Pinus longaeva (commonly referred to as the Great Basin bristlecone pine, intermountain bristlecone pine, or western bristlecone pine) is a long-living species of bristlecone pine tree found in the higher mountains of California, Nevada, and Utah. One member of this species, at 5,067 years old, is the oldest known living non-clonal organism on Earth. In 1987, the bristlecone pine was designated one of Nevada's state trees.