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Conium maculatum, known as hemlock (British English), [2] or poison hemlock (American English) [3] is a highly poisonous flowering plant in the carrot family Apiaceae, native to Europe and North Africa. It is herbaceous without woody parts and has a biennial lifecycle. A hardy plant capable of living in a variety of environments, hemlock is ...
Conium ( / koʊˈnaɪ.əm / or / ˈkoʊniəm /) is a genus of flowering plants in the family Apiaceae. [1] As of December 2020, Plants of the World Online accepts six species. [2] All species of the genus are poisonous to humans. C. maculatum, also known as hemlock, is infamous for being highly poisonous.
Coniine is a poisonous chemical compound, an alkaloid present in and isolable from poison hemlock ( Conium maculatum ), where its presence has been a source of significant economic, medical, and historico-cultural interest; coniine is also produced by the yellow pitcher plant ( Sarracenia flava ), and fool's parsley ( Aethusa cynapium ).
Several plants, including nightshade, become more toxic as they wilt and die, posing a danger to horses eating dried hay or plant matter blown into their pastures. The risk of animals becoming ill during the fall is increased, as many plants slow their growth in preparation for winter, and equines begin to browse on the remaining plants.
Central to these ancient accounts is the idea that quail became toxic to humans after consuming seeds from hellebore or henbane (Hyoscyamus niger). However Sextus Empiricus suggested that quail ate hemlock ( Conium maculatum ), an idea revived in the 20th century.
All parts of the plant are considered poisonous to animals, though — with the seeds being the most toxic. Sago palm contains cycasin, a toxic agent that can cause liver failure in dogs. Symptoms ...
The plant contains chemicals that are toxic to animals including humans, but it has also been used as a medicine. All parts of the plant contain protoanemonin, which can cause severe skin and gastrointestinal irritation, bitter taste and burning in the mouth and throat, mouth ulcers, nausea, vomiting, diarrhea, and hematemesis. [43] Anthurium spp.
Poison hemlock (Conium maculatum) is native to Europe and Africa. In Washington, the plant appears on a number of noxious weed lists. The Pierce County Noxious Weed Control Board places it in on ...