1, oleander: evergreen shrub with pink or white flowers, widely distributed, and its leaves, flowers and bark are toxic. I've seen it myself. When I was a child, I liked to pick its flowers for fun. Now there are many oleanders in the place where I study, so I can only appreciate them and dare not do it again.

2. Digitalis: also known as Digitalis purpurea, a herb, is cultivated everywhere. The whole column is covered with short hair, the leaves are oval, and they bloom in early summer, facing one side, and their leaves are poisonous.

3. Lily of the Valley: Herb, wild in the mountains of northeast and north, with bell-shaped flowers, fragrant white and poisonous whole grass.

4, poisonous hairy convolvulus: also known as Jatropha curcas, shrub, cultivated in Yunnan and Guangdong, China, the flowers are yellow, with purple spots, white milk, and the whole plant is poisonous.

5. Poisonous arrow tree: also known as "blood-sealing throat", deciduous tree, distributed in Guangxi, Hainan and other places, with 20~25 meters high, oval-shaped leaves, purple-red fruit flesh and poisonous sap.

6. Others: sorghum seedlings, cassava, apricot, peach, plum, kernel, polygala tenuifolia, platycodon grandiflorum, Gleditsia sinensis, etc.

Second, plants containing alkaloids

1, Datura stramonium: herb, with a height of1~ 2 meters, erect stems, oval leaves, tubular flowers in summer, funnel-shaped corolla, white, the whole plant is toxic, and the seeds are the most toxic. (It's also a kind of flower I used to pick when I was a child, haha)

2. Belladonna: a perennial herb with alternate leaves, one large and one small, which blooms in summer, bell-shaped, lavender, and the fruit is berry-shaped, dark purple when mature, and its leaves and roots are toxic. (Having eaten its fruit)

3. Fairy: Herbs are wild in Northeast China, Hebei, Gansu and other places. The whole plant is hairy, smelly, flowering in summer, funnel-shaped and yellow, and the whole plant is poisonous.

4. Aconitum: Herbaceous plant, distributed in the mountains and hills of central and eastern China, with erect stems and flowering in autumn, and its roots are poisonous.

5. hemlock: Herb plant, distributed in Northeast China, North China, Northwest China and Inner Mongolia. The rhizome is hypertrophy with aroma and sweetness. In autumn, the stem is hollow, the flowers are white, and the whole grass is poisonous.

6. Gelsemium elegans: also known as Clerodendrum elegans, evergreen shrub, which blooms in summer. It is distributed in Yunnan, Guangdong, Guangxi and Fujian, and its roots, stems and leaves are poisonous, which is used by the people to kill insects. I've heard the name of Herba Lysimachiae, but I haven't seen it myself. )

7. Crocus sativus: perennial herb, flowering 1 1 early to mid-month. The toxin is colchicine, and the poisoning symptoms are nausea, vomiting and diarrhea, which can be fatal if used in large quantities.

8. Pouch peony: a perennial herb of Papaveraceae, with a plant height of 30 ~ 60 cm and a fleshy rhizome. The whole plant is toxic and can cause neurological symptoms such as convulsions. (including all poppies are toxic)

9, Fritillaria: perennial herbs, often used as indoor plants, the whole plant is toxic, containing Fritillaria, which will cause throat allergies, and a large intake can cause throat swelling and suffocation.

10, Ricinus communis: annual or perennial herb of Ricinus of Euphorbiaceae, the whole plant is poisonous, containing ricinine and ricin, which can burn the mouth and throat, cause convulsions and cause death.

1 1, Narcissus: Amaryllidaceae is a perennial herb, which is one of the famous flowers in China, but it is toxic. After eating it by mistake, it has vomiting, abdominal pain, weak pulse, cold sweat, diarrhea, irregular breathing, rising body temperature, lethargy, collapse, etc., and in severe cases, it will cause convulsions and paralysis and die.

12. Desperate grass: it is about 30 ~ 60 cm high, with strip-shaped leaves growing at the base of the stem. There are sparse green and white six-petal flowers at the top of the stem. It is distributed in grassland and rocky and forested areas of North America. Eating it by mistake can cause digestive system disorders, and the poisoning symptoms are similar to those of lily, which can cause death in severe cases.

13, delphinium: a biennial herb of Ranunculaceae, with a plant height of 50-90 cm. The whole herb is toxic, among which the seeds are the most toxic, mainly containing alkaloids. After ingestion, it will cause nervous system poisoning, dyspnea, blood circulation disorder, muscle and nerve paralysis or spasm.

