Pinus lambertiana (commonly known as the sugar pine) is the tallest and most massive pine tree and has among the longest cones of any conifer. It is native to coastal and inland mountain areas along the Pacific coast of North America, as far north as Oregon and as far south as Baja California in Mexico.
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👉 Pinus lambertiana in the context of Pinus classification
Pinus, the pines, is a genus of approximately 110–120 extant tree and shrub species. The genus is currently split into two subgenera, subgenus Pinus (hard pines), and subgenus Strobus (soft pines). Each of the subgenera have been further divided into sections and subsections based in the past on morphology, ecology and biogeography, and more recently increasingly from chloroplast DNA sequencing and whole plastid genomic analysis. While the genetic analysis has given robust results at the higher levels, they often give conflicting results lower in the phylogenetic trees, with species allocated to different subsections (and sometimes different sections) by different studies or even within a study. Within subsections, the genetic relationships between species can be even more complex and conflicting; in one study, three samples of the very distinctive and morphologically constant Pinus lambertiana were placed in three different clades of the subsection Strobus, and similar problems with many other species with widespread nonmonophyly.
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 (two in Pinus, one in Strobus), the position of the resin ducts in the needles (internal or external), the presence or shape of the seed wings (rudimentary or effective, articulate or adnate), and the position of the umbo (dorsal or terminal) and presence of a prickle on the scales of the seed cones.
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Pinus lambertiana in the context of Tree felling
Felling is the process of cutting down trees, an element of the task of logging. The person cutting the trees is a lumberjack. A feller buncher is a machine capable of felling a single large tree or grouping and felling several small ones simultaneously.
Pinus lambertiana in the context of Sequoia grove
This is a list of giant sequoia groves. All naturally occurring giant sequoia groves are located in the moist, unglaciated ridges and valleys of the western slope of the Sierra Nevada range in California, United States. They can be found at elevations between 1,400 and 2,400 m (4,593 and 7,874 ft).
While many groves are within national park boundaries, such as Sequoia National Park and Yosemite National Park, most of the giant sequoia groves are under the care of the United States Forest Service, placing them outside the legislative mandate that excludes commercial timber harvest. Logging of non-sequoia timber continued as recently as the 1980, especially old-growth ponderosa and sugar pine, which have been logged almost to extinction amongst the groves.