According to the Guinness Book of World Records, based on the amount of poison it takes to kill a human, the most poisonous common plant in the world is the castor bean (Ricinus communis).
Deadly Nightshade
The flowers of this plant are small, reddish purple and tubular shaped, but it is the berries that are the most deadly part of the plant. The atropine found in belladonna disrupts the nervous system and can destroy the body's ability to regulate breathing and heart rate, leading to death.
One of the world's most venomous plants, the Gympie-Gympie stinging tree can cause months of excruciating pain for unsuspecting humans.
The deadliest flower in the insect world is a lifeline to farmers—and the planet. The yellow center of the 'killer chrysanthemum' contains a natural toxin that is a powerful insecticide.
Costus longibracteatus 'Kiss of Death'
The death tree or Manchineel tree is so poisonous, that even Guinness Book of World Records has recorded it to be the most dangerous tree in the world. The poisonous sap oozes out of everything, the bark, leaves and even the fruit.
Australian Box Jellyfish
The box jellyfish is the world's most venomous animal with four species — Chironex fleckeri, Carukia barnesi, Malo kingi, and Chironex yamaguchii — considered highly venomous. The Chironex fleckeri, also known as the Australian box jellyfish is considered the most venomous animal in the world.
Gympie gympie
The stinging leaves trigger an intense allergic reaction in its victims, sometimes even causing anaphylactic shock. The sting can cause excruciating, debilitating pain for months; people have variously described it as feeling like they are being burned by acid, electrocuted, or squashed by giant hands.
Its inland taipan snakes, box jellyfish, Sydney funnel-web spiders, and stonefish all rank among the most venomous of their kind. The best illustration of Australia's deadly-animal problem may be the Elapidae snake family: a venomous group characterized by its short fangs and agile nature.
Poison hemlock looks pretty—but touching it could kill you.
Part of the Apiaceae family of plants (carrots are a cousin) and with the scientific name Conium maculatum, poison hemlock is one of the most dangerous plants on the planet.
Gelsemium comes in three flowering varieties – two native to North America and one to China. All three can be deadly. The most toxic variety of gelsemium, Gelsemium elegans, only grows in Asia, and is also known as “heartbreak grass”.
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.
Although the berries might be the most tempting part of Deadly nightshade, all parts of this plant are poisonous if ingested. It causes a range of symptoms including blurred vision, a rash, headaches, slurred speech, hallucinations, convulsions and eventually death.
Like the Angel's trumpets, deadly nightshades are common garden plants not native to Australia.
Some consider that the antidote for the poisoning by Gympie could be the plant Cunjevoi (lat. Alocasia brisbanensis), but there is no strong evidence to confirm this. In most cases the poisoned surface is treated by a 10% solution of hydrochloric acid. This achieves neutralization of the peptide layer of the hair.
Given that plants do not have pain receptors, nerves, or a brain, they do not feel pain as we members of the animal kingdom understand it. Uprooting a carrot or trimming a hedge is not a form of botanical torture, and you can bite into that apple without worry.
These include the nocturnal leaf-eating chrysomelid beetle and even a small marsupial known as the red-legged pademelon. Humans can eat the juicy fruit of the gympie-gympie, but only if they have taken the time to properly and painstakingly remove every one of its hairs.
Key statistics
The mortality rate remained low in 2021 (507.2 per 100,000 people). Ischaemic heart disease was the leading cause of death.
Australia and Antarctica finally broke apart around 100 million years ago. Today, venomous snakes are found in all of these places – apart from Antarctica, where it is too cold for them to live. On the original combined land mass, it is thought that there was a population of ancestral snakes that was venomous.
Answer. The cassowary is usually considered to be the world's most dangerous bird, at least where humans are concerned, although ostriches and emus can also be dangerous. Cassowary (Queensland, Australia).
The Jesus Tree. Jesus said that God's heavenly presence was arriving on Earth through him and his mission. And he often likened this to a huge tree, growing and spreading in surprising ways (Matthew 13:31-32). Jesus even claimed to be a tree of life, a vine that offers God's life to the world (John 15).
Tree-of-heaven usually has low palatability for grazers; however, livestock (cattle, sheep, and goats) and deer will consume it during certain times of the year under specific circumstances. Goats will eat leaves and bark. Deer will browse leaves during the summer—especially in shady, forested areas.
The uses of the Moringa tree seem to be endless. Moringa Oleifera trees may survive despite high altitudes (up to 1500 meters) or very dry and arid deserts with less than 400 mm annual rainfall.