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The Douglas squirrel harvests and hoards great quantities of Douglas-fir cones, and also consumes mature pollen cones, the inner bark, terminal shoots, and developing young needles. [13] Mature or "old-growth" Douglas-fir forest is the primary habitat of the red tree vole (Arborimus longicaudus) and the spotted owl (Strix occidentalis).
Rocky Mountain Douglas-fir is a large tree, typically reaching 35–45 m (115–148 ft) in height and 1 m (3 ft 3 in) in diameter, with exceptional specimens known to 67 m (220 ft) tall, and 2 m (6 ft 7 in) in diameter. It commonly lives more than 500 years and occasionally more than 1,200 years.
Coast Douglas-fir is the second-tallest conifer in the world (after coast redwood), and the third-tallest of all trees, (after Eucalyptus regnans).Currently, coast Douglas-fir trees 60–75 metres (197–246 ft) or more in height and 1.5–2 metres (4.9–6.6 ft) in diameter are common in old growth stands, [4] and maximum heights of 100–120 metres (330–390 ft) and diameters up to 4.5–5. ...
Douglas-firs are medium-size to extremely large evergreen trees, 20–120 metres (70–390 ft) tall (although only coast Douglas-firs reach such great height). [6] The leaves are flat, soft, linear, 2–4 centimetres (0.8–1.6 in) long, generally resembling those of the firs, occurring singly rather than in fascicles ; they completely encircle ...
Pseudotsuga macrocarpa typically grows from 15–30 m (49–98 ft) in height and 56–155 cm (1 ft 10 in – 5 ft 1 in) in trunk diameter. [6] The growth form is straight, with a conical crown from 12–30 m (39–98 ft) broad, and a strong and spreading root system.
It is of some interest that an earlier timber cruise along the Nooksack river in 1891, 15 miles west of Loop's Ranch, by two Sumas lumbermen and surveyors, John M. Saar, and S. H. Soule, reported standing Douglas-fir trees measuring from 9 to 14 feet in diameter, estimated at 350 to 400 feet in height. [8]
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The Red Creek Fir is a large Douglas fir ... The Red Creek Fir has a diameter of 4.2 m (14 ft), a circumference of 9.8 m (32 ft), and a height of 73.8 m (242 ft). ...
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