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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.
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The tree was 202 feet (62 m) tall [2] [3] with a diameter of 7 feet (210 cm), [4] and was one of the largest known Ponderosa pines in the world. [1] After stress by attacks from mountain pine beetles [4] its death in 2015 was confirmed the following year. [5]
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).
The Willamette Valley ponderosa variant only grows on the valley floor, unlike the Douglas-fir, which grows on hillsides, and the wood is softer and easier to mill than the native hardwoods. [1] Because of this, when early settlers used wood from the trees to build homes and cleared land for agriculture, the population was "decimated". [ 1 ]
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 ...
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Young spring growth ("candles") on a loblolly pine: Monterey pine bark: Monterey pine cone on forest floor: Whitebark pine in the Sierra Nevada: Hartweg's pine forest in Mexico: The bark of a pine in Tecpan, Guatemala: A pine, probably P. pseudostrobus, in Guatemala