R. thomsonii ssp thomsonii 'Grandiflorum'
Species selection of R. thomsonii ssp thomsonii
| Selected By | Reuthe, G. Ltd , Ightham, Kent , England, 1909 |
| Subgenus | Hymenanthes |
| Section | Pontica |
| Subsection | Thomsonia |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |