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Any of several leguminous plants of the genera Oxytropis and Astragalus of western North America that are poisonous to livestock. Also called crazyweed, loco1.
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.


(ˈləʊkəʊˌwiːd) or


(Plants) any of several perennial leguminous plants of the genera Oxytropis and Astragalus, found in western parts of North America, containing neurotoxins which cause loco disease in horses, cattle, and sheep
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.locoweed - any of several leguminous plants of western North America causing locoism in livestocklocoweed - 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
2.locoweed - street names for marijuanalocoweed - street names for marijuana    
cannabis, ganja, marihuana, marijuana - the most commonly used illicit drug; considered a soft drug, it consists of the dried leaves of the hemp plant; smoked or chewed for euphoric effect
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Today it has many additional names including stink weed, angel's trumpet, loco weed, devil's trumpet, and thorn apple (Figure 1 and 2).
stramonium plant is known as jimson weed, loco weed, angel's trumpet, devil's trumpet, witch's thimble, devil 's apple, thorn apple, stinkweed, mad apple, devil 's weed, malpitte and green dragon (Beno, Osterhoudt & Meaney 2004; Shervette et al.
The cowboy that saved this calf called him a "crack baby," since the mother cow got hooked on loco weed. The calf has a deformed fetlock from the loco weed, but is doing well on goat milk.