It's sunny and sunny today. When I went for a walk in the park, I suddenly saw a few Mimosa plants in the flower bed, which attracted my attention.
I went to the flower bed and touched the mimosa. It looked very "shy" like a shy girl.
Why is Mimosa "shy"? I went home and checked it online. It turns out that the leaves and petioles of Mimosa have special structures. At the base of the petiole and the base of the leaflet of the compound leaf, there is a relatively expanded part called the leaf pillow. The occiput was the most sensitive to stimulation. Once the leaf is touched, the stimulus is immediately transmitted to the pillow at the base of the petiole, causing the two leaflets to close, and the contact force is greater. Not only does the stimulation spread to the pillow of the leaflet, but also to the pillow at the base of the petiole, and the whole petiole droops. Why is this? This is because there is a large vascular bundle in the center of the leaf pillow, and the vascular bundle is full of parenchyma with many intercellular spaces. When the vibration was transmitted to the pillow, the cell fluid in the parenchyma cells of the upper part of the occipital was discharged into the intercellular space, which reduced the turgor pressure of the cells in the upper part of the occipital, while the gap of the parenchyma cells in the lower half remained the original turgor pressure. As a result, the leaflets were upright and the two leaflets were closed, and even the whole leaf fell down. Some people have done research, Mimosa after stimulation 0. Within 08 seconds, the leaves close. After stimulation, the conduction velocity is also very fast, with the highest speed of 10 cm per second. After stimulation, after a while, everything slowly returned to normal, the leaflets expanded again, and the petioles stood up. The recovery time is generally 5-10 minutes. However, if we continue to tease, continuously stimulate its leaves, it will produce a "bored" feeling, no longer any reaction. This is because continuous stimulation makes the cell fluid in the occipital cells lose and can not be replenished in time.
I finally know the secret of Mimosa! Mimosa Mimosa leaves are small, green, and a little sharp. Mimosa is not tall, and the highest one is only about 20 cm.
As the name suggests, Mimosa is called because it is shy. As soon as you touch it lightly, it closes the leaf immediately. In fact, it is not shy, but a kind of self-protection.
If you go climbing, when you are lucky, you will see its shadow all over the mountain. The wind gently blowing, Mimosa with the wind dancing. The whole mountain is like a dance hall. It is the girl dancing in green clothes. Then you will be attracted by its loveliness, and then have the impulse to take it home.
Now Mimosa has become one of my favorite flowers. If you come to my house, you can find Mimosa everywhere. Its shadow can be seen everywhere on the desk, on the windowsill and in the garden. It has become a good partner in my life and study. In my mind, it is always the most lovely, the most interesting, irreplaceable! Mimosa my family has a basin of Mimosa, gently touched, she is like a shy girl, the body shrink up, lovely!
Mimosa with thin green stalks, light to the outside of the branches and leaves, showing a lovely look. Every time I see Mimosa, I can't help but reach out and pat it gently. At this time, her leaves close on the horse. I didn't expect a little Mimosa would be so sensitive.
Every night more than six o'clock, Mimosa always quietly leaves slowly closed. Why do you close the leaves? Is it afraid of the night wind blowing your thin body, or afraid of cold dew wet your tender face? oh I see. You always open your leaves during the day and get tired at night, right?
At night, the breeze blowing Mimosa, at this time Mimosa began to dance graceful. I gazed at this Mimosa plant and did not want to leave for a long time. She seemed to bring me into a beautiful fairy tale world.
When Mimosa blooms, the florets are not conspicuous at all. Green, round, soft, a layer of flower nurseries wrapped in open petals, like a mother to protect the child. Finally, the mother of Huatuo released her hand, and the flower child jumped out of her mother's arms. How beautiful! Flower child is also round, soft, but the body added a pink coat, feel really fun!
Mimosa flower life is very short. But her seed gradually matures, with the wind blowing, will grow more Mimosa on the earth. Mimosa! I praise you, how much fun you have brought to our life! Mimosa nature, thousands of plants, as many as the stars in the sky, the number is also countless. Among thousands of plants, I only like Mimosa.
It has a slender stem with many small sharp spines on it. It's pricked. Don't say how painful it is. Its leaves are round leaflets. Touch it with your hand, it will close the leaves and lower the stem. This is the name of Mimosa.
Do you know why Mimosa is shy? I went to Xinhua Bookstore to look up the book to find out. Mimosa used to grow in the forest. Wild horses, wild boars and other animals often trample on it, making it injured. In order to avoid injury, it closes the leaves and droops the stems. Especially at night, when the sun goes down and there is no sunshine, the wild animals come out more often, and it will close the leaves. Don't think it's dead!
Now, my family has planted two Mimosa, and the flowers are pink. Hua'er is a little ball of wool. It's like my mother playing ball with wool. The flower withers and it bears seeds. I gather these seeds and plant them in the field, waiting for the new Mimosa to grow next spring. Mimosa in my door, there is a young girl like Mimosa. Next to them were clumps of fresh grass.
