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CCDB → Angiosperms → Hypericaceae → Hypericum → Hypericum hakonense Franch. & Sav.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Hypericum hakonense Franch. & Sav. | Hypericum hakonense Franch. & Sav. | 16 | IPCN online | Kogi, M. 1984. A karyomorphological study of the genus Hypericum (Hypericaceae) in Japan. Bot. Mag. (Tokyo) 97: 333–343. |