Poisonous plants include poison oak, daffodils, and giant hogweed. Touching some plant saps, stems, or leaves may cause a skin rash. Parts of many plants may lead to severe gastrointestinal upset if eaten. Ingesting some plants may result in heart problems or nervous system issues.
Perhaps the most famously lethal on our list is Atropa belladonna, the aptly named Deadly Nightshade. This toxic plant belongs to the same family as tomatoes, potatoes and aubergines, and can be found across Europe, including in Britain, as well as North Africa, Western Asia and some parts of the USA and Canada.
It has been estimated that more than 700 species of plants growing in North America have caused illness or death in humans and that more than three percent of all poisonings are plant-related.
Foxglove is notable for its tubular-shaped purple, pink, white, and yellow flowers. Depending on the species, the digitalis plant may contain several deadly toxins, leading to its other nickname, Witch's Glove.
Botulinum toxin, the nerve agent commonly called botox, is best known for its miraculous effect on wrinkles.
Known colloquially as the gympie gympie (from the Gubbi Gubbi/ Kabi Kabi name for the plant, gimpi gimpi), gympie stinger, and giant stinging tree (D. excelsa), this plant has the dubious honour of being arguably the most painful plant in the world.
Are Roses Poisonous? All parts of the rose, from the blossom to the leaves are non toxic to humans and safe to consume. Careful of the thorns on rose shrubs as they can easily scratch or poke you, causing minor skin irritations.
Dendrocnide moroides, commonly known in Australia as the stinging tree, stinging bush, Queensland Stinger or gympie-gympie, is a plant in the nettle family Urticaceae found in rainforest areas of Malaysia and Australia.
Deadly Nightshade (Atropa belladonna)
Nightshade contains atropine and scopolamine in its stems, leaves, berries, and roots, and causes paralysis in the involuntary muscles of the body, including the heart. Even physical contact with the leaves may cause skin irritation.
Blue death is extremely poisonous and can be fatal to humans.
In most cases, the answer is no. The fungi, bacteria, viruses, and nematodes that cause disease in plants are very different from those that cause disease in humans and other animals.
The plants most commonly associated with cyanide poisoning are sudangrass, Johnsongrass, sorghums and sorghum-sudangrass hybrids. Grain sorghums are potentially more toxic than forage sorghums or sudangrass. Indiangrass and chokecherry also can cause cyanide poisoning.
sensitive plant, (Mimosa pudica), also called humble plant, plant in the pea family (Fabaceae) that responds to touch and other stimulation by rapidly closing its leaves and drooping.
Known as Gympie-gympie in Australia and salat in Papua New Guinea, contact with this leaf can result in human death, more often extreme pain that can last for months. Stinging hairs deliver a potent neurotoxin when touched. Leaf has medicinal purposes in some PNG tribes. Scientific name is Dendrocnide moroides.
Just like with people, a plant might react differently to being touched. You can determine which plant won't mind a bit of cuddling based on their nature and where they typically grow. Indoor plants with broad leaves, such as Monsteras, Alocasias, and Pothos, enjoy occasional wiping.
It is called the “silent killer” because it is colorless, odorless, tasteless and non- irritating. If the early signs of CO poisoning are ignored, a person may lose consciousness and be unable to escape the danger. More people die from carbon monoxide exposure than any other kind of poisoning.
The acute toxicity of arsenic has been recognized since antiquity. Known as both the “king of poisons” and the “poison of kings,” the element's infamy grew during the Middle Ages as an almost untraceable means of murder.
Tetrodotoxin interferes with the transmission of signals from nerves to muscles and causes an increasing paralysis of the muscles of the body. Tetrodotoxin poisoning can be fatal.
Aconitum, part of the buttercup family, goes by various nicknames depending on the exact species - Monkshood, Wolfsbane, the Queen of Poisons, or Devil's Helmet.
Belladonna. Its name might mean “beautiful woman” in Italian, but this decorative shrub—also known as deadly nightshade—is quite the femme fatale. Ingesting any part of it can cause hallucinations and convulsions, and one leaf of the herbaceous plant—one of the deadliest on Earth—can readily slay an adult.
Yellow oleander (Thevetia peruviana)
These plants are mainly found in warm climates or in coastal gardens. Yellow oleander is different to pink oleander (Nerium oleander) which is commonly found in Sydney, Australia. Pink oleander is also considered poisonous.