branchlets droop, cones=long (10-15 cm) (4-6 in)   >   Norway spruce Picea abies

some branchlets droop, others splay horizontal;  needles very sharp   >   Colorado blue spruce Picea pungens

buds and twigs=hairless;  needles=blue-green   >   white spruce Picea glauca

buds and twigs=hairy;  needles=blunt-pointed, short (<1 cm) (<½ in)   >   black spruce Picea mariana
buds and twigs=hairy;  needles=medium (>1 cm) (>½ in)   >   red spruce Picea rubens

Learn more about spruce genus Picea

Uses by native peoples
(Ethnobotany database)
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