rocky mountain bristlecone pine

Noun rocky mountain bristlecone pine has 1 sense

• rocky mountain bristlecone pine(n = noun.plant) bristlecone pine, pinus aristata - 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;
is a kind of pine, pine tree, true pine