What is the classification of plants in our country? How many types of plants are there?

There are 450,000 species of plants in the world, of which there are more than 200,000 species of higher plants alone, and there are more than 30,000 species of higher plants in China. There are so many types that for those who are not familiar with it, it is simply disorganized. However, when we understand the classification of plants, we will find that they actually belong to each other and are well organized.

Every plant, whether it is higher or lower, seed or spore, can be found somewhere by saying its scientific name.

Through their efforts, plant taxonomists have largely figured out the relationships between various plants and arranged them in a system according to their proximity to each other, from low to high, from simple to complex. In this system, each plant has its own place, just as everyone has a hukou. The system consists of several levels, the highest being the "boundary", followed by the "phylum", "class", "order", "family", "genus", and the most basic is the "species".

It consists of one or several species, constituting genera, consisting of one or several genera, constituting families, and so on, and finally forming a boundary by several phyla, that is, the plant kingdom.

In the classification hierarchy, the "branch" is an intermediate unit of classification. In the process of identifying plants, if the taxonomic level of "family" can be grasped, it will have the role of outline. As long as you can grasp the characteristics of 15 or 20 common families, you can identify plants.

Of all gymnosperms, it can be divided into 12 families; All angiosperms can be divided into more than 300 families. Under each family, there are 1 to hundreds of thousands of plant species, and some even contain tens of thousands of plant species. For example, there is only one species in the Ginkgo family, more than 3,300 species in the Rosaceae family, and more than 17,000 species in the butterfly family.

Regardless of the number of species in the family, the kinship between these species is relatively close. Therefore, they have a lot in common in terms of morphology, especially in the structure of flowers. As mentioned in the inflorescence, the Asteraceae family has a capitate inflorescence, and the Apiaceae family has an umbel inflorescence.

In addition, there are woody rhinoceraceae, the leaves are almost opposite, the Lamiaceae family has a lip-shaped corolla, and the stems are almost square; The flowers of the Shi'an family are all herbs, and the corolla is in the shape of Shi'an. Rubaceae plants all have aromatic oil glands on their leaves......

Therefore, once you come across a plant that you don't recognize, just judge the family it may belong to. It will not be too difficult to find the relevant professional books on plant classification. Because in almost all classified books, the arrangement of plants is based on families, and the plants of each family are grouped together.

In this world, the creatures that are most closely related to human beings are plants. So far, about 500,000 species of plants have been discovered worldwide, of which about 350,000 have been named by scientists.

Nearly 500,000 species of plants are known to be on the planet.

Among them, there are almost 300,000 species of green flowering plants alone. According to the morphology, structure and living habits of plants, the plant kingdom can be divided into 7 main groups, namely: algae, fungi, lichens, bryophytes, ferns, gymnosperms and angiosperms.

Among them, algae, fungi and lichens belong to the lower plants; Mosses, ferns, gymnosperms and angiosperms are higher plants. Algae, fungi, lichens, mosses, ferns and other plants use spores to reproduce, so they are called spore plants, they do not bloom and do not bear fruit, so they are also called cryptophytes. Gymnosperms and angiosperms can flower and bear fruit and reproduce with seeds, so they are called seed plants or flowering plants.

How many species of local plants are there in Chengde.

Q: Do gymnosperms and angiosperms belong to seed plants?

A: Yes. Q: What is the relationship between dicots and monocots and gymnosperms and angiosperms?

Answer: Gymnosperms belong to dicots, most angiosperms belong to dicots, but some angiosperms belong to monocots, such as rice, wheat, corn, sorghum, leeks, garlic, bananas, etc.

Q: Do dicots only have seeds, and do monocots have fruits and seeds?

A: No, it is not. It should be said that gymnosperms have only seeds, such as ginkgo (ginkgo biloba). Other plants that bear fruit have fruits and seeds.

Q: Is it an angiosperm?

Answer: In addition to gymnosperms, all other plants belong to angiosperms.

I hope it helps.

According to the large: trees, shrubs, ground cover (herbaceous plants, woody plants, lianas, succulent and succulent plants).

1. Gymnosperms.

Plant ClassificationPlant ClassificationGymnosperms are primitive seed plants with a long history of occurrence and development. The first gymnosperms appeared in the Paleozoic, and in the Mesozoic to the Cenozoic they were the dominant plants found on all continents.

Gymnosperms are mostly trees, a few shrubs or vines, usually evergreen, with needle-shaped, linear, scaly-shaped leaves, and rarely flattened broad-leaved (such as bamboo cypress). Most secondary xylem have only tracheids, and very few have ducts such as ephedra.

2. Angiosperms.

About 100 million years ago, gymnosperms flourished and declined, and angiosperms developed to become the most widely distributed and diverse plants on the earth.

Angiosperms, also known as flowering plants and flowering plants, have real flowers, these beautiful flowers are important organs for their reproduction, and they are also the distinguishing feature that distinguishes them from gymnosperms and other plants. There are more than 10,000 genera and about 300,000 species of angiosperms, accounting for half of the plant kingdom, and it can be said that many of the flowers and plants we see belong to angiosperms.

3. Bryophytes.

Plant classification: bryophyta phylum green, seedless greenery. There are at least 18,000 species, which can be divided into 3 classes, mosses, mosses and hornworms. Most bryophytes are 2 5 cm tall, and a few species are up to 30 cm tall.

Bryophytes are found all over the world, from the polar regions to the tropics, and flourish most in humid environments, but they are not sea-dwelling and are highly tolerant of prolonged dry and freezing conditions. It has important economic value for human beings and can be used in agriculture, horticulture, and also as an energy source. Certain bryophytes are used as ornamental plants, such as in bryophyte gardens.

4. Ferns.

Plant classification: Ferns are a general term for lowland wood-growing plants from the Devonian period. They need water as part of the regenerative cycle, and since then they have spawned a variety of species that are still very viable plants today.

Many ferns are beautiful and have high ornamental value, and are famous for their foliage plants. Such as clemat fern, nest fern, staghorn fern, alder, viburnum fern, kidney fern, etc., especially Boston fern.

5. Algae plants.

Plant ClassificationAlgae plants include several different species of organisms that produce energy through photosynthesis. It is generally considered to be a simple plant, and some algae are related to higher plants. Although other algae appear to derive their photosynthesis ability from blue-green algae, they have separate branches in evolution.

Hello, I am inquiring for you here, please wait a while, I will reply to you immediately Plants are one of the main forms of life, including trees, shrubs, vines, grasses, ferns, and familiar organisms such as green algae and lichens. It is estimated that there are about 350,000 species of seed plants, bryophytes, ferns and gymnosperms. Most of the energy of green plants is obtained from sunlight through photosynthesis, and temperature, humidity, light, and fresh water are the basic needs of plants for survival.

Seed plants have six major organs: roots, stems, leaves, flowers, fruits, and seeds. Green plants have the ability to photosynthesize - with the help of light energy and chlorophyll, under the catalytic operation of enzymes, the use of water, inorganic salts and carbon dioxide for photosynthesis, the release of oxygen, the absorption of carbon dioxide, the production of glucose and other organic matter, for the use of plants.