| 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
 • Syn:
 bristlecone pine, Rocky Mountain bristlecone pine
 • Hypernyms:
 pine, pine tree, true pine
 
 
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