Presentation on the topic of plants harmful to humans. Presentation "dangerous plants of summer". It is both a medicinal and a poisonous plant.
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Flowers have always been one of the symbols of love. If someone is sick, they give him flowers. If someone courts a woman, he presents her with a bouquet of flowers. If you are trying to apologize for something, you send flowers as a plea for forgiveness. When someone dies, flowers are presented to the deceased. Flowers are an integral part of various rituals in almost all cultures. It is important to know what flowers can be given and in what situations. The flowers listed below should not be touched at all. Learn more about very beautiful but poisonous flowers.
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Aconite This plant is sometimes also called wrestler, devil's helmet or blue rocket. The beautifully flowering plant belongs to the buttercup family and is most commonly found in the Northern Hemisphere. How dangerous is this flower? Arrowheads were made from some types of flowers of the genus wrestlers. They were used by many cultures for hunting and during wars. If the poison of this flower enters the stomach, it causes nausea, diarrhea, and vomiting. This may be followed by burning, tingling, numbness of the face, mouth and abdomen. At high doses, death occurs instantly.
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Belladonna This flower has many other names, it is called Krasuha, Sleepy Madness, or Mad Berry, and jokes are bad with it. The plant belongs to the nightshade family, grows in Europe, North America and Western Asia. All parts of the plant are toxic. If you eat a flower, you will be in great danger. Children are often attracted to their berries because they are edible and even taste sweet. In case of poisoning, the following symptoms can be observed: dilated pupils, blurred vision, imbalance, headache, itching, facial flushing, slurred speech, confusion, hallucinations, delirium, convulsions. Death can occur if the reflex functions of the body, such as breathing and sweating, are disturbed, and help is not provided in time.
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Hemlock This poisonous flower belongs to the Umbelliferae family and mainly grows in Europe and southern Africa. One species, the spotted hemlock (Conium maculatum), is extremely poisonous. The plant contains a large amount of alkaloids, which can cause death in both humans and livestock. One of the alkaloids, horseine, is very similar to nicotine. It interferes with the functioning of the central nervous system. Horsemeat poisoning can cause the following symptoms: muscle paralysis leading to paralysis of the respiratory system. As a result, the heart and brain stop receiving enough oxygen, which leads to death.
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Oleander This is a very beautiful flowering plant - extremely poisonous, although it is widely used in landscaping and even planted in school yards. All parts of the plant are toxic. The plant is said to be native to Portugal, Morocco and Mauritania. The toxicity of the flower is quite high, so if you hear about drugs based on oleander, this may raise suspicions. The symptoms of oleander poisoning are as follows: vomiting, diarrhea, excessive salivation, abdominal pain, palpitations, drowsiness, trembling, convulsions, and coma.
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Datura There are nine representatives of the Datura genus, the distribution of which in nature is unknown. Most of these plants can be found in the USA and Mexico. All nine species contain alkaloids that can cause death. For a long time, the plant was used to produce poison and as a hallucinogen. In Europe and India, cases of murder and suicide with the help of the poison of this flower are known. Today, in some countries, buying, selling, and cultivating Datura is considered illegal.
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Digitalis In nature, about 20 species of digitalis are known, another name for this flower is foxglove. Despite the beautiful flowers, the plant is deadly poisonous. All parts of it are toxic, but the topmost leaves contain the most poison. When poisoned with this plant, symptoms such as nausea, vomiting, diarrhea, hallucinations, delirium, severe headaches, tremors, convulsions and heart failure can occur.
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May lily of the valley One of the most beautiful forest flowers - lily of the valley - is actually not as harmless as it seems. It grows normally in the cooler regions of the Northern Hemisphere, and some varieties are used as garden flowers. Despite the fact that the medicinal properties of lilies of the valley are known, this flower is very toxic. It is believed that it can strengthen memory and even give someone common sense. The truth is that all parts of this flower are poisonous, it has a large supply of glycosides that can disrupt the heart.
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Opium poppy The drug heroin is obtained from this plant - a beautiful red poppy. The plant contains a substance such as morphine, which is processed into heroin. Poppy has been cultivated and used for thousands of years. The drug that is obtained from it can lead to a slow death, and the latex of the plant itself can cause cardiac arrest and lung failure. Also, the narcotic substance can lead to coma. Unfortunately, in some parts of the world, poppy is used to "cure" insomnia or diarrhea.
