| Name | Hydrangea arborescens var. deamii H. St. John |
| Authorship | H. St. John |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Hydrangea arborescens Linnaeus |
| GUID | urn:lsid:ipni.org:names:125038-2 |
| Citation | 1921 Rhodora 23: 208 |
| Holdings | 75 Specimens held in the Harvard University Herbaria identified as Hydrangea arborescens var. deamii H. St. John |
| Identification made in | [no date] (55), 1950 (20) |