R. kosterianum
Natural Hybrid
| Seed Parent | R. molle ssp molle |
| Pollen Parent | R. molle ssp japonicum |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | Evergreen |
| Minimum Hardiness | ? |
| Seed Parent | R. molle ssp molle |
| Pollen Parent | R. molle ssp japonicum |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | Evergreen |
| Minimum Hardiness | ? |