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From innocent looking Mayflowers, to the properly named deadly nightshade, these are 15 Poisonous Plants that can be found in your backyard. #7 … Stinging Tree -- The deadliest stinging nettle in the world, this plant is found in forests from Australia to Indonesia. If you even brush against any part of this plant, you can receive a potent toxin that produces a painful sting that could last from days to months. Hopefully this guy didn’t get too close, as seen in Brian Cassey’s photo. While a serious sting from this plant will produce a severe allergic reaction in animals like dogs and horses, there’s not much evidence that it has ever killed humans. #6 … Strychnine (strick-nine) Tree -- This picture from zidbits.com shows this medium sized tree that is native to Southeast Asia and India, and is also known as poison nut or Quaker Button. The tree bears a greenish-orange fruit that has seeds packed with the poisonous alkaloids Strychnine and Brucine. 1 ounce (30ml) of these toxins can cause violent convulsions leading to a painful death. #5 … Angel’s Trumpets -- Named for their distinctive, trumpet-like shape, these pendulous flowers grow in a variety of colors, including white, pink, orange and yellow, measuring over 19 inches long (50cm). You can see a good example of this in the picture from portlandnursery.com. But all parts of this plant contain high levels of scopolamine (sko-pole-ah-meen) and atropine (at-tro-peen), which can cause paralysis of the heart. Interesting to note that Angel’s Trumpets have been turned into a tea and used as a recreational hallucinogen. However, toxicity levels can vary from plant to plant, even from part to part. That makes it difficult to know the exact levels of toxins ingested. Users have been known to overdose and die from this practice. #4 … Wolfsbane -- This photo from the Independent.co.uk shows off its this plant’s purple passion. It’s long been known for its toxic qualities, having been used to poison the tips of arrowheads for hunting and warfare. Wolfsbane carries Aconitum (o-con-on-nim) neurotoxins and cardiotoxins. Accidental ingestion can produce symptoms including motor weakness and heart and lung paralysis. In folklore Wolfsbane was used to repel werewolves … but in certain parts of Europe it was also used to ward off vampires … Must’ve sucked for those vampires #3 … The Manchineel (MAN-kun-eel) Tree -- Also called the Tree of Death (Arbol de Muerte), it’s found from southern Florida to the Caribbean and Central and South America. It’s known for producing a toxic white sap, or latex that produces a violent allergic reaction on the skin, if you so much as brush against it. And if you get caught in a rainstorm and happen to wander under this tree, the runoff sap will make your skin blister! It also produces a poisonous green fruit called the “Little Apple of Death” (Manzanita de la Muerte). Eating that will result in abdominal pain, bleeding and digestive tract damage. Basically the entire tree is lethal. No wonder Guinness gave it the title of “World’s Most Dangerous Tree” in 2011. Not even Charlie Brown’s infamous kite-eating tree was this mean! #2 … Deadly Nightshade -- This plant is also well-known as Belladonna. They’re are found in wooded areas of central and southern Eurasia, producing green leaves and shiny black berries that resemble cherries. The berries are so sweet that children, along with unwitting adults will eat the lethal plant. Like Angel’s Trumpets, Nightshade contains atropine (at-tro-peen) and scopolamine (sko-pole-ah-meen). 10 to 20 berries is enough to kill an adult. But it only takes one leaf to kill a grown man because the plant’s poisons are most concentrated in the leaves. Even simple physical contact with Nightshade could produce skin irritations. Did you know that tomatoes, eggplants and potatoes are all members of the Nightshade family? #1 … Castor Oil Plant -- Well, any plant that holds the current title of World’s Most Poisonous Plant from Guinness earns the number one spot. You can find the Castor Oil plant in homes and gardens around the globe. A highly toxic chemical called ricin (rih-sin) is found throughout the plant but is especially concentrated in the seeds. 4 to 8 beans would be a lethal dose for an adult human. If ingested, symptoms include intense abdominal pain, burning sensations in the mouth and throat, vomiting and bloody diarrhea, all within the first 36 hours. If left untreated, death can occur within 3 to 5 days. DId you know that castor oil is actually made from castor beans? Luckily, only the taste is toxic. Subscribe to Epic Wildlife http://goo.gl/6rzs5u Let's Connect -- http://www.epicadamwildlife.com/ -- http://www.facebook.com/epicadamwildlife -- http://www.twitter.com/epicwildlife -- http://gplus.to/epicwildlife