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CCDB → Angiosperms → Hydrangeaceae → Hydrangea → Hydrangea kawagoeana Koidz.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Hydrangea kawagoeana Koidz. | Hydrangea chinensis Maxim. | 36 | IPCN online | Akiyama, S. 1989. Chromosome numbers of the species in Hydrangea chinensis--complex in the Ryukyu Islands. J. Jap. Bot. 64: 353–360. |