14, hyacinthus orientalis: a perennial herb of hyacinthus orientalis family, whose bulbs are toxic. If eaten by mistake, it will cause dizziness, stomach cramps, diarrhea and other symptoms, and in severe cases, it will lead to paralysis and be fatal.

15, Phytolacca acinosa: perennial herb, plant height1~1.5m. Roots are toxic, which can cause digestive disorders and toxic reactions, but the toxicity of young leaves can be weakened after boiling in water and drying in the sun.

15, others: Tripterygium wilfordii (poisonous root) and nux vomica (Strychni) seeds are highly toxic.

Third, plants containing toxic proteins

1, acacia beans: also known as red beans, distributed in Guangdong, Guangxi, Yunnan and other places in southern China, are woody vines with thin branches, blooming in spring and summer, and beige seeds. Its roots, leaves and seeds are all poisonous, and the seeds are the most poisonous. (I don't want to believe this when I look through the information, hehe. )

2. Croton tree: arbor, distributed in Yunnan, Sichuan, Guangdong, Taiwan Province and other places, flowering in summer, with poisonous seeds.

Fourth, plants containing phenols

1, Ivy: Evergreen woody vine, distributed everywhere, with oval leaves, flowering in late autumn and spherical and orange fruits. The whole plant is poisonous.

2. Poisonous Derris: also known as Derris pubescens, distributed in coastal areas of China, with small leaves, fruit inclusion and toxic roots and leaves. It is mainly toxic to fish.

3. Others: oak, kudzu, sumac, sweet potato, betel nut, etc. Special note: chewing betel nut can increase the incidence of oral cancer.

V. Others

1, Mushroom: There are many kinds, belonging to fungi, so I won't go into details here.

2. Other common poisonous plants: Buxus, Chrysanthemum, Cimicifuga, Holly, hyacinthus orientalis, cactus, mango (skin and seeds), mistletoe, mulberry, iris, Sambucus williamsii, rhododendron, evergreen, etc. Edit this paragraph | Go back to the top toxicity classification of poisons. According to different identification purposes, the classification methods are not consistent. For example, when analyzing poisoning symptoms and pathological changes, they are often classified according to toxicological effects; In the analysis of poisons, it is often classified according to the chemical properties of poisons; In order to trace the sources, uses and effects of poisons on the body, mixed classification is often used. For general public security, the last classification-mixed classification may be the main one.

1. According to the toxic effects of poisons:

(1) corrosive poison. Refers to the poison that has a strong corrosive effect on the local part of the body. Such as strong acids, strong bases and phenols;

(2) substantial toxicity. Poisons that cause pathological damage to organs and tissues are introduced after absorption. Such as arsenic and mercury.

(3) Enzymes are toxic. Poisons that inhibit specific enzymes. Such as organophosphorus pesticides and cyanide.

(4) blood poisoning. Poisons that cause blood changes, such as carbon monoxide, nitrite and some snake venom.

(5) neurotoxicity. Poisons that cause central nervous system disorders. Such as alcohols, anesthetics, valium and hypnotics, strychnine, nicotinic acid, cocaine, amphetamine and so on.

2. According to the chemical properties of poisons:

(1) volatile poison. Poisons that may be separated by distillation or micro-diffusion. Such as cyanide, alcohol, phenol, etc.

(2) Non-volatile poisons. Poisons separated by organic solvent extraction. Such as barbiturates, alkaloids, morphine, etc.

(3) Metal poisoning. Poison separated by destroying organic matter. Such as arsenic, mercury, barium, chromium and zinc.

(4) Anionic poisons. Poisons separated by dialysis or ion exchange. Such as strong acid, strong alkali, nitrite, etc.

(5) Other poisons. Other poisons that must be separated by special methods according to their chemical properties. Such as curculine, carbon monoxide and hydrogen sulfide.

3. Mixed classification. (i.e. comprehensive classification according to the source, use and toxic effect of poisons)

(1) corrosive poison. Including corrosive acids and alkalis, such as sulfuric acid, hydrochloric acid, nitric acid, phenol, sodium hydroxide, ammonia and ammonia hydroxide.

(2) destructive poison. Poisons that can cause damage to organisms and tissues. Such as arsenic, mercury, barium, lead, chromium, magnesium, thallium and other heavy metal salts.

