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Pseudotsuga
Family:
Pinaceae
Max Licher
FNA
Resources
Barney Lipscomb from Flora of North America (vol. 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.
Species within checklist:
Flora of the Northern Colorado Plateau Network
Pseudotsuga californica
Pseudotsuga douglasii
Pseudotsuga glauca
Images
not available
Pseudotsuga guinieri
Images
not available
Pseudotsuga japonica
Pseudotsuga macrocarpa
Pseudotsuga menziesii
Pseudotsuga rehderi
Pseudotsuga sinensis
Development supported by National Science Foundation Grants (
DBI 9983132
,
BRC 0237418
,
DBI 0743827
,
DBI 0847966
)
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