R. rugosum var rugosum
Species
| Subgenus | Rhododendron |
| Section | Vireya |
| Subsection | Euvireya |
| Introduced | 1964 |
| First Described | 1852 ( Low ) |
| Origin | Malaysia (Borneo), Mount Kinabalu, Mount Trus Madi and Mount Alab, 2000-3500 meter |
| Epiphytic/Terrestrial | epiphytic+terrestrial |
| Mature Wild Height | 700 cm. (23ft.) |
| Bloom Time | ? |
| Flower | tubular funnel-shaped |
| Flower Color | pink |
| Fragrance | ? |
| Leaves | elliptic |
| Leaf persistence | Evergreen |
| Minimum Hardiness | ? |
