Dec 4, 2025 · Paleobotanist Jack A. Wolfe of the United States Geological Survey at Menlo Park, California, has found a number of tropical rain forest fossils along the eastern Gulf of Alaska. These …

Dec 4, 2025 · The Klukwan giant belies the belief that trees tend to get smaller the farther north one goes. Both balsam poplar and cottonwood have value for fuel wood, pulp and lumber.

Dec 4, 2025 · Why take a chance with exotics, when native trees have proven their ability to survive? Several reasons prompt testing of foreign tree species. Human activities often create and maintain …

Nov 6, 2025 · Greek scholars knew a great deal about pines, for these trees occupied a prominent place in the landscape. The oldest known living organism is a bristlecone pine found in California--it is over …

Nov 20, 2025 · Burls weaken trees but do not kill them. The weakening effect, however, makes the trees vulnerable to other diseases which can kill them. Relatively little is known about burls, for several …

Sep 21, 1995 · In a drunken forest, trees--often pipe-cleaner black spruce--tilt in all directions like a group of rowdy revelers stumbling along the street. Unlike pendulous pub patrons, drunken forests …

Nov 27, 2024 · Stan Boutin has climbed more than 5,000 spruce trees in the last 30 years. He has often returned to the forest floor knowing if a ball of twigs and moss within the tree contained newborn red …

Dec 4, 2025 · When one of these trees finds itself on a better site, however, it shows a remarkable change of pace. Individual tamarack growing in white spruce stands may achieve a size comparable …

Aug 16, 2010 · The Alaska champion black spruce tree stands on the campus of the University of Alaska Fairbanks. The tree lives in a mixed forest next to large white spruce trees, mature birch and a few …

Sep 11, 2014 · From the solution of liquid leaves, they determined that a sugary red pigment was indeed present in red and orange aspens, but not in yellow aspens. The scientists hinted that the red occurs …