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20) Water Hemlock (Cicuta spp.)

Water hemlock (Cicuta spp.) is a visually stunning plant that grows in wet, marshy regions throughout North America and Europe. The plant boasts white, umbrella-shaped flowers and delicate green leaves, making it an attractive sight to behold. However, looks can be deceiving, as water hemlock is one of the most toxic plants found in North America.

The roots and leaves of water hemlock contain cicutoxins, which are responsible for its poisonous nature. Ingesting even a small amount of this plant can lead to severe symptoms like vomiting, seizures, and death within just a few hours. This makes it essential to exercise caution around water hemlock, no matter how alluring its appearance may be.

It’s not just humans who need to be wary of water hemlock; livestock are also at risk of consuming the plant, mistaking it for other, safe vegetation. If you suspect that someone, including pets or livestock, may have ingested water hemlock, it’s crucial to seek immediate medical attention to avoid any potential fatalities.

19) Tomato Leaves

Tomatoes are a popular ingredient in many dishes worldwide, known for their vibrant red fruits. However, the leaves of the tomato plant can be toxic.

The toxins in tomato leaves can cause vomiting and diarrhea if ingested, so it’s best to avoid consuming them. Although it may be tempting to use them as a garnish or add them to salads, it’s important to be cautious.

The Strychnine Tree (Strychnos spp.) is a plant native to tropical regions of Africa, Asia, and South America. Its shiny black seeds contain a toxic substance called strychnine, making it a potentially lethal plant.

Strychnine is a potent poison that can cause vomiting, convulsions, and even death if ingested. It has been used as a pesticide throughout history, but it is also harmful to humans and animals.

Despite its toxic properties, the strychnine tree has been used for medicinal purposes in traditional medicine. The plant’s seeds have been used to treat snakebites and respiratory problems, among other ailments. However, it’s important to be cautious when using any plant medicinally, as incorrect dosage or preparation methods can be dangerous.

17) Laburnum (Laburnum spp.)

Laburnum (Laburnum spp.) is a captivating ornamental tree native to Europe, recognized for its striking yellow blossoms and delicate, elongated seeds that resemble necklaces. However, it’s essential to be aware that laburnum is a toxic plant that can be hazardous if ingested.

The entire laburnum tree is poisonous, with toxins that can cause symptoms such as vomiting, diarrhea, and tremors if consumed. The seeds are particularly dangerous since they can be easily confused with other, non-toxic seeds. In extreme cases, ingestion of laburnum can be fatal.

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16) Rosary Pea (Abrus precatorius)

The rosary pea (Abrus precatorius) is an attractive and exotic plant that originates from tropical regions of Asia and Africa. Its slim, lengthy vines and striking red seeds make it a popular choice for jewelry and decorations. However, the seeds of this plant are highly toxic and can cause vomiting, diarrhea, and convulsions if consumed. The small size of the seeds makes them easy to swallow, and they may be mistaken for harmless seeds.

15) Nutmeg

Nutmeg (Myristica fragrans) is a spice that is prized for its sweet, warm, and slightly pungent flavor, which is commonly used in baked goods, savory dishes, and drinks. However, consuming large amounts of nutmeg can be toxic due to its active ingredient called myristicin. Symptoms such as hallucinations, dizziness, and nausea can occur if consumed in large amounts. While a small amount of nutmeg is safe for consumption, it is best to use it in moderation to avoid potential harmful effects.

14) Manchineel (Hippomane mancinella)

The manchineel (Hippomane mancinella) is a deceptively dangerous tree that grows in the tropical regions of the Americas. This tree is recognized for its small green apples and shiny green leaves. However, beware, as the manchineel is one of the most poisonous plants in the world.

All parts of the manchineel tree contain toxins that can cause blistering, vomiting, and diarrhea if ingested. Moreover, the sap of the tree is highly toxic and can cause severe skin irritation and blistering if it comes into contact with the skin. In severe cases, consuming manchineel can be lethal.

13) Four O’clock Plant (Mirabilis spp.)

The four o’clock plant (Mirabilis spp.) is a visually appealing and exotic plant that is native to the tropical and subtropical regions of the Americas. It is distinguished by its bright and fragrant flowers that bloom in the late afternoon and evening, hence its name. Despite its attractive appearance, the four o’clock plant is actually a poisonous plant that can be dangerous if consumed.

All parts of the four o’clock plant contain toxins that can lead to symptoms such as vomiting, diarrhea, and tremors if ingested. The seeds, in particular, pose a high risk as they can be effortlessly confused with other harmless seeds. In severe cases, ingesting the four o’clock plant can even result in death.

12) Jatropha Curcas (Purge nut)

Jatropha curcas, also called the purge nut, is a beautiful and exotic plant native to tropical regions of the Americas. Its glossy green leaves and distinctive red-orange seeds make it an eye-catching plant. However, despite its charming appearance, Jatropha curcas is a poisonous plant that can be dangerous if ingested.

All parts of the Jatropha curcas plant contain toxins that can lead to symptoms like vomiting, diarrhea, and tremors if ingested. The seeds are particularly hazardous since they can be mistaken for other safe seeds. In severe cases, ingestion of Jatropha curcas can prove fatal.

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11) Hogplum (Spondias mombin)

 

Although it has a pleasing appearance, Hogplum (Spondias mombin) is a poisonous fruit tree that is indigenous to the Americas. Its glossy green leaves and bright orange or yellow fruit are admired by many. Nevertheless, the hogplum plant can be detrimental if consumed.

