Picea (Spruce) Identification

Hello! I’ve been trying to ID conifers found in Ohio lately, and noticed a lot of observations of Picea that need ID. What are the differences (without cones) between P. abies and P. glauca, and P. glauca and P. pungens? Are most blue spruces in the nursery trade P. glauca or P. pungens? Not sure if this is the right place to ask, but this is the only option I have.

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Here is a resource for Picea: https://www.conifers.org/pi/Picea.php
There are links to descriptions of the species you mention.

This site is also useful for other conifers.

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Thank you!

Here’s another good resource for the spruces of Maine:
https://www.maine.gov/dacf/mfs/publications/handbooks_guides/forest_trees/pdf/Spruce.pdf

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