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Brugmansia This genus of plants includes 10 species of flowers and is most often found in the Andes of South America. It is associated with Datura, as they are similar in flower shape, and is often referred to as Angel's Trumpet. If the poison of the flower enters the body, it causes painful symptoms in both humans and animals. Among them is the expansion of the pupils. Due to toxicity, some countries prohibit buying, selling and cultivating Brugmansia.
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Lakonos And the last one on our list - lakonos - a beautiful, but rather poisonous flower. The flowers of this plant are the only part of it that is considered poisonous and can cause a lot of harm. If the flower is swallowed, the victim will experience nausea and vomiting. Then there may be symptoms such as heavy sweating, spasms, extreme weakness, trembling, diarrhea, hematemesis, and convulsions. With severe poisoning - slow breathing, dizziness, convulsive seizures, coma and death.
Perennial herbaceous plant. Beautiful flowers have attracted attention since ancient times with their valuable medicinal properties. In September, red-orange, like peas, berries appear on the arrow instead of flowers. At this time, lily of the valley berries are eaten in large quantities by some predators to expel intestinal parasites. The entire lily of the valley plant and berries are highly poisonous.
These are tall herbs with whole leaves bearing large teeth along the edges. The flowers are large, funnel folded corolla white. The box is studded with thorns. It grows mainly in damp places. The whole plant is highly poisonous, especially the seeds. It has a pronounced unpleasant odor.
Belladonna is a perennial nightshade plant. Grows up to two meters in height. Toxic substances in belladonna are found not only in black or yellow berries, but also in its stem, leaves and flowers. What makes belladonna dangerous is the fact that it grows throughout the summer and until late autumn. Belladonna berries have a sweet enough taste that attracts children. And purple flowers resemble bells. With belladonna poisoning, a feeling of dryness in the mouth appears, which makes it difficult to speak and swallow, the heart begins to pound, and flies flash before the eyes.
All parts of the plant are poisonous. In folk medicine, henbane is used as an analgesic for inflammation, sprains, joint pain, etc. Seed ointment is used externally for tuberculosis of the bones. An infusion of henbane is used for boils at the beginning of their appearance, and rubbed with ointment for colds, coughs, pleurisy.
Elderberry leaves, flowers, immature fruits are poisonous. The main symptoms of poisoning are dizziness, headache, weakness, sore throat, abdominal pain, nausea, and vomiting. Preparations from the flowers of black elderberry have a diaphoretic, diuretic, anti-inflammatory, disinfectant effect. They are used in the form of infusions, vapors, decoctions; for colds, flu, diseases of the upper respiratory tract, kidneys and bladder, for rinsing the mouth.
All parts of the milestone, when rubbed between the fingers, emit a specific unpleasant odor. The plant is poisonous in any form. Especially poisonous is the sweet stem and sweetish, with a pleasant smell (reminiscent of the smell of dried apples) rhizome. The rhizome of the milestone is mistaken for a turnip. If you eat it, then in minutes there is malaise, salivation, vomiting, abdominal pain, diarrhea, and then convulsive seizures, against which respiratory and cardiac arrest is possible. Milestone grows in damp, swampy places. The outward resemblance to carrots and the pronounced carrot smell of the underground part led to tragic poisoning of children.
The plant is very poisonous. The juice of the plant irritates the human skin, up to the formation of blisters. And even a small amount of berry pulp is enough to cause severe upset in the gastrointestinal tract. Don't be fooled by the fact that the berries are eaten by birds. For birds, unlike other warm-blooded, the crow is not dangerous.
A few minutes after entering the body, vomiting begins, prolonged and indomitable. With hemlock - vomiting is rare and short. salivation, colic in the abdomen. Then there is dizziness, unsteady gait, foam at the mouth. The pupils are dilated, convulsions are replaced by paralysis and death. Half an hour later - burning sensation in the mouth, salivation, redness of the skin, nausea, vomiting, dilated pupils and, later, cyanosis of the skin. Muscle spasms and convulsions with respiratory failure, then loss of consciousness and death, often within 1..2 hours after poisoning.
