| Name | Philadelphus lewisii var. angustifolius (Rydberg) S. Y. Hu |
| Authorship | (Rydberg) S. Y. Hu |
| Rank | Variety |
| Placed in | Philadelphus lewisii Pursh |
| Citation | 1955 J. Arnold Arbor. 36(1): 79 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Philadelphus lewisii var. angustifolius (Rydberg) S. Y. Hu |
| Identification made in | [no date] (1) |
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