I don't know how to draw this picture.
.. and you can see trees all year round, right? ~ cherry belongs to deciduous arbor fruit tree of Rosaceae. Cherry is bright red when it is ripe, beautifully carved, delicious and nutritious, and has high medical and health care value, also known as "Han Tao".
The cherries cultivated as fruit trees in China include China cherry, sweet cherry, sour cherry and hairy cherry. Cherry ripens early and has the reputation of the first fruit in early spring.
The output of cherries in China is 35 million Jin, only 29g per capita, which is equivalent to three big cherries or 15- 17 cherries in China. It can be seen that cherry has a broad market prospect.
The sweet cherry varieties cultivated in China are mainly European and American varieties, which perform well in northern China. Because European sweet cherry generally needs 900~ 1400 hours at a low temperature below 7.2℃ to complete hibernation, it is limited to its large-scale cultivation in southern China. Therefore, China cherry is still the main cultivated variety in southern provinces of China. At the same time, there are few excellent cherry varieties in China, and the cultivated varieties generally show many shortcomings, such as small fruit, sour taste, fruit cracking before harvest, fruit dropping and so on.
The successful breeding of black pearl, an excellent cherry variety in China, has made up for these shortcomings. Pomegranate is a deciduous shrub or small tree, but it becomes an evergreen tree in the tropics.
The crown is clustered and naturally round. The roots are yellow-brown.
It grows vigorously and the rhizosphere is easy to take root and tiller. The height of the tree can reach 5-7 meters, generally 3-4 meters, while the dwarf pomegranate is only about 1 meter or lower.
The stem is grayish brown, with a tumor-like process on it, and the stem is mostly twisted to the left. There are many branches in the crown, and the young prostitutes are angular and mostly square.
Branchlets are flexible and not easy to break. Primary branches are staggered, opposite on strong branchlets, with small spines.
The length of thorns is related to the variety and growth. Lush trees have many thorns, but old trees have few thorns.
The colors of flower buds change with the seasons, including purple, green and orange. The leaves are lanceolate, 1-9 cm long, round or slightly pointed, thick and entire, opposite to the long branches and clustered on the short branches.
Flowers are bisexual, depending on whether the ovary is developed or not. There are bell-shaped flowers and tubular flowers. The former is good at fertilization, while the latter often withers and bears no fruit. In that year, a bunch of 1 flower was planted at the top of the new shoot and at the axil below the back neck to several flowers; Sepals hard, fleshy, tubular, 5-7-lobed, persistent with locules; Petals obovate, as many as sepals and alternate, arranged in imbricate shape. Flowers are divided into single petals and double petals.
Double-petalled varieties have many pistils and are sterile, with dozens of petals; Flowers are red, white, yellow, pink and agate. Stamens are numerous, filaments are hairless.
Pistil has 1 style, which is longer than stamens, with 4-8 carpels and lower ovary. When it matures, it becomes a large, multicellular and multi-seeded berry, with many seeds in each cell. The exocarp is fleshy, bright red, reddish or white, juicy, sweet and sour, and is an edible part; The inner seed coat is horny, and some of it degenerates and softens, which is soft-seeded pomegranate. Lygodium japonicum; Plant morphology: perennial climbing herbs.
Rhizomes are slender, horizontal, dark brown and chestnut brown, with dense knobby hairs. The stem grows indefinitely; Leaves are mostly born on both sides of short branches, 3~8mm long, with hairy dormant buds at the top.
Leaf type 2, papery, triangular at the top of vegetative body, 2 pinnately compound leaves, winglet width 3 ~ 8 mm, with shallow blunt teeth at the edge; Spore leaves are ovoid, and there are tassel sporangium spikes on the pinnate edge. The sporangium is pear-shaped and the ring is located in the small head.
The spore stage is 5~ 1 1 month. Born in hillside grassland or bushes.
Location: Guangdong, Zhejiang; It is produced in most parts of the country. Cinnamomum camphora, also known as camphor tree and camphor tree, is one of the four famous trees in the south of the Yangtze River.
Cinnamomum camphora is a subtropical tree species, mainly distributed in the south of the Yangtze River, and it is an evergreen tall tree of Catalpa in Lauraceae. Flowers in early summer, yellow-green, panicle, broad crown, lush foliage, shady everywhere, magnificent momentum, is an excellent street tree and shade tree.
Cinnamomum camphora has the characteristics of temperature resistance, corrosion resistance and insect repellent because of its special aroma and volatile oil. It is an ideal wood for making expensive furniture, high-grade buildings, shipbuilding and sculpture.
Camphor for daily use is a white crystal extracted from the roots, stems, branches and leaves of camphor tree. It is colorless and transparent, and has a cool fragrance. Used for moth prevention, and also widely used in medicine and chemical industry. In the folk, people often regard Cinnamomum camphora as a landscape tree and a geomantic tree, which means avoiding evil spirits, longevity and good luck.
Cinnamomum camphora is favored by the majority of urban and rural residents, and it has been selected as a "city tree" in cities such as Hangzhou, Yiwu and Maanshan. Cinnamomum camphora is very distinctive, its bark is rough, but its texture is very uniform, and there has never been mottled poplar or tumor of willow. The branch is divided into two and two into four. They won't cut corners or gild the lily. The crown is spherical in shape, drawing a beautiful curve in the sky.
