What is the scientific name for Western Hemlock?

The scientific name for Western Hemlock is Tsuga heterophylla. This name reflects the species’ classification in the Tsuga genus, which encompasses several types of hemlock trees. The specific epithet "heterophylla" translates to "different leaves," which describes this tree's characteristic foliage that varies in shape and size.

Understanding the characteristics and classification of Western Hemlock is essential since it's a significant tree species in the Pacific Northwest, known for its ecological importance and unique qualities. The other options refer to different species: Tsuga mertensiana is known as Mountain Hemlock, Pseudotsuga menziesii is the scientific name for Douglas Fir, and Chamaecyparis pisifera refers to Japanese False Cypress. Each of these species differs in habitat, morphology, and ecological function compared to Western Hemlock, underlining the importance of accurate identification in horticulture.