True Firs: The Genus Abies -
Spruce: The Genus Picea -
Pines: The Genus Pinus -
Coast Douglas-fir, Coast Douglas Fir, Douglas-fir, Douglas Fir: Pseudotsuga menziesii var. menziesii (Synonyms: Abies mucronata, Abies taxifolia, Pinus taxifolia, Pseudotsuga douglasii, Pseudotsuga mucronata, Pseudotsuga taxifolia) -
Hemlocks: The Genus Tsuga -