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Pinus ponderosa, commonly known as the ponderosa pine, [3] bull pine, blackjack pine, [4] western yellow-pine, [5] or filipinus pine, [6] is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.
Old growth ponderosa pine in Lost Forest. Lost Forest covers approximately 9,000 acres (36 km 2). It is a self-sustaining stand of ponderosa pines growing in the arid high desert, 40 miles (64 km) from the nearest contiguous pine forest. The Bureau of Land Management considers 4,153 acres (1,681 ha) to be prime forest land with large old-growth ...
Jeffrey pine wood and ponderosa pine wood are sold together as yellow pine. [6] Both kinds of wood are hard (with a Janka hardness of 550 lbf (2,400 N)), but the western yellow pine wood is less dense than southern yellow pine wood (28 lb/cu ft (0.45 g/cm 3 ) versus 35 lb/cu ft (0.56 g/cm 3 ) for shortleaf pine).
Ponderosa pine forest is a plant association and plant community dominated by ponderosa pine and found in western North America. It is found from the British Columbia to Durango, Mexico . [ 1 ] In the south and east, ponderosa pine forest is the climax forest , while in the more northern part of its range, it can transition to Douglas-fir or ...
The Big Tree (also known as the Trout Lake Big Tree) was a massive Ponderosa pine tree in an old-growth pine and fir forest in southern Washington state, [1] at the southern base of Mount Adams. The area is managed by the Mount Adams Ranger District of the Gifford Pinchot National Forest .
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From 7,200 to 7,800 ft (2,200 to 2,400 m), in the Transition Zone, Ponderosa Pine dominates, and evergreen oaks change to more cold-tolerant deciduous oaks. From 7,800 to 9,800 ft (2,400 to 3,000 m), a mixture of conifers occurs in the Canadian Zone ; Gambel oak ( Quercus gambelii ) is at its upper natural range in this zone.