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Douglas fir

Douglas fir (*Pseudotsuga menziesii*) is an evergreen conifer in the pine family, Pinaceae, native to western North America.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Douglas fir (*Pseudotsuga menziesii*) is an evergreen conifer in the pine family, Pinaceae, native to western North America. It is one of the most important timber trees in North America and is also widely planted as an ornamental and Christmas tree. Although commonly called a fir, it is not a true fir.

Taxonomy and naming

Douglas fir belongs to the genus *Pseudotsuga* and the family Pinaceae. Its common name honours David Douglas, and its scientific name commemorates Archibald Menzies.

Description

The species is an evergreen conifer with needle-like leaves and distinctive cones. It is a large, long-lived tree and can develop into very tall specimens in suitable habitats.

Distribution and habitat

Douglas fir is native to western North America, with varieties extending through coastal and interior regions. In Canada, it occurs naturally in British Columbia and eastward into the Rocky Mountains.

Uses

Douglas fir is one of the most important timber species in North America. It is used for construction, structural lumber, boats, aircraft, pulp, and is also grown as an ornamental and Christmas tree.

Key facts

  • Douglas fir is a conifer species in the pine family, not a true fir.
  • It is among the tallest trees in the Pinaceae family and can grow to very large sizes.
  • The species is native to western North America and is especially important in coastal forests.
  • Its wood is valued for strength and used in construction and other structural applications.
  • Only *Pseudotsuga menziesii* occurs naturally in Canada.
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Canadian context

Douglas fir is native to Canada, especially in British Columbia, where it is an important forest species and timber tree.

Frequently asked questions

Is Douglas fir a true fir?
No. Despite its common name, Douglas fir is not a true fir; it belongs to the genus *Pseudotsuga*, not *Abies*.
Where is Douglas fir native to?
It is native to western North America, with related species found in parts of eastern Asia.
Does Douglas fir grow in Canada?
Yes. The species occurs naturally in Canada, especially in British Columbia and east into the Rocky Mountains.
What is Douglas fir used for?
Its wood is widely used in construction and other structural applications, and the tree is also grown as an ornamental and Christmas tree.
How tall can Douglas fir grow?
It is one of the tallest trees in the pine family and can become a very large tree in the wild.

References

  1. The Canadian Encyclopedia — https://www.thecanadianencyclopedia.ca/en/article/douglas-fir
    Supports: Canadian range, taxonomy, morphology, ecological and timber importance
  2. Wikipedia — https://en.wikipedia.org/wiki/Douglas_fir
    Supports: Scientific name, family, common names, general description
  3. Encyclopaedia Britannica — https://www.britannica.com/plant/Douglas-fir
    Supports: Genus placement, native range, uses, ornamental and Christmas tree use
  4. Natural Resources Canada — https://tidcf.nrcan.gc.ca/en/trees/factsheet/122
    Supports: Canadian distribution
  5. Naturally:wood — https://www.naturallywood.com/species/douglas-fir/
    Supports: Size, age, timber uses in British Columbia