Which of the following species is known as Coast Redwood?

The species known as Coast Redwood is Sequoia sempervirens. This tree is native to the coastal regions of northern California and southern Oregon, thriving in the specific climatic conditions found there. Coast Redwoods are renowned for their impressive height and longevity, often reaching heights of over 300 feet and living for more than a thousand years.

The distinction of Sequoia sempervirens lies not only in its height but also in its unique, towering structure and reddish-brown bark, which is thick and resistant to fire and pests. This adaptability to its environment contributes significantly to its ecological role and makes it a notable species within forest ecosystems.

Other options, while also significant in their own right, represent different genera and species. For example, Sequoiadendron giganteum, commonly known as the Giant Sequoia, is known for its massive size but is not the same as Coast Redwood. The Thuja plicata, or Western Red Cedar, and Tsuga heterophylla, known as Western Hemlock, represent different tree families and have distinct characteristics and habitat preferences. Therefore, Sequoia sempervirens is the correct identification for Coast Redwood.