Simple knowledge of cactus

The function of cactus: 1, radiation protection If you put one or two pots of cactus next to the computer, it can help the human body absorb the radiation released by the computer as little as possible.

Because cactus grows in a place with strong sunlight, it has a particularly strong ability to absorb radiation. 2, fresh air cactus breathing is mostly carried out at night when it is cool and humid.

When breathing, inhale carbon dioxide and release oxygen. So putting a monster like Jin Hu in the room is tantamount to adding an air freshener, which can purify the indoor air.

Therefore, it is also an ideal flower for indoor night decoration. 3. Medicinal cactus is a new vegetable with high calcium, high flavone, high polysaccharide, low sodium and no oxalic acid. It is known as the green natural food of 2 1 century, and can be used for dietotherapy and health care.

4. Beauty research shows that cactus contains 18 kinds of amino acids, which are almost all the amino acids needed by human body, in addition to vitamin A and vitamin E. The extract of cactus has a miraculous effect on improving skin quality.

So you can also get beauty. Cultivation methods of cactus: First, change the soil for cactus at an appropriate time.

It is advisable to turn over pots and change soil 1 time in spring (from mid-March to early April) or autumn (from September to early October of 10) because there are many trace elements in the soil that cannot be recycled. Second, when watering, master the principle: "Dry thoroughly, don't do it without watering"; The water temperature should be as close to the soil temperature as possible. Water should be done early (before sunrise) and late (after sunset) in summer and10am ~1/am in winter. And pour the water directly on the pot soil, otherwise it will affect the beauty of the thorn.

In addition, water should be sprinkled on the ground in summer to increase air humidity. Third, fertilization should master the following principles: timely, appropriate, and different from thing to thing.

Fertilization should be carried out in spring and autumn, every 20 days 1 time, and should be carried out in the early morning or evening on a sunny day. If the basin soil is dry, sprinkle some water on the basin soil and then fertilize it, and water it 1 time the next morning, and the effect will be better. Fourth, the light is generally tall, cylindrical and flat. Cactus is resistant to strong light and can be placed outdoors in summer without shading; Smaller spherical species prefer semi-cloudy environments in summer. In summer and high temperature season, from June to August, a round plastic film is covered around the growth point at the top of Jinhu, so that all parts of the sphere grow evenly.

5. The optimum temperature for cactus growth is between 20 and 35 degrees Celsius. In winter, the temperature does not need to be too high. Under the condition of keeping the soil dry, the temperature can be maintained at 4~7℃. When the temperature reaches 30~35℃ in summer, the growth rate of most cacti will slow down, and sometimes some kinds of stems will turn yellow or be burned. At this time, it is necessary to shade the sun and sprinkle more water on the ground to reduce the temperature.

6. Air cactus flowers are mostly native to desert open areas, with good ventilation and fresh air. So we can't make our cactus too boring.

You can also look at Baidu's entry! O(∩_∩)O~ .

2. Knowledge about cactus

Cactus (Dianthus desert plant) Cactus (scientific name: dillenii) is a kind of cactus plant.

Alias fairy palm, Guanyin palm, Wang Ba tree, etc. , are cactus plants. There are more than 2000 species of 70- 1 10 genus in the world, which often grow in dry environments such as deserts and are one of the succulents. Cactus (fig. 1) is mainly distributed in arid areas of tropical and subtropical regions such as South America, Africa, South China and Southeast Asia, and it is a tufted succulent shrub with a height of (1-) 1.5-3 meters.

