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The Douglas fir (Pseudotsuga menziesii) [4] is an evergreen conifer species in the pine family, Pinaceae.It is native to western North America and is also known as Douglas-fir, [5] Douglas spruce, [6] Oregon pine, [7] and Columbian pine. [8]
Coast Douglas-fir seed cone, from a tree grown from seed collected by David Douglas Pseudotsuga menziesii var. menziesii has attained heights of 393 feet (120* m). That was the estimated height of the tallest conifer ever well-documented, the Mineral Tree ( Mineral, Washington ), measured in 1924 by Dr. Richard E. McArdle, [ 7 ] former chief of ...
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.
Douglas-fir forests are found on gentle slopes, north-facing slopes, ridges with deep soil, and river terraces with deep sediments, usually underlain with sedimentary rocks. Coast Douglas-fir (Pseudotsuga menziesii ssp. menziesii) is the predominant tree, occupying up to 70% of the forest cover. Broadleaf evergreen trees are relatively few.
Coast Douglas-fir is the fourth tallest conifer and fifth tallest of all trees in the world (after sitka spruce).Currently, coast Douglas-fir trees 60–75 metres (197–246 ft) or more in height and 1.5–2 metres (4.9–6.6 ft) in diameter are common in old growth stands, [4] and maximum heights of 100–120 metres (330–390 ft) and diameters up to 4.5–5.5 metres (15–18 ft) have been ...
Cedar hemlock douglas-fir forest is a vegetation association in California, United States. This is one of the Kuchler system forest types used to classify California plant communities. [1] As the name implies, dominant tree types are Incense cedar, Western Hemlock and Douglas fir. The forest type is classified FRES20 in the Kuchler system. [2]
Santa Lucia fir (Abies bracteata) and seven other native Abies species. Douglas fir (Pseudotsuga menziesii) Bigcone Douglas-fir (Pseudotsuga macrocarpa) - Central Coast and Santa Susana Mountains. California nutmeg (Torreya californica) Incense cedar (Calocedrus decurrens) Port Orford cedar-Lawson cypress (Chamaecyparis lawsoniana)
Coast Douglas-firs (Pseudotsuga menziesii var. menziesii) are nearly always associated with redwoods, but in the north the forests can also include Sitka spruce (Picea sitchensis), western hemlock (Tsuga heterophylla) and western red cedar (Thuja plicata). Like coast Douglas-fir, tanoak (Notholithocarpus densiflorus) is often