The unripe fruit and seeds of the hogplum tree contain poisons that can cause symptoms such as vomiting, diarrhea, and tremors if ingested. In some cases, consuming hogplum can lead to fatality.

10) Ginkgo nuts

The ginkgo tree (Ginkgo biloba), native to China, is renowned for its unique, fan-shaped leaves and its resilience to harsh conditions. Its nuts, with a rich and nutty taste, are frequently used in Chinese and Japanese cuisine. However, consuming ginkgo nuts in large amounts can be dangerous, as they contain toxins that can cause vomiting, diarrhea, and tremors. In severe cases, eating ginkgo nuts can even be deadly. So, it is advisable to consume these nuts in moderation.

9) Cashew Nut Shells

The cashew nut (Anacardium occidentale), native to Brazil, is known for its kidney-shaped form and sweet, slightly crunchy texture. Its outer covering, cashew nut shells, are often discarded or used as fuel, as the oil within them can irritate the skin and respiratory tract.

However, it’s important to note that cashew nut shells are poisonous if ingested. The oil within the shells contains toxins that can cause vomiting, diarrhea, and tremors if consumed. In severe cases, ingestion of cashew nut shells can be fatal, so it’s best to avoid eating them altogether.

8) Elderberries (Sambucus spp.)

Elderberries (Sambucus spp.) are a type of berry that grows in the temperate regions of the Northern Hemisphere. These berries are known for their sweet and slightly tart flavor, which is used in various culinary preparations such as jams, syrups, and pies.

However, caution must be taken when consuming elderberries as they are only safe to eat when cooked. The raw berries, along with other parts of the elderberry plant, such as the leaves and stems, contain toxins that can cause symptoms such as nausea, vomiting, and diarrhea if ingested. In rare cases, consuming raw elderberries can also trigger a severe allergic reaction.

7) Chinese Lantern Plant (Physalis alkekengi)

The Chinese lantern plant, also called Physalis alkekengi, is an exotic and vibrant plant native to Europe and Asia. It is recognizable for its fruit that is enclosed in bright orange papery lanterns, and its white flowers. However, despite its striking beauty, the Chinese lantern plant is highly toxic if ingested.

All parts of the Chinese lantern plant contain toxins that can cause symptoms such as vomiting, diarrhea, and tremors if consumed. The seeds are especially harmful, as they can be easily confused with other edible seeds. In severe cases, consuming the Chinese lantern plant can lead to fatality.

6) Chaya (Cnidoscolus chayamansa)

Chaya (Cnidoscolus chayamansa) is a tropical plant indigenous to Central and South America, known for its abundant, glossy foliage and its sturdy, woody stem, which is often used as a traditional remedy for various illnesses. However, chaya is a toxic plant that can cause harm if consumed.

All sections of the chaya plant contain toxins that can produce symptoms such as vomiting, diarrhea, and tremors if ingested. The toxins in chaya are especially hazardous since they are not eliminated by cooking or boiling, and require cautious elimination before the plant is safe for consumption.

5) Cerbera Odollam (Suicide tree)

The suicide tree, or Cerbera odollam, is a tropical plant that originates from India and Southeast Asia. This plant is recognized for its glossy, large leaves and small, yellowish fruit. However, it is important to note that cerbera odollam is a poisonous plant, despite its unassuming appearance.

All parts of the cerbera odollam plant contain toxins that can lead to symptoms such as vomiting, diarrhea, and tremors if ingested. In high doses, the toxins in cerbera odollam can even cause fatalities.

4) African Breadfruit (Treculia Africana)

African breadfruit (Treculia Africana) is a tropical fruit that grows in West and Central Africa, recognized for its large, round shape and its tender, starchy pulp. Its slightly sweet and nutty taste makes it a preferred ingredient in West and Central African cooking.

However, caution should be taken as the unripe fruit and seeds of the African breadfruit tree are poisonous, and ingestion can lead to symptoms such as vomiting, diarrhea, and tremors. In severe cases, the consumption of unripe African breadfruit can be deadly. It is safe to consume only when fully ripe and thoroughly cooked.

3)Apple Seeds

Apple seeds are the small, hard seeds found inside apples, a fruit that originated in Central Asia and is recognized for its sweet, juicy flavor and crispy texture. Although not very tasty, apple seeds are generally removed or spit out when consuming an apple.

However, it’s important to note that apple seeds contain a toxic compound known as amygdalin. When amygdalin comes into contact with digestive enzymes, it can release cyanide, which can be dangerous if consumed in large amounts. Therefore, it’s recommended to avoid ingesting large quantities of apple seeds.

2) Akee (Blighia sapida)

Akee (Blighia sapida) is a tropical fruit that originated in West Africa and is characterized by its unique, pear-shaped appearance and its soft, creamy flesh. The nutty-flavoured fruit is commonly used in cooking, particularly in West African and Caribbean dishes.

However, caution should be exercised when consuming akee as the unripe fruit and seeds contain toxins that can cause severe symptoms such as vomiting, diarrhea, and tremors. In some cases, ingesting unripe akee can even be fatal. Therefore, it is important to ensure that akee is fully ripe and properly prepared before consuming.

1) Gympie-gympie (Dendrocnide spp.)

Gympie-gympie (Dendrocnide spp.) is a tropical plant native to Australia, which is recognized by its large, shiny leaves and small, discreet flowers. Despite its unremarkable appearance, gympie-gympie is a hazardous plant that can cause harm upon contact.

The leaves and stem of the gympie-gympie plant contain toxins that can produce excruciating pain and skin irritation upon contact. In extreme cases, exposure to gympie-gympie can even result in death.