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CCDB → Angiosperms → Betulaceae → Betula → Betula papyrifera var. macrostachya Fernald
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Betula papyrifera var. macrostachya Fernald | Betula papyrifera Marshall | 70, 84 | IPCN65 | Brittain & G. 1965 |