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  2. List of poisonous plants - Wikipedia

    en.wikipedia.org/wiki/List_of_poisonous_plants

    Also present are ricinine, an alkaloid, and an irritant oil. According to the 2007 edition of the Guinness Book of World Records, the castor oil plant is the most poisonous in the world, though its cousin abrin, found in the seeds of the jequirity plant, is arguably more lethal. Castor oil, long used as a laxative, muscle rub, and in cosmetics ...

  3. Rafflesia - Wikipedia

    en.wikipedia.org/wiki/Rafflesia

    Rafflesia (/ r ə ˈ f l iː z (i) ə,-ˈ f l iː ʒ (i) ə, r æ-/), [2] or stinking corpse lily, [3] is a genus of parasitic flowering plants in the family Rafflesiaceae. [4] The species have enormous flowers, the buds rising from the ground or directly from the lower stems of their host plants; one species has the largest flower in the world.

  4. Rafflesia arnoldii - Wikipedia

    en.wikipedia.org/wiki/Rafflesia_arnoldii

    The flower of Rafflesia arnoldii grows to a diameter of around one meter (3.3 feet), [2] weighing up to 11 kilograms (24 lb). [18] These flowers emerge from very large, cabbage-like, maroon or dark brown buds typically about 30 cm (12 in) wide, but the largest (and the largest flower bud ever recorded) found at Mount Sago , Sumatra in May 1956 ...

  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. Atropa belladonna - Wikipedia

    en.wikipedia.org/wiki/Atropa_belladonna

    Atropa bella-donna flower. Atropa bella-donna is a branching herbaceous perennial rhizomatous hemicryptophyte, often growing as a subshrub from a fleshy rootstock. Plants can reach a height of 2 m (7 ft) (more commonly 1.5 m (5 ft)), and have ovate leaves up to 18 cm (7 in) long.

  7. Toxopneustes pileolus - Wikipedia

    en.wikipedia.org/wiki/Toxopneustes_pileolus

    Toxopneustes pileolus, commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific.It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched.

  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.

  9. Toxicoscordion venenosum - Wikipedia

    en.wikipedia.org/wiki/Toxicoscordion_venenosum

    Each flower has six stamens each as long or slightly longer than the tepals. [7] The bracts on the back of the flowers may be green or white and are 5–25 millimeters long. [5] Flowering may comence in April, May, June, or as late as July in its native habitat. [11] [12] The fruit is a capsule 8–20 millimeters long and 4–7 millimeters wide ...