Presentation on medicinal and poisonous plants. poisonous plants

Encyclopedia of Plants 30.06.2020
Encyclopedia of Plants

Up to 200 seeds are formed on one inflorescence. Mass flowering in May, separately flowering plants are found until autumn. The fruits ripen in June - August. Often there is repeated flowering and fruiting throughout the summer. Propagated by seeds and vegetatively. The productivity of one plant ranges from 200 to 7000 seeds. Distributed throughout the CIS. It grows on fresh and moist sandy, loamy and clayey soils in meadows, glades, forest edges, clearings, along roadsides, in gardens and vegetable gardens, crops. Dandelion easily adapts to a wide variety of conditions, is resistant to trampling and eating by animals. The generic name comes from the Greek tarasso to soothe, after the use of the plant by the ancient Greeks. The specific definition is associated with the medicinal properties of the root. The Russian name “dandelion” was given to the plant because of the extraordinary ease with which, at the slightest breath of air, ripe achenes on fluffy flyers break away from the receptacle and scatter. The remaining bare receptacle resembles a bald head. Therefore, in the Middle Ages, a dandelion was called Caput monachi - a monastic head, and in Russia the names of a wasteland, a fur coat, a bald patch, a Jewish hat are associated with this. Already the doctors of ancient Greece used dandelion as a medicinal plant. Theophrastus recommended it for reducing freckles and icteric spots on the skin. In Germany in the 16th century, it was used as a sedative and hypnotic. In Russian folk medicine, dandelion has long been considered a “vital elixir” and is used for a variety of diseases.

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Medicinal plants - an extensive group of plants, organs or parts of which are raw materials for obtaining funds used in folk, medical or veterinary practice for therapeutic or prophylactic purposes. Medicinal plants are most widely represented in folk medicine. Calamus, lingonberry, elecampane, St. John's wort, cranberry, raspberry, coltsfoot, mint, sea buckthorn, plantain, chamomile, yarrow, dog rose and many others are widely used as medicinal plants at the beginning of the 21st century.

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Flowers, fruits. Juice - with neurosis of the esophagus, diseases of the skin, liver and biliary tract, functional disorders of the heart, angioedema, atrial fibrillation, dizziness, shortness of breath, insomnia.

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Dandelion is used to treat hepatitis, cholecystitis, cholelithiasis, jaundice, gastritis, colitis, cystitis, to improve appetite and digestion, with constipation, flatulence, and also as an antihelminthic.

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Coltsfoot is a valuable remedy for coughs, especially in whooping cough, and also for mucous sputum. Tea from it can facilitate coughing, make more liquid viscous bronchial mucus, and therefore bring real relief to patients with chronic bronchitis, pneumoconiosis and emphysema

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Since ancient times, yarrow has been known to people. According to legend, it was with this herb that Achilles, the hero of the Trojan War, healed the wounds of his comrades. In Russia, this herb has been held in high esteem since ancient times: the peasants stopped the blood with it when they were cut with a sickle or scythe, the soldiers moistened the wound with juice from the leaves or sprinkled it with crushed dry leaves.

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In scientific medicine, the leaves are used as a wound healing, anti-inflammatory, hemostatic, expectorant, hypnotic, analgesic, bactericidal and anti-allergic agent. A decoction of the leaves is used for bronchitis, tuberculosis, other diseases of the respiratory organs, diseases of the gastrointestinal tract, including gastric and duodenal ulcers, and inflammation of the kidneys.

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Marsh rosemary shoots are used in the form of an infusion as an expectorant, antitussive for bronchitis and other lung diseases. It is also used as a diuretic, disinfectant and antiseptic. Toxic.

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May lily of the valley herb is used as a cardiotonic and choleretic agent. The plant is poisonous.

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At the beginning of the 21st century, in medicine in many countries, shepherd's purse herb is used as a hemostatic agent for internal bleeding. There are experimental data on the diuretic and hypotensive effect of drugs from the shepherd's purse, on its possible use for the treatment of pulmonary tuberculosis.

