| Name | Philadelphus incanus f. hupehensis Koehne |
| Authorship | Koehne |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Philadelphus incanus Koehne |
| Citation | 1911 Repert. Spec. Nov. Regni Veg. 10: 127 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Philadelphus incanus f. hupehensis Koehne |
| Identification made in | [no date] (1) |
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