| Name | Betula nana subsp. exilis (V. N. Sukacev) Hultén |
| Authorship | (V. N. Sukachev) Hultén bis |
| Rank | Subspecies |
| Placed in | Betula nana Linnaeus |
| Citation | 1944 Acta Univ. Lund. 2, 40, nr. 1: 579 |
| Holdings | 25 Specimens held in the Harvard University Herbaria identified as Betula nana subsp. exilis (V. N. Sukacev) Hultén |
| Identification made in | [no date] (25) |
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