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A rhizomatous perennial plant (Filipendula rubra) in the rose family, native to eastern and central North America, having aromatic, pinnately compound leaves and showy panicles of small pink flowers.
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.