The name of the French sycamore Appearance Characteristics Effect 20

a, the French plane tree is the main street tree, its seeds are coated with fruit peel to form fruits, belongs to angiosperms, does not meet the theme b, camphor is an evergreen tree of the Lauraceae family The tree is tall and majestic, the crown is wide and round, the whole plant has a camphor aroma, and the twigs are green The tree species has dense branches and leaves, the crown is large and the shade is thick, the tree posture is majestic, it can smoke and retain dust, conserve water sources, consolidate soil and sand, and beautify the environment, it is an excellent tree species for urban greening, and is widely used as a shade tree, street tree, shelter forest and scenic forest Its seeds are coated with fruit peel to form fruits, It belongs to angiosperms, does not conform to the theme C, the seeds of Masson pine are not coated with fruit peel and cannot form fruits, and belong to gymnosperms, but generally not as a road tree, Masson pine is an important timber tree species, and it is an important barren mountain afforestation tree species in the provinces of the Yangtze River Basin in China, which does not meet the theme D, the seeds of Ginkgo biloba are not coated with fruit skin, can not form fruits, and belong to gymnosperms, which are the oldest gymnosperms left after the Quaternary glacial movement, and are one of the most precious tree species in the world, so they are regarded as "living fossils" in the plant kingdomGinkgo biloba is resistant to diseases and pests, and is recognized as a pollution-free planting tree, which is the most ideal tree species for ornamental greening Parks, gardens, residential quarters, on both sides of the road, urban greening, planting ginkgo can be described as "once and for all".

In line with the meaning of the topic, so choose: d

Three-ball plane wood.

platanus orientalis linn.

Platanaceae Plane Tree aliases: French Sycamore, Tung Tree, Three-Ball Plane Tree, French Plane Tree, Pure Land Tree, Sweet Melon, Sweat Tree, Sweat Tree.

Platanus orientalis [Flora of China].

Deciduous large trees, up to 30 meters high, with thin flakes of bark; The young branches are covered with yellow-brown hairs, and the old branches are bald, reddish-brown after drying, with small skin pores. Leaves large, broadly ovate, 9-18 cm wide, 8-16 cm long, base shallow triangular heart-shaped, or nearly truncated, upper palmate-like 5-7 lobed, sparsely 3-lobed, **lobes deeply lobed more than half, 7-9 cm long, 4-6 cm wide, lobes slightly shorter on both sides, a few lobes coarse teeth at the edges, the upper and lower sides are covered with grayish-yellow hairs at first, and later fall off, only hairs on the dorsal veins, 5 or 3 palmately veins, issued from the base; petioles 3-8 cm long, cylindrical, frizzy, swelled at base; The leaves are small, shorter than 1 cm, and the base is sheath-shaped. Spend 4 counting; male globular inflorescences sessile, with long villi at the base, sepals short, stamens much longer than petals, filaments very short, anthers elongated, apical shield slightly enlarged; Female globular inflorescences often have stalks, sepals hairy, petals inverted-lanceolate, carpels 4, columella elongated, apex curled.

The fruit branches are 10-15 cm long, with 3-5 spherical head-like inflorescences, sparsely 2; The inflorescence is centimeter in diameter, the columella protrudes into thorns, 3-4 mm long, and there are yellow hairs between the small nuts, protruding from the inflorescence of the capitate.

French Sycamore. The effect of the tree is that the French plane tree is majestic and magnificent, the trunk is spacious, the leaves are large and the shade is thick, the leaves are yellow in autumn, it is a better greening tree, it has the reputation of "the first greening tree" in the world, and it can also be used as a shade tree and a greening tree species in the planning area. The French plane tree likes the sun, likes warm and humid weather, does not have tight regulations on soil quality, grows and develops quickly, has a long service life, and is widely used in China's urban greening gardens.

The wood material is too soft, the wood is very easy to warp when it dries, and it is not corrosion-resistant, so it is a general material or used for firewood.

The decoction of the fruit juice has a sweating effect, and all of them will have the name of "sweat tree". Landscaping. The French plane tree stands proudly, with dense branches, fast growth and development, and is resistant to pollution, and is the world's most famous greening tree, shade tree, which is also its highest effect.

It is also suitable for landscaping in factories and mines to improve the environment. Materials. The French plane tree grows and develops quickly, with fine textures, and can be used as furniture and man-made boards.

Firewood, raw materials for the paper industry, etc. One of the most complaining areas of the French plane tree is its bee pollen.

and cones are major allergens.

Every year to its 100-fruit period, it is simply allergic.

