What is the longest living tree species?

The longest living tree species is the bristlecone pine (Pinus longaeva), which can live for over 5,000 years. Found in the White Mountains of California, USA, these trees grow in harsh, high-altitude environments. Bristlecone pines are able to survive extreme conditions due to their slow growth, dense wood, and the ability to resist disease and pests. The oldest known living tree, named Methuselah, is a bristlecone pine and is estimated to be around 4,800 years old.