| Name | Rhododendron agastum I. B. Balfour & W. W. Smith |
| Authorship | I. B. Balfour & W. W. Smith |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Rhododendron Linnaeus |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Rhododendron agastum I. B. Balfour & W. W. Smith |
| Identification made in | [no date] (5) |