| Name | Philadelphus ×maximus Rehder |
| Authorship | Rehder |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Philadelphus |
| Citation | 1914 Mitt. Deutsch. Dendrol. Ges. 1913(22): 255 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Philadelphus ×maximus Rehder |
| Identification made in | [no date] (1), 2019 (1) |
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