| Name | Philadelphus subcanus var. dubius Koehne |
| Authorship | Koehne |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Philadelphus subcanus Koehne |
| Citation | 1911 Pl. Wilson. 1: 4 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Philadelphus subcanus var. dubius Koehne |
| Identification made in | [no date] (2) |
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