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Pseudotsuga

File:Pseudotsuga_menziesii_28236.JPG · Wikimedia Commons · See Wikimedia Commons

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Pseudotsuga

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Pseudotsuga () is a genus of evergreen coniferous trees in the family Pinaceae (subfamily Laricoideae). Common names for species in the genus include Douglas fir, Douglas-fir, Douglas tree, Oregon pine and Bigcone spruce. Pseudotsuga menziesii (Douglas fir proper) is widespread in western North America and is an important source of timber. The number of species has long been debated, but two in western North America and two to four in eastern Asia are commonly acknowledged.

Species

Pseudotsuga

GENUS

  1. KingdomPlantae
  2. PhylumTracheophyta
  3. ClassPinopsida
  4. OrderPinales
  5. FamilyPinaceae
Observations recorded167,570

via GBIF · Kew POWO

Wikidata facts

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Pseudotsuga menziesii 28236.JPG
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taxon name
Pseudotsuga
Commons category
Pseudotsuga
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Pseudotsuga
taxon common name
duglazija
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Article

11 sections
Contents
  • Name
  • Description
  • Taxonomy
  • North America
  • Asia
  • Formerly placed in ''Pseudotsuga''
  • Uses
  • Pests and diseases
  • Culture
  • References
  • External links

Pseudotsuga () is a genus of evergreen coniferous trees in the family Pinaceae (subfamily Laricoideae). Common names for species in the genus include Douglas fir, Douglas-fir, Douglas tree, Oregon pine and Bigcone spruce. Pseudotsuga menziesii (Douglas fir proper) is widespread in western North America and is an important source of timber. The number of species has long been debated, but two in western North America and two to four in eastern Asia are commonly acknowledged.

Nineteenth-century botanists had problems in classifying Douglas firs, due to the species' similarity to various other conifers better known at the time; they have at times been classified in Pinus, Picea, Abies, Tsuga, and even Sequoia. Because of their distinctive cones, Douglas firs were finally placed in the new genus Pseudotsuga (meaning "false hemlock") by the French botanist Carrière in 1867. The genus name has also been hyphenated as Pseudo-tsuga.

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