Also called green spruce and white spruce.  Part of spruce  genus Picea and 🌲︎ cedar / fir / hemlock / larch / pine / spruce  family Pinaceae.

Native to USA 🗻︎ Rocky Mountains:  Colorado and Wyoming.  Has been widely planted outside this area, as an ornamental. Invasive > in USA+Canada Invasive > report it!

Uses by native peoples
(Ethnobotany database)
  Picea hosts caterpillars of 158 species
of butterflies and moths, in some areas.

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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