| Family | HYPERICACEAE |
| Genus species | Hypericum sikokumontanum Makino sect. Hypericum |
| Bibliography | Bot. Mag. (Tokyo) 12: 9 (1898) |
| Native Range | s. Japan |
| Primary Biome | Temperate |
| Habitat | grassland |
| Description | glabrous, leaves linear-oblong, ca. 15mm long, obtuse, at base subamplexicaule, black punctate, flowers few, 18-20mm across, sepals lanceolate, obtuse, petals 10-12mm long |
| Size | 10-30cm |
| 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 |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan) |