Rocky Mountain bristlecone pine
Quick Summary
The Rocky Mountain bristlecone pine, scientifically known as Pinus aristata, is a species of small pine tree native to the Rocky Mountains and other ranges in the southwestern United States. These trees are renowned for their remarkable longevity, with some individuals estimated to be over 2,480 years old. They typically grow at elevations above 1,700 meters (5,500 feet) in arid climates and high elevations.1
Bristlecone pines are characterized by their small to medium size, usually ranging from 5 to 16 meters (15 to 50 feet) in height. They have short needles grouped in fascicles of five and cones that are ovoid and deep purple when young. Despite their hardiness, these ancient trees are vulnerable to environmental changes, including drought and bark beetle infestations, which have led to die-offs in some populations.1
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
