Rocky Mountain bristlecone pine
Also found in: Thesaurus, Wikipedia.
Related to Rocky Mountain bristlecone pine: whitebark pine, Pinus aristata, Great Basin Bristlecone Pine
Switch to new thesaurus
|Noun||1.||Rocky Mountain bristlecone pine - 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; among the oldest living things some over 4500 years old|