| Name | Rhododendron chartophyllum f. praecox Diels |
| Authorship | Diels |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Rhododendron chartophyllum Franchet |
| Citation | 1912 Notes Roy. Bot. Gard. Edinburgh 5: 217 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Rhododendron chartophyllum f. praecox Diels |
| Identification made in | [no date] (1) |
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