| General Description | Habitat degradation and deforestation are a large cause of the ancient species globally threatened status on the IUCN Red List. |
| Propagation | Easily propagated by cuttings. |
| Cultivation | Fairly drought tolerant and is relatively tolerant of wet soils. Young plants are tolerant to shade however mature plants are not. |
| Habitat | Mountains of Central Honshu, in limestone outcrops. |
| Bark/Stem Description | Brown in colour. |
| Leaf Description | Ovate, soft and green in colour. |
| Flower Description | A monoecious species; male catkins are a light yellow, female catkins are red with tufts of violet styles. |
| Fruit Description | Short, erect and have wingless seeds. |