locoweedˈloʊ koʊˌwid
locoweed
English Definitions:
locoweed, crazyweed, crazy weed (noun)
any of several leguminous plants of western North America causing locoism in livestock
pot, grass, green goddess, dope, weed, gage, sess, sens, smoke, skunk, locoweed, Mary Jane (noun)
street names for marijuana
locoweed (Noun)
Any of several plants indigenous to the western United States, of genus Oxytropis or Astragalus, are toxic to cattle and the symptoms of poisoning include nervous problems.
Locoweed
Locoweed is a common name in North America for any plant that produces swainsonine, a phytotoxin harmful to livestock. Worldwide, swainsonine is produced by a small number of species, most in three genera of the flowering plant family Fabaceae: Oxytropis and Astragalus in North America, and Swainsona in Australia. The term locoweed usually refers only to the North American species of Oxytropis and Astragalus, but this article includes the other species as well. Some references may list Datura stramonium as loco weed. Locoweed is relatively palatable to livestock, and some individual animals will seek it out. Livestock poisoned by chronic ingestion of large amounts of swainsonine develop a medical condition known as locoism and pea struck. Locoism is reported most often in cattle, sheep, and horses, but has been reported also in elk and deer. It is the most widespread poisonous plant problem in the western United States. Agricultural Research Service and New Mexico State University scientists have been collaborating since 1990 to help solve the problem that locoweed presents to livestock farmers. The research involved identifying the fungal species that produces the locoweed toxins, pinpointing levels of toxicity in animals once they have ingested locoweed, observing the effects of locoweed toxins on livestock’s reproduction and grazing preferences, etc. Together, the scientists assembled a grazing management scheme to help farmers avoid the poisonous locoweed.
Locoweed
Locoweed (also crazyweed and loco) is a common name in North America for any plant that produces swainsonine, a phytotoxin harmful to livestock. Worldwide, swainsonine is produced by a small number of species, most of them in three genera of the flowering plant family Fabaceae: Oxytropis and Astragalus in North America, and Swainsona in Australia. The term locoweed usually refers only to the North American species of Oxytropis and Astragalus, but this article includes the other species as well. Some references may list Datura stramonium as locoweed.Locoweed is relatively palatable to livestock, and some individual animals will seek it out. Livestock poisoned by chronic ingestion of large amounts of swainsonine develop a medical condition known as locoism (swainsonine disease, swainsonine toxicosis in North America) and pea struck in Australia. Locoism is reported most often in cattle, sheep, and horses, but has also been reported in elk and deer. It is the most widespread poisonous plant problem in the western United States.Most of the 2,000 species of Astragalus, including many that are commonly known as locoweeds, do not produce swainsonine. Some species, including a few that produce swainsonine, accumulate selenium. This has led to confusion between swainsonine poisoning and selenium poisoning due to this genus.
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"locoweed." Kamus.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.kamus.net/english/locoweed>.
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