| Hydrangeaceae | |
Cardiandra alternifolia var. amamiohsimensis
| (Koidz.) Masam. | Hokuriku J. Geobot. 5: 8 | 1956 |
| Hydrangeaceae | |
Cardiandra alternifolia var. binata
| F. Maek. | | |
| Hydrangeaceae | |
Cardiandra alternifolia fo. formosa
| Honda | Pl. Jap. ed. emend.: 375 | 1975 |
| Hydrangeaceae | |
Cardiandra alternifolia var. hakonensis
| H. Ohba | in Fl. Japan 2b: 95 | 2001 |
| Hydrangeaceae | |
Cardiandra alternifolia fo. mirabilis
| (Takeda) Sugim. ex H. Ohba | J. Jap. Bot. 60: 167 | 1985 |
| Hydrangeaceae | |
Cardiandra alternifolia var. mirabilis
| Takeda | Bot. Mag. (Tokyo) 24: 65 | 1910 |
| Hydrangeaceae | |
Cardiandra alternifolia subsp. moellendorffi
| (Hance) H. Hara & H. Ohba | | |
| Hydrangeaceae | |
Cardiandra alternifolia var. moellendorffii
| Engl. | Nat. Pflanzenfam., ed. 2 18(a): 201 | 1930 |
| Hydrangeaceae | |
Cardiandra alternifolia fo. multiplex
| Hayashi | J. Geobot. 22: 4 | 1974 |
| Hydrangeaceae | |
Cardiandra alternifolia fo. oppositifolia
| (Honda) Maek. | J. Jap. Bot. 25: 158 | 1950 |
| Hydrangeaceae | |
Cardiandra alternifolia var. oppositifolia
| Honda | Bot. Mag. (Tokyo) 44: 318 | 1930 |
| Hydrangeaceae | |
Cardiandra alternifolia fo. ramosa
| Hayashi | Bull. Gov. Forest Exp. Sta. 125: 75 | 1960 |