milfoil

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mil·foil

 (mĭl′foil′)
n.
1. See yarrow.

[Middle English, from Old French, from Latin mīlifolium : mīlle, thousand; see gheslo- in Indo-European roots + folium, leaf; see bhel- in Indo-European roots.]
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.

milfoil

(ˈmɪlˌfɔɪl)
n
1. (Plants) another name for yarrow
2. (Plants) See water milfoil
[C13: from Old French, from Latin milifolium, from mille thousand + folium leaf]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

yar•row

(ˈyær oʊ)

n.
any composite plant of the genus Achillea, esp. A. millefolium, having fernlike leaves and flat-topped clusters of white-to-yellow flowers.
[before 900; Middle English yar(o)we, Old English gearwe]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.milfoil - ubiquitous strong-scented mat-forming Eurasian herb of wasteland, hedgerow or pasture having narrow serrate leaves and small usually white floretsmilfoil - ubiquitous strong-scented mat-forming Eurasian herb of wasteland, hedgerow or pasture having narrow serrate leaves and small usually white florets; widely naturalized in North America
achillea - any of several plants of the genus Achillea native to Europe and having small white flowers in flat-topped flower heads
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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References in periodicals archive ?
Monopoly Marsh has clear water (i.e., secchi disc transparency [greater than or equal to] 35 cm) and is dominated by American Lotus (Nelumbo lutea), watershield (Brasenia schreberi), coontail (Ceratophyllum demersum), bald cypress (Taxodium distichum), yellow and white lily (Nymphea spp.), spatterdock (Nuphar spp.), and milfoils (Myriophyllum spp.) and has a mean depth of 1.5 m with a 2.5 m maximum depth at full pool.
Anderson and co-researchers are also conducting sophisticated laboratory analyses of the two milfoils to precisely identify differences in the genetic makeup of these weeds from different sites.
By releasing into the ecosystem thousands of milfoil weevils, a native aquatic beetle that feasts on the offending plant, EnviroScience has found a natural way to combat the spread of the plant, which is typically spread when boat owners don't clean their boats before transferring their vessel between water bodies.