The Sitka spruce zone is a lowland zone dominated by Sitka spruce and western hemlock. The black check in western hemlock is the result of insect attacks. The state tree is the western hemlock. Yellow cedar places third in abundance and western hemlock becomes increasingly significant with decreasing elevation. This area lies within the coastal western hemlock (CWH) biogeoclimatic zone. Trees include primarily Sitka spruce, western redcedar, Douglas-fir, and western hemlock. The lower elevation consists mainly of western red-cedar, Douglas fir, and western hemlock. Longmire is surrounded by old-growth Douglas fir, western red cedar and western hemlock. The scenic area includes of old growth spruce, Douglas-fir, and western hemlock. Western hemlock is a dominant climax species throughout. "Tsuga heterophylla" (western hemlock) is occasionally found. The dominant trees are limited to Sitka spruce, western hemlock and mountain hemlock. Alaska cedar, western redcedar, and western hemlock are climax associates on some sites. The most common tree species are sitka spruce and western hemlock. The infection also affects rhubarb, snowdrops, white meadowfoam, western hemlock, Douglas-fir and cannabis.