| Name | Hydrangea tapalapensis Samain, Najarro & Esteban Martínez |
| Authorship | Samain, Najarro & Esteban Martínez |
| Rank | Species |
| Placed in | Hydrangea |
| Citation | 2019 Acta Bot. Mex. 126(e1463): 34 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hydrangea tapalapensis Samain, Najarro & Esteban Martínez |
| Identification made in | [no date] (2) |