| Family | BORAGINACEAE |
| Genus species | Mertensia tweedyi Rydb. |
| Bibliography | Mem. New York Bot. Gard. 1: 336 (1900) |
| Native Range | nw. USA to New Mexico |
| Primary Biome | Subalpine |
| Habitat | grassland |
| Altitude | 2700-4200m |
| Description | stem glabrous, leaves adaxially scabrous, setose, lower leaves elliptic or lanceolate, 15-50mm, petiolate, stem leaves sessile, upwards smaller, flowers in cluster |
| Size | 5-25cm |
| Color | blue |
| Bloom | summer |
| Ca | - |
| Type | perennial |
| Cultivation | humous, moist, but in winter drier, semi-shady site alpine house, moist, humous soil, shading in summer |
| Propagation | seed in winter, germ. 1-3 months, 13-16°C division in spring; cuttings in late summer |
| Synonyms | Cerinthoides alpinum (Torr.) Kuntze Mertensia alpina (Torr.) G.Don Mertensia brevistyla var. obtusiloba (Rydb.) A.Nelson Mertensia obtusiloba Rydb. Pulmonaria alpina Torr. |
| Territory | 7 Northern America 73 Northwestern U.S.A. (COL Colorado, IDA Idaho, MNT Montana, WYO Wyoming) 77 South-Central U.S.A. (NWM New Mexico) |
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