R. mekongense var mekongense Viridescens Group
Species
| Subgenus | Rhododendron |
| Section | Rhododendron |
| Subsection | Trichoclada |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | evergreen |
| Hardiness | ? |
| Subgenus | Rhododendron |
| Section | Rhododendron |
| Subsection | Trichoclada |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | evergreen |
| Hardiness | ? |