favourable water regime, eastern slopes alpine house, poor, drained soil, shading in summer |
| Propagation | seed in winter, germ. 1-3 months, 13-16°C division in spring; cuttings in late summer |
| Synonyms | Mertensia coventryana S.Clay Mertensia edelbergii Rech.f. & Riedl Mertensia trollii (Melch.) I.M.Johnst. Moltkia trollii Melch. Pseudomertensia edelbergii (Rech.f. & Riedl) Riedl Pseudomertensia trollii (Melch.) R.R.Stewart & Kazmi Pseudomertensia trollii var. edelbergii (Rech.f. & Riedl) Kazmi Pseudomertensia trollii var. harrissii Kazmi |
| Territory | 3 Asia-Temperate 34 Western Asia (AFG Afghanistan) 4 Asia-Tropical 40 Indian Subcontinent (PAK Pakistan, WHM West Himalaya) |