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St. John's wort, as a medicinal plant, has been known for a long time. It is harvested during flowering, cutting off the stem at a height of 40 cm. The grass is dried in well-ventilated areas, spreading out in a thin layer. A decoction of St. John's wort is used as an astringent and antiseptic for intestinal catarrhs, for rinsing with inflammatory diseases of the mucous membrane of the mouth and throat, for lubricating the gums with stomatitis.

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Chamomile in the form of infusions is prescribed for inflammatory diseases of the gastrointestinal tract, stomach cramps, neuroses, colds. Outwardly - for poultices, rinses, lotions, washings with inflammation of the gums, with bruises, wounds, ulcers, abscesses.

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Collected on time. The collection of the aerial part is carried out in dry weather, before the appearance of dew. Plants that are heavily dusty or polluted should not be collected. Plants damaged by pests are not recommended to be collected.

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Poisonous plants are plants containing substances that, when ingested by humans or animals, cause poisoning. It can lead to serious illness and even death. For the plant itself, these substances have a protective value, saving it from being eaten by animals. About 10 thousand species of poisonous plants are known. About 1 thousand species are found in our country. Fresh poisonous plants are the most dangerous, since during processing their toxicity can decrease and even be completely lost.

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Wolf's bast The whole plant is poisonous, but bright red berries that ripen in summer are especially dangerous. For a person, eight berries are a lethal dose. The juice of this shrub is also poisonous: it is worth breaking off a branch, as redness and blisters appear on the skin. The juice contains the poison daphnin, which, when ingested, causes convulsions and vomiting.

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Crow's eye A herbaceous plant, the fruit is a black berry, reminiscent of a crow's eye (hence the name). The whole plant is poisonous, especially the berries.

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May lily of the valley Grows in light forests, on the edges, in thickets of bushes. Poisonous fruits - red berries.

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Spotted hemlock One of the most poisonous plants in our region. In appearance, it resembles dill. The fruits are small, similar to the fruits of cumin, dill. They differ in that they have five very convex wavy light ribs. The stems and petioles are covered with a bluish bloom and purple spots, which distinguishes it from other similar plants. The whole plant emits an unpleasant mouse smell. Hemlock grows near ravines, roads, around drying up reservoirs. All parts of the plant are poisonous, but especially the fruit. A few minutes after poisoning, stomach pains, severe weakness, dizziness appear. The gait becomes shaky, the pupil is dilated, the body temperature drops sharply. The plant is dangerous all summer.

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Celandine large Perennial herb with bright orange milky juice. Blooms all summer. Poisonous: contains 20 alkaloids close to opium.

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Bittersweet nightshade The plant is poisonous, contains alkaloids (corned beef, etc.). Signs of poisoning - a state of stunning, uneven shaky gait, dilated pupils, arrhythmia. Then there are pains in the stomach and intestines, diarrhea, vomiting.

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Buttercups Most plants in the buttercup family contain poison. There are several species of buttercups in our area and all of them are poisonous. Grow in all areas, in a variety of places. Poisonous ranunculus species contain volatile substances, smelling sharp and burning in taste. The poison irritates the mucous membrane of the eyes (temporary loss of vision), larynx, nose, which causes coughing. The juice of the plant, once on the skin, causes abscesses. When the plant is ingested, the kidneys and stomach are affected.

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Ledum marsh The whole plant is poisonous. Popular names: bagno, fragrant bagun, marsh madness, swamp. It grows in peat bogs, in wet pine forests, less often in mixed and dry coniferous forests, on moss cushions.


Poisonous milestone (family Umbelliferae) Poisonous milestones. It grows along the banks of rivers, streams, in lowland swamps. All parts of the plant are poisonous, especially the rhizome. It has a pleasant enough smell, which is why it can be unknowingly used as food.


Hemlock spotted. Grows in wastelands, garbage dumps. It has a branched stem, naked, with a bluish bloom, with dark red spots. The poison is contained in the stem of this plant, as well as in the seeds and leaves. At one time, the Greek philosopher Socrates was poisoned with the juice of this plant. Hemlock spotted. Grows in wastelands, garbage dumps. It has a branched stem, naked, with a bluish bloom, with dark red spots. The poison is contained in the stem of this plant, as well as in the seeds and leaves. At one time, the Greek philosopher Socrates was poisoned with the juice of this plant.


