If you think the fantastical flora of Pandora only exists on screen, think again—these incredible plants are right here on Earth, ready to amaze you.

Incredible Plants That Wow

10 The Giant Trees

If you picture the biggest tree you’ve ever seen and then multiply its size by ten, you’re approaching the sheer bulk of a giant sequoia. These titans are native to California’s Sierra Nevada range and belong to the cypress family.

The record‑holding coast redwood, Hyperion, soars to at least 115.5 meters (about 379 feet)—roughly the height of a 38‑story skyscraper. Meanwhile, the giant sequoia dubbed General Sherman claims the crown for volume, boasting a trunk volume of 1,487 cubic meters (52,508 ft³).

General Sherman also tips the scales at an estimated 1.2 million kilograms (2.7 million lb) and measures a ground‑level circumference of 31 meters (102 ft). Its bark can be up to 0.9 meters (3 ft) thick, acting like a natural fire‑proof shield.

Some of these ancient giants have survived more than 3,000 years, likely thanks to that fire‑resistant armor. Their unwritten motto? “Just keep growing!”

9 The Shy Plant

Meet Mimosa pudica, the botanical equivalent of a shy person who curls up when you poke it. Native to tropical regions, this fast‑growing weed folds its leaflets inward the moment they sense a touch or a gust of wind.

The Latin “pudica” translates to “shy,” “bashful,” or “shrinking away,” which perfectly describes its defensive maneuver. The plant achieves the collapse by shifting water out of its cells, effectively “deflating” the leaves.

Beyond its dramatic reactions, Mimosa pudica has a medicinal side‑track: in various cultures it’s used as a painkiller, a sleep aid, and even a remedy for snake bites.

8 The Glowing Mushroom

While Earth’s forests lack the full‑blown bioluminescence of Pandora, certain fungi light up the night. One standout is Mycena chlorophos, a Japanese mushroom that glows neon green the moment darkness falls.

The glow comes from luciferin, a chemical that reacts with oxygen in the presence of the enzyme luciferase—much like a glow stick. This same chemistry powers deep‑sea creatures such as anglerfish.

7 The Algae That Makes The Ocean Glitter

Enter Noctiluca scintillans, affectionately dubbed “sea sparkle.” These microscopic algae create a dazzling blue phosphorescence whenever waves crash or a kayak paddles through their waters.

Thousands of cells can fit into a single drop, and their collective glow can illuminate entire shorelines. Scientists think the illumination may either startle predators or signal larger hunters to feast on the algae’s own predators.

Fish tend to avoid the shimmering patches, possibly because the algae release ammonia that irritates their gills, even though the substance isn’t outright toxic.

6 The Flower That Looks Like A Bird

Strelitzia reginae, better known as the bird of paradise, lives up to its flamboyant nickname. Within three to five years, the plant reaches about 1.5 meters (5 ft) and bursts into blossoms that mimic the shape and color of tropical birds.

Originally hailing from South Africa, the flower now serves as Los Angeles’ official blossom. Traditional medicine has tapped its properties to soothe allergy symptoms, though you should consult a doctor before experimenting.

Even cooler: the plant is surprisingly hardy and can thrive in cooler climates, making it a show‑stopper for many home gardens.

5 The Enormous Water Lily

Don’t be fooled by Photoshop tricks—Victoria amazonica’s massive leaves are real. Each floating leaf can span up to 2.5 meters (8.2 ft) across, and a single plant may produce as many as 50 leaves, turning ponds into floating gardens.

The blooms are fleeting, lasting only two days, but they’re larger than typical water lily flowers. Imagine a toddler perched on one of those giant pads—yes, it’s possible!

4 The Grass That Grows While You Wait

Enter Phyllostachys edulis, the tortoise‑shell bamboo that can sprint upward at a jaw‑dropping rate of about 1 meter (3.3 ft) per day in its native Chinese habitats.

Although it looks like a tree, it’s actually a woody grass. Watching it for an hour yields roughly 4.1 centimeters (1.6 in) of growth, and a single stem can outgrow a person by a full meter in just 24 hours.

3 The Tree That Fights Back

If the name Gympie‑Gympie stinging tree doesn’t already send chills down your spine, its hidden arsenal will. This Australian shrub may look harmless, but every part of it is cloaked in tiny hairs loaded with a potent toxin.

When the hairs are brushed off, they break and release chemicals that cause an intense, burning sensation—often compared to being scalded with acid. The pain can linger for months, sometimes driving sufferers to extreme distress.

Even brief contact can trigger severe allergic reactions, including anaphylaxis, making the plant a clear “stay away” sign for any curious wanderer.

2 The Indestructible Tree

Ginkgo biloba, a living fossil that survived the age of dinosaurs, earned its reputation for resilience after the Hiroshima bomb. A ginkgo standing merely 1,370 meters (4,500 ft) from the blast’s epicenter sprouted fresh branches despite the devastation around it.

Scientists still puzzle over its ability to rebound, but the tree’s tenacity turned it into a symbol of hope. Seeds from those survivor trees have been propagated worldwide, spreading the legend of the nuclear‑proof ginkgo.

1 The Plant That Is Also An Animal

While Pandora’s “zooplantae” blur the line between flora and fauna, Earth already hosts a creature that does just that: the sea anemone. Researchers discovered that these marine animals contain both plant‑derived and animal‑derived microRNAs, hinting at a genetic hybrid nature.

This blend suggests that the genetic dialogue between kingdoms is far more intricate than previously thought, making sea anemones a real‑world echo of Avatar’s fantastical biology.

When you think of the phrase “10 places plants,” you might picture gardens or forests, but the reality is far more dramatic. Across the globe, green life has surged back into spaces once dominated by humans, turning cities, resorts, islands and even a rusting ship into verdant showcases of nature’s persistence. Below we wander through each of these ten astonishing locations, where flora has reclaimed the stage.

10 Wangaratta

Most of the time, plants take over because humans have abandoned a particular space and stopped actively pushing the plants back. However, there is at least one time that the plants pushed first.

Wangaratta is a city in Northeast Victoria that exists mostly as a service center for the surrounding farmland. It is a well‑established community where people clearly maintain boundaries against plant overgrowth, and you rarely hear of plants attacking the township.

Nevertheless, one bright morning in 2016, residents awoke to a surreal sight: the town was buried under a massive tumbleweed known as “hairy panic.” The invasive plant smothered houses up to their roofs, hid cars completely, and turned streets into a sea of white fluff.

The council declined to intervene, citing that the tumbleweed posed no fire hazard. The blame fell on a single farmer who, despite drought and hard conditions, could not keep his land clear. The poor bloke probably spent that evening nursing a lonely pint at the local pub.

9 Grossinger’s Catskill Resort Hotel

Kellerman’s, the resort visited by Baby and her family in the wonderful movie Dirty Dancing, was based on a real place called Grossinger’s Catskill Resort Hotel, near Liberty, New York.

In the middle of the 20th century, a handful of these grand hotels dotted the Catskills, catering mainly to affluent Jewish New Yorkers who escaped the city heat on summer weekends. As air travel became cheaper and air‑conditioning more common, the allure of these woodland retreats faded.

Grossinger’s was once a glittering palace with ballrooms, swimming pools and a skating rink. Today, the same massive structure is draped in ferns, moss and climbing vines. Trees inch ever closer, turning the once‑opulent resort into a living museum of nature’s quiet takeover.

8 Houtouwan

There are a number of places on this little blue planet where the beauty of overgrown plants is a tourist draw. One such location is the little fishing village of Houtouwan, nestled into China’s Shengshan Island, one of the 400 tiny islands of the Shengsi archipelago.

Houtouwan becomes greener by the day. Tourists flock to witness the eerie charm of the abandoned settlement, now home to only a handful of residents. In the 1990s the village was largely deserted as its remote location and lack of services drove people away.

