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[From its toxic effect on some animals.]
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) a US dialect name for locoweed
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈloʊ koʊˌwid)

any of various leguminous plants of the genera Astragalus and Oxytropis, of the southwestern U.S. and Mexico, causing locoism in sheep, horses, etc.
[1875–80, Amer.]
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.crazyweed - any of several leguminous plants of western North America causing locoism in livestockcrazyweed - any of several leguminous plants of western North America causing locoism in livestock
legume, leguminous plant - an erect or climbing bean or pea plant of the family Leguminosae
genus Oxytropis, Oxytropis - large widely-distributed genus of evergreen shrubs or subshrubs having odd-pinnate leaves and racemose or spicate flowers each having a pea-like corolla with a clawed petal
Oxytropis lambertii, purple loco, purple locoweed - tufted locoweed of southwestern United States having purple or pink to white flowers
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Monkeys will pay to look at images of other sexually attractive primates, elephants have more than 30 different ways to talk to each other, while cows get high on a drug called crazyweed, dracula ants suck the blood of their young, and seagulls affected by pollution regularly fall over.
The smallest difference (about 34-34.7[degrees]F [1-1.5[degrees]C]) is found in plants with a white corolla, such as draba (Draba), Arctic heather (Cassiope tetragona); the largest difference (39.6[degrees]F [4.2[degrees]C]) is found in crazyweed (Oxytropis nigrescens, Leguminosae), whose flowers have an attractive violet-colored standard.
I might have recognized Indian paintbrush, but crazyweed, pussytoe, squawbush, Rocky Mountain juniper, and limber pine were strangers.