| Name | Hydrangea aspera subsp. robusta (Hooker f. & Thomson) E. M. McClintock |
| Authorship | (Hooker f. & Thomson) E. M. McClintock |
| Rank | Subspecies |
| Placed in | Hydrangea aspera D. Don |
| Citation | 1956 J. Arnold Arbor. 37: 373 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Hydrangea aspera subsp. robusta (Hooker f. & Thomson) E. M. McClintock |
| Identification made in | [no date] (3) |
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