R. tosaense 'Ralph Clarke'
Species selection of R. tosaense
| Selected By | Clarke, S.R. , Borde Hill, West Sussex , England, 1978 |
| Subgenus | Tsutsusi |
| Section | Tsutsusi |
| Subsection | |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |