Pinus cembra

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Pinus cembra
Zirbe01.jpg
Swiss pine growing on the Dachstein, Austria
Conservation status
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, also known as Swiss pine, Swiss stone pine or Arolla 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) .

Seeds with and without their shell

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.

Cones of Pinus cembra

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.

Like other European and Asian white pines, Swiss pine is very resistant to white pine blister rust (Cronartium ribicola). This fungal disease was accidentally introduced from Europe into North America, where it has caused severe mortality in the American native white pines in many areas, notably the closely related whitebark pine. Swiss pine is of great value for research into hybridisation to develop rust resistance in these species.

Uses[edit]

Beds and furniture made of Pinus cembra are very popular within the Alpine region of Europe as scientific studies of Joanneum Research in 2003 have shown that exposure to a Swiss Stone Pine can improve sleep by saving you up to 3,500 heart beats per night making nights more restful and restorative. Studies also indicate that beds made of Swiss Stone Pine tend to reduce meteorsensitivity (see external link 3 and 4).

The Swiss pine is a popular ornamental tree in parks and large gardens, giving steady though not fast growth on a wide range of sites where the climate is cold. It is very tolerant of severe winter cold, hardy down to at least −50 °C (−58 °F), and also of wind exposure. The seeds are also harvested and sold as pine nuts and can be used to flavor schnapps (see Ref. 2).

The wood is the most used for carvings in Val Gardena since the 17th century.

The cone of the Swiss pine was the field sign of the Roman legion stationed in Rhaetia in 15 BC, and hence it is used as the heraldic charge (known as Zirbelnuss in German) in the coat of arms of the city of Augsburg, the site of the Roman fort Augusta Vindelicorum.

It is also a species that is often used in bonsai.

References[edit]

External links[edit]