Douglas-fir - Photos Copyright Ward Cameron 2003 - Click to view a larger image Douglas-fir - Photos Copyright Ward Cameron 2003 - Click to view a larger image Douglas-fir - Photos Copyright Ward Cameron 2003 - Click to view a larger image Douglas-fir - Photos Copyright Ward Cameron 2003 - Click to view a larger image 
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Trees ( Needles Flat )
Pine Family (Pinaceae)

Douglas-fir
Pseudotsuga menziesii

Season: 
Habitat:
 Montane on both sides of Continental Divide
Height:
 Up to 40 m

Description: This tree defines the true montane zone. It thrives in Chinook blasted valleys like the Bow, North Saskatchewan and Athabasca. On the eastern slopes, the tree is not found north of Brule Lake at the eastern entrance to Jasper National Park. It does occur more northerly along the moist western slopes. A thick cork layer protects it from all but the hottest forest fires, allowing the Douglas-fir to live a very long life. This, in turn helps make it one of the largest trees on the eastern slopes. Its cones are distinctive with three tipped bracts between each cone scale. The needles are flat and fir-like, yellow-green above and paler below.

Douglas-fir are not true firs, and can be distinguished by their unique cones. also, their buds are very sharply pointed as opposed to the blunt buds of the western hemlock, and the rounder, resin coated buds of the alpine fir. Also, unlike western hemlock, the needles tend to be similar in length while those of the hemlock vary dramatically.

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All Material Ward Cameron 2005

 

 

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