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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.
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.
The host trees of C. piceae are mainly fir (Abies) and spruce (Picea) trees and these are most attractive to the adult beetles. [3] Fir species like Abies alba [4] and Abies procera [2] are most seriously affected, but others Abies species and Picea species are also attacked. Occasionally, other conifers, including larch, pines and Douglas fir ...
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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Abies beshanzuensis: Baishanzu fir Pinaceae (pine family) Abies borisii-regis: Bulgarian fir Pinaceae (pine family) Abies bracteata: Santa Lucia fir Pinaceae (pine family) Abies cephalonica: Greek fir Pinaceae (pine family) Abies chensiensis: Shensi fir Pinaceae (pine family) Abies cilicica: Cilician fir Pinaceae (pine family) Abies concolor ...
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