| Name | Rhododendron simsii var. mesembrinum I. B. Balfour & Forrest |
| Authorship | I. B. Balfour & Forrest |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Rhododendron simsii Planchon |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Rhododendron simsii var. mesembrinum I. B. Balfour & Forrest |
| Identification made in | [no date] (2) |