| Name | Hydrangea arborescens subsp. arborescens |
| Authorship | |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Hydrangea arborescens Linnaeus |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hydrangea arborescens subsp. arborescens |
| Identification made in | [no date] (2) |
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