| Family | BORAGINACEAE |
| Genus species | Hydrophyllum thompsonii M.Peck |
| Bibliography | Torreya 28: 55 (1928) |
| Native Range | Oregon to Washington |
| Primary Biome | Temperate |
| Habitat | shady rocks |
| Description | stems sparsely pubescent, leaves in outline ovate, 5-10cm, 5-10-partite, segments incised. lobes lanceolate, mucronate, inflorescence dense, spherical, corolla narrowly campanulate |
| Size | 15-40cm |
| Color | bright blue |
| Bloom | spring |
| Ca | |
| Type | perennial |
| Cultivation | shady, humous, rock crevices alpine house, humous, gravelly soil, shade |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 10-16°C division in spring and early fall; cuttings in late summer |
| Synonyms | Hydrophyllum capitatum var. thompsonii (M.Peck.) Constance |
| Territory | 7 Northern America 73 Northwestern U.S.A. (ORE Oregon, WAS Washington) |