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The red vole nests almost exclusively in the foliage of the trees, typically 2–50 metres (5–165 ft) above the ground, and its diet consists chiefly of Douglas-fir needles. [13] Douglas-fir needles are generally poor browse for ungulates, although in the winter when other food sources are lacking it can become important, and black-tailed ...
Coast Douglas-fir is the second-tallest conifer in the world (after coast redwood), and the third-tallest of all trees, (after Eucalyptus regnans).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. ...
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 ...
The trees are a variety of needle-leaved and broad-leaved evergreen species. Characteristic trees include coast Douglas-fir (Pseudotsuga menziesii var. menziesii), canyon live oak (Quercus chrysolepis), tanoak (Notholithocarpus densiflorus), madrone (Arbutus menziesii), California bay laurel (Umbellularia californica), and golden chinquapin ...
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.
The tree produces spiky green fruits about the size of a golf ball, which turn brown and drop off the tree over an extended period beginning in fall and continuing over the winter.
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]