Pseudotsuga menziesii |
Pseudotsuga menziesii var. glauca |
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Douglas-fir |
pino real Colorado, Rocky Mountain Douglas-fir |
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Habit | Giant forest trees up to 90 m. tall, with drooping branches and erect leader. | |
Bark | Bark dark brown, rough, ultimately very thick; branchlets pubescent for several years. |
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Leaves | Needles 2-3 cm. long, yellow-green to bluish-green, retained 7-10 years; two white stripes on the underside of the needles, none above. |
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Cones | Staminate cones sessile, 6-10 mm. long, yellow to reddish; ovulate cones ovoid, deciduous as a unit, 4-10 cm. long, pendent, yellowish- to purplish-green when young, becoming reddish-brown, soon deciduous; the bracts long-exerted, 4-7 mm. broad across the 3-lobed tip, the middle lobe much the longest. |
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Pseudotsuga menziesii |
Pseudotsuga menziesii var. glauca |
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Habitat | Moist to dry areas from sea level to mid-elevations in the mountains, occasionally to timberline. | Moist to dry areas from sea level to mid-elevations in the mountains, occasionally to timberline. |
Distribution | Widely distributed in forested areas on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta and Colorado.
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Occurring from Okanogan County to the eastern counties in Washington; central British Columbia to Mexico, east to the Rocky Mountains. |
Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
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