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Pinus balfouriana : ウィキペディア英語版 | Pinus balfouriana
''Pinus balfouriana'' (foxtail pine) is a rare pine that is endemic to California, United States. The two disjunct populations are found in the Klamath Mountains (subspecies ''balfouriana'') and the southern Sierra Nevada (subspecies ''austrina''). A small outlying population was reported in southern Oregon, but was proven to have been misidentified.〔Kauffmann, Michael E. (2012). Conifer Country. Kneeland, CA: Backcountry Press. ISBN 9780578094168.OCLC 798852130.〕 ==Description== ''P. balfouriana'' is a tree to tall, exceptionally , and up to in trunk diameter. Its leaves are needle-like, in bundles of five (or sometimes four, in the southern Sierra) with a semi-persistent basal sheath, and long, deep glossy green on the outer face, and white on the inner faces; they persist for 10–15 years. The cones are 6–11 cm (2 - 4 in) long, dark purple ripening red-brown, with soft, flexible scales each with a one millimetre central prickle.
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