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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.
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.
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. Beyond that, determination can become more difficult.
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 Newfoundland and Labrador and is that province's most abundant tree.
growth rate [10] Limits for soil pH, annual precipitation and low temperature Tolerance: (D)rought (F)ire, (L)iming and (S)hade Landscapes, bark and cones with foliage Abies amabilis (Pacific silver fir) Can reach 230 ft (70 m) in height. The timber is lightweight, with low resin content.
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 ...
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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 ...