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[From its toxic effect on some animals.]
(Plants) a US dialect name for locoweed
any of various leguminous plants of the genera Astragalus and Oxytropis, of the southwestern U.S. and Mexico, causing locoism in sheep, horses, etc.
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|Noun||1.||crazyweed - any of several leguminous plants of western North America causing locoism in livestock|
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