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Plants that cause illness or death after consuming them are referred to as poisonous plants. The toxins in poisonous plants affect herbivores , and deter them from consuming the plants. Plants cannot move to escape their predators, so they must have other means of protecting themselves from herbivorous animals.
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.
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.
The damage they do results both from the direct injury they cause to the plants and from the indirect consequences of the fungal, bacterial or viral infections they transmit. Plants have their own defences against these attacks but these may be overwhelmed, especially in habitats where the plants are already stressed, or where the pests have ...
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.
Invasive species adversely affect habitats and bioregions, causing ecological, environmental, and/or economic damage. The term can also be used for native species that become harmful to their native environment after human alterations to its food web. Since the 20th century, invasive species have become serious economic, social, and ...
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.