Pseudotsuga menziesii var. menziesii

coast species

PinaceaePseudotsuga

Coast Douglas-fir or Oregon pine is in the pine or Pinaceae family and is native to western North America from west-central British Columbia, Canada southward to central California in the United States. The name of the coastal variety is Pseudotsuga menziesii var. menziesii.

It is the second tallest conifer after coast redwood, with documented individuals recorded with a height of up to 120 m. Because the Douglas-fir is not a true fir (i.e., Abies genus), the common name is hyphenated.

  • Needle-like leaves are 25–30 mm long and 1.2–1.5 mm across, flat and spirally arranged with a groove above and 2 white bands of stomata below; buds are 4–8 mm long, narrow conic shape and pointed.
  • Species is monoecious; male pollen cones are oblong, 2–3 cm long, red turning to pale yellow near ends of branches, dispersing yellow pollen in spring; females are reddish with long bracts, near branch tips in spring.
  • Mature female cones are pendant, 5–8 cm long, 2–3 cm broad when closed, opening to 4 cm broad. They are produced in spring, green at first, maturing orange-brown in the autumn 6–7 months later. The cones have defining "snake's tongues" or long three-pronged bracts between scales.
  • Bark on young trees is thin and has numerous resin blisters, somewhat resembling young Abies amabilis; on mature trees, the bark is thick, deeply grooved and corky, with dark reddish-brown ridges.

Contributors

  • Nathan Willson
  • Philippe de Spoelberch