Pseudotsuga macrocarpa typically grows from 15 – 30 m ( 50 – 100 feet ) in height and 0. 5-1. 5 m ( 2 – 5 feet ) in trunk diameter.

Pseudotsuga macrocarpa is restricted to the California montane chaparral and woodlands and California coastal sage and chaparral ecoregions of California.

Pseudotsuga macrocarpa, has several features to tolerate and survive wildfire, notably the very thick bark, and the presence of numerous adventitious buds on the upper side of the branches ; this enables the trees to survive even crown fires which burn off all the branchlets, the apparently dead trees becoming green again the following spring.

Pseudotsuga macrocarpa populations are currently stable, with favorable rates of reproduction.

* Gymnosperm Database: Pseudotsuga macrocarpa

es: Pseudotsuga macrocarpa

Tree species for which the forest is important include bigcone Douglas-fir ( Pseudotsuga macrocarpa ), Coulter Pine ( Pinus coulteri ), and California Walnut ( Juglans californica ).

Its woody plants include Abies concolor, Acer campestre, Acer Ginnala, Acer rubrum, Acer saccharinum, Acer saccharum, Aesculus hippocastanum, Betula papyrifera, Catalpa speciosa, Celtis occidentalis, Cercis canadensis, Cornus alba ‘ argenteo marginata ’, Crataegus crusgalli, Euonymus alatus ‘ Compactus ’, Fraxinus americana ‘ Autumn Purple ’, Fraxinus pennsylvanica, Ginkgo biloba, Gymnocladus dioicus, Juniperus virginiana, Juniperus virginiana ‘ Taylor ’, Magnolia soulangiana, Malus spp., Phellodendron amurense, Picea abies, Picea pungens glauca, Pinus mugo, Pinus nigra, Pinus ponderosa, Pinus strobus, Pinus sylvestris, Platanus occidentalis, Populus deltoides, Prunus padus, Pseudotsuga menziesii, Quercus bicolor, Quercus macrocarpa, Quercus palustris, Quercus robur, Quercus rubra, Rhus spp., Spiraea spp., Syringa spp., Taxodium distichum, Taxus cuspidata, Tilla euchlora, Ulmus americana, and Viburnum lentago.

Other coniferous trees, such as White Fir, bigcone Douglas-fir ( Pseudotsuga macrocarpa ), Incense Cedar, and Western Juniper also thrive here.

Rocky Mountain Douglas-fir is most commonly treated as a variety ( Pseudotsuga menziesii var.

In Washington and Oregon, marbled murrelets commonly nest in Douglas-fir ( Pseudotsuga menziesii ) dominated stands.

glauca ), but has also been called a subspecies ( Pseudotsuga menziesii subsp.

The Old Norse name is still used for pines in some modern north European languages, in Danish, fyr, in Norwegian fura / fure / furu, Swedish, fura / furu, and Föhre in German, but in modern English, fir is now restricted to Fir ( Abies ) and Douglas-fir ( Pseudotsuga ).

Douglas-fir is one of the English common names for evergreen coniferous trees of the genus Pseudotsuga () in the family Pinaceae.

Some Bigcone Douglas-fir-Douglas-fir ( Pseudotsuga menziesii ) hybrids show promise for outplanting on drier sites in the Douglas-fir region.

Pseudotsuga menziesii, known as Douglas-fir ( in the UK, ' Douglas fir ' without the hyphen ), Oregon pine, or Douglas spruce, is an evergreen conifer species native to western North America.

One variety, coast Douglas-fir ( Pseudotsuga menziesii var.

* C. Michael Hogan ( 2008 ) Douglas-fir: Pseudotsuga menziesii, globalTwitcher. com, ed.

* Photo Tour: Douglas-fir, Pseudotsuga menziesii – Institute for Redwood Ecology, Humboldt State University

Further west towards the Pacific coast, it is replaced by the related coast Douglas-fir ( Pseudotsuga menziesii var.

Mexican Douglas-fir ( Pseudotsuga lindleyana ) trees cover the high plateaus in altitudes over, but due to deforestation in the area, many species of wildlife are endangered.

