Common Names Douglas Fir (Hitchcock et al., 1969). Synonyms Pinus taxifolia Lamb., Abies douglasii Hort. ex Loud., Abies trigona Raf., Abies mucronata var. palustris Raf., Tsuga lindleyana Roezl, Tsuga douglasii var. glauca Biessn., Pseudotsuga taxifolia var. elongata Lemmon, Pseudotsuga douglasii var. caesia Schwerin, Pseudotsuga douglasii var. viridis Schwerin, Pseudotsuga vancouverensis Flous. Plant tree. 70 m tall. Bark thick and rough. Dark brown. Leaves needle like. Single. 2–3 cm long. Alternate. Monomorphic. Leaf scar texture oval. Stomatal lines present. Lower surface. Two bands separated by prominent midvein. Sexuality monecious. Female strobili cones (not berry-like). Ovoid, ellipsoid, and cylindric. 4–10 cm long. Reddish brown, or yellowish to purplish-green. Near ends of branches. Pendant. Female strobili bracts mouse tail shaped. Female strobili scale rounded. Three lobed. Seed 0.5–0.6 cm long. Broad wing up to twice as long as seed. Male strobili shape unknown. 0.6–1 cm long. Yellow to reddish. Axillary.
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