Kolorado-Tanne
Conifer species in the Klamath Mountains include coast Douglas-fir ("Pseudotsuga menziesii" ssp. "menziesii"), Port Orford cedar, ponderosa pine ("Pinus ponderosa"), sugar pine ("Pinus lambertiana"), mountain hemlock ("Tsuga mertensiana"), white fir ("Abies concolor" var. "lowiana"), red fir ("A. magnifica" var. "shastensis"), Brewer spruce, coast redwood ("Sequoia sempervirens"), western red cedar ("Thuja Plicata"), and Pacific yew ("Taxus brevifolia").