The temperate coniferous rain forests sustain the highest levels of biomass in any terrestrial ecosystem and are notable for trees of massive proportions, including Coast Redwood ( Sequoia sempervirens ), Douglas-fir ( Pseudotsuga menziesii ), Sitka Spruce ( Picea sitchensis ), Alerce ( Fitzroya cupressoides ) and Kauri ( Agathis australis ).

Soras were observed at low abundances on a site with Douglas-fir ( Pseudotsuga menziesii ), ponderosa pine ( Pinus ponderosa ), and trembling aspen ( Populus tremuloides ) in British Columbia.

* C. Michael Hogan ( 2008 ) Douglas-fir: Pseudotsuga menziesii, globalTwitcher. com, ed.

One of the most prominent is the Coastal Douglas-fir ( Pseudotsuga menziesii ) forest, which includes Coast live oak, Tanoak, and California bay and reaches across the southern half of Inverness Ridge toward Bolinas Lagoon.

Western tanager nesting was confined to older 2nd-growth (> 40 years ) and mature ( 120 + years ) Douglas-fir ( Pseudotsuga menziesii ) communities in the western Cascade Range in Oregon.

Prior to mining operations commencing there, the mountains were heavily forested with large Rocky Mountain Douglas-fir ( Pseudotsuga menziesii glauca ) and other conifers, but these were all cut down for housing needs and to feed the ore smelting furnaces in Douglas, Arizona, approximately 20 miles due east.

Conifer species in the Klamath Mountains include Coast Douglas-fir ( Pseudotsuga menziesii ssp.

Northern Spotted Owls occur in ponderosa pine / Douglas-fir ( Pinus ponderosa / Pseudotsuga menzeizii ) forests in the eastern Cascade Ranges of Washington and in Douglas-fir / evergreen hardwood forests in northwestern California.

Red alder is associated with coast Douglas-fir Pseudotsuga menziesii subsp.

Finally, alpine uplands known as ' The Bowl ' exceeding elevations of are clothed with denser forests of ponderosa pine ( Pinus ponderosa ), southwestern white pine ( Pinus flexilis ), and Rocky Mountain Douglas-fir ( Pseudotsuga menziesii subsp.

In the other ecoregions, Coast Douglas-fir ( Pseudotsuga menziesii var.

), Chinese yew ( Taxus chinensis ), Taiwan Hemlock ( Tsuga chinensis ), and Taiwan Douglas-fir ( Pseudotsuga sinensis var.

The forests in the north contain predominantly Sitka Spruce and Western Hemlock, while those in the coastal forests are home as well to Coast Redwood ( Sequoia sempervirens ), Coast Douglas-fir ( Pseudotsuga menziesii ), Western Redcedar and Shore Pine.

It is brittle when bent, so does not have the same load bearing features as Oregon pine ( Douglas fir, Pseudotsuga ).

Cathaya is a member of the subfamily Laricoideae, most closely related to Pseudotsuga and Larix.

The disease is of particular interest to forest managers, as the species is highly pathogenic to a number of commercial softwoods, notably Douglas-fir ( Pseudotsuga menziesii ), true firs ( Abies spp.

Douglas-fir ( Pseudotsuga ) is a host plant common to many species of the family, particularly of the genus Chionodes which is consequently more diverse in North America than usual for Gelechioidea.

Menzies ' name is commemorated in the scientific names of several of the plants he discovered, including Menziesia, a genus of shrubs in the Ericaceae, and the Douglas-fir Pseudotsuga menziesii, the most commercially important tree in western North America.

It is particularly useful in regeneration of tree species such as Douglas-fir ( Pseudotsuga menziesii ) which is shade intolerant.

More recently, the oak / madrone forest is being succeeded by specimens of large Douglas fir ( Pseudotsuga menziesii ) as in the image above.

The ecoregion is characterized by the Coast Redwood ( Sequoia sempervirens ); redwood forests are interspersed with several other plant communities, including northern coastal grasslands and northern coastal scrub in the immediate coastal zone and on hilltops, mixed evergreen forest of Coast Douglas-fir ( Pseudotsuga menziesii var.