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  2. List of poisonous plants - Wikipedia

    en.wikipedia.org/wiki/List_of_poisonous_plants

    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.

  3. Noxious weed - Wikipedia

    en.wikipedia.org/wiki/Noxious_weed

    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 ...

  4. Datura stramonium - Wikipedia

    en.wikipedia.org/wiki/Datura_stramonium

    Datura stramonium, known by the common names thornapple, jimsonweed (jimson weed), or devil's trumpet, [2] is a poisonous flowering plant in the Daturae tribe of the nightshade family Solanaceae. [3] Its likely origin was in Central America , [ 2 ] [ 4 ] and it has been introduced in many world regions.

  5. Datura - Wikipedia

    en.wikipedia.org/wiki/Datura

    Datura is a genus of nine species of highly poisonous, vespertine-flowering plants belonging to the nightshade family (). [1] They are commonly known as thornapples or jimsonweeds, but are also known as devil's trumpets or mad apple [2] (not to be confused with angel's trumpets, which are placed in the closely related genus Brugmansia).

  6. Locoweed - Wikipedia

    en.wikipedia.org/wiki/Locoweed

    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.

  7. Lolium temulentum - Wikipedia

    en.wikipedia.org/wiki/Lolium_temulentum

    Lolium temulentum, typically known as darnel, poison darnel, darnel ryegrass or cockle, is an annual plant of the genus Lolium within the family Poaceae. The plant stem can grow up to one meter tall, with inflorescence in the ears and purple grain.

  8. Conium maculatum - Wikipedia

    en.wikipedia.org/wiki/Conium_maculatum

    Conium maculatum, known as hemlock (British English) or poison hemlock (American English), 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 widely ...

  9. Datura wrightii - Wikipedia

    en.wikipedia.org/wiki/Datura_wrightii

    All parts of Datura plants contain dangerous levels of anticholinergic tropane alkaloids and may be fatal if ingested by humans, livestock, or pets. In some places, it is prohibited to buy, sell or cultivate Datura plants. [8] Unlike other types of datura, the roots are considered the most potent and alkaloid-rich part of this species.