Today, former resident Xu Yueding and his wife Tang Yaxue return each day to sell bottled water to curious visitors. The village has no electricity or running water, yet the encroaching vines and moss give it a hauntingly beautiful atmosphere.

7 Gottingen

Gottingen, Germany, is a very attractive university city which got a bit of media attention in 2013 for a hostile plant takeover that was aided by humans.

Much to the surprise of many residents, peaceful Gottingen stepped to the forefront of political activism when a group of pro‑marijuana activists called “A Few Autonomous Flower Children” (maybe it sounds better in German?) sowed more than the city council was prepared to reap. Suddenly, like mushrooms after a rain, the city sprouted hundreds of marijuana plants. All over the place. Anywhere they could grow.

The plants sown were low‑THC varieties that, while illegal, would be pretty pointless to smoke. The group invited submissions for a photo contest showcasing the beauty of the town’s plants; plot twist, everyone was a winner. The police used the contest photos to locate and remove the offending flora, even the decorative ones planted outside the police station.

6 Pripyat

When the Chernobyl Nuclear Power Plant melted down in 1986, a lot of the surrounding area became part of the Chernobyl Exclusion Zone. One of the cities in this area was Pripyat, a formerly bustling city of almost 50,000 people.

Pripyat was evacuated and has been largely left alone ever since. It became not just an abandoned city but one reclaimed by nature, with plants growing everywhere, from the seats of still‑operational bumper cars to rooftops adorned by the Soviet hammer and sickle.

Trees stretch above the city skyline, and wolves, elk, and boars wander past abandoned shops and schools. It looks like a scene from the end of the world, undisturbed by humans, left only to the plants that cover the town square and the animals that brush by them on their way around what is now their city.

5 North Brother Island

City waterways often have fascinating, storied islands that you can pass by and never know about until you look them up. One of these islands sits between the Bronx and Rikers Island in New York City and is called North Brother Island.

In 1885, the city built Riverside Hospital on the island, which served as a quarantine for patients with communicable diseases such as yellow fever and smallpox. North Brother’s most famous resident was “Typhoid” Mary Mallon, who infected many people while working as a cook, despite not showing any symptoms of the disease. She died on the island of pneumonia in 1938, having been detained there in 1907, released in 1910, and forcibly brought back in 1915.

The island was later used as veteran housing and then to treat heroin addicts. It has been abandoned since 1963 and has been thoroughly reclaimed by nature as a bird sanctuary for black‑crowned night herons.

On the island, the still‑standing red brick buildings are slowly being draped by vines. Vegetation grows close to the windows, and thick trees that would have been seeds at the time it was abandoned are now pressing near the walls. Some floors are covered in a blanket of moss. From the Bronx shore, the island looks cloaked in greenery, with only the hospital chimneys hinting at its past.

4 The SS Ayrfield

Most places where trees grow are earthly ones. True, some trees do grow on roofs and in rooms, but there is at least one boat where trees have taken root and grown, making the vessel a permanent fixture and attraction in Homebush Bay in New South Wales.

The SS Ayrfield, before it became a water‑bound jardinière, was a steam collier built in the UK in 1911 and registered in Sydney in 1912. It spent the years of World War II taking supplies to Australian soldiers in the South Pacific under the name SS Corrimal. It changed hands several times and was renamed Ayrfield in 1951 by the Miller Steamship Company.

The ship was sent to Homebush Bay to be destroyed in 1972 and is still there. Clearly, it isn’t going anywhere now, and neither are its trees.

3 Clovis

It seems that Wangaratta wasn’t the first town to be invaded by tumbleweed, and the sheer volume of tumbleweed that rolled into Clovis, New Mexico, in 2014 might have made that plant attack worse.

People were trapped in their houses, roads were impassable, and Clovis residents had to dig themselves out. The tumbleweed took over the town in piles that covered entire apartments. Luckily for the residents of Clovis, the city did help with the removal of the tumbleweed. Scooping up and disposing of the giant attacking plant balls was a mammoth job.

2 Cambodian Temples

Everyone is familiar with the temple complex of Angkor Wat. Although it isn’t the only Khmer‑built temple complex in Cambodia, it seems to be the most well‑known. Many people travel to Cambodia specifically to visit its historical temples, many of which have fallen to ruin in the jungle.

The trees that have so gracefully taken over Cambodia’s temples are strangler figs, and that’s not just a name. The trees strangle and crush anything they grow around, from other host trees to the rock temples that they wind around like wooden anacondas, crushing the structures from the foundations to the roofs. The giant trees send roots into every kind of crevice, wedging them open and holding them secure at the same time.

Platforms have been built so that tourists can have their photos taken with the giant roots of the strangler fig, smiling next to a force of nature that is both destructive and protective.

1 Ross Island

When Britain ruled India, they established a penal settlement in the Andaman Islands. They needed somewhere for the administrators of the penal settlement to live, and they chose Ross Island, which had originally been inhabited for a few years in the late 1780s but had been abandoned.

Almost exactly a century later, it was rebuilt, and the British lived there until 1942, when the islands were captured by the Japanese.

After the Japanese surrender, the island was handed back to Britain and then back to India when India won its independence. The island and its structures—homes, a hospital, a church, shopping facilities, and a big swimming pool—have been reclaimed by the roots of the ficus plant. The plants have all but obscured the buildings, criss‑crossing root systems engulfing the structures.

Ross Island has become a tourist attraction serviced by a ferry, offering visitors a glimpse into a possible future where humans are gone and plants have reclaimed everything.

Christy Heather is an Australian novelist, professional writer, and criminal lawyer who is not covered in vines.

Welcome to a tour of 10 startling discoveries that reveal just how extraordinary plants really are, from extending human lives to whispering through the soil.

10. Startling Discoveries About Plants

10. They Help You Live Longer

Everyone knows pets can boost our wellbeing, but plants pull off a similar magic trick.

Researchers from Harvard T.H. Chan School of Public Health teamed up with Brigham and Women’s Hospital to scan over 100,000 American women, discovering that a greener home slashed the mortality rate by 12 percent. Participants surrounded by grass, trees, and shrubs also showed fewer cases of depression, kidney disease, respiratory ailments, and even cancer.

Why does foliage have this power? It could be the extra room for social activities or exercise, cleaner air, or simply the soothing vibe of nature. Whatever the cause, the data points to a clear health advantage.

Linda Birnbaum, director of the National Institute of Environmental Health Sciences, summed it up: “It is important to know that trees and plants provide health benefits in our communities as well as beauty. The finding of reduced mortality suggests that vegetation may be important to health in a broad range of ways.”

So the fountain of youth isn’t a mystical spring—it’s the humble potted fern on your windowsill.

9. They Contribute To Pollution

The term “alien invader” conjures images of green‑skinned extraterrestrials, but it also fits a tenacious vine that’s taken over the American South.

Kudzu, a legume relative of peanuts, was introduced in 1876 and now spreads across 50,000 hectares each year, blanketing forests, houses, utility poles, and even entire neighborhoods.

Beyond choking ecosystems, kudzu accelerates greenhouse‑gas emissions. Soil stores massive amounts of carbon, releasing it slowly as microbes decompose organic matter. Kudzu’s tender leaves and stems break down faster, prompting microbes to release up to 4.8 tons of carbon per year in invaded forests.

8. They Can ‘Hear’

Being chewed up sounds like a nightmare, but plants might actually tune into that crunch.

Scientists at the University of Missouri–Columbia placed caterpillars on a cabbage‑type plant, recorded the munching vibrations, and later played those sounds back to the same plant without any insects present.

The plant responded by cranking out mustard‑oil chemicals—defensive compounds that repel herbivores. Remarkably, it distinguished harmful chewing vibrations from benign wind or insect mating noises, suggesting a sophisticated vibration‑sensing system.

