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Angiospermae
6
Betulaceae: Dicotyledones
Plantae
Salicaceae: Dicotyledones
6
Spermatophyta
6
USA
Angiosperms
5
Coniferopsida: Gymnospermae
5
Dicots
5
Plants
5
Spermatophytes
5
Vascular Plants
5
Alaska
4
Forest Sciences
4
Gymnosperms
4
Animalia
3
Animals
3
Betula Papyrifera
3
Alces alces
2
Artiodactyls
2
Cervidae: Artiodactyla
2
Chordata
2
Chordates
2
Mammalia
2
Mammals
2
Nonhuman Mammals
2
Nonhuman Vertebrates
2
Populus Tremuloides
2
Temperature
2
Vegetation types
2
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