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CCDB → Angiosperms → Hypericaceae → Hypericum → Hypericum × arnoldianum Rehd.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Hypericum × arnoldianum Rehd. | Hypericum × arnoldianum Rehder | 18 | Fedorov, 1974 | Hoar, Haertl 1932 |