pinus aristata

Noun

• 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

Related words

• Synonyms: 
  bristlecone pine , Rocky Mountain bristlecone pine , Pinus aristata