Contains the deadly poison oleanine. All operations, whether pruning, cuttings or transplanting, should be carried out with gloves very carefully - the plant is very poisonous, especially the milky juice and seeds. At the end of work, be sure to wash your hands with soap and water. Keep children away from the plant!
A poisonous plant, it contains cardiac glycosides, it is they that give a toxic effect in large doses. But even the famous Paracelsus said that “everything in nature is poison, nothing is devoid of poison, but the matter is only in doses”. Even snake venom in microdoses is considered a therapeutic agent, at the same time, ordinary table salt in large doses leads to serious disturbances in the body's vital functions. It's only a matter of doses
Help with poisoning by poisonous plants Rinse the stomach - let the patient drink 5-6 glasses of water or milk in a row. Then, irritating the root of the tongue or the back of the throat with a finger or a teaspoon, induce vomiting, this procedure can be repeated 3-5 times. Put the patient to bed. Apply warm heating pads to hands and feet. Continuously give him a warm drink, and with a sharp weakness - strong tea. If there is no liquid stool, only in the first hours after poisoning, the patient can be given a mild laxative (one tablespoon of vaseline or castor oil). For people prone to hypotension, give a laxative in small doses to avoid a sharp drop in blood pressure due to a large loss of body fluid. Call a doctor.
Materials UTF-8&tbm=isch&source=og&sa=N&tab=wi&biw=1024&bih=578 And other Internet sites. The presentation was published on the website - viki.rdf.ru Y. Gagarin, Talgar Semyonova Elena Vasilievna
CAREFULLY!
Poisonous plants!
FREQUENTLY IN THE NEWSPAPERS THERE ARE REPORTS ABOUT THE POISONING OF CHILDREN AND ADULTS WITH HERBS OR BERRIES, AND SOMETIMES IT ENDS VERY SADLY …
Out of 30,000 plants,
found in our country
about 1000 are poisonous.
WOLF BATT
This is the most popular poisonous plant, and it can be found everywhere. You can get poisoned by its bright red berries or the bark of branches that are cut off for the sake of beautiful, reminiscent of lilac flowers. When the juice of the plant gets on the skin, pain, redness, swelling, then blisters and ulcers appear. In case of poisoning with berries - burning in the mouth and throat, difficulty swallowing, salivation, stomach pain, diarrhea, vomiting, in severe cases - cardiac arrest.
Nightshade SWEET - BITTER
From mid-summer to September, berries hang on bittersweet and black nightshade plants. First they are green, then red and black. Children most often suffer by eating unripe berries. Symptoms of nightshade poisoning: abdominal pain, nausea, vomiting, inhibition of motor and mental activity.
belladonna
THESE POISONOUS PLANTS ALSO BELONG TO THE NIGHTHOUSE FAMILY. THEY CONTAIN THE SUBSTANCES ATROPINE AND SCOPOLAMINE. AFTER TRYING YOUNG SWEET SPRINGS, SEEDS OR tasting APPETITE BERRIES, A PERSON FEELING DRY MOUTH, SPEECH AND SWALLOWING DISORDERS. HIS PUPILS DIFFERENT AND VISION IS DISTURBED, HEART RATES, DELUSION AND HALLUCINATIONS ARE POSSIBLE, IN SEVERE CASES - LOSS OF CONSCIOUSNESS .
MILESTONE POISONOUS
In swampy places in many places you can find this tall umbrella plant with the smell of parsley. All parts are poisonous. Almost immediately after the poison enters the human body, headache, vomiting, and abdominal pain begin.
BLACK ELDER
It is both a medicinal and a poisonous plant.
Unripe elderberry fruits are dangerous, which contain hydrocyanic acid and are deadly poisonous when raw in large doses.
thermopsis
Acacia yellow
castor bean
Just one seed eaten by a child is fatal.
And for an adult, the lethal dose is
8 - 10 seeds.
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Purpose: to introduce children to dangerous summer plants and warn them about the consequences of contact with these plants. Tasks: collect information about poisonous plants; using various sources, determine the degree of danger of plants and first aid measures.
