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Locoweed (also crazyweed and loco) is a common name in North America for any plant that produces swainsonine, an alkaloid 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 , [ 1 ] and Swainsona in ...
Oxytropis sericea is a species of flowering plant in the legume family known by the common names white locoweed, white point-vetch, whitepoint crazyweed, and silky crazyweed. It is native to western North America from Yukon and British Columbia south through the Pacific Northwest , the Rocky Mountains , and the Great Plains .
Oxytropis splendens, commonly known as showy locoweed, is a flowering perennial in the legume family endemic to the east slope of the Rocky Mountains. [3] Growing in Canada, Alaska, several Great Plains states, and parts of the Mountain West, O. splendens grows well in harsh alpine ecosystems, allowing it to quickly colonize gravel and coal spoils.
Oxytropis campestris, the field locoweed, [3] is a plant native to Northern Europe, the mountains of Central & Southern Europe, the Northwestern United States and all of Canada, sometimes grown as an ornamental plant. It is found in prairies, woods, and meadows, and prefers gravelly and rocky slopes, where it grows most abundantly.
Suspected mushroom poisoning in Australia has made headlines around the world
The Oxytropis lambertii plant is one of the locoweeds most frequently implicated in livestock poisoning. [8] The toxin is called swainsonine.Research suggests that the plant itself may not be toxic, but becomes toxic when inhabited by endophytic fungi of the genus Embellisia, which produce swainsonine.
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Common symptoms are often flulike and include headache, dizziness, upset stomach, chest pain or confusion, but highly concentrated levels of CO can cause a person to pass out without feeling symptoms.