The upper branches are broadly obovate, obovate elliptic or nearly round, with a length of 10-35(-40) cm, a width of 7.5-20(-25) cm and a thickness of 1.2-2 cm. The top is round, the edge is usually irregular and wavy, the base is wedge-shaped or tapered, green to blue-green, and hairless. The nests are sparse, with a diameter of 0.2-0.9 cm, which is obviously prominent. After growing, the spines often thicken and increase, and each nest has (1-) 3- 10 (-20) spines, which are densely covered with short hairs and barbed bristles. Spine is yellow, with light brown horizontal stripes, rough drill-like, spreading and bending inward, flat and hard at the base, with a length of 1.2-4(-6) cm and a width of 1- 1.5 mm; Barbary bristles are dark brown, 2-5 mm long, erect, more or less persistent; Short wool gray, shorter than barbed bristles, durable. Leaves subulate, 4-6 mm long, green, caducous.

Flowers radial, 5-6.5 cm in diameter; Receptacle is obovate, 3.3-3.5 cm long, with a diameter of 1.7-2.2 cm, with a concave top, a narrow green base, sparsely protruding nests, short hair, barbed bristles, cactus and subulate thorns; Calyx-like tepals obovate to narrowly obovate, with a length of10-25mm and a width of 6-12mm, with a sharp or round tip and a small tip with yellow-green edges; Petal tepals are obovate or spoon-obovate, 25-30mm long and12-23mm wide, with rounded, truncated or slightly concave tips and full or slightly rough edges; Filaments are light yellow, 9- 1 1 mm long; The anther is about 65438 0.5 mm long and yellow. Style length 1 1- 18mm, diameter 1.5-2mm, light yellow; Stigma 5, 4.5-5 mm long, yellowish white. Berries are obovoid, the top is concave, and the base is narrowed into a stalk, 4-6 cm long and 2.5-4 cm in diameter. Its surface is smooth and hairless, purplish red, and there are 5- 10 protruding nests on both sides. These nests have short wool, barbed bristles and spikes.

Most seeds are oblate, 4-6 mm long, 4-4.5 mm wide and 2 mm thick, with slightly irregular edges, hairless and yellowish brown. The flowering period is 6- 10(- 12) months. [2] Cactus is a big family with at least 2,000 kinds of members.

Its hometown is in America and Africa, especially Mexico, and it is called "cactus kingdom", and cactus is praised as "Xiantao" by Mexicans. There is also the habit of taking cactus fruit as fruit in Yunnan minority areas of China.

There is a beautiful legend in the local area: a huge Shan Ying flies around looking for a place to live with a snake in its mouth. When it landed on a cactus full of yellow flowers, it never wanted to leave.

Since then, Mexicans have established their home in this vibrant place-Mexico City. The design of the Mexican national emblem is based on this legend.

[3] Cactus culture likes strong light, is heat-resistant, drought-resistant, barren-resistant, tenacious in vitality and extensive in management, and is very suitable for cultivation on family balconies. The optimum temperature for cactus growth is 20~30℃, and there should be a temperature difference between day and night during the growth period, preferably 30~40℃ during the day and 15~25℃ at night.

In spring and autumn, we should master the principle of "no watering, not too wet" when watering. June-August is the period of vigorous growth. Generally, water 1 time every morning, and replenish water at night according to the situation.

In case of particularly hot windy weather, you can water it twice a day+if you want plants to grow up and have more children, you should water them more; If you want to make flowers bloom and control plant growth, you need to water less. Don't get wet when watering the stems.

During the growing period, dilute liquid fertilizer was applied every 10~ 15 days, and stopped after 1 0 months, otherwise the new tissues were weak and vulnerable to freezing injury. Cactus can be exposed to the sun in hot summer except at noon.

165438+ 10 to March of the following year is the dormant period of cactus. Put it in a sunny and sheltered place indoors, and it can safely overwinter above 5℃. At this time, watering should be controlled and the soil should not be too dry. Cactus should be changed 1~2 times a year.

It is best to do it in spring and autumn, and the basin soil should be weakly alkaline soil with good drainage and permeability. Don't plant it too deep, as long as you can stand firm in the pot.

Cactus mostly grow in arid environment. Some of them are cylindrical, 10 meters high and weigh about two or three thousand kilograms. They stand tall and spectacular.