Zhangshu is the calligraphy of Dongpo, Su Like. Round and continuous, handsome and elegant, but quite satisfactory. If it is a hillside full of camphor trees, it is simply a peerless monument of Su Dongpo. Therefore, people who study art like to use camphor tree as the object of sketch.
What is even more rare is that camphor tree has a special fragrance, which can repel insects, and gardeners hardly need to spray pesticides. These two days in Jiangxi, which is famous for its camphor trees, I feasted my eyes, which greatly satisfied my special interest in human nature.
Cinnamomum camphora is everywhere in Jiangxi, and there are many ancient trees over 500 to 600 years old, scattered in villages, rivers and hilltops. Laminaria belongs to the genus Laminaria of Phaeophyta.
Also known as kelp, kelp and Chinese cabbage. Plant morphology: algae are brown, long and leathery, generally 2-6 meters long and 20-30 cm wide.
Algae are clearly divided into sessile bodies, stems and leaves. The fixer is in the shape of a false root, the handle is thick and short cylindrical, and the upper part of the handle is a wide and long blade.
There are two parallel shallow grooves in the center of the blade, with a middle belt in the middle, 2-5 mm thick, and the two sides of the middle belt are thin and wavy. It is also an algae plant. Rhizome is only the root that plays a fixing role, and leaflike part is called leaflike body.
Ginkgo biloba: deciduous trees, up to 40 meters high, DBH can reach 4 meters. The bark of young trees is nearly smooth, light gray, and the bark of big trees is grayish brown, with irregular longitudinal cracks, long branches and short distances, and slow growth. Leaves alternate, scattered radially on long branches, 3-5 clustered on short branches, slender petiole, fan-shaped, light green on both sides, notched or 2-lobed on the broad top edge, 5-8 cm wide (115), with many branched venules.
Dioecious, sparsely coextensive, cones solitary in leaf axils of short branches; Male cones are inflorescence-shaped, each with many stamens and 2 anthers; Female cones have long stems, which are usually bifurcated (sparse 3.
2. What are the main morphological characteristics of trees, and what are their functions after mastering them?
Including the characteristics of plant stems (woody, herbaceous, liana)
Plant leaf order (alternate, opposite, whorled, tufted, basal)
The overall shape of the plant (tower, ellipse, cone, cylinder, ellipse ...) (
Shape of plant leaves (lanceolate, oval, heart-shaped, kidney-shaped, oval, needle-shaped, slender, ...)
Plant tips (sharp, gradual, obtuse, slightly convex, slightly concave, tail tip, short tip, sharp tip ...)
Plant leaf base (heart-shaped, arrow-shaped, prickly stem, clasping stem, shield-shaped, curved ...)
Veins of plants (reticular veins, parallel veins)
Single and compound leaves of plants
Plant leaf margin (entire, serrated, blunt, wavy)
Plant leaf division (pinnate division, palmate division, shallow division, deep division, total division)
Plant flower (complete flower, incomplete flower) (butterfly, lip, cup, radiation, clock)
Plant fruits (berries, fleshy fruits, drupes, pods ...)
3. Is the identification point of trees equal to the morphological characteristics of trees?
The key point of tree identification is not the same as the morphological characteristics of trees, but to identify and judge the varieties of trees according to the morphological characteristics of trees.
1, identify the height and bark: judge whether it belongs to trees, sub-trees, small trees or shrubs; It depends on the bark, what color is the bark, whether there are cracks on the bark, what kind of cracks are there, whether there are spots, what shape and color are the spots, and then what color are the old branches and the young branches. Identify and judge the classification of trees and what families they belong to;
2. Identify single leaves or compound leaves: Look at the leaves and see if the leaves are single leaves or compound leaves. You should also arrange them. Then see if the leaves are cortical or something else. Finally, look at the shape of the leaves, the shape of the base and the shape of the end. Then look at the edges for serrations, and then look at the leaves for wax. If you still can't tell, tear the leaves sideways to see if there is silk in the middle of the leaves. Identify and judge the classification of trees and what genus or species they belong to; If these can't be judged, it depends on the inflorescence of the flower, the fruit (such as berries) and the color of the fruit, so that you can basically judge what a tree is.
4. About the characteristics of various trees
Tiebirch:
Birch is heavier, so the wood will sink in the water, and no matter how long it is soaked in the water, the inside will not rot.
Basham:
Bashamu is the lightest tree in the world, so it is also called "Basha". It's twice as light as a cork.
Wood salt tree:
Every spring, a layer of snow-white salt frost condenses on the trees, and people can eat it as salt by scraping it off with a knife.
Eucalyptus:
Eucalyptus not only grows rapidly, but also is quite tall. The height of eucalyptus globulus in China can reach 70-80 meters.
Jatropha curcas:
Jatropha curcas' white milk will cause poisoning and death when it comes into contact with human and animal wounds.
Extended data:
According to the tree growth type is divided into:
1. The tree is very tall (generally 6 meters to tens of meters), and the trunk is obviously tall.
2. Shrub trees are short (usually less than 6 meters) and the trunk base is very short.
3. Woody plants (such as Parthenocissus tricuspidata) can grow upwards by winding or attaching to other things.
4. Creeping stems and branches grow creeping (such as spreading cypress trees).
According to the ornamental characteristics of trees
1. Appreciate trees (shape trees)
4. Leaf-appreciating trees (mesophyll)
3. Flower viewing trees (flowers and trees)
4. Enjoy fruit trees (fruit trees)
Step 5 enjoy the root tree (root tree)