: any of several leguminous plants (genera Astragalus and Oxytropis) of western North America that contain a toxin that causes locoism especially in livestock when ingested in large quantities
Locoweed has been reported to be the most widespread poisonous plant problem in the western United States. … Horses appear to be more susceptible to the neurotoxic effects of locoweed, and they typically display more distinctive signs than cattle or sheep.—Jason L. Turner and Kert Young
Examples of locoweed in a Sentence
Recent Examples on the WebThe unincorporated community got its name after the locoweed, a common North American poisonous plant synonymous for causing livestock to grow weak and lose muscular control.—Timothy Fanning, San Antonio Express-News, 28 Jan. 2022 The drug is usually produced from wild hemp or locoweed which can be found on vacant lots and along railroad tracks in every state.—Eric Limer, Popular Mechanics, 20 Apr. 2018
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'locoweed.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
: any of several leguminous plants (genera Astragalus and Oxytropis) of western North America that contain a toxin that causes locoism in livestock when ingested in large quantities
Animals may recover from locoweed intoxication; however, recovery is highly dependent on the severity of the poisoning. Most damage to cellular and bodily systems is reversible with time; however, brain damage may be permanent. This is evidenced by the observation that behavioral abnormalities often persist in animals even after animals have been removed from locoweed and apparent cellular damage has subsided.—Daniel Cook et al., Rangelands (Society for Range Management)