Heidi Appel, a researcher on the project, noted, “Our work is the first example of how plants respond to an ecologically relevant vibration. We found that feeding vibrations signal changes in the plant cells’ metabolism, creating more defensive chemicals that can repel attacks from caterpillars.”

Future pest‑control could rely on sound instead of chemicals.

7. They Water Themselves

Imagine a plant that can fetch its own drink—no watering can required.

The desert rhubarb has mastered this trick, harvesting up to sixteen times more water than its neighboring species.

Its few, sizable leaves are cloaked in waxy ridges that act like miniature mountain ranges, channeling dew and rain toward a single central root.

This clever architecture lets the plant soak soil to depths of at least ten centimeters, rivaling Mediterranean species despite the scorching desert environment.

6. They Transform Into Beating Hearts

Medical breakthroughs have taken a leaf‑like turn, using spinach as a scaffold for human heart tissue.

Scientists stripped a spinach leaf of its cells, leaving a delicate cellulose framework. When bathed in living human cells, those cells colonized the leaf’s vascular network, forming a miniature heart that actually pumps fluid.

This innovation could one day help patients whose hearts need repair, offering a natural, plant‑derived scaffold for tissue engineering.

5. They Eat Each Other

Plants are often the poster children for vegetarianism, yet some turn the tables on both insects and fellow flora.

Bladderworts, aquatic carnivores, sprout tiny hollow sacs beneath the water’s surface. When tiny worms or larvae trigger a hair, a pressure shift snaps a door open, sucking the prey into a watery stomach.

Surprisingly, researchers found that many of these “stomachs” also contain algae—up to 80 % of the captured material in certain conditions—especially in soft‑water habitats where animal prey is scarce.

This suggests bladderworts can supplement their diet with algae, making them rare examples of omnivorous plants.

4. They Cry For Help

Plants can’t speak, but they certainly know how to send a distress signal.

When leaves of thale cress are infected, their roots—if paired with the beneficial bacterium Bacillus subtilis—release malic acid, a chemical that summons helpful microbes to the site of infection.

Harsh Bais of the University of Delaware observed that infected plants with protected roots survived unscathed, thanks to this long‑distance communication.

“Plants are a lot smarter than we give them credit for,” Bais remarked, highlighting the sophisticated defensive network plants possess.

3. They Learn From Experience

Plants may lack brains, but they certainly gather and act on sensory data.

Michael Pollan points out that plants integrate information about sound, gravity, and water, then respond appropriately—much like animals do without a nervous system.

In a striking experiment, mimosa plants were dropped repeatedly. After several harmless drops, the leaves stopped folding, indicating the plant “learned” that the threat was harmless, retaining this memory for up to a month.

These findings blur the line between plant and animal cognition, suggesting plants possess a form of learning and memory.

2. They ‘Recognize’ Their Siblings

Sea rockets (Cakile maritima) show a surprising level of family loyalty.

When grown alongside siblings, they keep roots short, intertwine leaves, and essentially “play nice.” In contrast, when paired with unrelated plants, they extend longer roots and stiffen their stems to outcompete strangers.

Harsh Bais discovered that seedlings exposed to root secretions from non‑relatives grew longer lateral roots, indicating a chemical recognition system.

This insight could help gardeners pair compatible plants, improving growth outcomes.

1. Plant Telephones

Plants act as tiny communication hubs for insects both above and below ground.

When subterranean bugs feast on roots, they release chemicals that travel up the plant’s leaves, warning above‑ground insects that the plant’s roots are already occupied.

This signaling also benefits parasitic wasps, which can detect whether a plant’s roots are free before laying eggs.

While the universality of this “plant telephone” system remains under study, it highlights a fascinating cross‑species dialogue mediated by plants.

Med students have to learn about a vast amount of drugs in medical school and are expected to know about them. You might be surprised how many medicines were actually derived from nature. Many know that aspirin is derived from willow bark, but few realize just how many other medications are derived from plants.

10 Cannabis Sativa And Dronabinol

The Cannabis sativa plant has been part of the recent controversy regarding the legality of marijuana. While marijuana is most commonly associated with the cannabis plant, there is another extremely useful pharmaceutical that has come from it.

Many know the symptoms of marijuana intoxication, including red eyes, dilated pupils, dry mouth, increased appetite, slowed reaction time, euphoria, dizziness, shallow breathing, and increased heart rate. While some of these symptoms seem unappealing, the medical community has found others to be useful in treating certain populations of patients.

The drug dronabinol has been created as a synthetic form of THC to utilize some of marijuana’s side effects. There are various uses for the drug, but most commonly, it is used as an appetite stimulant for patients with AIDS and as an antiemetic in patients receiving chemotherapy.

While there has been some controversy regarding the use of dronabinol, it has been shown to be minimally harmful with a low potential for abuse. Who knew that giving someone the munchies could be so beneficial?

9 Podophyllum Peltatum And Etoposide

The Native Americans have recorded using the plant Podophyllum peltatum as a purgative, antiparasitic, and cathartic hundreds of years before its usefulness was officially recognized. Interestingly, the Penobscot people of Maine even appeared to be using it to treat “cancer.” The Iroquois additionally used it to treat snakebites and as a suicide agent. Despite this, the medical use for P. peltatum was not official in the United States until 1820 and not until 1861 in Europe.

Hartmann Stahelin was a Swiss pharmacologist who had made large contributions to the cancer therapy field. He had a particular proclivity for biomedical sciences and was recruited to lead the pharmacology department in Basel in hopes of researching cancer and immunology in 1955.

Once in Basel, he lead the discovery of various antitumor agents from P. peltatum, also known as mayapple. Initially considered by chemists to be “dirt,” Stahelin noticed that a particular extract from the Podophyllum plant had interesting properties. After purifying this compound, it was found to be a new class of antitumor medication.

Named etoposide, the medication works by stopping the tumor cells’ ability to divide. It blocks a specific enzyme that cells need in order to replicate. Therefore, rapidly dividing cells such as cancer cells are heavily affected. Currently, etoposide is used to treat various cancers, especially that of the lung, and can be thanked for saving many lives.

8 The Calabar Bean And Physostigmine

The Efik people from the Akwa Iborn State, or modern‑day Southeast Nigeria, were the first to be in contact with physostigmine from the calabar bean (Physostigma venenosum). Use of the calabar bean was very common in Efik culture as an ordeal poison for those accused of witchcraft. The milky extract of the bean was given to the accused, and if they died, the accusation of witchcraft was confirmed. If they lived, usually due to vomiting the poison out, they were declared innocent and set free.

Missionaries wrote about the Efik’s use of the calabar bean, and some of the beans found their way back to Scotland. In 1855, a toxicologist named Robert Christison decided to test the poison’s toxicity by consuming a bean and surviving to document what he experienced.

It was studied throughout the 1860s, most notably by Douglas Argyll Robertson, who was the first to use the calabar bean extracts medically and recorded its effects on the pupil. The most potent component from the calabar bean was finally isolated and named physostigmine by Thomas Fraser. In 1867, Ludwig Laqueur tested the extract on himself and used it to successfully treat his glaucoma. By the 1920s, Otto Loewi discovered the neurotransmitter acetylcholine and found that the calabar bean extract worked by increasing that neurotransmitter, having profound effects on the parasympathetic nervous system.

Medically, physostigmine does increase the amount of the neurotransmitter acetylcholine by blocking the enzyme acetylcholinesterase, which breaks it down. It is especially useful in treating the disease myasthenia gravis and has been more recently used to treat Alzheimer’s, as it has the ability to cross the blood‑brain barrier.

7 Meadow Saffron And Colchicine

The use of the plant Colchicum autumnale, or meadow saffron, for medical problems has been recorded as far back as 1500 BC on the ancient Egyptian Ebers Papyrus for rheumatism and swelling. Since then, C. autumnale has been a treatment for other maladies such as gout, familial Mediterranean fever, Behcet’s disease, and pericarditis. It works in a similar way to Taxol, as it blocks microtubules.

