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CCDB → Angiosperms → Betulaceae → Betula → Betula pubescens subsp. borealis (Spach) Á. Löve & D. Löve
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| Betula pubescens subsp. borealis (Spach) Á. Löve & D. Löve | Betula pumila L. | 56 | IPCN online | Love, A. & D. Love. 1982. In: IOPB chromosome number reports LXXVI. Taxon 31: 583–587. | |||
| Betula pubescens subsp. borealis (Spach) Á. Löve & D. Löve | Betula pumila L. | 56 | IPCN online | Love, A. & D. Love. 1975b. In IOPB chromosome number reports XLIX. Taxon 24: 501–516. |