Henbane black (nightshade family). It grows in weedy places, meadows, roadsides. The whole plant is poisonous, especially the seeds. Henbane black (nightshade family). It grows in weedy places, meadows, roadsides. The whole plant is poisonous, especially the seeds.


Bittersweet nightshade Grows among shrubs along ravines, river banks. Semi-shrub. Leaves and fruits are poisonous. Infusions and decoctions are used to combat harmful insects. For medicinal purposes in folk medicine, it is used for skin diseases, colds. Used in homeopathy.


Wolfberry deadly Shrub growing in mixed forests. The whole plant is poisonous: leaves, fruits, bark. 10 - 15 berries can be fatal. It blooms in early spring, the flowers have a delicate pleasant aroma, the plant is beautiful even during fruiting, but because of its toxicity it is rarely used for decorative purposes.


All types of buttercups are poisonous, which is reflected in the name of some species: caustic buttercup, l. poisonous l. burning. All members of this family are poisonous. In addition to buttercups, in our meadows there is often a European bathing suit, in bushes - a wrestler or aconite tall, along the banks of rivers of streams - marsh marigold


Gravilat river Grows in damp meadows, shrubs. It is used as a food and spice plant for tanning hides and dyeing wool. Infusions and decoctions of rhizome roots can neutralize lethal doses of snake venom. Helps to restore strength after a serious illness.

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Man's acquaintance with poisonous plants began at the dawn of his history. This was facilitated by my own, often bitter experience and observations of wild, and then domestic animals, which usually avoid such plants. Accumulating information about poisonous plants, people increasingly began to use them in their lives. Of particular importance are plants used to treat diseases, prepare baits for animals, and create poisoned weapons. Many of these plants were considered sacred. In some countries, poisonous plants have been used to determine the guilt of suspects in crimes: they were given a dose of plant poison, the survivor was considered innocent. Poisons were also used to execute those sentenced to death. Poisonous plants make up approximately two percent of the total number of species, in our country there are about 400 species. A bit of history

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Nightshade sweet - bitter. Grows in damp forests, water meadows, banks of ponds and rivers. The flowers are purple, similar to potato flowers. Stem branched, climbing. The fruits are bright red berries. The whole plant is poisonous and used medicinally.

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European swimsuit. Grows in damp meadows, clearings, bushes. Petals small, orange. In bad weather, small insects hide in them. The leaves are palmate-five-parted, with sharp denticles. The stem is upright. The flower turns the threads yellow. The plant is poisonous, especially the rhizome.

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Milestone poisonous (poisonous hemlock) Grows along the banks of stagnant waters, in damp places, sometimes in the water itself. The flowers are white, small, collected in a complex umbrella. The leaves are pinnate, doubly-triple-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. The whole plant, especially the rhizome, is very poisonous. The juice of the rhizome is fatal in the smallest doses.

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Marsh calla Grows along the swampy banks of rivers, lakes, ponds, and swamps. It blooms with small flowers collected in an inflorescence-cob, it is surrounded by a greenish-white leaf - for this plant it got its name. The leaves are large, thick, heart-shaped on long petioles. The plant is poisonous!

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Buttercup caustic Grows in damp meadows and clearings. It blooms with yellow shiny flowers. In damp weather and at night, the flowers close and droop. The leaves are dissected into small lobes. Stems branched, erect. The plant is poisonous, especially during the flowering period. In hay, ranunculus is harmless, because when it dries, the toxic substances disappear.

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Shepherd's purse Grows along the roads, in vegetable gardens, in yards, in glades. The flowers are small, white collected in a brush. Pinnately dissected leaves, fruit-pods are triangular, notched in shape similar to a shoulder bag, so the plant is called a shepherd's bag. Young small leaves are used to make soups, spring salads, delicious fillings in pies. Shepherd's purse is good food for rabbits. The plant is medicinal.

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Common tansy Grows along roads, on borders, near dwellings, in gardens, in sparse forests. The flowers are yellow, collected in small baskets resembling buttons or rowan berries. The leaves are alternate pinnately dissected, arranged so that their ribs 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!

