| Name | Hydrangea anomala subsp. petiolaris (Siebold & Zuccarini) McClintock |
| Authorship | (Siebold & Zuccarini) McClintock |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Hydrangea anomala D. Don |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Hydrangea anomala subsp. petiolaris (Siebold & Zuccarini) McClintock |
| Identification made in | [no date] (4), 1956 (2) |