Douglas-fir


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Related to Douglas-fir: Pseudotsuga menziesii, Pseudotsuga

Douglas-fir

[¦dəg·ləs ′fər]
(botany)
Pseudotsuga menziesii. A large coniferous tree in the order Pinales; cones are characterized by bracts extending beyond the scales. Also known as red fir.
References in periodicals archive ?
And yet, as if to indicate how all must be useful, the great Douglas-firs lend their wood for our ships, factories and homes.
Douglas-fir (Pseudotsuga menziesii), ponderosa pine (Pinus ponderosa), and northern red oak (Quercus rubra) lumber was cut into clear samples measuring 25 by 75 by 127 mm long.
Following discoveries in the middle 1980s that immature embryos from Norway spruce seeds could be propagated or cloned in culture using somatic embryogenesis, we started a well-funded research and development program using this technology for both loblolly pine and Douglas-fir.
The Spanaway mill produces 100 million board feet of green Douglas-fir dimension lumber annually and has approximately 120 employees.
The timberlands to be transferred to Scotia exclude harvesting rights with respect to virgin old growth redwood and Douglas-fir timber.
In the forest, most Douglas-fir trees have green branches along the upper third of their trunks.
The pews are made using red oak and the impressive 5,000 pipe organ also uses Douglas-fir.
Over the past decade Jerry and Sam have logged through some 600 acres of ponderosa pine, Douglas-fir, tamarack, and grand-fir.
In Oregon, Weyerhaeuser will donate 1,000 of the potted Douglas-firs to an urban Portland planting group, "Friends of Trees," which will give them away Saturday, April 21, in the North Park Blocks, when the group celebrates the conclusion of its five-year "Seed the Future" campaign.
Quantification of seasonal bark loss for two Oregon commercial tree species, Douglas-fir (Pseudotsuga menziesii) and ponderosa pine (Pinus ponderosa), was conducted at monthly intervals beginning in late October to early November 2009 and finishing in August 2010.
When Apollo 14 launched January 31, 1971, Roosa carried with him hundreds of loblolly pine, sycamore, sweetgum, redwood, and Douglas-fir seeds.
Volunteer Sarah Haque helped load bags containing 30,000 Douglas-fir seedlings, which the Corps will use for projects with the Department of Transportation, stream teams and local fisheries.