(3) Poisons with dysfunction. Such as poisons that hinder the function of brain and spinal cord, such as alcohol, methanol, hypnotic sedatives, strychnine, atropine, isoniazid, opium, cocaine, amphetamine, hallucinogens, etc. Poisons that hinder respiratory function, such as cyanide, nitrite and carbon monoxide.

(4) pesticides. Such as organophosphorus, carbamate, pyrethroid, organic mercury, organic chlorine, organic fluorine, inorganic fluorine, chlormequat, chlorothalonil, paraquat, potatoxin, methyl bromide, zinc, etc.

(5) rodenticide. Zinc phosphide, diphacinone, atropine, diphacinone sodium, rodenticide, etc.

(6) poisonous plants. Such as aconitine plants, Gelsemium, Datura stramonium, oleander, toadstool, wild grass, fennel, tripterygium wilfordii and so on.

(7) poisonous animals. Such as snake venom, puffer fish, mylabris, toad, fish gall, bee venom, etc.

(8) Bacterial and mycotic toxins. Such as Salmonella, Botulinum, Staphylococcus and other bacteria, as well as Aspergillus flavus, moldy sugarcane, black spot sweet potato and other fungi. Edit this paragraph | Go back to the method of testing arsenic at the top. When testing arsenic poisoning, Reinsch's copper test is still used for screening. The principle is that in hydrochloric acid solution, heavy metals such as arsenic can react with copper to form black precipitate on the surface of copper. It is estimated that this copper test is similar to the principle of "arsenic mirror" that people often say.

This test is usually used as a screening for heavy metal poisoning. When negative, this kind of poison poisoning can be ruled out; Positive indicates heavy metal poisoning. It should be noted that because many heavy metals can react with copper sheets, the blackening of copper sheets is not necessarily arsenic poisoning.

The qualitative test method of arsenic is to heat and sublimate the copper sheet which is positive in Reinsch's copper sheet test, and then test it with a microscope. If hexahedral or octahedral crystals are found, they can be identified as arsenic. Edit this paragraph | Back to the top Cyanide Cyanide Solid Cyanide Common cyanide are potassium cyanide and sodium cyanide, all of which are white solids, which are easy to deliquesce and dissolve in water. Liquid cyanide is mainly hydrocyanic acid, but it can also exist in gas state because of its volatility. Solid cyanide needs to be swallowed, while gaseous cyanide can be inhaled through the respiratory tract or absorbed by the skin. Cyanide is highly toxic. Cyanide poisoning, sometimes called "Kaempferia kaempferia" poisoning, is based on the transliteration of cyanide in foreign languages.

Cyanohydric acid and cyanide are one of the strongest poisons, and they are also one of the fastest-acting varieties among common poisons. The mechanism of cyanide poisoning is to prevent the oxidation and reduction of oxidase in the body, so that tissues and cells can not use oxygen in the blood, causing intracellular asphyxia. When swallowing a large amount or inhaling a high concentration, it often causes "lightning" death. The poisoned person suddenly screamed, then fell to the ground, lost consciousness, dilated pupils, convulsed for 2 ~ 3 times and died. If the dose is small, it will cause acute symptoms, such as throat tightness, intense terror, feeling of tightness in the chest, dizziness, nausea, vomiting and exophthalmos, followed by loss of consciousness, cold sweat, muscle spasm, rapid and weak pulse, superficial breathing, and finally death due to respiratory paralysis. The back and forth time can be10 ~ 30 minutes, or shorter.

When dissecting a corpse that died of cyanide poisoning, you can sometimes smell pungent almond, which can provide some clues for determining cyanide poisoning. However, it should be noted that not all cyanide poisoning will occur, and similarly, not everyone can smell it. The dead body spot can be bright red, purple or dark purple.

Cyanide is often used by many authors to describe the poisoning of novels because of its strong toxicity, small lethal dose and rapid onset of toxicity. However, in reality, cyanide, like many other highly toxic substances, is not created by human beings to "poison" the same kind, hehe! It is widely used in smelting, electroplating and other chemical industrial production processes for the benefit of mankind. Edit this paragraph | Go back to the top ten poisonous plants, the first one is Saito.

Chai Teng's shape is quite Romantic: blue, pink or white flowers the size of sweet beans spread and droop thickly, and it mainly grows in the south and southwest, also known as Yundou tree. Its whole body is toxic, although some reports say that its flowers are not toxic, it is better to be careful. Because a large number of reports show that once eaten by mistake, it will cause nausea, vomiting, abdominal cramps and diarrhea, and corresponding treatments should be adopted, such as intravenous drip and taking anti-nausea drugs.

