Generally speaking, it is possible to identify the type of plant by the leaves of the plant, right o

If you see some beautiful plants in the park or suburbs, but you can't name them, you may not know if there is an app that can help identify the plants, and it would be better if it was a mobile version.

Last weekend, I saw a lot of flowers blooming in the park, and suddenly wanted to make such a software, which is basically like this: take a picture of the leaf or flower with a mobile phone, and then the software identifies some characteristics, compares the plant feature data in the database, finds out some plants with the highest similarity, and displays text or ** description, such as species, flowering period, origin, use and other information. Technologies such as image recognition and artificial intelligence are needed.

About "Leaf Snapshot LeafSnap".

We often see an unknown plant in the wild, and we want to know its name, if you ask an expert, you will find that it is very difficult to accurately describe the shape and characteristics of this plant. Of course, there's another way to take a picture of it, send it out, and wait for an expert to tell you what kind of plant it is. That's fine, of course, but it's still not convenient enough.

In fact, naming is the most basic way for human beings to understand the world, and most of the knowledge we learn is done with the help of "being named", and because of this, knowledge transfer is more often just a one-way process. So when you don't have a name, you're at a loss.

Observed through the leaves and dendritic forms of the plant

The leaves of the same plant have the same characteristics.

Its structure, appearance, veins, color, petioles, etc. are the same (one or more leaf types).

Scientists mainly classify plants based on their characteristics.

They divide plants into two categories: flowering plants and non-flowering plants, according to whether they bloom or not.

Of the 400,000 plant species that have been discovered, flowering plants account for more than half.

Among the non-flowering plants, ferns, algae, and mosses, like flowering plants, photosynthesize themselves to make nutrients.

It is mainly based on morphological structure, physiological activity, etc., and now it is also classified by molecular biology and genetics.

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 to 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.

Plants can be divided into two categories: trees and flowers, trees can be divided into trees, shrubs, Tengben: flowers can be divided into one or two annual flowers and perennial flowers, different seasons we can observe and identify them from different directions, first of all, early spring can be observed from the young leaves of the tree, and the period of germination is also an important factor for us to determine the trees: summer and autumn are mainly judged by leaf color and leaf shape, as well as its flower color and fragrance Flowering season The length of the flowering period:

In winter, when trees have no leaves and flowers and become bare rods, how can we tell? Don't worry, we can look at the overall shape of the tree'The shape of the trunk and the type of trunk are judged.

Judgment of flowers: the current year or the second year of the dead for one or two annual flowers, we mainly judge by observing its leaves and flowers, flowering period flower color, perennial flowers are mostly pulpy flowers mainly observe its leaf color.

Finally, what if you don't know a lot of knowledge, and you still don't know the plants? One way to tell everyone: you can use your own mobile phone or digital camera to take a picture, and then find a book on the relevant tree images for comparison, or look up ** on the Internet to make a comparison.

To put it simply, the roots, stems, leaves, flowers, fruits, and fruits are identified by comprehensive analysis of professional books on plant classification.

The other answers are quite professional, but in fact, there is no need to go so far to learn botany, because most of us are ordinary people, if we want to know unfamiliar plants in life, you only need to install a "love plant shooting" software, which is a professional identification of plant software, you only need to open the software, take pictures of plants you don't know, you can quickly get the name of the plant and all other information.

Scientists mainly classify plants according to their morphological characteristics, and they divide plants into two categories: spore plants and seed plants, according to whether they bloom or not.

Plants can be divided into seed plants, algae plants, bryophytes, ferns, etc., most of the energy of green plants is obtained from sunlight through photosynthesis, temperature, humidity, light, fresh water is the basic needs of plants to survive.

It is estimated that there are about 350,000 plant species in existence, classified as seed plants, bryophytes, ferns and algae. By 2004, 287655 species had been identified, including 258,650 species of flowering plants, 16,000 species of bryophytes, 11,000 species of ferns and 8,000 species of green algae.

Plant Composition:

Angiosperms 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 catalysis of enzymes, the use of water, inorganic salts and carbon dioxide for photosynthesis, the release of oxygen signal, the production of glucose and other organic finch for plant use.

Plant taxonomy is one of the oldest and most comprehensive sub-disciplines of botanical disciplines. In the past, most of the classical classifications were based on external morphology and internal anatomical features, but later they incorporated pollen morphology, geographical distribution, and paleontology.

The following four points are the four criteria for determining the "species" of plants. The basis for the classification of plants is also generally described---

1) Individuals should be closely similar to each other and easily identify them as members of the group.

2) There are gaps between the spectrum of variation exhibited by closely related species

3) Each species occupies a certain geographical area (wide or narrow) and proves to be adapted to the environment they encounter.

4) Individuals in a sexual taxa should be able to reproduce with little or no loss of fertility, and the level or success rate of crossbreeding with other species should be reduced.

There are a lot of technical terms, so let me explain them again.

The individual of the plant is observed from the roots, stems, leaves, flowers, fruits, seeds and other aspects of the plant, and there is a certain similarity. For example, the leaves of the ginkgo tree are fan-shaped, and the leaves of the pentagonal maple are five-horned. Most of the plants are located in areas with similar environments, because the physiological characteristics are the same, and the environment is also the same.

The DNA genetic characteristics of each plant are relatively stable with other plant species, and the success rate of crossbreeding with other species of plants is not high.

To sum up, plants are classified according to the genetic relationship between plants and DNA genetic characteristics.

Scientists mainly classify plants based on their characteristics, observe whether seeds are formed, and divide them into spore plants and seed plants. Characteristic distinction: spore plants are divided into asexual spores and sexual spores, and seed plants have two categories: gymnosperms and angiosperms; High and low grades, higher plants have the differentiation of rhizomes and leaves, and lower plants do not, which belongs to non-embryonic plants; The morphology of the stem is divided into arbors, herbaceous plants, lianas, shrubs and subshrubs.

Scientists classify plants mainly according to their characteristics, which can be divided into two categories: spore plants and seed plants according to whether they form seeds and flower, and then further classify them according to their reproductive patterns, high and low grades, and stem morphology. Plants are diverse and affected by long-term environmental effects of organisms.

1. Reproductive mode

Plants can be divided into spore plants and seed plants, which have different ways of reproduction. Spore plants are divided into asexual spores and hungry sexual spores, such as algae, mosses and ferns, which mainly use themselves and fungi to reproduce, and seed plants have gymnosperms and angiosperms, which are propagated by pollination.

2. High and low grades

Plant characteristics can also be divided according to the hierarchy of higher plants, such as mosses, seed plants and ferns, and lower plants such as fungi and algae. The main difference is that higher plants have the differentiation of rhizomes and leaves, as well as various tissues and organs, and have embryos in their structure, while lower plants belong to non-embryonic plants with simple structures and are single-celled.

3. The morphology of the stem

The morphology of the stem is also a distinctive feature of the plant, which can be divided into arbor, herbaceous, vine, shrub and subshrub. Most of them are cylindrical upright golden stems, as well as square cylindrical shapes, such as broad beans, mint, etc., flat columnar shapes such as cacti, triangular columns with measuring rulers, etc., and can also be divided into stems, roots, bulbs, bulbs, etc.