Pinus longaeva The bristlecone pines are three species of pine trees (family Pinaceae, genus Pinus, subsection Balfourianae). Some bristlecone pine individuals are more than 5,000 years old and are the oldest known individuals of any species. Bristlecone pine grow in scattered subalpine groves at high altitude in arid regions of the Western United... Found on http://en.wikipedia.org/wiki/Bristlecone_pine
(species Pinus aristata), a small pine tree ranging from 5 to 13 m (15 to 40 feet) in height and belonging to the family Pinaceae. It is native to ... [5 related articles] Found on http://www.britannica.com/eb/a-z/b/113
Rocky Mountain bristlecone pinenoun small slow-growing upland pine of western United States (Rocky Mountains) having dense branches with fissured rust-brown bark and short needles in bunches of 5 and thorn-tipped cone scales; amo... Found on https://www.encyclo.co.uk/local/20974
a pine, Pinus aristata, of the southwestern U.S., bearing short needles crowded into long, thick bundles and cones having scales tipped with a slender, curved spine. Also called Found on https://www.infoplease.com/dictionary/bristlecone-pine