have a rest
Species name Wu Tong Chinese alias Qingtong, China Wu Tong Latin name Wutong English name Wutong genus classification Plant kingdom, angiosperms, dicotyledonous plants, Malvaceae, Wu Tong genus.
morphological character
Sycamore tree (Figure 2)
Platanus acerifolia is a deciduous tree with a height of12m; The bark is turquoise and smooth. The leaves are heart-shaped, palmately 3-5-lobed, with a diameter of 15-30 cm, triangular lobes, tapering at the top, heart-shaped at the base, glabrous or slightly pubescent on both sides, 7 basal veins, and the petiole is as long as the leaves. The panicle is terminal, about 20-50 cm long, and the lower branch is as long as 65438 02 cm, with lavender flowers; Calyx 5 deeply divided to the base, sepals strip-shaped, curled outward, 7-9 mm long, with yellowish pubescence on the outside and pilose on the inner surface only at the base; Pedicels are as long as flowers; The pistil of the male flower is as long as the calyx, and the lower part is thick and hairless. The anthers of 15 gather irregularly at the top of pistil, and the degenerated ovary is pear-shaped and very small. The ovary of the female flower is spherical and hairy. Follicles are membranous, stipitate, and split into leaves before maturity, with a length of 6-1 1 cm and a width of 1.5-2.5 cm. The outer surface is short or almost hairless, and each hair follicle has 2-4 seeds. The seeds are spherical with wrinkles on the surface and about 7 mm in diameter. Flowers bloom in June. [ 1]
geographical distribution
Produced in northern and southern provinces of China, it is cultivated from Hainan Island to North China. Also distributed in Japan. Most of them are cultivated artificially. [ 1]
Growth characteristics
Buttonwood likes light. Like warm climate, not cold-resistant. Suitable for fertile, moist sandy loam, such as alkali. Roots are fleshy, water-resistant, deep and thick; The germination ability is weak, so it is generally not suitable for pruning. It grows fast and has a long life span, and can live 100 years. In the growing season, the roots rot and die after being flooded for 3 ~ 5 days. Leaves grow late and fall early in autumn. It has strong resistance to a variety of toxic gases. Afraid of viral diseases, moths and strong winds. It should be planted on the edge of villages, houses, hillsides and limestone hillsides. [2]
cultivation techniques
China phoenix leaf
Platanus acerifolia is often propagated by sowing, or by cutting and rooting. Harvest the fruit when it is ripe in autumn, dry it and thresh it, then sow it in the autumn of that year, or store it in sand until the spring of the next year. The row spacing of drilling holes is 25 cm, the thickness of covering soil is about 1.5 cm ... and the sowing amount per mu is about 15 kg. Seeds germinate regularly, 4-5 weeks after sowing. Dry-stored seeds often germinate unevenly, so they can be soaked in warm water before sowing to accelerate germination. Under normal management, the height of the seedlings in that year can reach more than 50 cm, and then they will be planted and cultivated in the next year. Three-year-old seedlings can leave the nursery. The planting place should be chosen in a high and dry place, and base fertilizer should be applied in the hole. After drying, the incision should be sealed with wax. Pay attention to pests such as Gynostemma pentaphyllum, litchi stinkbug and Hymenoptera. Can be controlled by petroleum emulsion, dichlorvos, dimethoate and methamidophos. In the north, young trees should be wrapped with straw ropes to keep out the cold in winter. Fertilize once in winter and once in early spring. [3] [3]
Edit the economic value of this paragraph
Buttonwood is an ornamental tree planted in the garden. Wood is light and soft, which is a good material for making wooden boxes and musical instruments. The fried seeds can be eaten or pressed with oil, and the oil is non-drying oil. Stems, leaves, flowers, fruits and seeds can all be used as medicine to treat diarrhea, hernia and premature gray hair, and have the effect of clearing away heat and toxic materials. The fiber of bark is white and can be used for papermaking and rope weaving. Wood shavings can leach out mucus, which is called wood shavings moistening hair. [ 1][3]
Edit this gardening landscape.
Wu Tong, China
Buttonwood tree has a tall trunk, lush foliage, oval crown, straight trunk end, smooth green bark and thick lateral branches, which are emerald green. It grows rapidly, survives easily and is resistant to pruning, so it is widely planted as a street greening tree species and also as a fast-growing tree species; It has a strong antagonistic effect on toxic gases such as sulfur dioxide and chlorine. [3]
Edit the cultural connotation of this paragraph.
