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Definition of Bristlecone pine
1. 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.
Exact synonyms: Pinus Aristata, Rocky Mountain Bristlecone Pine
Generic synonyms: Pine, Pine Tree, True Pine
Generic synonyms: Pine, Pine Tree, True Pine
Definition of Bristlecone pine
1. Noun. Any of a small number of different small, slow-growing pine trees found in the western United States, some of which are over 4,000 years old. ¹
¹ Source: wiktionary.com