Apr 10, 2025 · Poplar leaves are larger--2-1/2 to 4-1/2 inches long--and broadly lance-shaped, shiny dark green above and pale green to brownish below. The cottonwood leaf is very similar …

Apr 10, 2025 · Interior Alaskan forests have only six native tree species: white spruce, black spruce, quaking aspen, balsam poplar, larch (tamarack) and paper birch. Northern Canadian …

Nov 16, 2017 · Signs of the American beaver in Alaska: A cut poplar tree on the upper Tanana River and a dam on Phelan Creek near Isabel Pass in the Alaska Range. Ned Rozell photos. …

Jun 18, 2021 · The two-acre exotic tree plantation is part of a much-larger “boreal arboretum” on the UAF campus, which mostly consists of native spruce, birch, aspen, poplar and willow …

Aug 16, 2010 · The tallest trees are not always the winners of The Big Tree Challenge; foresters score trees on height, circumference and the spread of a tree’s crown. The black spruce on …

Mar 27, 2025 · Obviously there is a greater chance of wide variation in the leaves growing from those trees and shrubs such as poplar and highbush cranberry that have indeterminate shoot …

Jun 28, 2018 · Just beneath the owl box, hung 20 feet up the stem of a balsam poplar, the backyard barbeque continued late into the evening. Despite the thwap of badminton birdies …

Mar 27, 2014 · POKER CREEK — On this south-facing hillside bathed in spring sunshine, trees are swelling like hot dogs.

May 5, 1999 · The first step in a tree's reproductive dance is to release sperm, held in the center of a pollen grain. Trees release an incredible amount of pollen to improve the odds of finding a …

Mar 1, 2012 · The red flat bark beetle lives as far north as there are balsam poplar trees in Alaska, hunkering down for the winter in the moist area between dead bark and tree. Scientists like …