As early as the first century AD, C. autumnale was being described as a treatment for gout by Pedanius Dioscorides. Gout is a type of arthritis characterized by needle‑shaped crystals building up in the joints, causing sudden pain attacks, swelling, and redness. Others, such as Alexander of Tralles, Persian physician Avicenna, and Ambroise Pare have also recommended C. autumnale as a treatment for gout.

Colchicine itself was isolated from C. autumnale in 1820 by French chemists P.S. Pelletier and J.B. Caventou. It was later purified by P.L. Geiger in 1833. Despite its long history of being effective, colchicine actually had no FDA‑approved prescribing information, dosage, recommendation, or drug interaction warnings until as recently as 2009.

6 Indian Snakeroot And Reserpine

Rauwolfia serpentina (Indian snakeroot or sarpagandha) is a plant that was known in India for its medicinal purposes long before its discovery by the Western world. Georg Rumpf, a botanist with the Dutch East India Trading Company, first noticed the plant in 1755 during his travels. He recorded it as being used as a treatment for insanity in South Asia. Extracts from the roots of the Indian snakeroot were sold cheaply in markets all over India as pagalon ki dawa, or “drugs for the mad.” In addition, it was also used by mothers in Eastern India to put their crying babies to sleep as well as a treatment for labor, snakebites, fever, and intestinal problems. Mahatma Gandhi reportedly used extracts from the roots as a tranquilizer as well.

By the early 20th century, India undertook efforts to standardize and research the pharmacologic properties of sarpagandha. Professor Salimuzzaman Siddiqu began systematic research on the active constituents of the roots and root bark in 1927. Dr. Kartick Chandra Bose and Gananath Sen, two leading physicians from Calcutta (now called Kolkata), also independently noted the use of the extract to treat high blood pressure and insanity. Dr. Rustom Vakil, known as the father of modern cardiology in India, popularized the use of the plant to treat high blood pressure.

Isolated in 1952 from the dried root of R. serpentina, reserpine quickly became popular in Western medicine. It became the first drug ever to successfully show antidepressant properties in a randomized placebo‑controlled trial. Though it is rarely used today due to its immense side‑effect profile, it was critical in furthering our understanding of the role of neurotransmitters in depression and blood pressure.

5 Indian Hemp And Pilocarpine

As settlers began coming to the New World in the early 1600s, they noticed that the indigenous tribes of Brazil had a vast knowledge of the medicinal uses of local plants. One plant in particular, Pilocarpus jaborandi (Indian hemp), was used to treat a variety of maladies but most commonly for fever. It was found that the leaves could trigger profuse sweating, salivation, and urination as a way to rid the body of toxins. The name jaborandi even comes from the Tupi translation for “what causes slobbering.”

In the 1870s, P. jaborandi was incorporated into Western medicine and became a popular treatment for intestinal problems, lung problems, fever, skin issues, kidney disease, and edema in Europe. Surprisingly, the plant was also found to be an effective antidote to deadly nightshade poisoning. By 1875, pilocarpine was isolated from the plant and found to be the main culprit behind its effects. This was discovered almost simultaneously by two different researchers, one in France and one in England.

Pilocarpine was soon found to be an extremely effective treatment for glaucoma by decreasing the pressure in the eye. Even today, it remains a very popular and widely used treatment for glaucoma as well as a means to induce perspiration when trying to diagnose cystic fibrosis. Laboratories still haven’t been able to fully replicate and synthesize the pilocarpine found in P. jaborandi. This plant remains one of Brazil’s largest and most important exports.

4 The Pacific Yew Tree And Paclitaxel

Researchers are continuously searching for new and innovative ways to fight cancer. Sometimes, the treatments that they are searching for may be much closer to home than they realize. In 1955, the National Cancer Institute created the Cancer Chemotherapy National Service Center (CCNSC) in hopes of finding new cancer treatments. In the 1960s, the CCNSC looked to partner with the US Department of Agriculture to search for these cures within nature. Over the course of about 20 years, 30,000 natural plant and animal products were tested.

Out of the 30,000 samples, one was found to be pivotal in the treatment of cancer. Two researchers, Dr. Monroe Wall and Mansukh Wani, discovered that the extracts from the bark of the Pacific yew tree (Taxus brevifolia), indigenous to the Pacific Northwest, were toxic to tumor cells. Later, it was found that the toxic compound is actually synthesized by a fungus within the bark. Thus, the new chemotherapy drug known as paclitaxel was born.

Paclitaxel (brand name Taxol) is commonly used to treat breast and ovarian cancer. Medically, it works by blocking microtubules, which basically stops the cancer cells from being able to divide and grow. Since its discovery, paclitaxel has become a big part of cancer treatment and saved millions of lives.

3 Deadly Nightshade And Atropine

Atropa belladonna, commonly known as belladonna or deadly nightshade, is an herb that has been used for many centuries by many people to treat a wide variety of maladies. The plant is native to Europe, North Africa, and West Asia but has been more recently introduced to Canada and the United States. Prior to the Middle Ages, the herb was used as an anesthetic for surgery. Its deadly toxicity enabled its use as a poison for political enemies or on the tip of an arrow by the military in ancient Rome.

During the Middle Ages, the deadly nightshade plant became very popular for cosmetic purposes. Venetian women would use it to redden the pigment of their skin as a type of blush. Another common use for the herb was for dilating the pupils of women in order to make them more seductive and attractive. The herb obtained the name belladonna, meaning “beautiful lady,” exactly because of this use.

Despite years of its use as a poison and cosmetic, it was soon realized that A. belladonna had more of an ability to help than previously realized. It could be used as a pain reliever, muscle relaxant, anti‑inflammatory, whooping cough treatment, and hay fever treatment. In the 1930s, the therapeutic component of belladonna, known as atropine, was isolated. Belladonna, by itself, does not have approved medical uses, but atropine has since become an extremely useful medication in the medical community.

Atropine is known as an anticholinergic, meaning it blocks the effects of the neurotransmitter acetylcholine. Its mechanism of action is basically opposite to that of physostigmine. Because of this, atropine can cause pupil dilation, increased heart rate, and decreased secretions. In addition to its uses of raising heart rate and decreasing saliva prior to surgery, it can also be used to reverse certain overdoses. Various derivatives of atropine have also been developed for other medical uses. For example, tiotropium and ipratropium bromide are used in various lung disorders.

2 The Cinchona Tree And Quinine

Found in the bark of the cinchona tree in South America, quinine was initially used by the Quechua as a muscle relaxant. It was then brought to Europe by the Jesuits, and by 1570, the Spanish had become aware of the cinchona bark’s medicinal properties. Nicolas Monardes and Juan Fragoso recorded that it could be used as a treatment for diarrhea. Despite the varied ancient uses for quinine, the big discovery for its use came in the early 17th century.

The marshes and swamps surrounding Rome in the early 17th century were teeming with malaria‑ridden mosquitoes. Malaria is a mosquito‑borne infection caused by parasitic protozoans. Symptoms include fever, fatigue, vomiting, headache, jaundice, seizures, and eventually death. Malaria led to the deaths of many popes, cardinals, and citizens at the time. Agostino Salumbrino, a Jesuit apothecary, had seen the cinchona bark being used for the shivering phase of malaria. At the time, Salumbrino did not know that the bark’s effect on malaria was unrelated to its effect on rigors, but regardless, he brought it to Rome.

Over the years, cinchona bark became one of the most valuable exports from Peru, even curing King Charles II. In 1737, Charles Marie de La Condamine discovered the most potent component of cinchona bark, and it was later isolated by Pierre Joseph Pelletier and Joseph Caventou in 1820. The extract was named quinine, based on the Incan word quina, meaning “bark” or “holy bark.”