Some prickly cacti, some of which live for more than 500 years, can grow into giant balls with a diameter of two or three meters. People cut the upper part of it and dig soft and juicy stem meat to quench their thirst. Cactus also has a special ability. In the dry season, it can go into a dormant state without eating or drinking, minimizing the consumption of nutrients and water in the body.

When the rainy season comes, they wake up very sensitively, and their roots immediately become active, absorbing a lot of water, making plants grow rapidly and blossom and bear fruit quickly. [1] The roots of some cactus plants turn into carrots, which can store 70 or 80 kilograms of water.

Someone once put a cactus in a dry paper bag for more than two years. Although it shrank a little, it was poured into the pot and soon grew new roots and resumed growth after watering. Cactus is appreciated by human beings for its wonderful structure, amazing drought tolerance and tenacious vitality.

Cactus also has grotesque stems and bright flowers. Although the grotesque cactus with sharp spikes is daunting, the flowers they produce are particularly delicate and colorful, like tassels.

The whip-like "Moonlight Queen" has large white flowers with a diameter of 50 to 60 cm. Epiphyllum, known as "a flash in the pan", is an epiphytic cactus plant native to tropical forests in Central and South America.

Cactus wins with flowers only for one reason, and thorns and fluff of different shapes and colors are also loved by many viewers. In particular, some bright red and golden thorns and white fluff varieties are even more varied.

No wonder some people call it a "living handicraft". Physiological characteristics of cactus photosynthesis: cam-plant "crassulacean acid metabolism * * *" (CAM) belongs to C4 plant.

The representative plants are cactus, pineapple and longevity flower. In order to survive in arid and tropical areas, CAM- plants were developed.

3. Introduction of cactus

Cactus is full of treasures and has a wide range of uses. Its tender stems can be eaten as vegetables and processed into more than 50 kinds of cactus dishes. The stem slices of cactus can be processed into tablets, capsules, drinks and other health foods. According to the research results of the Institute of Medicinal Plants of China Academy of Medical Sciences, cactus is rich in minerals, protein, cellulose, calcium, phosphorus, iron, vitamin C and vitamin B, which can help to eliminate excess cholesterol in human body, lower blood sugar, blood lipid and blood pressure, and has health-care functions such as clearing away heat and toxic materials, expelling toxin, promoting granulation, promoting qi circulation and promoting blood circulation. The production cost of planting edible cactus is low, no pesticides and fertilizers are used, and it is pollution-free and belongs to green organic food.

Cactus can grow in a desert without water, flowers and trees. Why?

With a strong desire, I seriously explored the "secret weapon" that cactus can grow in the desert. I leafed through the encyclopedia and found out why cactus can survive proudly in the desert, which has always been called "barren land": in the arid environment, cactus leaves degenerate into needles to reduce the evaporation of water; The stem is thick and juicy, and there are developed parenchyma cells to store rich water; The epidermis of the stem has thick and hard wax as a protective layer, or thick fluff to protect it from strong light and reduce water evaporation. Cactus has many branches and big roots, so it can absorb less rain. When it rains, it will grow many new roots on the topsoil and absorb a lot of water. Its big roots are protected by thick cork tissue, and it can survive in hot sand without * * * *. Some people have done experiments, and cactus still lives tenaciously without watering for 6 years. It is said that some big cacti can live for hundreds of years. The largest cactus in the world, with a height of 15- 18m, a diameter of 30-60cm and a weight of10t, can store thousands of kilograms of water. When pedestrians are thirsty, they can dig juicy stem meat at any time to quench their thirst.

In addition, I also found that eating cactus is not only nutritious, but also of high medicinal value. It can be processed into a variety of health products, and it is also the first-class raw material for making canned food, beverage and wine. There are many ways to eat cactus, such as frying, frying, frying, boiling, cold salad and so on. It is very popular in Europe, many African countries and Japan.

