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The Sugar Pine (Pinus lambertiana; family Pinaceae) is a species of pine that occurs in the mountains of Oregon and California in the western United States, and Baja California Norte in northwestern Mexico; specifically the Sierra NevadaThe Sierra Nevada is a mountain range that is mostly in eastern California. The range is also known as The Sierra . Geography The Sierra Nevada stretches 400 miles (650km), from Fredonyer Pass in the North to Tehachapi Pass in the South. The Sierra Nevada, the Cascade RangeMount Adams in Washington state The Cascade Range is a mountainous region famous for its chain of tall volcanos called the High Cascades that run north-south along the west coast of North America from British Columbia to the Shasta Cascade area of norther, the Coast Ranges, and the Sierra San Pedro Martir.

This treeThis article is about the biological organisms known as trees. For other meanings of the word see tree (disambiguation). oak tree in Denmark A tree can be defined as a large perennial woody plant. Though there is no set definition of size, it is generally is the largest species of pine, commonly growing to 40-60 m tall, exceptionally up to 81 m tall, and with a trunk diameter of 1.5-2.5 m, exceptionally 3.5 m.

It is a member of the white pine group, Pinus subgenus Strobus, and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, with a deciduous sheath. They are 6-11 cm long. Sugar Pine is notable for having the longest cones of any conifer, mostly 25-50 cm long, exceptionally up to 66 cmTo help compare different orders of magnitude this page lists lengths between one metre and ten metres. One metre is equivalent to 39 inches, 3. 28 feet, 100 centimetres, or 1000 millimetres. Distances shorter than 1 m 1 metre is: side of square with area long.

The Sugar Pine has been severely affected by the White Pine Blister Rust (Cronartium ribicola), a fungus that was accidentally introduced from Europe in 1909. A high proportion of the Sugar Pine has been killed by the blister rust, particularly in the northern part of the species' range (further south in central and southern California, the summers are too dry for the disease to spread easily). The rust has also destroyed much of the Western White Pine and Whitebark Pine outside of California. The US Forest Service has a program (see link below) for developing rust-resistant Sugar Pine and Western White Pine. Seedlings of these trees have been introduced into the wild.