Large‑scale malaria prophylaxis with quinine began around 1850. The drug actually played a very significant role in African colonization by Europeans. In the early 19th century, Peru tried to outlaw the export of cinchona bark, seeds, and saplings to maintain their monopoly. Fortunately for the world, the Dutch were successful at growing the tree in their Indonesian plantations and soon became the main supplier.

During World War II, the Allies were cut off from quinine when Germany conquered the Netherlands and Japan controlled Indonesia and the Philippines. The United States was eventually able to obtain four million seeds from the Philippines, but not before thousands of Allied troops died from malaria in Africa and the South Pacific. Thousands of Japanese troops also died despite their control, due to ineffective manufacturing of quinine.

Since its discovery, quinine has played a role in saving millions of lives as well as having major effects on wars, colonization, and history in general. It has since been replaced as the first‑line treatment for malaria by newer drugs in 2006 by the World Health Organization. Quinine can also be used for other diseases, such as babesiosis, restless leg syndrome, lupus, and arthritis.

1 Foxglove And Digoxin

Digoxin was once a mainstay treatment for heart failure and arrhythmia. It works by slowing the patient’s heart rate but increasing the heart’s contraction intensity. Unfortunately, the drug has a very narrow therapeutic index, meaning that it can be extremely easy to overdose, with disastrous effects.

Digoxin’s discovery by Scottish doctor William Withering occurred in 1775. He was working as a physician when a patient came to him suffering from a bad heart condition. Withering had nothing to offer the man, as there was no acceptable treatment for heart failure at the time. Thinking he was going to die, the patient went to a town gypsy and miraculously improved after being given an herbal remedy.

After seeing this, Dr. Withering searched for the gypsy, eventually finding her and demanding to know what was in her remedy. After Dr. Withering bargained with the gypsy, she finally revealed many things within the remedy, but Digitalis purpurea, or foxglove, was the main ingredient. The potency of foxglove was already well‑known, as it had been used as a poison in medieval trials by ordeal as well as externally applied to heal wounds.

Withering immediately went to work testing variations of the foxglove extract on 163 patients. He eventually found that dried, powdered leaves gave him the most successful results, and it was first officially used in 1785. Even though it is not as commonly used now, digoxin was revolutionary in its ability to help those with heart failure.

+ Chondrodendron Tomentosum Vine And Tubocurarine

For centuries, South American natives used poison from the Chondrodendron tomentosum vine to hunt animals. When Spanish conquistadors returned from the New World, they spoke of a mysterious “flying death.” In 1516, Peter Martyr d’Anghera, a chronicler, wrote of these tales in his book De Orbe Novo for King Ferdinand and Queen Isabella. Sir Walter Raleigh visited Venezuela in 1594 and also recorded the use of the poisoned arrows in his book Discovery of the Large, Rich and Beautiful Empire of Guiana. One of Sir Raleigh’s lieutenants referred to the poison as ourari, which later became various European renderings, one of which was “curare.”

Further exploration of South America was put on hold until the 18th century due to wars. A physician named Edward Bancroft traveled to South America for five years and was able to bring back some samples of curare. Sir Benjamin Brodie then used his samples on small animals. He was able to keep them alive after inflating their lungs with bellows. Charles Waterton moved to South America in 1804 and obtained some ourari from a local tribe. In 1814, he demonstrated its effects on three donkeys to an audience that included Sir Benjamin Brodie. The first donkey had its shoulder injected with the extract and died immediately. The second had it injected under a tourniquet on its leg and lived until the tourniquet was removed. The third died after its injection but was revived with bellows and went on to survive.

Curare was found to work at the nerve‑muscle junction after Claude Bernard’s experiments on frogs. Further research on curare discovered that it had potential as a muscle relaxant for patients under anesthesia. Curare‑like compounds were created, mirroring the original isolated curare. Today, these compounds are vital to almost all procedures involving anesthesia. The drugs work by causing complete skeletal muscle relaxation during surgery or mechanical ventilation as part of the general anesthesia protocol.

Advances in bio‑engineering have opened the door to virtually any kind of plant makeover you can imagine. Today’s garden staples have already been tweaked far beyond their ancestors – white carrots, salty cherry‑sized peaches, bitter mini watermelons, and eggplants that once resembled actual eggs. The possibilities keep expanding, and while the debate over genetically modified organisms rages on, a handful of audacious ideas stand out as truly game‑changing. Here are ten visionary plants that could rewrite the rules of agriculture, health, and even space travel.

10 Game Changing Plants Overview

Most of us reach for noisy, electricity‑guzzling air purifiers, yet those gadgets often add to the carbon load. French biotech firm Neoplants took a different route: they rewired a Devil’s Ivy (pothos) right down to its root system, creating a living purifier they call Neo P1. This engineered vine can do the work of up to thirty ordinary houseplants, sucking up volatile organic compounds (VOCs) like benzene, ethylene glycol, formaldehyde and toluene, then converting them into sugars, water, amino acids and fresh oxygen for the room.

The secret sauce lies in a set of genes borrowed from extremophile bacteria – microbes that thrive on toxic chemicals. Those bacterial genes give Neo P1 the power to metabolise pollutants that ordinary foliage would merely tolerate. By turning waste into growth material, the plant not only cleans the air but also fuels its own development, making it a self‑sustaining, climate‑friendly alternative to conventional filters.

Neoplants sees this as just the first step. Their roadmap envisions a whole suite of air‑cleaning botanicals, each tailored to different indoor environments, and all contributing to the broader fight against climate change by reducing reliance on energy‑intensive purification technologies.

9 Fixing Crops

The global appetite for protein has turned legumes – beans, pulses, peanuts – into nutritional heroes, not just because they pack a protein punch, but because they perform a remarkable chemical trick: nitrogen fixation. In nature, legumes partner with rhizobia bacteria to pull atmospheric nitrogen straight from the air, converting it into a form plants can use, thereby sidestepping the need for nitrogen‑rich fertilizers.

Imagine if staple crops like wheat, rice or maize could inherit this ability. Scientists are racing to graft the nitrogen‑fixing machinery into these giants, which would slash the massive fertilizer industry, lower greenhouse‑gas emissions, and give farmers in impoverished regions a boost without costly chemical inputs.

Critics caution that the path is riddled with challenges – from regulatory hurdles to the risk of herbicide‑resistant weeds that have plagued earlier GM attempts. Still, the potential upside – a world where crops feed themselves nitrogen‑wise – keeps the research momentum alive.

8 Cocaine Tobacco

Don’t expect a new boutique brand of white‑powder cigarettes on your local shelf. Instead, a team of Chinese scientists re‑engineered the biochemical pathway that produces cocaine, transplanting it into the genome of a common tobacco plant. The result? Tobacco leaves that synthesize trace amounts of cocaine, offering a novel platform to study the alkaloid’s properties without cultivating the illicit coca bush.

While the current yields are far too low to support any black‑market operation, the real excitement lies in the medical possibilities. By fine‑tuning the pathway, researchers hope to generate enough of the compound to explore its therapeutic potential, perhaps unlocking new pain‑relief drugs or neurological treatments.

The work underscores how genetic tools can repurpose everyday crops as bio‑factories for complex molecules, turning a plant traditionally associated with nicotine into a laboratory for pharmaceutical discovery.

7 Scorpion Venom Cabbage

What happens when you fuse the sting of a scorpion with the humble cabbage? Scientists answered that question by inserting a gene that codes for scorpion venom into the plant’s DNA, tweaking it so the toxin only harms insects. Early lab tests showed no toxicity to human cells, suggesting a promising new, plant‑based pesticide.