A nightmare for the crowd. According to research, each cone, the French plane tree, can produce 2 million 5 million fruit hairs, <>

This floating bee pollen and fruit hair can easily enter everyone's respiratory system, causing allergic symptoms and sinusitis in some groups.

Pharyngitis, bronchi.

Inflammation, tracheitis, and many other symptoms. The plane tree belongs to the tall tree of the plane tree family.

The tree pole is straight and majestic, and the height of the tree can reach 20-30 meters. The leaves are deeply cracked and look like the palm of a human hand. The roots of the tree fall off and neatly show a light green color. The fruit is prominently thorny, with a yellowish plush in the middle of the small nuts.

The first of the key use value greening trees is aimed at a variety of toxic gases, noise, and smokeTemperature reduction has a very good effect, suitable for industrial and mining enterprises (strong defense against harmful gases such as dioxide, hydrogen), driving lanes, urban landscaping (environmental pollution work ability is very strong, leaves have the effect of absorbing harmful gases and stagnant dust). However, each fruit ball has 200-5 million fruit hairs, and there are also environmental pollution with strong work ability, and the leaves have the effect of absorbing harmful gases and stagnant dustIt is often easy to cause allergies and respiratory diseases. Therefore, there is a trend of slowly going out.

It has strong resistance to a variety of toxic gases, and can absorb harmful gases, which can cool down, retain dust, reduce noise, absorb harmful gases in summer, improve the relative humidity of the air, adjust the balance of carbon dioxide and oxygen, and improve the air quality.

The French plane tree is very beautiful and a symbol of love. It protects the ecological environment and provides a place for birds to rest.

The French plane tree is characterized by its tall shape, versatility, long lifespan, and adaptability. French plane trees can generally grow up to 30 meters, and some can even reach about 35 meters. The wood of the plane tree can be used to make musical instruments, the bark can be used to make paper or rope, and the plane tree itself is an ornamental tree with a lifespan of more than 100 years.

The tall shape of the tree is one of the main characteristics of the French plane tree, which is botanically known as the three-ball plane tree, which belongs to the large deciduous trees. The plane tree is very tall and straight, and most of the plane trees can reach a height of 30 meters, and some can even reach 35 meters.

The French plane tree is also very versatile, the French plane tree grows very fast, its wood is not only suitable for making musical instruments, but the bark can also be used to make paper and rope. The seeds of the plane tree can be used for food or oil extraction, and it is also a well-known ornamental tree in its own right.

Not only does the plane tree grow fast, but it also has a long lifespan, with most plane trees living for hundreds of years. However, it should be noted that the flower lifespan of the French plane tree is very short, while the lifespan of the plane leaves will be relatively long, but it often takes more than half a year for the plane leaves to completely fall from the first generation.

Adaptability is also a hallmark of the plane tree, which prefers moist, warm climates, but is also hardy. At the same time, it is suitable for growing in slightly acidic or neutral soil with good drainage. Slightly alkaline soils also allow plane trees to grow, but they are prone to yellowing.

<>1. The French plane tree is plane tree, commonly known as the French tree.

2. Large deciduous trees, up to 30 meters high, with thin bark falling off; The young branches are yellow-brown hairy, the old branches are bald, reddish-brown after drying, with fine skin holes, the leaves are large, the outline is broadly ovate, 9-18 cm wide, 8-16 cm long, the base is shallow triangular heart-shaped, or nearly flat, Ueno Shiqiao is palm-shaped 5-7 lobed, sparsely 3-lobed, ** lobes are deeply lobed more than half, 7-9 cm long, 4-6 cm wide, the lobes on both sides are slightly shorter, there are a few lobes coarse teeth on the margin, the upper and lower sides are gray-yellow hairy at the beginning, and later fall off, there are hairs only on the dorsal veins, 5 or 3 palmate veins, emanating from the base; petioles 3-8 cm long, cylindrical, frizzy, swelled at base; The leaves are small, shorter than 1 cm, sheath-like at the base, flowers 4; male globular inflorescences sessile, with long villi at the base, sepals short, stamens much longer than petals, filaments very short, anthers elongated, apical shield slightly enlarged; Female globular inflorescences often have stalks, sepals hairy, petals inverted-lanceolate, carpels 4, columella elongated, apex curled, fruit branches 10-15 cm long, with 3-5 spherical capitate inflorescences, sparsely 2; The inflorescence is centimeter in diameter, the columella protrudes into thorns, 3-4 mm long, and there are yellow hairs between the small nuts, protruding from the inflorescence of the capitate.