marsh elder(redirected from Iva annua)
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Related to Iva annua: marsh elder
Any of several North American herbs or shrubs of the genus Iva of the composite family, often growing in salt marshes and having nodding, greenish flower heads.
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) any of several North American shrubs of the genus Iva, growing in salt marshes: family Asteraceae (composites). Compare elder2
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
any of various composite plants of the genus Iva that grow in salt marshes.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||marsh elder - any of various coarse shrubby plants of the genus Iva with small greenish flowers; common in moist areas (as coastal salt marshes) of eastern and central North America|
genus Iva - small genus of American herbs or shrubs; in some classifications placed in a separate family Ambrosiaceae
burweed marsh elder, false ragweed, Iva xanthifolia - tall annual marsh elder common in moist rich soil in central North America that can cause contact dermatitis; produces much pollen that is a major cause of hay fever
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