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Several features are used to distinguish the subgenera, sections, and subsections of pines: the number of leaves (needles) per fascicle, whether the fascicle sheaths are deciduous or persistent, the number of fibrovascular bundles per needle (2 in Pinus or 1 in Strobus), the position of the resin ducts in the needles (internal or external), the ...
Eastern white pine has often been used for timber frames, and is available in large sizes. Eastern white pine timbers are not particularly strong, so timbers increase in size to handle loads applied. This species accepts stains better than most, but it has little rot resistance, so should be used only in dry conditions. [13]
Limber pine (Pinus flexilis), another of these species from western North America, was also sometimes known as White Pine; Chinese white pine (Pinus armandii), a species native to China; Japanese white pine (Pinus parviflora), a species native to Japan; Vietnamese white pine (Pinus dalatensis), a species native to Vietnam and Laos
Since 1970, millions of Western white pine seedlings have been planted to make up for the losses. [5] The white pine blister rust (Cronartium ribicola) is a fungus that was accidentally introduced from Europe in 1909. The United States Forest Service estimates that 90% of the Western white pines have been killed by the blister rust west of the ...
Monterey pine (Pinus radiata) Ponderosa pine (Pinus ponderosa) Red pine (North America) (Pinus resinosa) Scots pine, red pine (UK) (Pinus sylvestris) White pine. Eastern white pine (Pinus strobus) Western white pine (Pinus monticola) Sugar pine (Pinus lambertiana) Southern yellow pine. Loblolly pine (Pinus taeda) Longleaf pine (Pinus palustris ...
Pinus albicaulis is the only type of tree on the summit of Pywiack Dome in Yosemite National Park. Pinus albicaulis, known by the common names whitebark pine, white bark pine, white pine, pitch pine, scrub pine, and creeping pine, [4] is a conifer tree native to the mountains of the western United States and Canada, specifically subalpine areas of the Sierra Nevada, Cascade Range, Pacific ...
Pinus flexilis, the limber pine, is a species of pine tree in the family Pinaceae that occurs in the mountains of the Western United States, Mexico, and Canada. It is also called Rocky Mountain white pine. A limber pine in Eagle Cap Wilderness, Oregon, has been documented as over 2,000 years old, and another one was confirmed at 1,140 years old.
Pinus strobiformis, also known as Chihuahua white pine, is a medium-sized white pine tree endemic to western Mexico in the Sierra Madre Occidental mountain range. It is typically a high-elevation pine growing mixed with other conifers in montane forest .