A few things on this planet are old enough to make history books look recent, and that includes some living trees that have ...

2021: The Rocky Mountain bristlecone pine’s roots have held it steady on the mountainside for over 2000 years. Civilizations have risen and fallen, ice ages have passed, its bark has grown gnarled and ...

Rocky Mountain Bristlecone Pine (Pinus aristata) Where: Living at high altitude on arid, windswept mountain slopes of Colorado, New Mexico and Arizona, as many as a dozen of these trees have been ...

The Rocky Mountain bristlecone pine is found only in Colorado, New Mexico and Arizona, so their ranges do not overlap at all. The Great Basin bristlecone pine is longer living and claims the title of ...

Rocky Mountain bristlecone pine is a native conifer found in Colorado, New Mexico and Arizona from 7,000 feet to tree line in montane and subalpine life zones.

The Rocky Mountain bristlecone pine is famous for its longevity. The oldest known living specimen, near Pikes Peak, is 2500 years old. Native to Colorado, Bristlecone pines grow in some of the ...

Bristlecone pines have distinctive clusters of needles and prickly cones Credit: Terri Cook. To increase their chances of survival, Rocky Mountain bristlecone pines grow slowly, often adding only ...

An exotic fungus spreading southward through Rocky Mountain forests is threatening Colorado’s oldest trees — the gnarled limber and bristlecone pines that can live longer than 2,000 years.

Also called Rocky Mountain bristlecone pine and hickory pine, these evergreens are native to the high mountain regions of the West, which are pretty inhospitable locations. That means these guys ...

“There were other trees that were hosting the mountain pine beetle and a few of the bristlecone pines have been sufficiently cross infected and succumbed.” Around this time in 2017, he ...

Rocky Mountain bristlecone pine and limber pine are both five-needled trees that are adapted to growing in rocky and windy environments. At a distance, they look like cartoon Christmas trees, ...