R. 'metternichii x hyperythrum'
Rhododendron Hybrid
| Hybridized By | Unknown |
| Seed Parent | R. degronianum ssp degronianum |
| Pollen Parent | R. hyperythrum |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | ? |
| Minimum Hardiness | ? |
| Registration | Unregistered |
