Buzz
Our planet is home to an overwhelming number of plants that we coexist with. Earlier lists have examined some of the most toxic species, but this one delves into the deadly plants with a level of danger like no other. It's not only plucking petals or nibbling on berries that can be fatal—sometimes, merely getting too close is enough to seal your fate. This chilling exploration will cover the vision-destroying effects of Giant Hogweed, the strange neurotoxic plant that can make you turn on your own home, and the truth behind the ancient Biblical tales of waters tainted with blood.
This compilation is thoroughly sourced to expose the hidden dangers that lie within the foliage . . . and even along the coastlines.
10. Skunk Cabbage
Skunk Cabbage is a massive, foul-smelling North American plant that belongs to the Aurum family. Found in swampy areas, the plant’s stench is often confused with that of an angry skunk until its large golden or purplish flowers start to appear from the leaves. Its appearance is otherworldly, resembling an alien artifact. While Native Americans discovered that certain parts of the Skunk Cabbage were edible, consuming the wrong parts in large amounts can lead to death from severe calcium oxalate poisoning. This toxin, highly corrosive, can burn the flesh and potentially shut down organ systems. The author once misinterpreted a gardening guide and tried a flowerhead. The result was excruciating mouth and throat burns, a serious illness for hours, and two days of difficulty swallowing.
9. Buttercup
The Buttercup is by far the most deceptively harmless plant on this list. It's also one of the most common and one of the deadliest in gardens. Growing frequently in areas with poor drainage, Buttercups are often found by children who use them in games that involve touching the plant to their skin. The aim is to create a temporary red mark, as the plant’s bright yellow flowers release a toxin that causes a short-lived rash. However, Buttercup is far more lethal. It can poison grazing animals, leading to severe gastrointestinal issues. If consumed by humans, it can cause a painful death due to poisoning of the organs and nervous system. Beauty is truly in the eye of the beholder, but certainly not in the hands of those who handle this deadly flower.
8. Giant Hogweed
Giant Hogweed is truly a nightmare-inducing plant. While many plants are toxic when ingested, Giant Hogweed inflicts horrendous harm upon humans with just a simple touch. Resembling a creature from another world, Giant Hogweed only becomes deadly when paired with an earthly force—our Sun. This plant is photosensitive, secreting a thick sap that coats the skin upon contact. Almost immediately, the sap reacts with sunlight, sparking a chemical reaction that burns through the skin and deeper tissues, leading to necrosis and the formation of large purple lesions that may persist for years. More horrifying still is the risk that even a tiny amount of sap can cause permanent blindness if it contacts the eyes. Giant Hogweed can grow up to 8 feet tall and has become a priority for urgent action by invasive plant control departments. Interestingly, pigs are immune to its effects.
7. Death Camas
In the oak woodlands of Western North America, fields dotted with bright flowers mark the presence of edible Camas bulbs, which were a staple food source for First Nations. These bulbs, reminiscent of potatoes, were cultivated through controlled burning of the fields. However, a dangerous relative of the edible Camas plant also thrives in these areas. Known as Toxicoscordion venenosum, or Death Camas, this plant is one of the deadliest in existence. Its appearance closely resembles the edible variety, but the difference in color could mean life or death for someone mistaken in their judgment. Consuming any amount of Death Camas, except the tiniest, results in a swift demise due to organ failure and blood poisoning. The discovery of the lethal effects of Death Camas is something we can only imagine.
6. Angel Trumpet
The striking Angel Trumpet vine, native to South American forests, delivers a deadly combination of potent toxins—atropine, hyoscyamine, and the mind-altering scopolamine. Unlike many plants on this list, the Angel Trumpet is more dangerous when manipulated by humans than by its inherent toxicity alone. In 2007, the plant was featured in the documentary “Colombian Devil’s Breath,” which detailed its use by criminal gangs who extracted scopolamine from this otherworldly-looking weed to turn victims into literal zombies. This 'hypnotizing herb' leaves its victims completely conscious but unaware of their actions. One chilling account in the documentary involved a man who had scopolamine powder thrown in his face, only to unknowingly empty his entire apartment into the robbers' van. Some brave (or reckless) individuals who have experimented with this plant have seriously harmed themselves while in a psychotic state.
