Is a dandelion a flower?

Question 1: Are dandelions a flower? Asteraceae, can be used medicinally and can clear away heat. There is one thing about dandelion that people often misunderstand. I mainly talk about this. It is a compound flower, which is composed of small flowers. It has tongue-shaped flowers and tubular flowers. The tongue-shaped flower is Unisexual, tubular flowers are bisexual.

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Question 2: When do dandelions bloom? Dandelions generally bloom from May to June.

The scientific name of dandelion is Taraxacummongolicum, also known as endive, yellow flower, mother-in-law, etc. It is a wild vegetable and Chinese herbal medicine well known to women and children in my country, and it is also a seasonal wild vegetable widely eaten by people. It can be eaten in a variety of ways, including cold salad, soup, stir-fry, and side dishes. Although it has been collected for a long time, it has always been in the wild and is even regarded as a stubborn weed. In recent years, with in-depth research on the value of its development and utilization, people have changed their views on dandelion, from a wild vegetable in the past to a delicacy on the tables of hotels and restaurants, especially with the discovery of its medical and health care functions. It has widely attracted the attention of medical experts and nutrition experts. A number of medical health products have also appeared, and coupled with the application of traditional Chinese medicine, the economic value of dandelion is being fully reflected.

1. Botanical characteristics and requirements for environmental conditions

Dandelion is a perennial herbaceous plant of the Asteraceae family that contains white latex throughout the plant. Tap root system, with well-developed, deep and long roots, single or branched, with yellow-brown outer skin; leaves are flat, basal, arranged in a rosette shape, with strip-shaped lanceolate or obovate leaves, about 10 cm long and 3 cm wide, with pinnate margins Deeply divided; the flower stem is cylindrical and hollow, drawn out from the leaves. There is an inflorescence on the top of the flower stem with several calyxes and yellow tongue-shaped flowers. When the fruit is mature, the flower head looks like a white pompon with a pappus. Achenes can be scattered by the wind; seeds are brown and weigh 1 to 2 grams per thousand seeds. Dandelion generally blooms from May to June, has wide adaptability and strong stress resistance. It is cold-resistant and heat-resistant. It can germinate in early spring when the ground temperature is 1 to 4°C. The optimum temperature for seed germination is 15 to 20°C. Germination is slow above 30°C. The optimum temperature for leaf growth is 20 to 22°C. It does not have strict lighting requirements. However, medium light and short days are beneficial to the growth of branches and leaves; it has strong drought and flood resistance and can grow in various types of soil conditions, but it grows well in fertile, loose, moist soil with high organic matter content.

2. The utilization value of dandelion

The edible value, medicinal value and nutritional value of dandelion have been highly praised and affirmed in the medical classics of the past dynasties. Dandelion is rich in dandelion alcohol, choline, organic acids, inulin, glucose, crude fiber, VC, VD, carotene and other nutrients. It is also rich in trace elements and minerals. The most important thing is that it contains a large amount of Iron, calcium, potassium and other minerals needed by the human body. Its calcium content is 2.2 times that of guava and 3.2 times that of prickly pear, and its iron content is 4 times that of prickly pear and 3.5 times that of hawthorn. According to the "Compendium of Materia Medica" and "Chinese Pharmacopoeia", dandelion tastes sweet and bitter, has anti-inflammatory properties, has liver purgative properties, and has the effect of enhancing the body's immunity. Modern medical research shows that dandelion has a strong inhibitory effect on Staphylococcus aureus, inhibitory effect on pathogenic skin fungi, and inhibitory and killing effects on various gram-positive bacteria such as Shigella dysenteriae, Diphtheria pneumonia, and Diphtheria bacilli. It has anti-viral, anti-infectious and anti-tumor effects. Because of this, the commercial development value of dandelion has huge market development potential.

Question 3: Are dandelions a grass or a flower? Dandelion is a perennial herbaceous plant, 10-25cm tall, containing white latex. The roots are deep and long, single or branched, with yellow-brown outer skin. The leaves are rooted, arranged in a rosette shape, narrowly oblanceolate, with large heads and lobed feathers, triangular lobes, entire margin or with several teeth, apex slightly blunt or pointed, base tapered into a stalk, hairless with spider-like soft hairs . The flower stem is shorter or as long as the leaves, elongates when it bears fruit, and its upper part is densely covered with white bead-like hairs. The flower head is single, terminal, about 3.5cm long; the involucre bracts are herbaceous, green, some are light red or purple, with or without small horns at the apex, and white bead-like hairs; the tongue-shaped flowers are bright yellow, with the apex truncated. , 5 tooth clefts, both sexes. Achenes are oblanceolate, khaki or yellow-brown, with longitudinal ribs and transverse nodules. The transverse nodules above the middle level have spiny protrusions, a beak at the apex, and white pappus at the top. Flowering period is early spring and late autumn. Born on roadsides, fields, and hillsides. Produced all over the country. The whole plant is crawling on the ground. The leaves are like shepherd's purse, but slightly larger. There is no upright stem. The flowers emerge from the center of the plant.

