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All parts of these plants are toxic, due to the presence of alkaloids. Grazing animals, such as sheep and cattle, may be affected and human fatalities have occurred. [106] Delphinium spp. larkspur Ranunculaceae: Contains the alkaloid delsoline. Young plants and seeds are poisonous, causing nausea, muscle twitches, paralysis, and often death.
A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock. Most noxious weeds have been introduced into an ecosystem by ignorance, mismanagement, or ...
Laetiporus sulphureus is a species of bracket fungus (fungi that grow on trees) found in Europe and North America. Its common names are sulphur polypore, sulphur shelf, and chicken-of-the-woods. Its fruit bodies grow as striking golden-yellow shelf-like structures on tree trunks and branches. Old fruitbodies fade to pale beige or pale grey.
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 Australia.
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E. plantagineum contains pyrrolizidine alkaloids, so is poisonous to nonruminants. [10] [11] When eaten in large quantities, it causes reduced livestock weight, and death in severe cases, due to liver damage. [7] Paterson's curse can also kill horses, [12] and irritate the udders of dairy cows and the skin of humans.
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High doses cause acute respiratory syndrome , with death approximately 12 to 48 hours after consumption. [7] Caged birds seem to be more sensitive to the effects of persin, whereas, for example, turkeys and chickens seem more resistant. [7] Lactating rabbits and mice: non-infectious mastitis and agalactia after consumption of leaves or bark.