| Hydrangeaceae | |
Hydrangea arborescens fo. acarpa
| H. St. John | Rhodora 23(273): 208 | 1921 [1922] |
| Hydrangeaceae | |
Hydrangea arborescens fo. arborescens
| | | |
| Hydrangeaceae | |
Hydrangea arborescens subsp. arborescens
| | | |
| Hydrangeaceae | |
Hydrangea arborescens var. arborescens
| | | |
| Hydrangeaceae | |
Hydrangea arborescens var. australis
| Harb. | Amer. Midl. Naturalist 11(5): 255 | 1928 |
| Hydrangeaceae | |
Hydrangea arborescens var. deamii
| H. St. John | Rhodora 23(273): 208 | 1921 [1922] |
| Hydrangeaceae | |
Hydrangea arborescens subsp. discolor
| (Ser.) E.M. McClint. | J. Arnold Arbor. 37(4): 373 | 1956 |
| Hydrangeaceae | |
Hydrangea arborescens var. discolor
| Ser. | Prodr. 4: 14 | 1830 |
| Hydrangeaceae | |
Hydrangea arborescens fo. grandiflora
| Rehder | Mitt. Deutsch. Dendrol. Ges. 16: 71 | 1907 [1908] |
| Hydrangeaceae | |
Hydrangea arborescens var. kanawhana
| Millsp. | Bull. West Virginia Agric. Exp. Sta. 363 | 1892 |
| Hydrangeaceae | |
Hydrangea arborescens var. oblonga
| Torr. & A. Gray | Fl. N. Amer. 1(4): 591 | 1840 |
| Hydrangeaceae | |
Hydrangea arborescens subsp. radiata
| (Walter) E.M. McClint. | J. Arnold Arbor. 37(4): 373 | 1956 |
| Hydrangeaceae | |
Hydrangea arborescens fo. sterilis
| (Torr. & A. Gray) H. St. John | Rhodora 23(273): 208 | 1921 [1922] |
| Hydrangeaceae | |
Hydrangea arborescens var. sterilis
| Torr. & A. Gray | Fl. N. Amer. 1(4): 591 | 1840 |
| Hydrangeaceae | * |
Hydrangea arborescens var. vulgaris
| (Michx.) Ser. | Prodr. 4: 14 | 1830 |