R. uvariifolium var griseum
Species
| Subgenus | Hymenanthes |
| Section | Pontica |
| Subsection | Fulva |
| In cultivation since | 1924 |
| First Described | 1953 (Cowan) |
| Origin | Tsangpo area Tibet 2300-4000 meter |
| Habitat | terrestrial |
| 10 Year Height | ? |
| Mature Wild Height | 700 cm. (23ft.) |
| Bloom Time | early |
| Flower | ? |
| Predominant Colour | white |
| Leaves | ? |
| Winter Foliage | evergreen |
| Hardiness | H4 |
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