douglas fir
Noun
Meaning
tall evergreen timber tree of western North America having resinous wood and short needles
strong durable timber of a douglas fir
Source: WordNetAlternative names
Douglas-fir
Synonyms
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Examples
Adaptation by the Douglas fir created a smoother distribution of species.
Annual rainfall during a 30-year period on a bigcone Douglas-fir site in the San Gabriel Mountains averaged convert and ranged from convert.
Although it outgrows coastal Douglas-fir for the first 25 years, it is very shade intolerant and seldom lives more than 100 years.
A parasitic plant sometimes utilizing P. menziesii is Douglas-fir dwarf mistletoe (Arceuthobium douglasii).
A snag provides nest cavities for birds Douglas fir snags are abundant in forests older than 100–150 years and provide cavity-nesting habitat for numerous forest birds.
Ecology The rooting habit of coast Douglas fir is not particularly deep, with the roots tending to be shallower than those of same-aged ponderosa pine, sugar pine, or California incense-cedar, though deeper than Sitka spruce.