western hemlock

noun

a tall, narrow hemlock, Tsuga heterophylla, of western North America: the state tree of Washington.

Examples from the web for western hemlock

Another dominant tree of the river valleys is western hemlock.
On the wetter west side of the park, silver fir becomes a major player along side western hemlock.
western hemlock can be identified by its foliage and cones.
The western white pine grew in abundance on the hillsides while the flats were covered with western red cedar and western hemlock.
Other conifers include grand fir, western larch and western hemlock.
The units lie in the western hemlock vegetation zone.

British Dictionary definitions for western hemlock

noun

a North American coniferous evergreen tree, Tsuga heterophylla, having hanging branches and oblong cones: family Pinaceae