R. planecostatum
Species
| Subgenus | Rhododendron |
| Section | Vireya |
| Subsection | Euvireya |
| First Described | 1960 ( Sleumer ) |
| Origin | Malaysia, Sabah Mt. Kinabalu and the Crocker Range 1300 - 1700m |
| Epiphytic/Terrestrial | epiphytic+terrestrial |
| Mature Wild Height | 100 cm. (3ft.) |
| Bloom Time | late |
| Flower | cylindrical |
| Flower Color | orange |
| Fragrance | ? |
| Leaves | elliptic |
| Leaf persistence | Evergreen |
| Minimum Hardiness | ? |
| Additional Hardiness Info |
H1 |