R. arboreum ssp arboreum 'Alan Campbell-Johnson'
Species selection of R. arboreum ssp arboreum
| Selected By | Thornton, R.E. |
| Introduced | 2003 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Minimum Hardiness | ? |
| Selected By | Thornton, R.E. |
| Introduced | 2003 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Minimum Hardiness | ? |