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blue spruce

a spruce, Picea pungens, of western North America, having bluish-green leaves, grown as an ornamental: the state tree of Colorado and Utah.
Also called Colorado blue spruce, Colorado spruce.
Origin of blue spruce
1880-85, Americanism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for blue spruce
  • Caution: dormant oil may cause a reduction of blue color when applied to blue spruce.
British Dictionary definitions for blue spruce

blue spruce

a spruce tree, Picea pungens glauca, native to the Rocky Mountains of North America, having blue-green needle-like leaves Also called balsam spruce
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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