| Name | Rhododendron orbiculatum Ridley |
| Authorship | Ridley |
| Rank | Species |
| Placed in | Rhododendron Linnaeus |
| Citation | 1912 J. Straits Branch Roy. Asiat. Soc. 63: 60 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Rhododendron orbiculatum Ridley |
| Identification made in | [no date] (8) |