However, the approach is not without controversy. The studies were performed on human breast‑cancer cells in vitro, not on healthy tissue in a living organism, leaving unanswered questions about real‑world safety. Moreover, there’s a risk that the engineered cabbage could cross‑breed with wild relatives, spreading the venom gene beyond controlled fields and potentially upsetting local ecosystems.

Regulatory bodies like the FDA have historically been lax about GM crops that offer little direct benefit, and critics argue that farmers would still need conventional sprays to keep insects from munching the cabbage, resulting in a double dose of toxins for consumers.

6 Endospore Oak

Oak trees are, to a biologist, spectacularly inefficient – they produce more acorns than ever take root and shed millions of leaves each autumn, only to let them decay on the forest floor. Imagine if those discarded cells could instead become resilient spores, capable of traveling on the wind and cloning their parent tree. That is the bold vision behind the “Endospore Oak,” a genetically altered tree designed to generate millions of hardy spores that can lie dormant for millions of years.

The concept raises a host of ecological red flags. If the spore‑producing trait were to spread to invasive species like knotweed, the result could be a super‑weed apocalypse, with plants reproducing both by seeds and by indestructible spores. While the idea showcases how genetic tinkering could dramatically boost a species’ reproductive efficiency, it also underscores the need for stringent containment measures.

In short, the Endospore Oak reminds us that just because we can fill an evolutionary niche doesn’t mean we should – the natural world already balances countless trade‑offs that we might disrupt with unchecked engineering.

5 Supernutritious Fruit and Veg

Boosting the nutritional profile of crops isn’t a brand‑new idea – scientists have already rolled out protein‑enhanced potatoes, corn and rice, omega‑rich linseed, antioxidant‑laden tomatoes, and iron‑fortified lettuce. Even carrots have been tweaked to improve calcium absorption, and the “golden banana” blends a common banana with a provitamin‑A‑rich variety from Papua New Guinea.

What’s different now is the precision of CRISPR‑Cas9 editing, which lets researchers edit genes with surgical accuracy. The dreams range from beans that taste like chicken nuggets to carrots that crunch like potato chips, potatoes that hide a burger‑sized core, and sunflower seeds as large as small eggs. Less whimsical, but equally impactful, are proposals for hypo‑allergenic peanuts and lentils that rival meat in protein content.

These ambitions, however, ignite ethical debates. If we continue to reshape the nutritional landscape, how much control should humanity exert over nature? The line between solving hunger and playing god becomes increasingly blurred.

4 Eating Poplars

Phytoremediation – the practice of using plants to cleanse contaminated environments – has long been hailed as a green solution, but many species work too slowly for the scale of modern pollution. Researchers have turbo‑charged poplar trees by inserting enzymes from rabbit liver, enabling them to break down trichloroethylene (TCE), a carcinogenic solvent found in countless industrial sites.

Where ordinary poplars removed a meager three percent of TCE from contaminated water, the engineered versions slashed that figure to a staggering 91 percent, all while growing more vigorously. These super‑poplars also show promise against other pollutants, including vinyl chloride, a plastic‑making chemical, and airborne benzene.

The breakthrough suggests that with the right genetic upgrades, trees could become frontline defenders against the toxic legacy of industry, turning polluted soils and waters into thriving ecosystems.

3 Vaccine Banana

Vaccines are lifesavers, yet their high production costs keep them out of reach for many low‑income nations, leaving children vulnerable to preventable diseases like diarrhoea. One inventive answer is to embed vaccine antigens directly into the DNA of edible crops. Early experiments used potatoes to produce hepatitis B antigens, but because potatoes are rarely eaten raw, researchers pivoted to bananas – a cheap, widely cultivated fruit in many developing regions.

Scientists estimate that planting just ten hectares of specially engineered bananas could generate enough vaccine doses to immunise every child under five in Mexico. The delivery method involves puréeing the fruit and bottling it, ensuring each dose is precise and safe.

Beyond bananas, the concept has been tested in lettuce, carrots and even more tobacco, pointing toward a future where food itself becomes a vehicle for global health interventions.

2 DARPA’s Intelligent Trees

In 2017, the Defense Advanced Research Projects Agency (DARPA) launched its Advanced Plant Technologies (APT) program, seeking plants that could act as covert sensors for threats like pathogens, radiation, or even chemical weapons. These “sentinel plants” would report danger by subtly changing leaf colour or other discreet physiological cues.

The idea isn’t pure speculation – a 2011 breakthrough produced a plant that turns brown when it detects TNT in soil or air. Because plants draw power from sunlight and can be distributed en masse, they offer a stealthy, low‑maintenance alternative to electronic detectors.

DARPA now wants to push the envelope further, aiming for plants that can sense electromagnetic signals and provide more nuanced, reliable reporting, essentially turning flora into living bio‑computers.

1 Dyson Tree

The Dyson sphere, a megastructure that encircles a star to harvest its energy, has captured imaginations for decades. A lesser‑known cousin is the Dyson tree – a genetically engineered plant designed to grow on comets, creating its own breathable atmosphere inside the icy body. With a thick glass‑like bark to admit sunlight while retaining heat, the tree could transform a comet into a self‑sustaining habitat, complete with soil, water, and carbon sourced from the comet itself.

While the concept feels like science‑fiction, nature already offers clues: the voodoo lily and carrion flower generate their own heat, and the skunk cabbage can raise its surroundings by up to 60 °F, enough to melt frozen ground. In the distant Kuiper Belt, trillions of comets drift beyond Neptune – each a potential platform for Dyson trees, forming a sprawling “archipelago of city‑states” across the solar system.

Imagine a comet the size of Manhattan, its interior teeming with life, its towering trees dwarfing anything possible on Earth thanks to low gravity. Though still speculative, the Dyson tree illustrates how bio‑engineering could one day help humanity claim the final frontier.

They say the truth is stranger than fiction and while that may not always be true, sometimes the real world is more than willing to throw a few curveballs our way. As an example, look no further than nature. Even something as simple as plantlife can become exceedingly bizarre and downright creepy when you start looking into it. 

10. The Vampire Tree

Have you ever been taking a walk through the woods and noticed a decrepit old tree stump just sitting there looking old and rotten? It happens all the time. But what you may not be aware of is that there’s a chance that dead tree isn’t dead at all. 

Researchers in New Zealand found the stump of a kauri tree in a forest and while the top looked dead, underground life was still stirring. The tree had long ago grafted its roots into a massive network of other roots that likely belonged to dozens, if not hundreds, of other plants and trees. Effectively creating a subterranean superorganism, this root network shared nutrients among all parts. Even though the tree had been destroyed and no longer had leaves by which to survive thanks to photosynthesis, the other trees in the network were able to share nutrients and keep that stump alive.

Though in an ideal situation, every member organism would contribute resources, the almost dead kauri tree had become a parasite, like a vampire, living beyond death by draining life from its companions. But it may also be contributing, allowing the flow of nutrients between all members to the benefit of the whole. 

9. Kudzu Smothers Everything

Most of us would never look twice at kudzu. It’s a leafy green vine that looks like any other plant you might expect to find in the background. But it doesn’t stay in the background for long. Kudzu is an invasive species that grows at an incredible rate. It came to the US in the late 1800s as an ornamental plant and has also been used for erosion control. It’s well suited for that jib because kudzu can grow up to a foot per day. Vines can reach 100 feet in length. 

When kudzu spreads, it covers everything. Soil, cement, walls, telephone polls, other plants. It covers everything as it takes over. And with any given vine growing one foot per day, it doesn’t take long. But it gets worse. Kudzu produces isoprene and nitric oxide. When those come into contact with nitrogen, which makes up most of our atmosphere, it makes ozone. 

Ozone is a dangerous chemical at ground level, and it can kill off other plants, not to mention animals. Kudzu causes a 50% increase in the number of days each year when ozone levels are considered unsafe by EPA standards. 

