The black check in western hemlock is the result of insect attacks.

Western hemlock has a good rate of survival on a wide range of conditions.

At one time it was thought to be a hybrid with western hemlock, but there is no verified evidence for this.

The western hemlock lacks the hardiness demanded in the east.

Western Hemlock responds well to release after long periods of suppression.

The most common tree species are sitka spruce and western hemlock.

Tsuga heterophylla, western hemlock, is the state tree of Washington.

It is not uncommon to find western hemlocks growing in a row on a nurse log.

Western red cedar and western hemlock are the desired seedlings.

Douglas fir occurs alongside western hemlock on south facing slopes.

Alaska's predominate species is the western hemlock and Sitka spruce.

The island has Sitka spruce and western hemlock.

As well, the park contains many western hemlock, western redcedar and Douglas-fir.

Surrounding the mountain are forests of Western hemlock and Douglas fir trees.

The state tree is the Western Hemlock.

Single-tree selection is a good method to keep the western hemlock and western red cedar on the site.

Common vegetation seen on the trail includes Douglas-fir, western hemlock, vine maple, and large cedar tree.

Prescribed burning would also damage the thin bark of both western hemlock and red cedar girdling the trees.

Both western red cedar and western hemlock are able to reproduce by some form of vegetative reproduction.

Forest vegetation is dominated by large Douglas-fir, western hemlock and western red cedar.

Common trees include Western hemlock and Douglas fir.

Black check in western hemlock.

Western hemlock boughs are used to collect herring eggs during the spring spawn in southeast Alaska.

Fruit bodies of Ramaria acrisiccescens grow on the ground under western hemlock, typically in mixed forests.

The dominant trees are limited to sitka spruce, western hemlock and mountain hemlock.

Trees include a huge Wellingtonia, a Sequoia and a Tsuga heterophylla.

Western Hemlock (Tsuga heterophylla)

The large conifer species would be western red cedar Thuja plicata and western hemlock Tsuga heterophylla.

In the highlands one also finds Grand fir (Abies grandis), Western hemlock (Tsuga heterophylla) and other subalpine trees.

Sporobolomyces singulari (1962) from the frass of Scolytus tsugae feeding on Western Hemlock (Tsuga heterophylla)

The Portland Oregonian picked out the western hemlock, Tsuga heterophylla for us, but Washington newspapers decided to choose their own and selected the popular western red cedar.

The fungus associates with alder, poplar and other hardwoods, and has been shown in laboratory culture to form ectomycorrhizae with Western Hemlock (Tsuga heterophylla).

The western hemlock (Tsuga heterophylla) is an extremely shade tolerant tree and it is common to find its seedlings and saplings in the understories of the forest floors.

The larvae feed on the foliage of Pinaceae species, including Abies grandis, Picea, Pinus, Pseudotsuga menziesii and Tsuga heterophylla.

In California, nests are most often located in redwood (Sequoia sempervirens) dominated stands with scattered Sitka spruce, western hemlock (Tsuga heterophylla) and Douglas-fir.

The western North American C. tubaeformis has been shown to make ectomycorrhizal relationships with western hemlock (Tsuga heterophylla) and Douglas-fir (Pseudotsuga menziesii).

The host plants are Pinus sp., Pseudotsuga taxifolia, Tsuga heterophylla, Abies balsamea, Abies grandis, and Picea sitchensis.

Neighboring species include Pseudotsuga menziesii, Picea sitchensis, Acer macrophyllum, Rhamnus purshiana, Umbellularia californica, Tsuga heterophylla, Chamaecyparis lawsoniana and Lithocarpus densiflorus.

Dr. McClure noted that the insect also exists in the Northwestern states, and has been there for the past 70 years, but there the handsome Western hemlock trees (Tsuga heterophylla) show no signs of damage from the insect.

While mature stands of lowland old-growth rainforest contain many western hemlock (Tsuga heterophylla) seedlings, and some western redcedar (Thuja plicata) seedlings, Douglas-fir dominated stands contain almost no Douglas-fir seedlings.