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Picea abies, the Norway spruce [2] or European spruce, [3] is a species of spruce native to Northern, Central and Eastern Europe. [ 4 ] It has branchlets that typically hang downwards, and the largest cones of any spruce , 9–17 cm long.
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 ...
Picea obovata, the Siberian spruce, is a spruce native to Siberia, from the Ural Mountains east to Magadan Oblast, and from the Arctic tree line south to the Altay Mountains in northwestern Mongolia. It is a medium-sized evergreen tree growing to 15–35 m tall, and with a trunk diameter of up to 1.5 m, and a conical crown with drooping ...
Picea mariana, the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada , found in all 10 provinces and all 3 territories . It is the official tree of the province of Newfoundland and Labrador and is that province's most numerous tree.
The peg-like base of the needles, or pulvinus, in Norway spruce (Picea abies) Pulvini remain after the needles fall (white spruce, Picea glauca). Determining that a tree is a spruce is not difficult; evergreen needles that are more or less quadrangled, and especially the pulvinus, give it away.
In the wild, Picea pungens grows to as much as 50 meters (164 ft) in height, [6] but more typically 30 m (98 ft) tall. [7] When planted in parks and gardens it most often grows 9 to 18 m (30 to 60 ft) tall with a spread of 3 to 6 m (10 to 20 ft). [8]
Old Tjikko is recognized as the oldest living Picea abies and the fourth-oldest known clonal tree. The age of the tree was determined by carbon dating of genetically matched plant material collected from under the tree, as dendrochronology does not work for clonal trees.
Picea schrenkiana, Schrenk's spruce, [1] or Asian spruce, [1] is a spruce native to the Tian Shan mountains of Central Asia (in Kazakhstan and Kyrgyzstan) and also to western China . [1] It grows at elevations of 1,200–3,500 m (3,900–11,500 ft), [ 3 ] usually in pure forests, sometimes mixed with the Tien Shan variety of Siberian fir ...