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| Colorado blue spruce | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | Pinales |
| Family: | Pinaceae |
| Genus: | Picea |
| Species: | P. pungens
|
| Binomial name | |
| Picea pungens | |
| |
The blue spruce (Picea pungens), also commonly known as green spruce,[2] Colorado spruce, or Colorado blue spruce, is a species of spruce tree native to North America in Arizona, Colorado, Idaho, New Mexico, Utah and Wyoming.[3] It is noted for its blue-green colored needles, and has therefore been used as an ornamental tree in many places far beyond its native range.[4]
- ^ Farjon, A. (2013). "Picea pungens". IUCN Red List of Threatened Species. 2013: e.T42333A2973433. doi:10.2305/IUCN.UK.2013-1.RLTS.T42333A2973433.en. Retrieved 19 November 2021.
- ^ "Picea pungens: Blue Spruce, Colorado Blue Spruce, or Green Spruce (Pinaceae - Pine Family)".
- ^ Flora of North America Editorial Committee, editor. 1993. Flora of North America North of Mexico. Volume 2. Pteridiophytes and Gymnosperms. Oxford University Press, New York, 475 pp
- ^ "Picea pungens (blue spruce) description". www.conifers.org. Retrieved 2024-02-15.
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