| Name | Rhododendron macrosepalum Maximowicz |
| Authorship | Maximowicz |
| Rank | Species |
| Placed in | Rhododendron Linnaeus |
| Citation | 1870 Bull. Acad. Imp. Sci. Saint-Pétersbourg 15(2): 228 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Rhododendron macrosepalum Maximowicz |
| Identification made in | [no date] (1) |