The size, shape, color and texture of the cones of Picea confirm the identity of the species. Even the scale margin features can be important. Utilizing Manual of Woody Landscape Plants: Their Identification, Ornamental Characteristics, Culture, Propagation and Uses by Michael Dirr (or other reputable source) study the botanical descriptions of spruce cones to become proficient in species identification.
Karren Wcisel, TreeTopics.com
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Pinaceae, tree, conifer, cone, needle, evergreen, Picea pungens, Colorado spruce, blue spruce