8. Acacia Trees Communicate Danger

Most of us know acacia wood from furniture or decorative wood items. It’s even used as a food additive sometimes. But there’s more going on inside acacia trees than you might think at first glance. 

German forester Peter Wohlleben has proposed a controversial idea in 2015: trees can talk. As we mentioned with the vampire tree, there is evidence that trees actually do function in groups, not as lone organisms. They share resources and are able to support each other. Tree roots connect with fungus underground and share signals between organisms. It’s theorized this includes things like warnings about insect attacks, for instance. Chemical signals from one tree to another can alert members of the greater colony. Nutrients are shared, which is how saplings, too small to reach the sunlight under the canopy of larger trees, are able to survive. But there’s much more.

If a giraffe starts eating the leaves of an acacia tree, the plant produces ethylene gas. This gas, when it reaches other acacia trees, causes them to start producing tannins in their leaves. Large quantities of tannins will make the giraffe sick. It could even kill it, so the giraffe is forced to stop eating. All because one tree was able to signal other trees. Even more bizarre is that giraffes know this. They graze with the wind, and walk ahead of the gas clouds because they have evolved to be aware that acacia trees do this. 

7. Fire Coral Fungus

There are thousands of species of mushrooms in the world and while some are edible and delicious, many are incredibly toxic. The symptoms can vary from mushroom to mushroom and often include things like vomiting, stomach pain, and diarrhea. Severely toxic mushrooms will cause organ failure and death. In that regard, fire coral fungus is like many of its mushroom cousins. But fire coral fungus can get much, much worse.

Most mushrooms need to be ingested to cause damage. Not so with fire coral. The mycotoxins it produces can be absorbed through the skin. And the damage it causes when eaten goes to a level far beyond most other mushrooms. Sure, there’s the unbearable pain and vomiting, but then there’s also hair loss, peeling of the flesh and even shrinking of the cerebellum. This can cause impaired movement, speech, and perception. If enough has been consumed, the victim can also expect to potentially suffer from necrosis and finally death as a result. 

Progression of symptoms is also a mixed bag. Some people showed no symptoms at all for weeks after eating the mushrooms before it hit them. 

6.  Shiinotomoshibitake Mushrooms Glow

Don’t feel out of the loop if you’ve never heard of Shiinotomoshibitake mushrooms, because almost no one has. If you head to Mt. Yokogura in Japan between May and July, you may get a chance to see them for yourself, though. They’re hard to spot during the day because they only grow a few centimeters in length. So if you really want to experience them, try hunting them down at night.

It turns out that the elusive Shiinotomoshibitake mushrooms emit light. At night they can glow a vibrant green color. They live on decaying tree trunks and will only glow during that certain time of year, so tracking them down isn’t all that easy, but it’s clearly worth the effort if you’re a fan of otherworldly vegetation.

5. Little White Mushrooms

It seems like something called a Little White mushroom has no business being dangerous and yet it’s been blamed for a massive number of deaths in China. If you include mold and yeast, there are over 50,000 kinds of mushrooms in the world and science has just not been able to study them all. That’s why the Little White mushroom is relatively unknown.

In the Yunnan province of China, there had been an ongoing mystery for 30 years. Every rainy season, people would die of cardiac arrest in numbers beyond what should be expected. The deaths were incredibly sudden, sometimes occurring right in the middle of a conversation. The government investigated for five years before they stumbled on an answer. 

Researchers looking into what they dubbed Yunnan Sudden Death Syndrome noted that many of the victims had the same mushrooms in their homes. After determining the mushroom was the likely cause, locals were warned to stop eating it. The number of mysterious deaths then dropped to none. 

Oddly enough, studies showed that, while the mushrooms were toxic, they were not toxic enough to kill. It’s believed something else, perhaps barium in the water, worked in conjunction with the mushrooms to kill. 

4. Toxic Black Walnut

Walnuts may not have the cache of an almond or a cashew, but they’re still fairly popular. And this despite the fact that walnuts want you and everything around you to die miserably.

If you’ve ever seen a walnut in the wild, you know that the nut itself comes off the tree encased in a green husk. The moment you begin to peel that husk to get the nut inside, an unpleasant smelling fluid emerges that turns brown fairly quickly. This is called juglone.

Inside the walnut, and the tree, juglone is called prejuglone. It’s clear and perfectly safe. But the moment it hits the air, it oxidizes and becomes toxic. The toxic juglone can kill both plants and animals. Very few animals can ingest it safely, and even plants that grew near a walnut tree will die as the roots of the tree leak the fluid, not to mention any leaves or nuts that fall from its branches.

Sensitivity to juglone varies, but it can be quite bad for some victims. Even contacting dust from walnut wood being cut near you can cause rashes and welts on the skin. Breathing it in can cause respiratory issues and eating it can cause symptoms similar to cyanide. 

3. Chernobyl Mushrooms

By now, everyone knows the basics of what happened at the Chernobyl nuclear power plant. There was an explosion in 1986 and it proved to be one of the worst disasters in human history. There remains a 1,000 square mile exclusion zone around the site. Many animals and plants returned to the area with no humans around, but their radiation levels remain high as a result. Among the wide variety of wildlife found in the area are a unique species of fungus.

What’s been called dark fungi has been known to grow in radioactive areas for some time. This mushroom, colored by melanin, doesn’t need the sun to provide energy. Instead, it seems to feed on the radiation, absorbing it and feeding on it in much the same way a green leafed plant would turn energy from the sun into energy to grow through photosynthesis. 

The melanin seems to shield the mushroom from the harmful effects of radiation and convert it to usable energy To test whether this was true, researchers bombarded fungus with gamma rays at 500 times the level they’d normally be exposed to. The fungus grew three times faster than normal as a result. 

2. Japanese Knotweed

If you’ve ever seen a plant growing out of a crack in the pavement, you may have paused to wonder how it accomplished that task. You might assume that the pavement cracked due to weather or shifting earth and the plant took advantage of the opening. But that isn’t how Japanese Knotweed works. This plant can grow almost anywhere and will break through cement and stone along the way.

Knotweed can live for up to 20 years in places with no light. It can sprout under paved roads and burst through and even grow in stone walls. It’s already causing about $212 million per year in damages and will probably only get worse in the future. 

The plant is native to volcanic areas in Japan. It evolved to survive being smothered by volcanic rock, able to continue to grow in the dark and trapped by stone. When you try to remove it, the plant actually becomes more aggressive, growing even faster as a result. The roots can grow up to 10 meters from the stem, making it nearly impossible to kill. 

1. The Piranha Plant

There aren’t a lot of famous plants in the world. Audrey II from Little Shop of Horrors qualifies. And maybe The Giving Tree. And if you’re a gamer, you surely know about the Piranha Plant from the Super Mario series of games. Turns out we have one of those in the real world, too. Or at least a visually similar cousin.

The plant reproduces by luring in insects that eat dung. They are attracted to the smell, go inside and get trapped. The flower then releases pollen and sets the bugs free, covered in pollen, to spread its spore around town.

Known as hydronora africana, this parasitic plant can look like the piranha plant or just an alien mouth if you catch it at the right phase of its life. According to scientific sources, the plant has an unpleasant odor. According to less scientific sources, it smells like poop. It also produces edible fruit, which is said to taste like a potato. 

The once routine act of dining out has presented a conundrum for hungry customers living in the Covid age. Has my server been vaccinated? What about the cooks? Did the busboy just sneeze?! 

Alternatively, we can eliminate human contact altogether by foraging fresh produce in the wild. However, one must be extremely careful — eating the wrong plants could result in a trip to the emergency room or even a date with the grim reaper. 

7. Belladonna

Its name means “beautiful woman” in Italian. However, don’t be fooled. This lady is a killer in disguise and commonly known by a more apt nickname: Deadly Nightshade. 

