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[39] [40] Despite the shallow roots, blue spruce is able to resist strong winds. [33] Five years before transplanting, the total root surface area of 2-meter-high trees was doubled by pruning the roots of blue spruce. It also increases the root concentration in drip irrigation pipeline from 40% to 60%, which is an advantage in landscape ...
Arceuthobium pusillum is a perennial, obligate parasitic plant in the sandalwood family. [1] Its common names include Dwarf mistletoe or Eastern dwarf mistletoe.It is one of the most widespread dwarf mistletoes within its range which covers the eastern United States and Canada, from Saskatchewan to Nova Scotia and New Jersey. [2]
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 ...
Spruce is the standard material used in soundboards for many musical instruments, including guitars, mandolins, cellos, violins, and the soundboard at the heart of a piano and the harp. Wood used for this purpose is referred to as tonewood. Spruce, along with cedar, is often used for the soundboard/top of an acoustic guitar. The main types of ...
Various types of spruce tree are also used for Christmas trees (including the blue spruce and, less commonly, the white spruce); but spruces begin to lose their needles rapidly upon being cut, and spruce needles are often sharp, making decorating uncomfortable.
A mature female big-cone pine (Pinus coulteri) cone, the heaviest pine cone A young female or seed cone on a Norway spruce (Picea abies) Immature male or pollen cones of Swiss pine (Pinus cembra) A conifer cone or, in formal botanical usage, a strobilus , pl. : strobili , is a seed-bearing organ on gymnosperm plants, especially in conifers and ...
Picea glauca (Moench) Voss., the White Spruce, [4] is a species of spruce native to the northern temperate and boreal forests in Canada and United States, North America.. Picea glauca is native from central Alaska all through the east, across western and southern/central Canada to the Avalon Peninsula in Newfoundland, Quebec, Ontario and south to Montana, North Dakota, Minnesota, Wisconsin ...
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).