Tsuga heterophylla, the western hemlock or western hemlock-spruce, is a species of hemlock native to the west coast of North America, with its northwestern limit on the Kenai Peninsula, Alaska, and its southeastern limit in northern Sonoma County, California. The Latin species name means 'variable leaves'.
Tsuga heterophylla
Young specimen
Bark
Branch with mature seed cones that have released their seeds
Tsuga is a genus of conifers in the subfamily Abietoideae of Pinaceae, the pine family. The common name hemlock is derived from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock. Unlike the latter, Tsuga species are not poisonous.
Tsuga
T. canadensis boughs shedding older foliage in autumn
T. diversifolia foliage and cones in snow
T. mertensiana foliage and cones