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Cottonwood and Balsam Poplar | Geophysical Institute
Northern Tree Habitats - Geophysical Institute
Burls - Geophysical Institute
Kannada pocket guide for Common Avenue trees of Karnataka
The largest black spruce in Alaska | Geophysical Institute
Tree line changes on the Kenai Peninsula | Geophysical Institute
The majesty and mystery of Alaska yellow cedar
Witches' Broom - Geophysical Institute
Feltleaf willows: Alaska’s most abundant tree
Tree Rings and History - Geophysical Institute