Second foxglove

The appearance of foxglove is incredible. Although it can grow up to 3 feet, it always gives people a sense of weakness. Pale purple, pink or white flowers grow around the main branches and stems. It also has a more well-known Latin name "digitalis", and its leaves can be used for commerce, which is the raw material of the drug "digitalis" for treating heart disease. If you eat any part of it by mistake in the wild, you will have symptoms of nausea, vomiting, abdominal cramps, diarrhea and oral pain, and even abnormal heartbeat. Doctors will use gastric lavage and other methods to promote detoxification and stabilize the heart by taking drugs. There are many aliases for this kind of plants, such as fairy clock, rabbit flower and witch ring.

The third hydrangea

Hydrangea has a gorgeous appearance, ranging from rose, dark blue to green and white, and it grows rapidly and even grows to 15 feet. It has become a necessary plant for decorating the courtyard. In everyone's imagination, it is as edible as marshmallows and buns, but in fact, once hydrangea is eaten, abdominal pain will occur after a few hours, and other typical poisoning symptoms include skin pain. Fortunately, an antidote to hydrangea poisoning has been developed.

The fourth valley lily

The pleasing lily is also known as the Mayflower, and the bell-shaped small white flower hangs down shyly like a beauty's hair. In fact, it is poisonous everywhere, even at its tip. It may not hurt to touch the valley lily lightly, but if you eat some, you will have nausea, vomiting, oral pain, abdominal pain, diarrhea and cramps, and your heart will be slow or irregular. Doctors will promote the excretion of toxins through gastric lavage and other methods, and make the heartbeat return to normal by taking drugs.

The fifth candle

Candles, also known as flamingo flowers and flamingo taro, are plants whose leaves and stems have strange shapes: their leaves are dark green, heart-shaped, thick and tough, their stamens are long and sharp, with bright red, white or green, and they are surrounded by red, pink or spiritual Buddha buds, all of which are toxic. This flower, also known as flamenco flower or pigtail grass, once eaten by mistake, will feel burning and painful in the mouth, then it will swell and blister, and its voice will become hoarse and tense, and it will be difficult to swallow. Most of the symptoms will be alleviated or even disappeared over time. If you want to relieve the pain, you can choose cool liquid, painkillers or foods such as licorice and flax seeds.

Sixth chrysanthemum

Chrysanthemum is one of the potted plants that people often use to decorate the vestibule during Halloween and Thanksgiving. Chrysanthemum is divided into 0/00 to 200 varieties, which are usually short shrubs. Gardeners planted chrysanthemums to prevent rabbits from making trouble. Do you know why? The head of this flower has some toxicity, and so does human beings. But it is gratifying that although touching chrysanthemums will make people feel a little pain and swelling, doctors will only treat it as a general allergy or inflammation.

Seventh oleander

Different from other plants whose branches and leaves or sap are toxic, every part of oleander is toxic, even if you accidentally inhale a little smoke from burning oleander, it will bring discomfort. In addition, barbecue with its branches and drinking water with red, pink or white oleander flowers will all produce poisoning symptoms. As an evergreen shrub, potted oleander is very popular, and it is also a common variety in the courtyard in the southwestern United States, California and areas with Mediterranean climate suitable for its growth.

The typical symptoms of oleander poisoning are heart rate changes, sometimes bradycardia, sometimes palpitations, and sometimes hyperkalemia. What doctors do is to make the heart rate of the poisoned person regular through drugs, and at the same time take emetic drugs, gastric lavage and eat charcoal with strong absorption to absorb toxins in the body.

The eighth rubber tree with small leaves

Rubber tree with small leaves, also known as Benjamin tree, contains toxic milky sap in its leaves and stems. These plants are divided into trees, shrubs, vines, etc., about 800 species, most of which are potted indoors, and some species can also be planted outdoors in warm areas, and even grow to 75 feet high. The worst consequence of rubber tree poisoning is skin pain and swelling, and doctors will treat it with allergies or inflammation.

The ninth azalea

Rhododendron and Rhododendron belong to evergreen shrubs, which are in full bloom in the courtyard in spring because of their beautiful flowers, but in fact, their leaves are toxic, and the nectar brewed with Rhododendron powder is also toxic. If you eat one of them by mistake, you will feel burning in your mouth, and then the possible symptoms include more and more obvious salivation, nausea, vomiting and skin tingling. Followed by headache, muscle weakness, blurred vision and so on. There will also be slow heartbeat and arrhythmia, and in severe cases, you will fall into a coma or experience fatal convulsions. Of course, before that, the doctor will try to reduce the consequences of poisoning, make you breathe more smoothly, and let you take medicine to make your heart beat back to normal.

