More Poisonous Plants and Flora in the United States – Part II

Last week we discussed some well-known plants and shrubberies that are surprisingly very poisonous, and in some cases, deadly. This week, we will reveal even more plants, flowers, trees, and vegetation that are also toxic and potentially fatal. Be aware that plants, trees, and flowers may seem harmless but render serious health risks. Always be on your toes when experimenting with a foreign or unknown plant, and do ample research about its qualities, best practices, and more. Continue reading to expand your knowledge on some more poisonous and toxic vegetation in our country.

In Your Garden

A popular flower called the Iris is not a good candidate for consumption. If the underground stems and roots are
eaten, it will cause severe digestive pains and complications. Although not serious or fatal, it is very unpleasant experience that should be avoided at all costs. Another common garden plant that can cause health impediments is called Lily of the Valley. This quaint little white bouquet of flowers are stunning, but the leaves and flowers are poisonous. It causes irregular pulse, mental confusion, and digestive distress. These symptoms can last a few hours or a few days, depending on the amount consumed. Additional garden-variety toxic plants and flowers include Foxgloves, Larkspur, Bleeding Hearts, Monkshoods, and Castor beans. Many of these are fatal so avoid adding them to your lunchtime garden salad.

Here is a list of more Toxic Vegetation to Look Out For:

Daphne – The berries are so extremely toxic that only a few can kill a child. These are fatal to both humans and pets, so beware!

Azaleas – All parts of this plant are fatal. Consumption can result in severe vomiting, nausea, breathing complications, prostration, depression, and then death. All of this applies to Rhododendron and Laurels as well.

Jasmine – The scent is relaxing and pleasurable, but the consequences of consuming the berries of Jasmine can result in death. Digestive complications and nervous system failure are common initial symptoms before death occurs.

Red Sage – Also called Lantana Camara, is another fatal plant. If its green berries are eaten, the heart, lungs, kidneys, and other vital organs and systems begin to fail. This results in death.

Buttercups – A popular childhood favorite with a sweet treat at just the right time of year, Buttercups are not fatal, but their juices can cause damage to the digestive system.

Nightshade – This common field plant is fatal if consumed. All parts of the Nightshade plant, including the un-ripened berries, can cause intense digestive irritation, nervous system complications, and eventual death.

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Well-Known Shrubberies and Flora that are Surprisingly Poisonous

Vegetation is one of the most vital resources on our planet because without it, life could not possibly thrive. Animals, humans, insects, and even other plant life rely on vegetation for nutrition and sustenance. As for humans, we eat an abundant amount of vegetation in our diet. From herbal teas to salads, vegetables, fruits, and more, we eat a variety of naturally-occurring plant life. It has taken several centuries for society to learn which shrubberies are safe and which plants contain toxicity levels that are harmful to our health. In fact, we are still taking chances and learning about newly-discovered plant life and vegetation all over the world.

It is important to be aware that there are many poisonous and even fatal vegetation in our country that should never be ingested under any circumstances. Ingesting these kinds of plants can result in extreme pain and suffering, and even death. Some symptoms are treatable while others have no remedy. Continue reading to review a list of common poisonous plant life and the consequences they render humans and other animals.

Poisonous Plant Life

Although a plant may seem beautiful and innocuous, it can potentially be fatal or extremely dangerous. Perhaps a plant you’ve had growing in your gardens all along is a highly toxic shrub. Below is a list of the most toxic and poisonous vegetation in America:


This beautiful flower is actually very toxic, but not all parts. The leaves and branches contain a poisonous agent that can cause heart complications, digestive upset, and even death.


Although we often eat rhubarb in stews, pies, and more, certain parts are actually very toxic. The leaf blades contain a highly toxic agent that, if eaten in large amounts, can be fatal. It’s symptoms include convulsions, coma, and sudden death.

Wild and Cultivated Cherries

Cherries are delicious, but the twigs and stems contain a compound that releases cyanide. This causes death, but not before severe gasping, excitement, and prostration.

Oak Trees

Beautiful mighty oaks are incredible pieces of nature’s puzzle. But if the foliage or acorns are consumed in large amounts, major health complications arise. Gradually the kidneys are affected, but it can take several days or even weeks for symptoms to show.

Water Hemlock

These are found in swampy areas and marshes, and are fatal if any parts are consumed. Consumption will result in painful and violent seizures, followed by sudden death.


Our beloved flora that insists we give a kiss can give the kiss of death right back. If the berries of a mistletoe plant are consumed, death can occur. Children and pets are common victims of this unfortunate circumstance.

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