Generally speaking, the prickles of cactus plants are caused by the degeneration of leaves in order to resist drought and reduce water evaporation. This theory is obviously wrong. Observe the leaf cactus (Pereskia aculeata), one of the original species of cactus plants. Leaves and thorns are its organs, and leaves are born under thorns. When the leaves fall off, no new leaves will grow at the fallen leaves, but the thorns will not fall off. Branches over two years old have only thorns and no leaves. The palm cactus has a new palm, and its leaves have evolved into thick and short needle-like leaves, which also grow under thorns. When the palm grows thicker (usually the new palm grows for more than a month), the short needle-like leaves turn yellow and fall off, leaving only thorns on the palm. This shows that leaves and thorns are two different organs of cactus plants, and thorns are not degenerated leaves. Thorn is a self-defense weapon for cactus plants to prevent animals from swallowing it.

The prickles of cactus can protect themselves and help reproduction, so they usually have thorns. But there are also some species that have no thorns, such as Planet, Kuroha Jade, Tortoise Shell Peony and so on. But they also have thorns. There are also some species that have thorns when they are young and fall off when they grow up. Some species don't have thorns when they are young, but they grow out when they are old.

This guy is also very meticulous.

4. Knowledge about cactus

The physiological characteristics of cactus plants are as follows: first, its morphology and some structures of epidermis greatly reduce its transpiration. Their epidermis has a thick cuticle, and many kinds of epidermis are coated with wax; The number of stomata is much less than that of other plants, and they are deeply buried in pits with sunken epidermis. Therefore, this plant loses much less water than other plants. Cactus also needs little water in cultivation. Second, many species have white milk or colorless mucus, which is a polysaccharide. Some experts pointed out that their cells contain a lot of pentose, which increases the concentration of cell fluid and enhances drought resistance and stress resistance. At the same time, this mucus and milk can make the wound conjunctiva heal quickly when plants are injured, which not only prevents water loss in the body but also avoids bacterial infection. Using this feature in cultivation, some cactus plants with large cross-sectional area can be cut to the top for cutting. Thirdly, their osmotic pressure is not high, far lower than other desert plants. Therefore, there are no cactus plants in some areas with a lot of soluble salt. This is very important in practice. Don't add high-concentration inorganic fertilizer at one time when applying fertilizer, and don't mix too much salt in the culture soil, otherwise the water in the roots will seep out and the plants will wither. Fourthly, cactus plants are different from ordinary plants in metabolic mode, which is characterized by closing stomata during the day to reduce transpiration, and opening at night to absorb CO2, and within a certain range, the lower the temperature, the more CO2 is absorbed. The absorbed CO2 is carboxylated to malic acid, which exists in large vacuoles. During the day, malic acid decarboxylates to release carbon dioxide for photosynthesis. In a certain range, the higher the temperature, the faster the decarboxylation. This metabolic pattern is called the metabolic pathway of Sedum sarmentosum, and it is also an adaptation to the arid environment. Using this characteristic in cultivation, that is, increasing the temperature difference between day and night in greenhouse as much as possible within a certain range and increasing the indoor CO2 concentration at night, can accelerate the growth of this kind of plants.

5. Information about cactus

Cactus is a tufted succulent shrub in the genus Cactus, which often grows to 1.5-3 meters. Cactus grows in dry environment such as desert all the year round, so it has the reputation of "desert hero flower"

Darwin once said that "natural selection, survival of the fittest", and the evolutionary history of cactus is a good proof.

Cactus likes strong light, is heat-resistant, drought-resistant, barren-resistant, extensive in management and tenacious in vitality, and can grow well in harsh environment, so it is very suitable for family balcony cultivation. In the dry season, cactus can go into dormancy without eating or drinking, which will minimize the consumption of nutrients and water in the body.

When the rainy season comes, it is very sensitive to "wake up", and its roots immediately become active, absorbing a lot of water, making plants grow rapidly and blossom and bear fruit quickly.

