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White Spruce Picea glauca

 

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White Spruce
credit: Joseph O'Brien, USDA Forest Service, Bugwood.org/CCSA

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Family: Pinaceae, Pine view all from this family



Description Large native coniferous, evergreen tree. Crown narrow, spire like, cylindric in older trees. Bark thin, scaly, flaking off in small circular plates 5 to 10 cm. across. Shoots pale buff-brown, hairless. Needles 12 to 20 mm. long, thin, four sided, blue-green. Cones reddish, maturing to pale brown, pendulous, slender cylindrical, 3 to 7 cm. long, opening to 2.5 cm. broad. Scales thin, flexible 15 mm. long, with a smoothly rounded margin. Seeds black, 2 to 3 mm. long. Wing long, slender, pale brown, 5 to 8 mm.


Dimensions Height: 12-30 m. (40-100 ft.)
Diameter: 0.3-0.6 m. (1-2 ft.).


Habitat Canyons & valleys, Mountains.


Range Mid-Atlantic, Plains, New England, Eastern Canada, Alaska, Rocky Mountains, Great Lakes, Western Canada.


Discussion Also known as Canadian spruce, skunk spruce, cat spruce, Black Hills spruce, western white spruce, Alberta white spruce, and Porsild spruce. White Spruce is of major economic importance in Canada where harvested for paper-making. It is also used as a Christmas tree.


 

 

 

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