| Family | HYPERICACEAE |
| Genus species | Hypericum oliganthum Franch. & Sav. sect. Hypericum |
| Bibliography | Enum. Pl. Jap. 2: 299 (1878) |
| Native Range | c. & s. Japan, South Korea |
| Primary Biome | Temperate |
| Habitat | grassland |
| Description | leaves subsessile, 13-25mm, oblong to oblanceolate, rounded, flat, cuneate, inflorescence narrowly pyramidal, flowers 10-15mm, petals oblong, rounded |
| Size | 10-40cm |
| 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 conjunctum Y.Kimura Hypericum erectum var. flaccidum Blume Hypericum flaccidum Makino Hypericum goehringianum Koidz. Hypericum makinoi H.Lév. Hypericum oliganthum var. nigrum Y.Kimura |
| Territory | 3 Asia-Temperate 38 Eastern Asia (JAP Japan, KOR Korea) |