Function of cactus

1, medicinal: cactus can clear away heat and toxic materials, relax tendons and activate collaterals, dissipate blood stasis and reduce swelling, relieve intestinal toxicity, cool blood and relieve pain, moisten intestines and stop bleeding, strengthen stomach and relieve pain, and relieve cough.

Cactus is a commonly used medicinal material in traditional Chinese medicine, which has a good curative effect on gastric ulcer, duodenal ulcer, hemorrhoid, acute dysentery and cough, and can also be used externally to treat parotitis, mastitis, carbuncle, external hemorrhoid, snake bite and burns.

2. Edible: Cactus has always been a traditional food in the United States, among which edible cactus is the known edible variety with the highest vitamin content.

Edible cactus contains 8 kinds of amino acids and various trace elements necessary for human body, which not only has the effects of clearing away heat and toxic materials, invigorating stomach and spleen, clearing away throat and moistening lung, and beauty beauty, but also can effectively treat liver cancer, diabetes, bronchitis and other diseases.

3, beauty: take some cactus juice and apply it to your face. /kloc-wash after 0/5 minutes, which has the effect of whitening and hydrating.

In addition, cactus can effectively remove wrinkles, increase skin elasticity and make skin more transparent and smooth; It can also remove free radicals in the human body and effectively promote cell regeneration and repair in the body.

4. Indoor greening: Cactus is called "oxygen bar" at night, and it usually breathes when it is cool and humid at night.

When breathing, cactus inhales carbon dioxide and releases oxygen, which helps to sleep indoors. He is also an expert in adsorbing dust, especially hydroponic cactus, which can effectively purify the indoor environment.

Extended data:

Arima

Cactus is the most exquisite thing in the world. She is so delicate as water that she loses her life at the slightest touch. God couldn't bear to add a suit of armor to her heart, which was as hard as iron and had stinging steel.

Since then, no one can see the heart of the cactus, and all the creatures near her will bleed profusely. After a long time, a brave man tried to eradicate this evil thing. The sword fell and the cactus became two halves, but the middle was green liquid.

It turned out to be a sealed cactus heart, because the loneliness that no one understood turned into a tear. So the flower language of cactus is-strong.

Sogou encyclopedia-cactus

6. Information about cactus

Cactus is a common potted plant in our life, and we all know that its vitality is very tenacious.

Cactus can be seen on the balcony of almost every family. We may know more about the anti-radiation function and great medicinal value of cactus.

In foreign countries, cactus is also regarded as a food material. Cactus is full of thorns, so people can't touch and play with it easily.

Let's learn about cactus. First, the basic introduction of cactus We want to know whether cactus blooms. First of all, we should understand the ecological habits of cactus and so on.

Cactus belongs to Dianthus cactus. Botanists estimate that there are more than 1650 species of cactus in print.

Cactus is native to North and South America, but now it grows all over the world. Although cactus is a succulent perennial, many of them live in dry places.

The stem of cactus is usually thick and contains chlorophyll, grass or wood. Most kinds of leaves either disappear or are extremely degraded, thus reducing the surface area of water loss, while photosynthesis is replaced by stems.

Cactus is different from other succulent plants in that its stem has a cushion structure. Cactus is also known as Guanyin palm. Although cactus has many different properties and types, it still belongs to a class of succulents.

It often grows in desert and other dry environments, mainly distributed in Africa and South America, and in arid areas such as southern China and subtropics. What friends are most puzzled about is whether the cactus blooms. In fact, cactus plants can bloom, as long as they are cultivated properly, they will soon bloom, usually in spring, and flowers usually grow on thorns. Cactus has many flowers of various colors, and can bloom many at a time.

The internal structure of cactus stem is actually the same as other dicotyledons, and there is a cambium between the xylem inside and the phloem outside. However, cactus stems are mostly composed of thin-walled storage cells, and their cells also contain mucus, so they can protect plants from excessive water loss.

The stem of cactus is also its main organ for producing and storing nutrients. Second, the shape of cactus cactus is a plant and the national flower of Mexico.

