Thursday, December 8, 2011

Pine Tree and Mountain range, White Cloud Scenic Area, Huangshan, Anhui, China

Pines are trees in the genus Pinus in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115 species of pine, although different authorities accept between 105 and 125 species.

Uses
Pines are among the most commercially important of tree species, valued for their timber and wood pulp throughout the world. In temperate and tropical regions, they are fast-growing softwoods that will grow in relatively dense stands, their acidic decaying needles inhibiting the sprouting of competing hardwoods. Commercial pines are grown in plantations for timber that is denser, more resinous, and therefore more durable than spruce (Picea). Pine wood is widely used in high-value carpentry items such as furniture, window frames, paneling, floors and roofing, and the resin of some species is an important source of turpentine.
Many pine species make attractive ornamental plantings for parks and larger gardens, with a variety of dwarf cultivars being suitable for smaller spaces. Pines are also commercially grown and harvested for Christmas trees. Pine cones, the largest and most durable of all conifer conesare craft favorites. Pine boughs, appreciated especially in wintertime for their pleasant smell and greenery, are popularly cut for decorations. A number of species are attacked by nematodes, causing pine wilt disease, which can kill some quickly. Pine needles are also used for making decorative articles like baskets, trays, pots, etc. This Native American skill is now being replicated across world. Pine needle handicrafts are made in the US, Canada, Mexico, Nicaragua and India. Pine needles serve as food for various Lepidoptera. See List of Lepidoptera which feed on Pines.
Because pines have no insect or decay resistant qualities after logging, they are generally recommended for construction purposes as indoor use only (ex. indoor drywall framing). This wood left outside can not be expected to last more than 12–18 months depending on the type of climate it is exposed to. It is commonly referred to by several different names which include North American timber, SPF (spruce, pine, fir) and whitewood.

Food uses

Some species have large seeds, called pine nuts, that are harvested and sold for cooking and baking.
The soft, moist, white inner bark (cambium) found clinging to the woody outer bark is edible and very high in vitamins A and C. It can be eaten raw in slices as a snack or dried and ground up into a powder for use as a thickener in stews, soups, and other foods, such as Finnish pine bark bread (pettuleipä). Adirondack Indians got their name from the Mohawk Indian word atirú:taks, meaning "tree eaters".
A tea made by steeping young, green pine needles in boiling water (known as "tallstrunt" in Sweden) is high in vitamins A and C.
Pinus sylvestris prepared for transport,Hungary
Edible seeds of the Korean Pine (Pinus koraiensis)

 


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