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The blue spruce (Picea pungens), also commonly known as 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. [4] 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 ...
Recently, we have seen a frequent decline in blue spruce in Ohio due to a variety of insects, disease pathogens and environmental conditions. While blue spruce is favored by insects such as ...
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of Leucostoma canker (also known as Cytospora canker or spruce canker), a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).
However, genetic variations within these species have allowed some varieties to be grown in climates that differ substantially from the climate where the species originated. The Eastern White pine is native to the eastern U.S. The Colorado Blue Spruce is native to Colorado and Utah. The White spruce is native to the north-central U.S. and Canada.
Prettiest Christmas Tree: Colorado Blue Spruce A Western species, the Colorado Blue spruce is known for its unique bluish-gray hue. Other benefits: limited shedding and an attractive symmetrical ...
Sitka spruce: Picea sitchensis: 1962 [2] [3] American Samoa: None [4] Arizona: Blue palo verde: Parkinsonia florida: 1954 [5] [6] Arkansas: Loblolly pine: Pinus taeda: 1939 [7] California: Coast redwood: Sequoia sempervirens: 1937 [8] [9] Giant sequoia: Sequoiadendron giganteum: Colorado: Colorado blue spruce: Picea pungens: 1939 [10 ...
A list of tree species, grouped generally by biogeographic realm and specifically by bioregions, and shade tolerance. Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants.
Douglas-firs grow in a broad range from Mexico to British Columbia, generally from near lower treeline upward in elevation to spruce-fir forests. In Colorado, the species ranges from about 5,410 to 8,860 feet (1,650 to 2,700 m) and is often found in mixed stands with ponderosa pine, blue spruce, or lodgepole pine. Like ponderosa pine, Douglas ...