Also called green spruce and white spruce.

Part of spruce  genus Picea in 🌲︎ cedar / fir / hemlock / larch / pine / spruce  family Pinaceae.

Native to USA 🗻︎ Rocky Mountains:  Colorado (as in its common name), Wyoming, Idaho, Utah, Arizona and New Mexico.   🌎︎ Map (scroll down) 🌎︎ Map (.pdf).   Invasive > in USA+Canada Invasive > report it!   🌲︎ State tree of Colorado.

Uses by native peoples
(Ethnobotany database)

Picea hosts caterpillars of 158 species
of butterflies and moths, in some areas.

Outside the 🗻︎ Rocky Mountains, has been widely planted as an ornamental.  In Michigan, many ◼︎ Colorado blue spruce are dying or suffering from spruce decline, apparently caused by fungal diseases Rhizosphaera needlecast  Rhizosphaera kalkhoffii, cytospora canker  Leucostoma kunzei and Sphaeropsis tip blight  Diplodia pinea;   and insect diseases gall adelgid  Adelges cooleyi and spruce spider mite  Olibonhychus ununguis.

Learn more about ◼︎ Colorado blue spruce Picea pungens

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