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Swiss pine

'pinus' cembra
Zirbe01.jpg
Swiss pine growing on the Dachstein, Austria
Scientific classification
Kingdom: Plantae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Pinaceae
Genus: Pinus
Subgenus: Strobus
Species: P. cembra
Binomial name
Pinus cembra
L.
Pinus cembra range.svg
Distribution

Pinus cembra, also known as Swiss pine, Swiss stone pine or Arolla pine or Austrian stone pine or just Stone pine, is a species of pine tree that grows in the Alps and Carpathian Mountains of central Europe, in Poland (Tatra Mountains), Switzerland, France, Italy, Austria, Germany, Slovenia, Slovakia (Tatra Mountains), Ukraine and Romania. It typically grows at 1,200 metres (3,900 ft) to 2,300 metres (7,500 ft) altitude. It often reaches the alpine tree line in this area. The mature size is typically between 25 metres (82 ft) and 35 metres (115 ft) in height, and the trunk diameter can be up to 1.5 metres (4.9 ft). The species is long-lasting and can reach an age between 500 and 1000 years. However, it grows very slowly and it may take 30 years for the tree to reach 1.3 metres (4.3 ft).

It is a member of the white pine group, Pinus subgenus Strobus, and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, with a deciduous sheath. The needle-like leaves are 5 centimetres (2.0 in) to 9 centimetres (3.5 in) long. The cones, which contain the seeds (or nuts), of the Swiss pine are 4 centimetres (1.6 in) to 8 centimetres (3.1 in) long. The 8 millimetres (0.31 in) to 12 millimetres (0.47 in) long seeds have only a vestigial wing and are dispersed by spotted nutcrackers.

The very similar Siberian pine (Pinus sibirica) is treated as a variety or subspecies of Swiss pine by some botanists. It differs in having slightly larger cones, and needles with three resin canals instead of two as in the Swiss pine.


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Wikipedia

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