Picea Picea: Description of the genus of the spruce tree, including taxonomy, range, ethnobotany, and the largest and oldest known specimens. Links to information on some species. (Picea) http://www.botanik.uni-bonn.de/conifers/pi/pic/index.htm
Picea rubens Picea rubens: Distribution and Occurrence; Value and Use; Characteristics; Fire Ecology (Picea) http://www.fs.fed.us/database/feis/plants/tree/picrub/
Picea pungens Picea pungens: Information on distribution and occurrence, value and use, characteristics, and fire ecology. (Picea) http://www.fs.fed.us/database/feis/plants/tree/picpun/
Picea engelmannii Picea engelmannii: Distribution and Occurrence; Value and Use; Characteristics; Fire Ecology (Picea) http://www.fs.fed.us/database/feis/plants/tree/piceng/
Additional
Information: The genus Picea is commonly known as spruce.
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