| Family | HYPERICACEAE |
| Genus species | Hypericum hakonense Franch. & Sav. sect. Hypericum |
| Bibliography | Enum. Pl. Jap. 2: 298 (1878) |
| Native Range | Japan (sc. Honshu) |
| Primary Biome | Temperate |
| Habitat | grassland |
| Altitude | 500-1300m |
| Description | leaves linear-oblong to narrowly oblanceolate, 15-25mm long, flowers to 15mm acros, up to 10, in lax terminal raceme |
| Size | 10-35cm |
| Color | yellow |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | mesic, slightly humous, sunny site alpine house, moist, rich, drained soil, sun |
| Propagation | seed in spring, barely covered, germ. 1-3 months, 10-16°C division in spring; cuttings in late summer |
| Synonyms | Hypericum hakonense f. imperforatum Y.Kimura |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan) |