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Picea mariana - http://www.fs.fed.us/database/feis/plants/tree/picmar/all.html
Information on distribution and occurrence, value and use, characteristics, and fire ecology. |
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Picea mariana (Black Spruce) - http://www.borealforest.org/trees/tree7.htm
Describes habitat and details of physical characteristics. Provides photos. |
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Picea mariana (Black Spruce) - http://www.for.gov.bc.ca/hfd/library/documents/treebook/blackspruce.htm
Describes the habitat, physical characteristics, and human uses of this species. Provides photos of entire tree, cones, leaves, and bark. |