Traité Gén. Conif., ed. 2 256. 1867.

Etymology: Greek pseudo, false, and tsuga, hemlock
Treatment appears in FNA Volume 2.

Trees conic, evergreen. Bark initially smooth, with resin blisters; in age reddish brown, corky, furrowed. Branches often pendulous, irregularly whorled; short (spur) shoots absent; leaf scars transversely elliptic, slightly raised proximally but essentially flush with twig distally. Buds elongate, not resinous, apex acute. Leaves borne singly, persisting 6–8 years, alternate, short-stalked, flattened; resin canals 2, marginal. Cones borne on year-old twigs. Pollen cones axillary. Seed cones maturing first season, shed whole, deflexed or pendent, ellipsoid, ovoid, or cylindric, nearly sessile, lacking apophysis and umbo; scales persistent, apex rounded; bracts ± exserted, apex 3-lobed, lobes with acute apices, central lobe narrow, longer than lateral lobes. Seeds winged; cotyledons 6–12. x =12, 13.


North America, 3 in e Asia.


Species 5 (2 in the flora).


1 Leaf apex mucronulate; seed cones 9-20 cm; sw California. Pseudotsuga macrocarpa
1 Leaf apex obtuse to acute; seed cones 4-10 cm; widely distributed in w North America. Pseudotsuga menziesii