| Name | Philadelphus inodorus f. quadranguliflorus S. Y. Hu |
| Authorship | S. Y. Hu |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Philadelphus inodorus Linnaeus |
| GUID | urn:lsid:ipni.org:names:293808-2 |
| Citation | 1955 J. Arnold Arbor. 36: 61 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Philadelphus inodorus f. quadranguliflorus S. Y. Hu |
| Identification made in | 1952 (1), 2019 (1) |