The ancient poem "Ode to the Sycamore Tree"
Because the phoenix tree is tall and straight, it is the crown of the tree. It has been valued since ancient times. It is often associated with the phoenix. Phoenix is the king of birds. Phoenix is most willing to inhabit the phoenix tree, which shows the nobility of phoenix tree. In China's Book of Songs, there is a record about the Chinese parasol tree. In the Book of Songs, in the elegant scroll, there is a poem that reads: "Feng Huangming has left, and he is in Gorkon. The phoenix tree was born in the morning. It's growing and embarrassing. This poem is about the lush growth of the phoenix tree, which attracted the crow of the phoenix. It is the luxuriant phoenix tree; Yong Yong Bo, it's the voice of Feng Ming. In Zhuangzi's Autumn Water, I also talked about the phoenix tree. Talking about Zhuangzi's meeting Keiko, he said, "There are birds in the south, and their names are young. What do you know about them? Husband and child, born in the South China Sea and flying in the North Sea, are not just phoenix trees ... "In this article, phoenix trees are also linked, and the" young "here is a kind of phoenix. He said that the phoenix flew from the South China Sea to the North Sea, and only the phoenix tree fell. It can be seen that the phoenix tree is noble. In the thirty-seventh chapter of the Romance of the Three Kingdoms, there is such a description: "The phoenix flies thousands of miles away and does not live on the road; Master is on one side, not the Lord. "Because the ancients often associated the phoenix with the phoenix, today people often say," If you plant a plane tree, you will have your own phoenix. " Therefore, in the past, in a well-off family, phoenix trees were often planted in the yard, not only because of its imposing manner, but also because it was a symbol of good luck. [4]
Lyrics of the song "buttonwood"
An autumn wind in the distance drove away the familiar leaves, and there was no warm shade from then on. I can't hear you. I can't hear the tranquility in the forest ~ my childhood buttonwood ~ my youth buttonwood ~ ~ A distant autumn wind blew from my buttonwood and hung all the fruits on it. When the sowing season comes, you can't hear the spirit of life ~ the buttonwood of childhood ~ the buttonwood of youth ~ the buttonwood of heart ~ ~ ~ the buttonwood of heart.
Feng Zikai's Wu Tongshu
There are several buttonwood trees in front of the window of the apartment building. These are all things from the next yard, but they are all mine in form. Because they are at a proper distance from me, it seems that they are specially planted for me to see. Their owners may know their state better than I do; But what about their overall appearance? Because it must be seen from a considerable distance. In the Tang Dynasty, there was a poem saying, "The mountains are far away, and the beginning is tolerant". I thought trees were the same. Since early summer, these phoenix trees have shown various appearances in front of me with heavy makeup and caressing gestures. In late spring and early summer, I saw the sight of Xintong bovine colostrum. Those little yellow leaves clustered on the bare branches, like a tree lamp, like a clip-and-paste pattern of primary school students, arranged evenly and childlike. There are also various techniques for plants to grow leaves. Some metabolism, deceptive eyes secretly turn green and yellow. Some of them are so tiny that people don't realize that they have changed from bare branches to green leaves. Only the leaves of the buttonwood tree are the most clumsy, but the attitude is the most frank. Their branches are sparse and thick, and their leaves are flat and big. All the leaves are alive, and the whole tree is obviously deformed. In summer, I saw the green leaves turn into shade again. Those round fans have big leaves. Grow layer by layer. At first glance, there is no gap, like a big green shovel, and like a castle peak in a pattern painting. Among my common garden plants, except bananas, leaves are as big as phoenix trees. Although banana leaves are large in shape and few in number, it takes several days for lilacs to unfold a leaf, and the leaves of the whole tree are few and far between. Although the aircraft blades are not as big as them, they are more numerous. This thing like a pig's ear hangs from the low branch to the top of the tree. There are several buttonwood trees in front of the window. I think there is too much green. The ancients said that "the banana is divided into green screens", and the field of vision is too low, just what you see under the front window. If you go upstairs and look out, bananas will fall under your eyes, and you should see the phoenix tree being divided into green screens. A month later, I saw the fallen leaves of the plane again. What a sad expression! At first, green darkens and becomes dark green; Later it changed from dark green to brown; The north wind came together, and they made a fuss. The big yellow leaves began to quit. At first, one or two leaves suddenly fell off. Later, a large number of leaves flew down in droves, as if someone had dropped something from a tall building. The branches gradually became empty, revealing the house behind the tree. Finally, only a few branches were left, returning to the face of early spring. These days, they stood at my window empty-handed, like bachelors who had been married and had children, and their families were ruined. What a pity! I think of an ancient poem: "The trees are high in the mountains, and the wind blows away the leaves." . Wan Li road, why also. Bud: "Now, if we want to collect all their fallen leaves, let them turn green together, let the old branches return, and restore the summer scene, even if we rely on the strength of all the dominators in the world and do the efficiency of all the machinery in the world, it is impossible." There are many things in the world that will turn yellow and green, but nothing can symbolize sadness more than fallen leaves, especially buttonwood leaves. Falling flowers have also been sad. But the life span of flowers is very short, just like a baby dies at birth. Although we pity him, we are not sad because we haven't spent much time with him and have few memories. The life span of leaves is much longer than that of flowers, especially the leaves of Indus, which have occupied more than half a year from birth to extinction, and are so lush and grand! In front of me, a few piles of green, thick, once went up in smoke! The symbol of impermanence is nothing more than this! But their owners, I'm afraid, don't feel this sadness. Because although they planted it and bought it all, they have never seen the above scene. They just sit under the window and look at their roots, stand in front of the steps and look up at their branches and leaves, sweeping the leaves for them. How can you look at their faces? How does Bud feel its own symbol? Bud knows that nature can't possess. As we all know, art can't be possessed.