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  1. any of several composite plants of the genus Boltonia, of the U.S., having blue, purple, or white asterlike flower heads.

Origin of boltonia

< New Latin (1788); after James Bolton, 18th-century English botanist; see -ia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for boltonia


  1. any North American plant of the genus Boltonia, having daisy-like flowers with white, violet, or pinkish rays: family Compositae (composites)

Word Origin

C18: New Latin, named after James Bolton, C18 English botanist
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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