| Name | Rhododendron maius (J. J. Smith) Sleumer |
| Authorship | (J. J. Smith) Sleumer |
| Rank | Species |
| Placed in | Rhododendron Linnaeus |
| Citation | 1960 Reinwardtia 5: 120 |
| Holdings | 15 Specimens held in the Harvard University Herbaria identified as Rhododendron maius (J. J. Smith) Sleumer |
| Identification made in | [no date] (15) |