| Name | Philadelphus microphyllus var. argyrocalyx (Wooton) Henrickson |
| Authorship | (Wooton) Henrickson |
| Rank | Variety |
| Placed in | Philadelphus microphyllus A. Gray |
| Citation | 2007 J. Bot. Res. Inst. Texas 1(2): 901 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Philadelphus microphyllus var. argyrocalyx (Wooton) Henrickson |
| Identification made in | 2009 (4), 2010 (1) |
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