Ponderosa Pine (Pinus ponderosa)

Pinus ponderosa, commonly known as the ponderosa pine or western yellow pine, is a very large pine tree of variable habit native to the western United States and Canada. It grows in various erect forms from British Columbia southward and eastward through 16 western states. It has been successfully introduced in temperate regions of Europe. A Pacific ponderosa pine in the Siskiyou National Forest in Oregon was measured with a laser to be 268.35 ft (81.79 m) high. Like most western pines, the ponderosa generally is associated with mountainous topography but not always. The fire cycle for ponderosa pines is five to 10 years, in which a natural ignition sparks a low-intensity fire. Ponderosa pine is a major source of timber, and ponderosa pine forests are also important as wildlife habitat, for recreational use, and for esthetic values. Souce: Pondersosa Pine (Pinus ponderosa)