The tenth daffodil

The yellow and white daffodils are regarded as messengers of spring, also called longevity flowers. In fact, if they are eaten in large quantities, they will have mild toxicity. Some people will confuse it with onion-people who eat daffodil bulbs by mistake will have symptoms such as nausea, vomiting, abdominal pain and diarrhea. If the patient is seriously ill or the patient is a child, the doctor will recommend intravenous drip or oral medication to alleviate the symptoms such as nausea and vomiting. Edit this paragraph | Go back to the top poisonous flower azalea: also known as azalea. Yellow azaleas contain toxins, which can cause vomiting, dyspnea, numbness of limbs and other symptoms after poisoning.

Cordate telosma: When photosynthesis stops at night, cordate telosma will emit a lot of waste gas, which is extremely harmful to people's health, so it should not stay in front of cordate telosma flowers for a long time at night.

Mimosa: It contains Mimosine. Too much contact will cause thinning of eyebrows, yellowing of hair, and serious hair loss.

Tulip: Tulip flowers contain toxic alkali, and people will feel dizzy and have poisoning symptoms after staying in this flower cluster for two hours, which will lead to hair loss in severe cases.

Nerium indicum: The stems, leaves and flowers of Nerium indicum are poisonous. The milky juice it secretes contains a toxic substance called oleanolin, which will be poisoned if eaten by mistake.

Narcissus: once the human body comes into contact with the leaves and juice of narcissus, it can cause skin redness and swelling; If this juice accidentally gets into your eyes, the consequences will be even more severe. Narcissus bulbs contain Latin toxins, which can cause vomiting after eating by mistake.

Poinsettia: The whole plant is poisonous. Once white milk touches the skin, it will cause allergic symptoms such as redness and swelling, and eating stems and leaves by mistake is in danger of poisoning and death.

Evergreen flowers and leaves: the flowers and leaves contain oxalic acid and Tianmen family elements, which can cause oral cavity, throat, esophagus and gastrointestinal tumors and even damage vocal cords, making people dumb.

Yu Meiren: The whole plant is toxic, especially the fruit is the most toxic. After eating it by mistake, it will cause central nervous system poisoning, which may even lead to life-threatening.

Datura stramonium: Originated in India, it has been cultivated all over China in recent years, with poisonous plants and highly toxic fruits.

Nandina domestica: also known as Tianzhu, the whole plant is toxic, mainly containing tetrahydropalmatine and tetrahydropalmatine, etc. Eating it by mistake will cause poisoning symptoms such as convulsions, spasms and coma.

Five-colored plum: the leaves and leaves are poisonous, and eating them by mistake will cause diarrhea and fever.

Bachelor tree: after the stem is broken, white milk can make the skin red and swollen, and it can cause blindness by mistake.

Clove and cordate telosma: A large number of particles that strongly stimulate the sense of smell are scattered at night, which has a great impact on patients with hypertension and heart disease.

Poisonous flowers include Pinellia ternata, Bambusa Bambusa, Calla calla, Bawangbian, Tiger Sting, Coral Flower, Lycoris purpurea, Cicada, etc. Edit this paragraph | Back to the top 52 kinds of carcinogenic plants: stone millet, variable leaf wood, variable leaf wood, Ficus davidiana, croton rockii, croton pilosa, unicorn crown, catnip, Euphorbia helioscopia, kansui, etc. Sapium rotundifolia, Erythrina fordii, Erythrina crenata, Daphne genkwa, Daphne odora, Euphorbia fischeriana, Daphne odora, Daphne genkwa, Daphne genkwa, Sapium sappan, Desmodium styracifolium, Euphorbia erythrophylla, Erigeron japonicus, Phyllanthus altissima, Pseudoforsythia suspensa, etc.

4. Edit this paragraph | Back to the top: ancient poisonous plants: Mimo, Xuncao, Du Heng, Tantuo, Rongcao, Miscanthus, Xuncao and Jicao.

