| Family | HYPERICACEAE |
| Genus species | Hypericum hachijyoense Nakai sect. Hypericum |
| Bibliography | Bot. Mag. (Tokyo) 36: 68 (1922) |
| Native Range | Japan (Tokyo-Izu) |
| Primary Biome | Temperate |
| Habitat | grassland and rocks |
| Description | leaves sessile, 6-15mm, narrowly oblong, abaxially glaucous, rounded, flat, glandular-punctate, inflorescence 3-5-flowered, corymbose, flowers 11-13mm, petals obovate |
| Size | 5-15cm |
| Color | golden yellow |
| Bloom | summer |
| Ca | |
| Type | perennial |
| Cultivation | sunny rock crevices, protection against winter wet alpine house, poor, 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 hachijyoense f. nigrum Y.Kimura |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan) |