Question 4: What color do dandelions bloom? What time does it bloom every day? It blooms yellow every spring and autumn. It does not open and close at any time of the day. Each flower blooms for one to three days.

Question 5: What are the characteristics of dandelion flowers? Question 1: Impatiens fruit pods, Psilosa fruits, tomato fruits, what are the characteristics of dandelion fruits? Answer: The fruit of Pseudomonas aeruginosa: has small thorns. Mode of transmission: hanging on animals. Tomato fruit: Juicy, fresh and tender flesh. Mode of spread: Eaten by animals, pulled out in the woods. Dandelion Fruit: Very light. Mode of propagation: by wind. Question 2: How do tomato fruits spread? Answer: Eaten by an animal, pulled out.

Question 6: What kind of flower is this? Is it a daisy? Or a dandelion flower? Dandelions are not, daisies are not so hairy, dandelions are hairy, but the leaves are not so big and the flowers are not so big

Question 7: What color is the dandelion flower? On that day, Wu Hongli of Ziwei Primary School in Yangxunqiao, Shaoxing County, I led the children to study the article "The Golden Grass" in the fifth volume of Chinese published by the People's Education Press. When I asked everyone to ask questions, one child said: "Teacher, there is a mistake in the text. Dandelion flowers are obviously white, but the book says they are golden. And I have also played with dandelions, and they are indeed white. ." Unexpectedly, his words caused many children to scream. One child even stood up and pointed at the illustration to me. I took a closer look and understood most of it. Fortunately, I am also a native rural teacher and am very familiar with flowers and plants like dandelions. But I still said to the children with a very appreciative tone: "You are so brave. You dare to doubt the text. Well done! But is it really wrong in the text? We can't jump to conclusions on this issue. Now, please read the text carefully and silently. I believe you can discover the truth.” So, the children started thinking while reading without me reminding them, and some of the classmates were discussing and arguing lightly. I quietly waited for the kids to figure it out on their own. Five minutes passed, eight minutes passed... The children's arguments became louder and louder. I learned what they were arguing about during my tour. So, I asked again: "What?" Some children said in a hurry: "Yes, the flowers of dandelions are golden. It says so in the book, and it is also drawn in the illustrations." But some children did not. Plausibly: "The brothers in the article played with and blew dandelions when they were in bloom. Look, in the illustration, aren't the white dandelions flying in the sky?" I let the children speak freely, but some of them were ambiguous because of the illustration. There are both white and yellow paintings on it. They think dandelions may have two colors. One child was quite clever and asked me, "Teacher Wu, what color do you think it is?" I thought it was my turn to speak. So, I cleared my throat and said: "I know that dandelion flowers are indeed golden..." Before I could finish my words, the children who held the first view couldn't wait to cheer. I gestured to stop and then asked, "Tell me, what are the white velvet balls that the brothers played with in the article and in the illustrations?" This stopped them in their tracks. The children who held the second view took the opportunity to provoke. I quickly explained: "The white velvet is not a flower, but the hair on the dandelion seeds. Some impatient dandelions bloom early and set seeds early. One dandelion flower can produce many small brown seeds. In order to spread the seeds everywhere For the sake of home, there is a cluster of white fluff on each seed so that it can float away in the wind. The more seeds there are, the bigger the white fluff is. "Oh, that's it," the children finally realized. The controversy over whether dandelion flowers are yellow or white has subsided. But I think there are many reasons for this turmoil. The first is that children are careless in reading, do not ask for a thorough understanding, and even swallow the information without hesitation. Secondly, today's children's bodies and minds are getting further and further away from nature. Teachers and parents are focusing on their grades, even children in rural areas are no exception. Thirdly, I think there are some shortcomings in the writing of this article: on the one hand, the flower and seed villi are not clearly explained; on the other hand, the order of the natural paragraphs is not appropriate. If the second natural paragraph and the third natural paragraph can be exchanged, , arranged in accordance with the natural law of plants blooming first and then bearing fruit, it will not cause such big misunderstandings among children.

Question 8: Are dandelions a flower? Dandelion generally refers to its spherical seeds with hairy hairs. It must be a plant in itself, with large serrated leaves and yellow flowers, which turn into white balls after the flowers.

Question 9: Are dandelions a flower? Asteraceae, can be used medicinally and can clear away heat. There is one thing about dandelion that people often misunderstand. I mainly talk about this. It is a compound flower, which is composed of small flowers. It has tongue-shaped flowers and tubular flowers. The tongue-shaped flower is Unisexual, tubular flowers are bisexual.

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Question 10: What are the characteristics of dandelion flowers? Question 1: Impatiens fruit pods, Philodendron fruit, tomato fruit What are the characteristics of dandelion fruit? Answer: The fruit of Dipsacus pumila: has small thorns. Mode of transmission: hanging on animals. Tomato fruit: juicy, fresh and tender flesh. Mode of spread: Eaten by animals, pulled out in the woods. Dandelion Fruit: Very light. Mode of propagation: by wind. Question 2: How do tomato fruits spread? Answer: Eaten by an animal, pulled out.