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Pseudotsuga / ˌ sj uː d oʊ ˈ t s uː ɡ ə / [1] 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 .
The common name is misleading since it is not a true fir, i.e., not a member of the genus Abies. For this reason, the name is often written as Douglas-fir (a name also used for the genus Pseudotsuga as a whole). [23] [14] The specific epithet menziesii is after Archibald Menzies, a Scottish physician and rival naturalist to David Douglas.
Pseudotsuga japonica, the Japanese Douglas-fir, is a species of conifer in the pine family, Pinaceae, that is endemic to Japan. [ 1 ] [ 3 ] [ 4 ] It is a medium-sized tree growing to 25 m (82 ft) tall. [ 3 ]
Pseudotsuga menziesii var. menziesii, commonly known as Coast Douglas-fir, Pacific Douglas-fir, Oregon pine, or Douglas spruce, is an evergreen conifer native to western North America from west-central British Columbia, Canada southward to central California, United States.
Pseudotsuga macrocarpa, commonly called the bigcone spruce or bigcone Douglas-fir, is an evergreen conifer native to the mountains of southern California. It is notable for having the largest (by far) cones in the genus Pseudotsuga , hence the name.
The Laricoideae are a subfamily of the Pinaceae, a Pinophyta division family. They take their name from the genus Larix (), which contains inside most of the species of the group and is one of only two deciduous genera of the pines complex (together with Pseudolarix, which however belongs to a different subfamily, the Abietoideae).
Pseudotsuga: Douglas-firs; Pseudotsuga japonica: Japanese Douglas-fir Pinaceae (pine family) Pseudotsuga macrocarpa: bigcone Douglas-fir Pinaceae (pine family) 201 Pseudotsuga menziesii: Douglas-fir; common douglas-fir Pinaceae (pine family) 202 Pseudotsuga menziesii subsp. glabra: blue Douglas-fir Pinaceae (pine family) Pseudotsuga sinensis ...
Pseudotsuga menziesii var. glauca, or Rocky Mountain Douglas-fir, is an evergreen conifer native to the interior mountainous regions of western North America, from central British Columbia and southwest Alberta in Canada southward through the United States to the far north of Mexico. [2]