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A coniferous evergreen tree (Araucaria araucana) native to Chile and Argentina, having whorled branches covered with scalelike, overlapping, sharp-pointed leaves.
[Perhaps from the obstacle its intertwined branches would pose.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.