She is a beautiful dancer. In the wind, she often twists her waist to bring about a variety of dance movements. The vitality of Mimosa is very tenacious. After a burst of spring rain, Mimosa shuddered, rubbed her misty eyes, and broke free from the embrace of mother earth. The sun father-in-law sprinkles the bright sunlight on the Mimosa, and the little dew drops one after another jump on the leaves to make her drink. The leaves of Mimosa raced to sprout.
The main stem of Mimosa is thin and long, and it has several forks. There are green spikes on the green main pole. The pole was covered with small white fluff. The main stem of Mimosa Mimosa is very thin, but there are many leaves. There are four green leaves on each petiole symmetrically, and each green leaf is connected by many long round small feathers, just like the feathers of a bird. At this time, as long as she gently touched, the small green leaves quickly closed to become a blushing little girl, drooping like very shy. There are lilac flowers under the green leaves, fluffy, one ball at a time. Some flowers withered, bearing seeds like pods, hanging in clusters among the branches.
My Mimosa also knows how to abide by discipline. Every morning Mimosa slowly narrowed out a slit, as if just wake up. At about seven or eight o'clock, Mimosa leaves fully open, stretch their arms and legs, and bask leisurely in the warm sunshine. At noon, Mimosa was silvery in the strong sunlight, and the branches covered with white fluffy seemed to become transparent. If it is cloudy at noon, Mimosa will be green. At 7 o'clock in the evening, Mimosa slowly closed her small eyes, like a tired little girl to sleep.
Gently touched her, her open pinnate compound leaf, immediately closed, and then the whole leaf fell down again, showing a "shy" appearance, hence the name of Mimosa.
Every time, I asked my father curiously, "Dad, why is Mimosa bashful when touched?" Dad said that I would go to "100000 why" to find the answer. In the end, my father told me the answer
This phenomenon of leaf closure and petiole drooping in Mimosa pudica is not "shy", but a response of plants to stimulation and vibration. This kind of response is called perceptual movement in biology. It is the result of cell tension change in Mimosa pudica after being stimulated by external environment.
It turns out that the leaves and petioles of Mimosa have special structures. At the base of the petiole and the base of the leaflet of the compound leaf, there is a relatively expanded part called the leaf pillow. The occiput was the most sensitive to stimulation. Once the leaf is touched, the stimulus is immediately transmitted to the pillow at the base of the petiole, causing the two leaflets to close, and the contact force is greater. Not only does the stimulation spread to the pillow of the leaflet, but also to the pillow at the base of the petiole, and the whole petiole droops.
This special ability of Mimosa has its historical roots. Her hometown is Brazil in tropical South America, where there are often strong winds and heavy rain. When the first drop of rain hit the leaves, she immediately closed the leaves and drooped petioles to avoid the damage caused by the storm. This is her adaptation to the change of external environment. In addition, mimosa's movement can also be seen as a way of self-defense. When the animal touches her, she will close the leaves and the animal will not dare to eat her again!
Mimosa pudica belongs to the subfamily Mimosa Leguminosae. It is a perennial semi shrubby herb in its origin. In southern China, Guangdong, Taiwan, Fujian, Guangxi, Yunnan and other provinces are wild, and are often used as cultivated plants in the north and central China. Mimosa height, potted only about 30 cm, ground can grow to about 1 meter, some upright, there are vine. When autumn comes, the flowers bloom one after another, just like a little red ball, very lovely
Mimosa pudica is also known as "zhipucao", "xiaoyanghua" and "houneicao". It is a leguminous herb with alternate leaves and bipinnate compound leaves.
Later, my father also told me that Mimosa is common in roadsides, open spaces and other open places. The whole plant can be used as medicine. The root can be soaked in wine or fried with wine to treat rheumatic pain, neurasthenia, insomnia, etc.; stewed with lean pork, it can treat eye heat swelling, hepatitis and nephritis; the fresh leaves can be mashed to treat swelling, pain and herpes zoster, which is quite effective in relieving pain and swelling.
Later, I want to water her every day, take good care of her, let her grow up quickly and bloom bright flowers! Mimosa I like the simple lily, also like the enchanting rose, but my favorite or that unknown Mimosa.
Mimosa in spring is like a pure little girl. It grows a green leaf almost every other day. In April of spring, Mimosa has grown full of small leaves, like stairs, arranged on both sides. In May, the leaves of Mimosa become bigger, and a mimosa plant is like a fan. Every day, I can't help touching Mimosa, every time the nail touches its leaves, the leaves shrink shyly.
In summer, the tender green leaves of Mimosa become deep, and the leaves of Mimosa become luxuriant. What's more attractive is that Mimosa leaves out pink, lovely round flowers. Next to the flowers are also waiting to open the bud. There are three small flowers close to each other, just like three shapes