Guest Post: 8 Beautiful Flowers That Can Kill You

Our good friend Isabell Davila from flowerdelivery.net wrote this great post about dangerous flowers and allowed us to repost it here. Please check out her flower delivery website for more posts and some beautiful flowers.

Many things in nature are beautiful, yet deadly. When it comes to flowers, this can be particularly true, as some species are poisonous and even fatal to humans. Since gardening is a favorite hobby of millions worldwide, we should be very careful in choosing which flowers to beautify our surroundings, as there may be much more than meets the eye. Here are some alluring flowers that just so happen to be poisonous and can actually kill you.

  1. Aconitum Napellus (Wolf’s Bane)

    This common garden plant contains a deadly cardiac poison that was once used on the tips of spears and arrows for hunting during ancient times. Ingestion of even small amounts of aconitine, the primary toxin in the flower, results in severe gastrointestinal upset. However, what kills you is the effect it has on the heart, slowing it down until it eventually stops.

  2. Echium plantagineum (Purple Viper’s Bugloss)

    This vibrant purple flower is grown around the world and belongs to the Echium family. Unfortunately, the plants contain toxic pyrrolizidine alkaloids, which are poisonous even to large animals. One teaspoon of honey from the plant is above the recommended weekly minimum intake of these chemicals in humans and can be highly toxic in high quantities.

  3. Nerium oleander

    One of the most toxic plants in the world just so happens to have an elegant, sweet scent and appearance. Nearly every part of the plant and flower, from its stem to its sap, is extremely poisonous if ingested. The blossom is so dangerous that even the honey gathered by bees using oleander nectar is poisonous. The toxins from the Oleander flower causes an irregular heart rate in humans – causing our hearts to race, then drop to a dangerous level, until the heart stops beating altogether. Campers should be cautious when roasting food over an open fire, as there have been reports of inadvertent poisonings that result from inhaling the smoke from a burning Oleander.

  4. Castor Oil Plant

    Named the most poisonous plant in the world according to the Guinness Book of World Records, just one milligram of the plant’s poison can kill a healthy adult. Its flowering seeds contain alkaloid ricin, which is more toxic than common cyanides. What’s even scarier is that this toxin has the ability to accumulate in an organism until the lethal dose is reached. Symptoms first include nausea and vomiting, then bloody diarrhea, fever, seizures, and finally a collapse resulting in death. Its seed, which is the castor bean, is known to be lethal in adults, if consumed in quantities from four to eight seeds.

  5. Daphne mezereum

    Also called lady laurel or paradise plant, every part of this beautiful plant is poisonous. The pink or purple flowers bloom in early spring before it gains it woody deciduous appearance with bright red berries. The bark, sap, and berries hold the greatest toxic concentration, including Mexerine, an acrid resin resulting in intense skin irritations, and Daphnine, a bitter glycoside. Combined, these two toxins will cause convulsions, delirium, headaches, diarrhea, and other not-so-pleasant reactions. If you ingest a berry, you could fall into a deep coma and die.

  6. Latana camara

    Widely found in the summer landscape of the tropics, beautiful yellow, orange, and pink flowers often obscure its deathly properties found in its green berries. Triterpenes, the poison found in its berries, is a precursor to steroids, which may cause muscle weakness and lead to a circulatory collapse.

  7. Atropa belladonna (Deadly nightshade)

    Though the name of the species comes from Latin, meaning a “pretty woman,” its bell-shaped violet blossoms and cherry-like fruit make it an overall attractive plant. However, when ingested, it may cause delirium and hallucinations. Fatal amounts of 10 to 20 berries or a single leaf of the plant can be deadly. Your symptoms including blurred vision, rashes, and a fast or slowed pulse, all leading up to a fatal convulsion.

  8. Rhododendron (Azaleas)

    Almost anyone is familiar with an Azalea flower; it’s one of the most popular types of flowering shrubs in the entire world. However, the nectar produced by Azalea flowers contains a grayanotoxin, known as “mad honey,” which is lethal in humans but harmless to bees. As a rule of thumb, Azaleas are nice to look at, but it’s not a good idea to chew on an Azalea flower.

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