It belongs to the desert plant Dianthus. Because of adapting to the climate of desert lacking water, leaves evolved into short spines to reduce water evaporation, and can also be used as a weapon to prevent animals from swallowing; The stem evolved into a thick and watery shape; At the same time, the root system covered by it is very large, which is used to absorb the most rainwater when it rains heavily.

Palm plants, also known as cactus plants, include more than 200 genera and more than 2,000 varieties such as cactus, cactus column, cactus and leaf cactus. Higher plants usually have six organs: roots, stems, leaves, flowers, fruits and seeds.

Due to long-term adaptation to the arid environment, most cactus leaves have completely degenerated and disappeared, and only a few primitive species still have leaves. In the south of China, we can often see a cactus with leaves, which is shrubby. When not flowering, it is often mistaken for a different family of plants, bougainvillea.

This is the leaf cactus, also known as wood unicorn, which is the most primitive palm plant. In addition, Palmae also has a unique organ that other plants do not have-the base of thorns, which is the most special thing that distinguishes Palmae from other plants.

But also edible, sweet and nutritious. The stems can be used as feed, and some of them are processed into canned food, candied fruit, candied fruit and so on.

It is said that the nutritional value of cactus juice is no less than apple juice, but it lacks the sweetness of apples. In the desert, cactus juice has become a natural water source for desert travelers.

With the progress of science, people's research on cactus is also progressing. Cactus can not only be used as medicine to effectively treat dozens of diseases, but also be put on the table as delicious food. Some people also make cactus into shampoo to care for their hair.

Third, the role of cactus in home geomantic omen As far as traditional geomantic omen is concerned, although cactus is a good feeding plant, it is considered as an auspicious plant. In the application of geomantic omen, cactus has the function of attracting wealth and ward off evil spirits.

Cactus has a strong vitality and is of unexpected help to home feng shui. It is green, which contributes to health, represents safety and peace of mind, and contributes to the stability of heart beating.

From the perspective of modern science, cactus and cactus can absorb carbon dioxide at night and purify the air. Moreover, cactus and cactus can absorb radiation and prevent cancer, and can be placed next to the computer; In addition, putting a basin on the windowsill can not only purify the air, but also prevent thieves, killing two birds with one stone.

Cactus is a prickly plant, and the placement of cactus is very particular about geomantic omen. In geomantic omen, cactus is a plant with evil spirits, and it should not be too close to the body, otherwise it will repel the aura.

So cactus is best placed on the balcony; If you put it in the office, although it has the function of preventing villains from being right and wrong and enhancing their resistance, it sometimes causes self-criticism; The bedroom is the place where the gas fields meet, so cactus should not be placed in the bedroom at all, otherwise it is easy to have a dispute between right and wrong, leading to gas field rejection. Finally, the information of cactus was introduced with a lot of pen and ink, and many cactus flowers were attached. I hope these materials can not only make consumers notice its role in home soft clothes, but also have more understanding of it.

7. cactus knowledge

Cactus is the general name of succulents in Cactus, and Cactus Peak is a shrubby succulents with many varieties.

Their native places are mostly desert areas, and they like high temperature and dry climate. The stems are spherical or oval, green, and peanuts are in the longitudinal thorns. Cactus usually bloom in the early morning or evening.

There are many colors such as white, red, yellow, orange and green, and the shape of the flower is similar to a long morning glory. Hours to a day.

Cactus is a kind of plant with spherical stems, thorns and flowers, which has high ornamental value. Fairy ball, commonly known as grass ball, also known as longevity pill and short hair pill, is a perennial succulent herb of Fairy Family.

The stem is spherical or round, green, and peanuts are stuck in the thorns. Cactus usually bloom in the early morning or evening, lasting for several hours to a day. Cactus is a kind of stem, leaf and flower with high ornamental value, and it is an artistic masterpiece of hydroponic flowers.

Cactus is a natural air freshener, and it also has the functions of adsorbing dust and purifying air.