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First aid in case of poisoning by poisonous and aromatic plants If you suspect that plant poison has entered the human body, you must immediately, without waiting for the appearance of signs of poisoning, begin to provide first aid to the victim. Even if there was spontaneous vomiting, the victim is recommended to drink four to five glasses of warm water, children - at the rate of half a glass for each year of life, induce vomiting. If a person is unconscious, vomiting should not be induced. Then you need to take substances that prevent the absorption of poison into the blood: a few tablets of activated charcoal or its substitutes - starch paste, two or three egg whites, stir in a glass of water, milk or crackers. Induce vomiting after 15-20 minutes. Instead of water, you can give a light pink one percent solution of potassium permanganate.

Poisonous plants of the forest

Gil Natalia Nikolaevna,

primary school teacher MG

year 2012


  • Most forest flowers that bloom in spring are poisonous. Being the first flowering plants, they stand out more brightly from others, so it is believed that their poisonousness is a defense against being eaten.

raven eye

It has a bluish-black berry resembling a crow's eye. The whole plant is poisonous, especially the rhizome and berry.

For the plant itself, toxic substances are of great importance. They protect the plant from animals that might eat its stems, leaves, roots, or seeds.


  • The whole plant of the wolf's bark is poisonous, especially the fruits! When in contact with wet bark, blisters and ulcers appear. At the same time, general poisoning of the body occurs. The very strong smell of wolf bark sometimes causes a runny nose, sneezing and coughing.

Lily of the valley

Lily of the valley grows in the forest. The whole plant is poisonous, but especially the fruits - orange or red berries, they should not be touched, and even more so eaten. They are poisonous! Yes, and the whole lily of the valley plant is poisonous, but preparations from its leaves, flowers, seeds are medicines that improve heart function. But foxes eat berries without harm. For them, they are anthelmintic.


Evergreen coniferous tree or shrub. Often used in ornamental horticulture, it has a very slow growth and therefore lends itself well to shearing, but danger is hidden behind the external beauty of the yew. Both the needles and the seeds of the fruit contain a strong, dangerous poison that can quickly lead to cardiac arrest.


wild rosemary

Evergreen, strong-smelling, low shrub. Its leaves are oblong, leathery with the edges wrapped down. The flowers are white. The aerial part of the plant is poisonous. In case of poisoning with wild rosemary, weakness, drowsiness, nausea, vomiting, respiratory failure, suffocation are manifested. Sometimes poisoning occurs in pickers of blueberries growing next to rosemary.


  • In the forest you can find a huge, herbaceous plant with large, white flowers and spreading leaves. This is a poisonous hogweed. When the juice gets on the skin, inflammation occurs, turning into a severe burn. In addition to burns, there are: chills, dizziness, headache, bubbles that appear on the skin with a secondary infection, deep ulcers can develop.

Weh (hemlock)

This herbaceous plant is a bit like parsley. Small white flowers are collected in an umbrella. All parts of the milestone, when rubbed between the fingers, emit an odor reminiscent of the smell of celery or parsley. The rhizome looks like a carrot, but it is this part of the plant that is the most dangerous, since it contains the most poison.


Fern

Fern is a large plant with a height of 40 to 100 cm with pinnate leaves and a thick rhizome. The danger is the rhizome of the fern.


Poisonous plants of the forest


  • What plant is called bird's eye?
  • The name of which poisonous forest plant is associated with the name of the beast?
  • Most often, blueberry pickers get poisoned from this plant.
  • We smell the freshness of the forest Brings in late spring A fragrant, delicate flower From a snow-white brush.
  • This coniferous tree is very fond of landscapers, it grows slowly and is easy to shear.
  • The juice of this plant leaves a severe burn that does not go away for a long time.
  • What plant helps the fox get rid of worms?

First of all, you should be well aware that you can collect and eat only those plants that are well known.

It is necessary to unlearn the habit of taking the first berry, a blade of grass that comes across in your mouth, tearing off the bark from the rods.


  • If something goes wrong, you need to act quickly and decisively.
  • Attempt to induce vomiting and, if conditions permit, lavage the stomach.
  • To do this, drink several glasses of warm water with the addition of 1-2 teaspoons of salt to each glass.
  • In the absence of vomiting, it should be caused artificially by pressing the handle of a spoon or two fingers on the root of the tongue.
  • This cleansing must be repeated several times.
  • And of course, seek medical help as soon as possible.

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