R. arboreum ssp cinnamomeum 'Queen of Bhutan'
Species selection of R. arboreum ssp cinnamomeum
| Selected By | Goheen. Dr. David |
| Introduced | 1985 |
| 10 Year Height | 200 cm. (7ft.) |
| Bloom Time | ? |
| Flower | funnel-campanulate |
| Predominant Colour | ? |
| Leaves | elliptic |
| Winter Foliage | ? |
| Hardiness | ? |