미송-Pseudotsuga menziesii

과명	Pinaceae (소나무과)	속명	Pseudotsuga (미송속)
전체학명	[정명] Pseudotsuga menziesii (Mirb.) Franco	추천명	미송
이명		외국명	Christmas tree,Fir Douglas,Dougalas fir,Green douglas fir

Douglas-fir is a large conifer, evergreen tree in the Pinaceae (pine) family that grows 40 to 80 feet tall when cultivated but as tall as 300 feet in the wild. It is one of the largest trees in the world, and one of the most important timber species in the United States. Young trees have a narrow and spired pyramidal shape with lower branches drooping and upper branches ascending. As the tree matures, it becomes cylindrical, loses its lower branches and resulting in branching only at the top third of the tree. This tree has unique forked cone bracts that is distinctly different from many other conifers. The cones are about 3 to 4 inches long and pendulous. The needles are flat, spirally arranged, dark green and up to 1.25 inches long with white banding on the undersides. They are fragrant when bruised or crushed.

It is native to Southwestern British Columbia to West Central California. The Douglas-fir is the State tree of Oregon. It grows best in northern or northwestern climates of the United States. The species is found in coastal areas in elevations up to 5500 feet, foothills, lower mountains, cool mesas, and in some subalpine areas.. It is intolerant to the heat and high humidity of the Piedmont and Coastal Plains of North Carolina. The trees are grown with success in the mountains of North Carolina and sold as Christmas trees.

The genus name, Pseudotsuga, is derived from two Greek words, pseudo, meaning false or untrue, and tsuga, meaning hemlock which references to the fact that it is often confused with hemlock trees. The epithet, menziesii, is in honor of Archibald Menzies, a naval surgeon and botanist from Scotland. The common name, Douglas Fir, honors David Douglas who was a Scottish botanist. He introduced this tree and many other plants to Great Britain for cultivation.

Plant it in full sun, acidic to neutral, moist, well-drained, organically rich soil.  Keep it well watered since it is intolerant to drought. It is easy to transplant when it is small. The Douglas-fir is intolerant to heat, humidity, and warm temperatures at night.

 There are two distinctly different geographic varieties of the Douglas-fir. Coast Douglas-fir or var. menziesii is a large tree with dark yellow-green needles, large cones that is found on the Pacific coast.. The Rocky Mountain Douglas-fir or var. glauca is a medium-sized tree with shorter bluish-green needles, and small cones. Dwarf cultivars are available commercially. .

Blue Douglas Fir - Pseudotsuga menziesii | North Carolina Extension Gardener Plant Toolbox (ncsu.edu)

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