Tree net knots. One tree, of course, proves nothing.

Tree net knots. After infestation, the leaves appear silvery from a distance. These annual growth rings are easily discernible (and countable) in cross-sections of the tree's trunk. Each spring, small yellow pustules appear on the new needles of the broom. Jul 31, 2025 · They think the fierce, silent conflict has probably benefited both the insect population and a tree that’s been under siege in Interior Alaska for a long time. Its nearest rival, a tree near Salem, Oregon, does hold the national height record. The Klukwan giant belies the belief that trees tend to get smaller the farther north one goes. Since northern Canada and interior Alaska share the same grueling climate and extremes of daylength, why are the Canadian tree species absent from I eventually found a tree with a spiral lightning mark and it followed the spiral grain exactly. A strong sweet odor, which is easily recognizable, usually accompanies the maturation of these pustules. Oak, ash, and elm endure occasional severely cold temperatures in the contiguous forty-eight states because they can produce chemicals that serve as natural antifreeze. As its name implies, the feltleaf sprouts canoe-shaped green leaves that feel fuzzy on the underside. Yet the tree was still alive, with just one rope of cambium — the outer bark that transports water and nutrients — snaking up the trunk. Leaf miners are moth larvae that stencil the surfaces of aspen leaves with their transparent tracks. Burls, spherical woody growths on the trunks of spruce, birch and other trees, are commonly found throughout wooded parts of Alaska. Annually, the tree adds new layers of wood which thicken during the growing season and thin during the winter. One tree, of course, proves nothing. The Klukwan giant holds the national record for black cottonwood diameter. Northern Canadian forests have all of those, plus jack pine, balsam fir and lodgepole pine. A tree's age can be easily determined by counting its growth rings, as any Boy or Girl Scout knows. . In good growing years, when sunlight and rainfall are plentiful, the growth rings Jul 23, 2021 · A tree near one of our campsites had a crack at its base through which we could pass the folded saw. May 25, 2023 · The most plentiful moose food in the state — and probably Alaska’s most numerous tree — is the feltleaf willow, which was once called the Alaska willow. The Klukwan giant holds the national record for black cottonwood diameter. A few of its blue-green feathery leaves flagged from the top of what otherwise looked like a snag. Apr 1, 1993 · Back on the ground, I did a little research on why so few tree types grow naturally in the neighborhood. Winter's extreme cold easily eliminates some tree species hardy elsewhere. Witches' broom on spruce trees is caused by a rust disease (a kind of fungus disease). Both balsam poplar and cottonwood have value for fuel wood, pulp and lumber. The rust lives on the spruce tree throughout the year. Interior Alaskan forests have only six native tree species: white spruce, black spruce, quaking aspen, balsam poplar, larch (tamarack) and paper birch. "But why should the tree spiral? More speculation here: Foliage tends to be thicker on the south side of the tree because of better sunlight. zyap mawxbi bluv sks nzsgq ymjm uimp ubjxmcy verz opfodnv