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Poisonous plants are plants that produce and accumulate poisons in the process of life, causing poisoning of animals and humans. More than 10 thousand species of such plants are known in the world flora. Many plant poisons in small doses are valuable remedies. Poisonous plants - even if unwitting "offenders" are better known by sight. Let's look at the most common and most dangerous poisonous plants that grow in our summer cottages, along roads and in the forest, along the banks of reservoirs.
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nightshade sweet - bitter cow parsnip ordinary milestone poisonous castor bean wrestler, he is aconite dope raven eye black henbane Attention! They need to know in person
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Furanocoumarins in the juice of the plant "attract" ultraviolet light. Children cut the stems to make pipes, touch the milky juice and get severe burns. A drop of juice on the skin leads to a second degree sunburn on the skin (blisters), a respiratory allergen. Rinse skin with plenty of water. Hogweed (Heracleym sphondylium) A perennial plant with a powerful hollow, ribbed stem growing up to 150 cm. The stem is covered with hard hairs, the branches are in its upper part, the leaves are large. Blooms in June-July. White flowers are collected in a large umbrella. The fruits of hogweed (dvuzernovka) appear in August. It grows in fields, wastelands, along the banks of reservoirs.
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Nightshade sweet-bitter Perennial shrub up to 180 cm in height. The berries are red, elongated; children often confuse them with barberries. Lots of toxic compounds. Psychomotor agitation, hallucinations, delirium, tachycardia, headache, dizziness, dilated pupils, dry mouth. Urgently call an ambulance, before that, rinse the stomach, give any enterosorbent. (Solanum dulcamara)
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Veh poisonous, he is a hemlock (Cicuta virosa) Grows along the banks of stagnant reservoirs, in damp places, sometimes in the water itself. Blooms in July - August. The flowers are small, white, collected in a complex umbrella. The leaves are pinnate, doubly - triply dissected, the stems are branched, hollow. The fruits are round, the rhizome is thick, divided by transverse partitions into separate chambers filled with yellow juice - in small doses it is deadly. Poisonous substances are found in all parts, especially in the rhizome and young shoots. Neurotoxin. Abdominal pain, headache, dizziness, weakness, nausea, vomiting, shortness of breath, pale skin, convulsions. Urgently call an ambulance, before that, rinse the stomach, give any entero-obent.
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In the seeds, a dangerous alkaloid is ricin. Signs of poisoning occur after 15 hours, sometimes after 3 days. Retinal hemorrhage, nausea, vomiting, abdominal pain, convulsions. Urgently deliver to a medical facility. Castor bean (Ricinus communis) Plant up to 2-3 meters high. The stems are straight, the leaves are palmately divided, the flowers are not decorative. Grown in gardens, flower beds. Poisonous seeds. The alkaloid ricin has been called "one of the most potent toxins known." This substance, derived from castor beans (the fruit of the castor bean), is many times more toxic than potassium cyanide, sarin gas, and cobra venom. The cells of the lungs, liver, kidneys are affected.
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Even the dried plant contains poison - aconitine. Skin itching, breathing quickens, then slows down, body temperature decreases, pain in the heart, convulsions, paralysis of the respiratory muscles, death. Urgently deliver to a medical facility. If not breathing, administer artificial mouth-to-mouth ventilation. Wrestler, also known as aconite (Aconitum) Perennial herbaceous plant with an erect stem, deep palmate leaves, blue or purple flowers. Grows in damp places along river banks and roadsides, on humus-rich soils, in mountain meadows. The whole plant is poisonous.
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The stem of the plant is 15-40 cm tall. Blooms in May - July; bears fruit in July - August. It grows in forests, among shrubs, in shady places. All parts of the plant are poisonous, especially the rhizome and berry. The rhizome causes vomiting, and the berries act on the heart. Weed plant with an unpleasant odor, stem height 30-100 cm. Blossoms in June - August; seeds ripen in July - September. It is found near housing, along roads, in fields, gardens. All parts of the plant are poisonous (especially the seeds!). Poisoning causes dry mouth, skin rash, thirst, nausea and vomiting, cardiovascular disorders, mental disorder, convulsions. Symptoms of poisoning develop in the time interval from 10 minutes to 15 hours.
