单词	bristlecone pine
释义	bristlecone pine /ˌbrɪs(ə)lkəʊn ˈpʌɪn / noun A very long-lived shrubby pine of western North America. It has been used in dendrochronology to check radiocarbon dating. Pinus longaeva, family Pinaceae. I know I have been unable to get a bristlecone pine to grow in Blacksburg, Virginia!... The shape of the roof and overhangs mirrors the shape of the bristlecone pine trees in the area. Some bristlecone pine trees on Pikes Peak could be more than 2,000 years old.
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