sweet flag(redirected from Calamus-root)
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1. A perennial herb (Acorus calamus) native to Eurasia and naturalized in North America, growing in marshy places and having grasslike leaves, minute greenish flowers borne on a thick spadix, and aromatic rhizomes used in medicine and perfumery. Also called calamus.
2. A similar plant (Acorus americanus) native to North America.
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.
(Plants) an aroid marsh plant, Acorus calamus, having swordlike leaves, small greenish flowers, and aromatic roots. Also called: calamus
[C18: see flag2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||sweet flag - perennial marsh plant having swordlike leaves and aromatic roots|
calamus - the aromatic root of the sweet flag used medicinally
calamus oil - carcinogenic oil from calamus root used as a perfume
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