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Conclusion: Children are most often poisoned by poisonous plants. This also happens because they do not know which plants are poisonous. Poisonous plants should not be taken in the mouth, some even in the hands, you should not touch the eyes. Some poisons are found in plant sap, which is able to dissolve the fat that covers the surface of the skin; absorbed into the skin and getting into the blood, such juice causes poisoning. Be careful in the nature around you! We wish you good health!
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Sources of information: http://remeslennic.ru/2012/10/ru.wikipedia.org›wiki/Borets vitusltd.ru›cvet_kleshevina.html prime-flowers.ru›yadovitye-rasteniya.html 2mm.ru›Child health›Dangerous neighbours
Presentation on the topic "Plants are beautiful but dangerous"
Presentation prepared
3rd grade student
Kiorsak Fedor
Ordinary plants can be poisonous. Most people are unaware that a beautiful, innocent-looking plant in their garden, house, window box, or field can be dangerous. At the very least, it can cause serious illness in children if they swallow or chew it. Children are often victims of poisonous plant poisoning. Pets also suffer from eating them.
dieffenbachia
You may find several poisonous plants, including dieffenbachia, while exploring your own home. Its stem contains needle-like crystals that, when ingested, can damage the lining of the mouth and tongue and cause swelling that blocks breathing.
Rhubarb
Garden plants bring a lot of problems to young children. The most dangerous rhubarb. Its stem, used as food, is not toxic, but its leaf contains oxalic acid, which is collected in the kidneys and can cause serious problems if enough is eaten.
Hydrangea
Hydrangea is one of the most common garden plants. An adult specimen sometimes reaches five meters in height. Hydrangea blooms with greenish-white, pink or blue flowers, reminiscent of cotton candy, which you want to try. However, these flowers are not at all as innocent as they seem at first glance. Prolonged contact with them causes stomach pain, itching, nausea, and weakness. 
Colchicum
Colchicum- a very beautiful plant. It usually grows on forest edges. In autumn, when its flowers appear, a solid pink carpet, the meadows make a fabulous impression. Colchicum contains an alkaloid. In spring, the plant is sometimes eaten by cows. Its poison is excreted in milk, which can be the cause of poisoning people, especially children. 
Buttercup ordinary
Beware of field plants such as buttercup (its leaves are poisonous to cattle), its poison is extremely dangerous for most people, causing skin rashes (leaves, stems and even smoke from burning),
Common tansy
It grows along roadsides, near dwellings, in gardens, in sparse forests. The flowers are yellow, collected in small baskets resembling buttons or rowan berries. The leaves are arranged so that their edges are directed from north to south. The name "Wild Rowan" tansy received for the similarity of its leaves and flowers with the leaves and berries of mountain ash. Essential oil is extracted from tansy. The roots of plants give a green color. The plant is poisonous! 
Lily of the valley
Lily of the valley. This delicate plant, delighting our eyes in May, is poisonous from the roots to the tips of its fragile white bell flowers. Over time, even the water in which the bouquet stood becomes poisonous. If you eat a lily of the valley, there will be many dangerous symptoms: convulsions, uneven heartbeat, indigestion, pain in the mouth and stomach, nausea. Even prolonged inhalation of the aroma of this plant causes poisoning.
Chrysanthemum
Chrysanthemum is sung by almost all Japanese poets. In England, these yellow and orange flowers are given in small pots for Thanksgiving and Halloween. Chrysanthemums grow slowly, but over time they can grow into huge bushes that are bypassed by both wild and domestic animals. And do you know why? Chrysanthemum for animals is very toxic. Chrysanthemum poison does not affect humans so much, but pollen can cause itching, redness and swelling of the skin. 
ficus
Ficus is sometimes called the weeping fig tree. There are over 800 types of ficuses. Most of them grow at home in pots, but in warm latitudes, ficuses are grown simply in the yard. The size of an adult plant, depending on the variety, ranges from 1 to 23 meters. Regardless of the variety, any Ficus is toxic. It causes allergic skin reactions, swelling and itching.
Narcissus
These light white and bright yellow harbingers of spring are partially poisonous - plant poison is concentrated in the bulbs. Sometimes people (more often children) confuse them with onions. Eating narcissus bulbs causes cramps, nausea, and digestive disorders. In severe poisoning, you may need a dropper and bed rest.
