Family: Bjørkefamilien (Betulaceae)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Åsen, Blylaget | Akershus, Norway | 1 | 1 | 0 | 2007-04-25 | |
| Åsgårdstrand | Vestfold, Norway | 1 | 1 | 0 | 2001-04-05 | |
| Åstveitvannet | Vestland, Norway | 3 | 2 | 0 | 2007-06-06 |
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