Douglas-fir

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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 ?
In all cases, however, weight losses were only slightly below 25 percent, suggesting that thermal modification had only a marginal effect on durability of Douglasfir.
Douglasfir (Pseudotsuga menziesii) and bigleaf maple (Acer macrophyllum) are the dominant trees with the presence of grand fir (Abies grandis), western hemlock (Tsuga heterophylla) and western redcedar (Thuja plicata) (Akay et al.
Contrasting microclimates among clearcut, edge, and interior old-growth Douglasfir forest.
25 ha, and each was severely infested with Douglasfir dwarf mistletoe; however, the severity of the infestations of dwarf mistletoe was not evaluated.
garryana) woodland, and (3) mixed conifer/hardwood forest dominated by Douglasfir (Pseudotsuga menziesii), Pacific madrone (Arbutus menziesii), and California black oak (Q.
Changes in Organic Components for Fallen Logs in Old-growth Douglasfir Forests Monitored by 13C Nuclear Magnetic Resonance Spectroscopy', Can.
After the spruce budworms work for a while, weakening the stand, they're followed by the Douglasfir bark beetle," said Averill.
Engineering properties of Douglasfir lumber reclaimed from deconstructed buildings.
Pretreatment of laminations is typically used for waterborne treatment of southern pine, but it is less suitable for Douglasfir because the material must be planed between treatment and lamination, and this process removes a substantial proportion of the treated zone.
Examination of profiles of the probability of bark loss along each stem showed no apparent trend for the Douglasfir samples for all months in which data were gathered, all points along the stem having similar probability of losing bark.
Determination of relative economic weights for multi-trait selection of coastal Douglasfir.
Performance of gelatin-encapsulated methylisothiocyanate in Douglasfir poles.