Belladonna is a highly toxic perennial herbaceous plant in the Solanaceae family, featuring bell-shaped purple flowers and shiny blackberries. The shrub is native to Europe, North Africa, and Western Asia and can be found in woodland areas and along paths and river banks.

The plant’s root is generally the most toxic part and contains tropane alkaloids, which cause paralysis in the body’s involuntary muscles, including the heart. Belladonna also has a celebrated history of usage as a medicine, cosmetic, and poison. 

For example, during the Renaissance, women used the juice of the berries in eye drops to dilate the pupils for the intended purpose of making the eyes appear more seductive. In ancient Rome, the extract was widely used as a poisonous elixir — and allegedly used by Roman empress Livia Drusilla to murder her husband, Augustus.

6. Elderberries

This seemingly innocuous tart fruit is loaded with vitamins and antioxidants and can be found in various products, including jams, wines, and health remedies. Hippocrates, “The Father of Medicine,” called the Elder tree his “medicine chest.” Nonetheless, consuming uncooked or unripe berries may leave you feeling much worse, causing severe diarrhea, seizures, and even death. 

The most common type of this deciduous shrub is the Black Elder (Sambucus nigra). Reaching up to 30 feet tall, the tree is native to Europe but is also widely grown in other regions of the world. 

In addition to producing the dark berries, the Elder yields clusters of small white or cream-colored flowers known as elderflowers. Unfortunately, the seeds, stems, leaves, and roots of the Black Elder contain potentially fatal levels of a cyanide-producing glycoside. In extreme cases, the poison prevents the cells in the body from using oxygen, causing the major organs of the victim to shut down. 

5. Giant Hogweed

History Channel’s hit reality TV show, Alone, features contestants surviving on their own in the wilderness for a shot at winning $500,000. Ostensibly, it’s a challenge of out-starving the competition while trying to avoid being eaten by even hungrier bears. During the filming of season eight, one of the cast members contracted food poisoning after ingesting cow parsnip, an edible but toxic plant if not properly cooked. The foliage is also easily mistaken for a much more dangerous plant: Giant hogweed.

Merely touching this weed (Heracleum mantegazzianum) can lead to phytophotodermatitis, a severe skin inflammation. The sap covering this herbaceous flowering plant contains toxic chemicals known as photosensitizing furanocoumarins, which react with light when in contact with human skin. Painful blistering typically occurs within 48 hours, and if sap gets into a person’s eye, the reaction can lead to blindness. 

The invasive species has become a serious concern throughout North America as it continues to spread in rural and urban areas. Contact with the plant’s watery sap should be avoided unless equipped with protective outerwear, goggles, and rubber gloves. 

4. Hemlock

Famously (though dubiously) chosen by Socrates as the means of his own execution, hemlock is common worldwide — often growing by the side of the road. Other names include devil’s flower, scabby hands, and break-your-mother’s-heart. Its taxonomic name derives from the Greek word konas, meaning “vertigo” or “whirl,” representing hemlock poisoning symptoms.

The compound that kills is coniine, which blocks the neuromuscular junction to cause suffocation. Survival requires a ventilator. According to legend, this innocuous-looking shrub—a member of the carrot family—only became toxic at Christ’s crucifixion, cursed via contact with his blood. Its appearance, however, was unchanged, and it’s often mistaken for lookalikes, such as wild carrot, parsley, and caraway.

The key to IDing is to crush and smell the leaves. If they smell like “mouse urine and off parsnips” (and you still feel like eating them), desist! Incidentally, the similar-smelling leaves of the hemlock tree, otherwise unrelated, are how it gets its name.

Another hemlock to watch out for is Conium maculatum, or hemlock water-dropwort. Common around streams, it has the carrot family leaves, an “acrid celery” smell, and bulbous, toxic roots known as dead man’s fingers. Uprooted by storms, it’s the latter that often kills dogs.

Both were used for execution — particularly in Sardinia. Its tightening effect on the muscles of the face, drawing them into a sinister grimace, is the origin of the phrase “sardonic (from Sardinian) smile.”

3. Yew

The yew tree has long been a symbol of death. The ancient Greeks associated it with Hades, the Furies, and Hecate, goddess of necromancy, witchcraft, and ghosts. For the ancient Druids, it symbolized immortality —which may be why it’s so common in English churchyards, many of which were built on pagan sites. An old legend has it that the tree imbibed gases (or will o’ the-wisps) from corpses underground to make poison.

As a symbol of everlasting life and numinous power, yew is the wood of choice for magic wands and royal staffs — like the rod of office in the Highlands. Ironically, though, even just handling it can be deadly… eventually. Medieval longbow-makers were allegedly poisoned this way.

Symptoms of yew poisoning include convulsions, difficulty breathing, and especially heart failure strong enough to kill a moose. When consumed, the poison takes effect so rapidly that animals so-killed are often found with the leaves half-chewed in their mouths. That it can wipe out whole herds may be another reason it’s common in graveyards: to keep it from hungry livestock (though usually, they know to avoid it).

So why do people still eat it? Yew berry tart is, says its maker, the plant-based equivalent of fugu. While the leaves, bark, wood, and seeds are toxic, the berries, surprisingly, are not. Actually, they’re pretty tasty—but they’re risky to use in the kitchen. Only the flesh or aril is edible; the seed inside has the highest concentration of the tree’s deadly taxine B.

(By the way, if you do ever find yourself feeling sick while grazing an English churchyard, atropine might take the edge off. Follow the yew with some deadly nightshade, and you might just feel well enough to dig your own grave.)

2. Wolf’s bane

Despite the name, wolf’s bane kills indiscriminately. It was supposedly used to poison arrows to kill wolves (hence the taxonomic name Aconitum, derived from the Greek word for “dart”). But the Anglo-Saxons just knew it as thung, like any other highly poisonous plant.

Eating wolf’s bane causes numbness in the mouth, nausea, vomiting, a weak pulse, difficulty breathing, and a sense of things crawling on the skin. The poison at work is aconitine. Made by Hecate from the hell-foam of Cerberus, it’s best kept out of the kitchen.

Even though easily mistaken for horseradish, it hardly needs the disguise. Asian communities wolf down the roots for their purported medical benefits. The president of Kyrgyzstan even recommended wolf’s bane as a cure for COVID-19—hospitalizing four of his voters.

Historically,  it was among the poisons most feared by the death-fearing Pope Clement VII. In 1524, he was approached by a surgeon with a general antidote to poison, which he tested with aconitine. After feeding two prisoners wolf’s bane-laced marzipan cakes, he gave one prisoner the remedy and it worked; the other he let die in agony. Deservedly, the paranoid pontiff was later killed off with death caps.

1. Death caps

Death cap mushrooms in Catalan oil was, said Voltaire, the dish that changed the future of Europe. In 1740, Emperor Charles IV—besieged by political intrigue, financial crisis, and (on this fateful day) the common cold—called for his comfort food of choice. Usually, it lacked the poison mushrooms, which had found their way in “accidentally.” He fell sick within hours and couldn’t be helped. The following month he was dead.

But the emperor was apparently special, since death caps tend to work faster. Symptoms like dizziness, chills, and nausea only appear once the liver is critically weakened, 8-12 hours after intake. By this point, it’s often too late. Although later symptoms like vomiting and diarrhea abate and people may start to feel better, the liver and kidneys both shut down within days. 

The toxin to blame is aminitin, of which there’s enough in half a cap to kill a human. Unfortunately, there’s also no known antidote. With its delayed but near-certain prognosis of death, it’s been used in assassinations for millennia. This was the fate of Emperor Claudius in 54 AD at the hands of his wife Agrippina, clearing the way for her son Nero to replace him.

There’s another reason it’s such a good weapon. According to many death cap victims, the mushroom itself is delicious. So not only would an emperor’s taster not die right away, they’d heartily recommend the dish.