5. Himalayan Blackberry
Himalayan Blackberry is a plant you definitely don’t want to get tangled up with—literally. It’s like a briar on steroids, with a single plant capable of covering half an acre with its dangerous, thorn-laden stems. Unlike regular blackberries, each stalk of the Himalayan variety can be up to 2 inches thick, covered in inch-long thorns that jut out like shark’s teeth. While typical brambles might only leave a scratch, an encounter with these blackberries could land you in the emergency room. A simple stumble into the seemingly harmless plants could cause serious injuries, such as eye damage and severe blood loss from punctured veins or arteries. Hikers often suffer accidents when they trip in a gully full of these hazardous spikes. Hazard management teams are known to wear heavy protective gear, including shatterproof goggles, due to the potential for the spiked canes to snap back with enough force to slash someone’s eyes.
4. Gympie-Gympie
The Australian Gympie-Gympie tree claims the title of the world’s deadliest tree and the most painful of all stinging plants. The agony caused by the Gympie-Gympie has been compared to being sprayed with scalding acid, and in some tragic cases, it has driven victims to suicide. One particularly harrowing incident involved a man who, after mistakenly using a Gympie-Gympie leaf as toilet paper in the bush, ended up shooting himself in response to the unbearable pain. The tree’s toxin is one of the most enduringly painful known to man, with burning sensations lingering for up to two years after contact. This is thought to be due to the poison’s persistence in the venomous needles that are injected during contact. A study showed that the poison can remain active for as long as 20 years. Even healthy individuals are at risk of anaphylactic shock, prompting Australian forestry departments to provide hazmat suits to workers in affected regions.
3. Red Tide Algae
The Red Tide is a terrifying event that plagues the Earth’s coastlines. During certain times of the year, the waters may take on a reddish hue as countless tiny seaweeds, known as Algera pelagius, thrive after mysterious nutrient influxes, often combined with changes in temperature. The algae is quickly absorbed by shellfish, and is highly neurotoxic. The deadly bloom can paralyze limbs rapidly, and even worse, it can numb the respiratory system when humans consume contaminated shellfish. Many believe that the Red Tide is the origin of the Biblical Plague where waters turned to blood. This phenomenon was also responsible for the death of one of Captain George Vancouver’s crew members during his exploration of Western Canada. As a result, many states and provinces have imposed harvesting bans due to the risks of 'paralytic shellfish poisoning.' In addition to affecting humans, entire beaches have been covered with the bodies of dead seabirds and ducks that were exposed to the toxic algae. Red Tide may even offer an explanation for some of the mysterious animal deaths recorded in a recent list.
2. Spurge Laurel
While the imposing Giant Hogweed grabs attention with its otherworldly appearance, we turn our focus to a more unassuming plant, often seen in ornamental gardens and public spaces. Spurge Laurel, which is closely related to the Bay Leaf, appears as a small shrub with glossy leaves. However, this inconspicuous plant carries one of the most horrific deaths in the plant kingdom. Containing potent biocides, Spurge Laurel can cause blistering and irritation if mishandled, but its true danger lies in its internal effects. Ingesting even a couple of its berries leads to severe internal bleeding and organ failure, with death occurring within hours. Interestingly, some tribes have used Spurge Laurel as a last-resort remedy for seriously infected patients, though the cure is often worse than the disease. Wild Greenfinches, however, can consume it without any ill effects.
1. New Zealand Tree Nettle
The New Zealand Tree Nettle is one of only two plants in existence that has caused a human death simply by the unfortunate act of coming into contact with it. This monstrous plant is a tree-sized version of the common stinging nettle, growing up to 15 feet tall. The plant blends into its surroundings with remarkable camouflage, but it is armed with unusually large needles that inject a lethal and corrosive neurotoxin at the slightest touch. Extreme caution is required when hiking to avoid fatal encounters. In one tragic incident, a New Zealand hunter was killed after brushing against this deadly nettle, which caused a shutdown of the nervous system through the rapid action of its venom. If the victim does not die immediately, the toxin can lead to polyneuropathy, a gradual and potentially fatal breakdown of the nervous system over time.
