| Downy Birch (Betula pubescens) | | 1024 | 2488 | 112 | 2024-06-13 |
| Birch (Betula sp.) | | 63 | 185 | 100 | 2024-04-25 |
| Silver birch (Betula pendula) | | 24 | 48 | 22 | 2022-10-17 |
| Dwarf Birch (Betula nana) | | 9 | 23 | | 2020-05-10 |
| Dvergbjørk (Betula nana subsp. nana) | | 6 | 17 | 8 | 2024-05-20 |
| Dunbjørk (Betula pubescens subsp. pubescens) | | 3 | 3 | 1 | 2023-09-06 |
| Lavlandsbjørk (Betula pendula var. pendula) | | 2 | 4 | 1 | 2024-05-07 |
| Fjellbjørk (Betula pubescens subsp. tortuosa) | | 2 | 4 | 3 | 2019-09-17 |
| Lapplandsbjørk (Betula pendula var. lapponica) | | 1 | 1 | | 2022-09-15 |
| Tundrabjørk (Betula nana subsp. tundrarum) | | 1 | 1 | 1 | 2015-06-04 |
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