Shao Qianfang, Lu Yunya, Qin Fenping, Miao Bud, Yin Ruiyin, Xin Shenpu, editor of this paragraph | Back to the top home, the modern decoration materials for flower cultivation contain a lot of chemical compounds, which will more or less emit gases harmful to human health, such as formaldehyde, hydrogen sulfide, benzene and phenol. If you stay for a long time, you will have chest tightness, asthma, nausea and other symptoms. Therefore, for friends who move to a new house, the best choice is those flowers and plants that can absorb these harmful gases, such as: Huweilan can effectively absorb formaldehyde in the air; Roses can absorb hydrogen sulfide, benzene and other gases. In addition, we can also choose rhododendron, osmanthus, gardenia, camellia, chrysanthemum, chlorophytum, geranium, jasmine, cycad, pomegranate, Hosta, rose and so on.

At present, beauty care has become a fashion, especially pure natural plants that can be used for health care are favored by the majority of women. For example, aloe vera has a very magical effect in beauty care. If we keep a few pots of aloe vera at home, we can directly apply it to the face, hair and limbs. In summer, if we are bitten by mosquitoes, applying its juice can reduce swelling and relieve itching, as well as prevent skin allergies and treat beriberi. In addition, there are cactus for slimming, gardenia for promoting blood circulation and relieving annoyance, Albizia Albizia for sleeping and stabilizing, jasmine for relieving depression and digestion, rose for nourishing face and nourishing blood and other beauty and health care products.

If there are old people and children in the family, it is best to raise some flowers with medicinal value, such as: decocting three gardenias with a little honey to treat colds and pneumonia; It is effective to treat mumps in children with cactus. Boiling Rhododendron15g with pig's trotters can treat irregular menstruation and abnormal leucorrhea. In addition, I especially recommend chrysanthemum, cycad for dispelling wind and activating blood circulation, rhododendron for asthma and cough, kumquat with broad chest and soothing mood, orchid with wide circulation, sweet-scented osmanthus with warm interior and cold, Lysimachia christinae with special fossil effects, lily for nourishing heart and strengthening spleen, Lycium barbarum for prolonging life, etc. In the cultivation process, it not only makes us enjoy the fun of labor and the interest brought by flowers, but also provides convenience for our daily life.

In addition, there are many indoor foliage plants, which are especially suitable for growing in indoor diffuse light because of their own living habits. Their leaves are green and lovely, and their postures are graceful. They are also particularly loved by people, such as ornamental ferns, bluegrass, asparagus, green radish, turtle-backed bamboo, brown bamboo, evergreen, cauliflower taro, ivy and rich trees.

A few ornamental plants do have certain toxicity, but we don't have to talk about the color change of poison. According to statistics, most poisoning incidents occur after eating by mistake, and real contact poisoning is very few. As long as you don't eat these plants, their toxins will generally not harm the human body, and whether the human body will be affected by harmful substances secreted by flowers and plants is also related to the individual's physical resistance. Even though some plants contain volatile harmful gases, so far there is not enough evidence that they can cause cancer. There are many kinds of phytotoxins, only a few of which can cause cancer, and most of them only cause skin allergies. However, in families with children, because children are lively and curious, it is easy to eat by mistake, so we should know something about these poisonous ornamental plants, and it is best not to keep them in the room. If you want to breed, you should put it in a suitable place to prevent children from climbing and eating by mistake. For example, cordate telosma: Exhaust gas at night will cause dizziness, cough, asthma and insomnia. Tulip: toxic alkali in flowers can cause dizziness, and in severe cases, hair falls off. Narcissus: the juice in the flower can make the skin red, and the bulb contains Latin toxin, which will vomit after eating. Poinsettia: the whole plant is poisonous, and white milk makes the skin red and swollen. Calla lily: flowers are poisonous and contain alkaloids, which will make you unconscious if you eat them by mistake. Yu Meiren: The whole plant is toxic, and the fruit is highly toxic. Tiger thorn plum: White milk is poisonous, which makes it impossible to sleep. Five-colored plum: The leaves and leaves are poisonous, which will cause diarrhea and fever if eaten by mistake. Evergreen: Leaves contain oxalic acid, which will make people dumb if eaten by mistake. Coral bean: The whole plant is poisonous. Tell children not to eat its red fruit. Nandina domestica: The whole plant is poisonous, containing Tetrandrine, which causes convulsions and coma after eating by mistake. Mimosa: contains mimosamine, which will make eyebrows sparse and hair yellow if exposed too much. Cactus: the thorn contains poisonous juice, and the skin is painful, itchy and even allergic after being stabbed. In short, planting appropriate flowers and plants in the living room will not harm health, but will only benefit the human body as long as we understand their living habits and take certain measures. While planting flowers and plants, choose your favorite and harmless varieties of flowers and plants.